new hire16 Flashcards
(373 cards)
1
Q
What kind of TV uses thousands of florescent lights grouped in sets of three that comprise each pixel?
A
Plasma
2
Q
What type of device provide a customer with the most popular calling features, with enhanced 911 functionality and battery backup
A
eMTA
3
Q
What are the four types of remotes?
A
Universal learning, universal, unified, dedicated
4
Q
How much space should surround a digital converter for proper heat dissipation?
A
2-2.5”
5
Q
What is the purpose of the drop cable?
A
The drop cable delivers RF to the customers home via the wall outlet
6
Q
What is used to compensate for signal loss over long drops?
A
Drop amplifier
7
Q
Which device connects the drop system to the feeder system?
A
Tap
8
Q
What is the installation method of choice to feed outlets in a home from the primary service distribution point?
A
Passive, un-amplified and balanced RF splitting distribution network
9
Q
Shield of drop cable consists of ____ and _____
A
foil and braid
10
Q
What signals are carried on composite video?
A
Brightness, color information and synchronization pulses
11
Q
SPIDF supports which Dolby Digital surround sound formats?
A
5.1, 6.1 and 7.1
12
Q
Which type of cable has become the standard for interfacing Home Theatre componenets?
A
HDMI
13
Q
Which interconnect uses light to transmit audio signals?
A
Toslink, EIA/J
14
Q
Firewire supports the movement of multimedia data and large files at what two speeds?
A
400 Mbps and 800 Mbps
15
Q
What is a combination of spatial image compression and temporal motion compensation?
A
Digital Compression
16
Q
What is the ideal BER of a 256QAM channel of 40Mbps?
A
1.0E-09
17
Q
How much bandwidth has the FCC allocated to a single digital channel?
A
19.39 megabits per second (Mbps)
18
Q
What type of signal is a continuous waveform?
A
Analog signal
19
Q
Who mandates certain frequency levels for various types of communication?
A
The FCC
20
Q
When providing an explanation to a customer, make sure to avoid the use of _____
A
Jargon or Slang
21
Q
What should be done before performaing any work at an install?
A
Discuss details of the install with the customer
22
Q
On an HSD install, after the customer completes the brief FTUE initiation, you (the technician) will take the customer to the Profile Page…what is the web address?
A
http://xfinity.com/profile
23
Q
What are three ways to reduce stress?
A
Take 3 Deep Breaths Count to 10 Take a short break
24
Q
What will will largely determine the quality of your work relationships.
A
Attitude
25
Name two Verbal behaviors to avoid at work:
1) Arguing 2) Swearing 3) Yelling 4) Mocking 5) Talking back 6) Blaming others 7) Talking “under your breath” 8) Not returning phone calls
26
Who is responsible for using the iPhone/laptop/Symbol device to process completed work orders
The technician
27
A hard hat will absorb ___ of the force of a blow
75%
28
What are the four types of gloves?
work, climbing, electrical, acid-resistant
29
What is the ANSI standard for safety glasses?
Z87.1-2003
30
What ANSI standard describes hard hats?
Z89.1-2003
31
What is the purpose of a hard hat?
To prevent head injury
32
The Rule of Three for Xfinity TV:
Provide a Welcome Kit
Demonstrate navigation of the onscreen guide
Explain how XFINITY On Demand and XfinityTV.com work
33
The Rule of Three for Xfinity Internet
Ask the customer to create an xfinity.net e-mail address and password.
Take the customer through the Online Welcome site (Xfinity.comcast.net)
Demonstrate xfinity.comcast.net benefits.
34
Three steps to customer education:
Explain 2. Demonstrate 3. Practice
35
The Rule of Three for Xfinity Voice
Confirm customer’s new phone number
Demonstrate Voice Mail and deliver Comcast Welcome Kit
Discuss benefits of XFINITY Voice Center
36
...are insulated combination pliers and cutting tool used for cutting heavier gauge wire or cables, such as Series 11 drop cable.
Lineman's pliers
37
...is a stand designed to hold and transport a roll of drop cable.
Cable caddy
38
This is a multipurpose tool with a pointed shaft used for starting holes where drilling is required, or making holes in drywall for inserting plastic wall anchors.
Awl
39
...are used like pliers, but are adjustable for different sized objects while maintaining nearly the same leverage.
Channel locks
40
The purpose of Coax's outer jacket:
1. Provides protection 2. Prevents moisture, dirt, & elements from entering cable
41
Name four types of coax:
CATV CATV-X CATV-R CATVP Series 59 Series 6 Series 7 QR320 Series 11
42
The jacket of underground cable is made from ____
Polyethelyne
43
If dielectric material has a higher percentage of air, the attenuation will be ____
Reduced
44
1. Work gloves 2. Climbing gloves 3. Insulated electrical gloves
The three types of gloves you may use during the course of your work
45
Must meet ANSI standards Z89.1-2003 Type I or II with an E-Rating.
American National Standard Institute rating for hard hats
46
This is where the work takes place in a traffic control zone. It includes one or more buffer spaces.
Activity Area
47
Traffic Cones • Drums • Barricades • Lighting Devices • Warning Lights
Types of Channelizing devices
48
There are six things to do inorder to care for someone with Hypothermia. Name 4 out of the 6 treatment options
• Send someone to call 911 or a local emergency number • Gently move person to a warm place • Check breathing and pulse • Give rescue breathing as necessary • Remove any wet clothing and dry the person • Warm person slowly by wrapping in blankets or by putting dry clothing on person.
49
A technology that allows the fast transfer of Bi-Directional Analog and Digital signal over Coax, phone lines, wireless signals and satellite connections.
Broadband Technology
50
A range of wavelengths of electromagnetic emission.
Spectrum
51
Passage of an outside signal into the cable; can result in noise and disruption of the desired signal.
Ingress
52
The U.S. government agency established to regulate electronic communications.
Federal Communications Commission (FCC)
53
Label for consumer electronic devices, such as television sets and VCRs, that are designed to allow direct connection to a CATV network.
Cable Compatible/ Cable Ready
54
What type of cables are used in the HFC architecture?
Coaxial & Fiber
55
Where RF signals from many sources are combined together and fed into a fiber optic transmitter.
The Headend
56
The small flexible wire that connects the feeder portion of the distribution system at the tap to the terminal device(s) at the customer's premises.
Drop Cable
57
Name the 3 active devices in the cable plant.
Amplifier, Node and Power Supply (New Hire: Cable 101: 2-32)
58
What are the four basic components of the distribution system?
-Amplifiers -Coaxial Hardline Cables -Power Supplies -Taps
59
This should be checked where the ladder will be set up, for stability.
The Ground
60
When you are moving the ladder just a short distance down the same leaning surface, such as the side of a house, you may use.......
Side Vertical Carry
61
What are the 4 types of ladder carry.
1. Horizontal carry at the shoulder 2. Horizontal carry at the hip 3. Half-vertical, half-horizontal carry 4. Side vertical carry
62
In general, there are two types of vehicle ladder racks, what are they?
fixed rack and a “drop-down” or “side-winding” rack.
63
Name 4 things that should be inspected on a ladder
Rung locks - operate freely, Feet are on tight and have the proper protective grips/ pads, Rungs are solidly in place - not loose, worn, broken or missing, Fiberglass rails are solidly in place - no cracks, splinters, dents or worn spots, Rope - not frayed, worn or rotten, Rung lock flippers - working and not worn or bent, Pulley and mount bracket - not worn or cracked and wheel moves freely,Strand hooks are solidly in place - not bent or cracked
64
Provides Customers with reference information for quick and efficient resolution to inquiries and or problems.
Welcome Kit
65
Often the only face of Comcast that the customer ever sees.
Comcast Technicians
66
These must be used on all outdoor F-connector interfaces to protect the threads from moisture contamination.
Thread protectors (sealing sleeves)
67
Wall plates must have a ____ inch hex recess molded into the wall plate to hold the F-81 and prevent it from turning.
7/16 inch
68
These types of staples must not be used on coaxial drop cables.
Metal
69
Only products approved by ____ _____ ____ shall be used in the drop system.
Comcast Corporate Engineering
70
Drop amplifiers shall meet the minimum requirements of what ANSI code?
ANSI/SCTE 161 2009
71
Used to protect customer floors from dirt and grime when entering a customer’s home.
Boot Cover
72
Has Steel or fiberglass shank.
Boots
73
Must meet ANSI standard Z87.1-2003 impact safety standard.
Safety Glasses
74
Helps keep hard hat stable on a Technician’s head.
Hard Hat Strap
75
Must meet CFR 1910.268 (g)(2)(i) - (ii) and 1926.959 standards.
Climbing Belt
76
The FCC was established in what year?
1934
77
1988 was Comcast 's ___ Anniversary
25th (est.1963)
78
In 1997, what Tech giant invested 1 Billion Dollars in Comcast?
Microsoft
79
What company was the name of the parent company to NBCUniversal, prior to Comcast's purchase in 2013?
GE (General Electric)
80
What year did Brian Roberts receive his first training as a Cable Installer?
1975 (in the Company's Westmoreland Cable System) ( corporate.comcast.com)
81
Name 3 of the 5 benefits of Fiber Optic over Coaxial Cable.
Low signal loss, Greater Bandwidth, Noise Immunity, Increased Security and Better Durability.
82
Fiber Optic Cable is part of what portion of the overall HFC Architecture?
Transportation System
83
This device converts light energy back to RF energy.
Node
84
Transports modulated light between the fiber node and the headend.
Fiber Optic Link
85
This has replaced the older Tree and Branch architecture in Cable Systems.
Hybrid Fiber-Coaxial Architecture (HFC)
86
Where are the 4 places you should check signal when troubleshooting shooting?
Tap, ground block, splitters, CPE
87
What are 4 things we still do the same as the old (1950s) cable system?
1. We still capture and generate signals.
2. We still convert the signals so we can assign them to frequencies on the cable.
3. we still amplify the signals as the move away from the source.
4. we still convert the signals in the home so they can be used with the customer's electronics.
88
What is a DCRF?
It is a type of headend.
89
A Mechanical device that is fitted onto the coax to allow connection?
F-connector
90
What class safety vest is required?
Class 3 high visibility vest.
91
Used to help make sure commtechs stay hydrated?
water cooler
92
a tool used for cutting metal?
Hacksaw
93
used to dig and bury cables.
Shovel.
94
Used to confirm a level wall plate and house box?
Torpedo Level
95
An aggressive self-feed bit that cuts fast and clean holes in wood.
Auger bit
96
Technology that encodes, compresses, and decodes video and audio so we can pack multiple programs in the same space as we used to carry one TV station.
MPEG2
97
Two commonly used digital SLMs are:
JDSU DSAM Trilithic 860
98
Key piece of equipment used by the commtech is the?
SLM
99
what iOS app is used to connect to Wifi?
Settings
100
what iOS app is used to store phone numbers?
Contacts
101
To maintain the SLM:
Keep battery charged, Clean battery terminals and examine for corrosion. Check SLM against a known source. Wipe the SLM gently and dry the display screen to prevent spots.
102
The volt-ohm meter measures:
Voltage, Resistance, Continuity or voltage, current, and resistance
103
A test instrument used to measure AC and DC voltage, current, and resistance in ohms:
VOM
104
A VOM is used to test:
Cables, AC, power, Batteries
105
Types of volt-ohm meters:
Digital and Analog
106
A polarity tester is used to check these 6 things in an electrical outlet?
Open Ground, Open Neutral, Open Hot,Hot & Ground Reversed, Hot & Neutral Reversed, Correct Polarity
107
The leakage detector is used to measure?
Egress
108
Useful whenever there is a need to check for the presence of low voltage or insulated conductors without having to touch the live wire or cable:
Polarity tester
109
A cable line (overhead or underground) which branches off a main line or feeder.
Tap
110
A cable television system's master control operation where signals are received and delivered on various cable system channels. Also the point at which High-Speed internet, On Demand and local telephone signals are spliced into the cable signal.
Headend
111
The process of converting data into a coded form to prevent it from being read and understood by an unauthorized party.
Encryption
112
Two types of traps:
Negative and Positive
113
Filters that block a channel or channels from being received by a cable TV customer:
Negative traps
114
Remove an interfering carrier from a channel that a customer wants to receive:
Positive trap
115
Any technology used to protect the interests of owners of content and services.
Digital Rights Management
116
A specification developed for protecting digital entertainment content that uses the DVI-D interface.
High-bandwidth Digital Content Protection
117
Date the FCC began requiring service providers to make CableCARDs available.
July 1, 2004
118
U.S. government agency established to regulate electronic communications.
FCC
119
Year the FCC was established:
1934
120
A mandate by the FCC which requires cable operators only deploy digital set-top boxes that have a PC card slot for a multichannel CableCARD, to decrypt channels.
Separable security
121
What is the app that allows you to access the VPN via you iOS device?
Pulse Secure
122
Procedure for installation, reconnects, and installation of additional outlets:
Verify the customers address and greet the customer. Verify that all hardware and cable meet BRIS specicifations.
Reconnect the drop, if it is not connected already.
123
Two ways to carry out a disconnect:
1. Soft disconnect for addressable services.
| 2. Hard or physical disconnect
124
A system of computers, peripherals, terminals, and databases connected by communications lines.
Network
125
A network where devices communicate with each other unaided (one-on-one basis) and various connection styles are available.
P2P Network
126
Similar to P2P Networks, these networks have dependencies on other equipment and services.
LANs
127
Similar to P2P Networks, these networks have servers, routers, and switches with which they communicate or authenticate themselves to operate.
LANs
128
A group of computers and associated devices such as printers and servers that share a common communication line and other resources within a small geographic area.
LAN (Local Area Network)
129
A computer that handles requests for data, email, file transfers and other network services from other computers.
Server
130
The recognition of a user as having a valid account on the system with legitimate access to its resources, usually determined during login by a username and password.
Authentication
131
Found in both residential and commercial environments and are used to communicate internally or to access the internet.
LANs
132
A group of computers geographically far apart, but connected.
WAN
133
The Internet is an example of what type of network.
WAN
134
This type of network spans and connects multiple LANs together.
WAN
135
These types of networks are used by businesses to connect multiple sites together for information sharing.
WANs
136
The largest version of a WAN is known as:
The Internet
137
Comcast cable systems: .NET customers are associated across the Comcast network before connecting to the World Wide Web via what type of network.
WAN
138
The width of a band of frequencies.
Bandwidth
139
Often used to refer to the range of frequencies able to distribute telecommunications services.
Bandwidth
140
This term in communications should be avoided with existing or potential customers: Its meaning has been diluted in recent years, as it has been used to refer to speed, time, file size, or the Internet in general.
Bandwidth
141
A term that is often used synonymously with speed.
Bandwidth
142
Name four factors that influence Network speed:
-Interface Cards-Transport Medium-Switches-Routers-Interference-Congestion
143
Network Speed is calculated in bits per:
Second
144
This term is short for "binary digit" and refers to an electrical impulse representing a zero or one
bit
145
___ has 1000 bytes and is used primarily to measure data storage and sometimes used to describe bandwidth.
Kilobyte (KB)
146
A ___ is measured as "bits per second" and used to express the rate at which data is transmitted or processed.
bit rate
147
How many bits are usually in a byte?
8 bits
148
___ is a single character of data.
bit
149
___ is 8 bits.
Byte (B)
150
___ has 1000 bits and is used to measure speed by many Internet applications.
Kilobit (kb)
151
___ has 1000 bytes and is used primarily to measure data storage and sometimes used to describe bandwidth.
Kilobyte (KB)
152
The term for one character stored or processed by a computer. It is composed of bits, usually eight.
Byte
153
Short for Kilobytes:
KB
154
Equivalent to 1000 bytes
Kilobyte (KB)
155
A capitalized "b" indicates bytes where a lowercase "b" indicates:
bits
156
A lowercase "b" indicates bits where a capitalized "b" indicates:
bytes
157
Disconnected drops must be tightened to a minimum of ___________ onto the locking terminator.
20 inch-pounds
158
The ____ _______ ___ must not be removed following a service disconnect.
Drop address tag
159
Follow these safety precautions in different parts of the house:
Wear hard hats because of limited space, Be aware of the sharp ends of exposed nails, Be aware of standing water, Look for animals.
160
What is the purpose of wall fishing and when would it be necessary?
reduce the amount of visible cable, and installed on interior walls.
161
when getting ready to wall, what is the first thing?
Safety
162
what are 3 of the 5 PPE that should be used for wall fishing.
Leather gloves, hard hat, safety glasses, dust mask, coveralls.
163
Balloon Frame Construction:
A sill is attached to the top. No band is attached to the sill. The outside wall studs are nailed directly to the sill.
164
Three units of measurement used in computer file size.
Kilobyte (KB), Megabyte (MB), Gigabyte (GB)
165
When attaching cable to vinyl siding always consider using _______ _____ as the first choice.
siding clips
166
When attaching cable to siding or shingles:
Attach the cable underneath the bottom row or in a "shadow line" to hide the cable.
167
This unit of measurement is one million bits, smaller than a megabyte and a common measure of network bandwidth.
Megabit (Mb)
168
This unit of measurement is one million bytes and is the most common measure of data storage.
Megabyte (MB)
169
This unit of measurement is used to measure RAM, hard-drive, web storage, and email storage capacities.
Megabyte (MB)
170
This unit of storage is equal to 1000 megabits and is used to describe the bandwidth of high capacity circuits such as those used in the Comcast CRAN.
Gigabit (Gb)
171
This unit of storage is 1000 bytes and is used to describe hard drive or RAM capacity.
Gigabyte (GB)
172
Three units of measurement used in computer file size.
Kilobyte (KB), Megabyte (MB), Gigabyte (GB)
173
what type of saw is used for wall fishing?
Key hole saw(jab saw)
174
LCD TV
Flat panel transistorized LCD display similar to a PC computer, Best resolution and long life, Limited viewing angle, Thinner and lighter than plasma units, Use less power than plasma displays, Most expensive display per unit of size
175
A means of transporting signals from one point to another, using 22 or 24WG, 100 ohm copper wiring, typically Cat5 or Cat6 rated cabled.
Twisted Pair Cabling
176
Cable wiring which has been done while the house is being built is called?
prewiring
177
Where is usually the best place to begin planning a new install?
Basement
178
As defined by the Institute of Electrical and Electronics Engineers (IEEE) in the 802.3 and 802.11, this is the most common network type.
Ethernet Network
179
Two basic cable types used in copper-based Ethernet networks.
Straight cables and Crossover cables
180
A very common method of networking computers in a LAN (Local Area Network)
Ethernet
181
Popular technology that allows an electronic device to exchange data wirelessly.
Wi-Fi
182
The on board or add-on controllers that connect computers or devices to networks.
Network Interface Card (NIC)
183
Three different type of NIC (Network Interface Card)s:
Electrical based, fiber optic based, wireless
184
The most common type of NIC (Network Interface Card)
Electrical Based
185
Abbreviation for Megabits per second
Mbps
186
Standard 8-pin connector used to network computers, routers, printers and/or game consoles over an Ethernet connection.
RJ-45
187
In these cables, the individual pairs are twisted around each other, providing a noise cancelling effect.
Twisted Pair Cabling
188
A means of transporting signals from one point to another, using 22 or 24WG, 100 ohm copper wiring, typically Cat5 or Cat6 rated cabled.
Twisted Pair Cabling
189
Steps of the troubleshooting process:
IdentifyIsolate RepairVerify
190
What does Divide and Conquer mean?
Divide the problem in half and test each half.
191
Two types of Twisted Pair Cabling.
Shielded Twisted Pair (STP) and Unshielded Twisted Pair (UTP).
192
A unique physical address, also called a hardware address, that all devices that rely on computer network connections have (computers, cable modems, printers, game consoles, etc.)
MAC Address (Media Access Control)
193
List four "Cat" Twisted Pair Cabling standards as defined by the Electronic Industries Alliance and Telecommunications Industry Association (EIA/TIA) and their corresponding data rates.
Category 3: 10 Mbps,
Category 5: 100 & 1000 Mbps,
Category 5e: 100 & 1000 Mbps,
Category 6: 10 Gbps
194
A cable that looks like an ordinary twisted-pair cable, but with two pairs of wires crosses.
Crossover cable
195
A cable that provides the capability of directly connecting two computers without using additional equipment.
Crossover cable
196
dB
Used to express a ratio between two signal levels, Used to express passive loss and amp gain
It's a ratio between power levels
197
dBmV
Used to express and absolute signal level
| Expression of RF absolute signal strength
198
CRT Television
Large screen sets weighing up to several hundred pounds, Good resolution and color, and a wide viewing angle, Flat screen that reduces reflection
199
Rear Projection TV
Less depth and weight than a CRT TV set of the same size screen, Projection tube an d lens alignment problems can degrade the picture
200
Front Projection TV
Projector located behind viewer, Projector needs unobstructed path to screen, Large viewing area, Light source behind three LCD matrix panels, Digital Light Processing (DLP) improves picture quality
201
Plasma TV
Thin, flat screen display, Diagonal viewing areas in excess of 50 inches, Uses thousands of fluorescent lights grouped in sets of 3, Display is bright and can be viewed from a wide angle
202
This Ethernet cable type is typically used to connect the distributing equipment (switch, hub, router) to the computer
Straight Cable
203
This Ethernet cable type is named as such because one end corresponds directly with the other and the ends are identical.
Straight Cable
204
This Ethernet cable type is also known as a Patch Cable
Straight Cable
205
This Ethernet cable type is used to connect distributing devices or two computers for unaided point-to-point communication.
Crossover Cable
206
This Ethernet cable type uses the T-568A pinout on one end of the cable and the T-568B pinout on the other.
Crossover Cable
207
Five factors that affect Wireless Connectivity.
-Electromagnetic Interference-Building construction-Electronic devices in the same frequency range-Distance-Number of devices connected to the network
208
SSID
Service Set Identifier
209
A name that has been assigned to the local wireless network.
Service Set Identifier (SSID)
210
This type of network allows access to any client or user with a valid MAC address.
Open Network
211
This type of network's level of security is extremely weak since MAC addresses can be spoofed (changed) on Network Interface Cards (NIC) to enable access.
Open Network
212
A unique physical address, also called a hardware address, that all devices that rely on computer network connections have (computers, cable modems, printers, game consoles, etc.)
MAC Address (Media Access Control)
213
LED TV
Uses an array of light emitting diodes to reproduce a picture, Thin widescreen display, Large viewing angle, Extremely lightweight
214
This encryption method encrypts the network by using a pre-shared key. The key is 10-26 hexadecimal characters long.
Wired Equivalent Privacy (WEP)
215
This form of encryption was proved to be flawed in 2001 due to an inherent mathematical issue and the key can be broken in less than five minutes.
Wired Equivalent Privacy (WEP)
216
The process of converting data into a coded form (ciphertext) to prevent it from being read and understood by an unauthorized party.
Encryption
217
This encryption type was developed to replaced WEP and uses a Temporary Key Integrity Protocol (TKIP).
WPA
218
Users wishing to connect to a WPA or WPA2 protected network are required to supply a plain text password that is how many characters long?
8-63 characters
219
The network encryption type that uses Advanced Encryption Standard (AES) to secure the network.
WPA2
220
This wireless network security type is not a form of encryption; it really is an IEEE standard, which is a means of authenticating a user. This authentication system is typically found in commercial environments, and verifies the user's username and password against a server's database.
802.1x
221
Network interfaces are identified by using this unique number.
MAC Address
222
Numbers assigned to a device's NIC to identify them on a given network and are written as 12 hexadecimal digits separated by colons and dashes.
MAC Address
223
Data moving on the network requires that the sending and receiving devices have different addresses that segment a network into smaller groups. These addresses are:
Internet Protocol (IP) Addresses
224
A set of rules governing the format of messages exchanged between computers and people.
Protocol
225
A set of rules and conventions that specifically governs how computers exchange information over a network medium.
Protocol
226
The most commonly deployed network communications protocol in the world today.
IPv4
227
The newest version of the IP protocol that uses expanded features and addressing to overcome the limitations of version 4.
IPv6
228
Four types of IP Addresses:
-Private-Loopback-Automatic Private-Public
229
These types of IP addresses are select ranges of IP addresses reserved for internal network usage and cannot be used on the public Internet
Private IP Addresses
230
Which numbers define whether or not an IP address is private?
The first numbers
231
You might see these IP addresses in various applications within the customer's home.
Private IP Addresses
232
This is the IP address assigned to the device's NIC and is used to verify that the IP function is operating correctly on the device.
Loopback IP Address
233
The customer's computer does not have an IP address and cannot connect to the Internet. Which IP address could you use to confirm the network interface card is
Loopback IP Address
234
What is the exact Loopback address for IPv4?
127.0.0.1
235
What is the exact Loopback address for IPv6?
0:0:0:0:0:0:0:1
236
APIPA
Automatic Private IP Address
237
169.254.X.X andFE80:0:0:0:0:0:0:0 are examples of what type of IP addresses?
Automatic Private IP Addresses (APIPA)
238
Any numbers outside the range of private IP addresses are:
Public IP Addresses
239
These types of IP addresses are uses across the public Internet and are visible to other networks and devices.
Public IP Addresses
240
The IP address of: 205.23.124.66 is an example of what type of IP addresses?
Public IP Addresses
241
Functions of a Remote Control:
TV on and off, Change channels, Activate parental lock control, Mute sound, Scan favorite channels, Recall last channel watched, Control volume
242
Types of Remote Controls:
Dedicated, Unified, Universal, Universal Learning
243
Coaxial RF Cable (analog video/audio transmission)
Carries the video and audio components together, Transmits standard stereo, but not Dolby 5.1
244
Composite Video Signal
Uses a single signal, which is composed of brightness, color information, and synchronization pulses
245
S-video Signal
Splits the analog video signal into two separate signals:Brightness, or luminance (Y)Color, or chrominance (C)
246
Component Video Signal
Highest quality analog video signal, and acceptable for HDTV. Transmitted or stored as two or more seperate signals. Y: Contains luminance information Pb: Contains color information Pr: Contains color information
247
Component Video Cable Colors forY:Pb:Pr:
Y: Green Pb: Blue Pr: Red
248
Sony/Philips Digital Interconnect Format (SPDIF)
Carries digital audio signals, Supports Dolby Digital 5.1, 6.1, and 7.1 output (Surround Sound)
249
SPDIF coax cables can be affected by?
Signal Noise
250
SPDIF Optical Cable
Fiber optic cable, Uses light to transmit the audio information, Also supports Dolby Digital 5.1, 6.1, 7.1, 7.2, THX, and DTS
251
Digital Visual Interface (DVI)
Has a bandwidth of 3.96 single link and 7.92 dual link, Uses a single plug and connector that supports both the new digital and older VGA interfaces, Supports HDTV resolutions
252
High-Definition Multimedia Interface (HDMI)
19-pin compact audio/video interface for transmitting uncompressed digital data, A digital alternative to consumer analog standards such as RF coaxial cable, composite video, S-Video, component video, and VGA, Standard for interfacing home theater components, Uses a single plug and connector that supports both digital video and audio, Supports HDTV with a single set of links
253
IEEE 1394 (fire wire)
Used to connect digital equipment such as digital set-top boxes, music systems, or camcorders directly to a personal computer
254
Features of a Set-Top-Box
Select channelsDescramble premium channlesAccess PPV and ON DEMANDUse remote controlsSet sleep timer
255
Downstream signal levels at the input to the set-top-box
Digital signal levels: -8 to +10 dBmV per BRIS, Analog signal levels: 0 to +15 dBmV per BRIS
256
Where is a CableCARD Used?
Digital Cable-Ready (DCR) TV, Interactive Digital Cable-Ready (IDCR) TV, Multimedia Receivers (TiVo)Personal Computers
257
A DVR allows the customer to:
Easily record their favorite shows without tapes, without a VCR, of without troublesome timers, Pause live TV, view an instant replay, rewind favorite scenes, or play the show in slow motion, Record one show while watching another
258
In what three different ways can an IP address be assigned?
-Dynamic-Static-Reserved
259
Dynamic assignment of IP addresses is done through this.
Dynamic Host Configuration Protocol (DHCP) Server
260
This assigns a dynamic IP address when a device requests one.
Dynamic Host Configuration Protocol (DHCP) Server
261
A protocol for assigning IP addresses to devices on a network.
Dynamic Host Configuration Protocol (DHCP) Server
262
With this type of IP addressing, a device can have a different IP address every time it connects to the network.
Dynamic Addressing
263
This type of IP addressing simplifies network administration because the software keeps track of IP addresses rather than requiring an administrator to manage the task.
Dynamic Addressing
264
Through which type of IP addressing can a computer be added to a network without the hassle of manually assigning it a unique IP address.
Dynamic Addressing
265
Many ISPs use this type of IP addressing for dial-up users and broadband connections.
Dynamic Addressing
266
The type of IP addresses that are entered by an administrator or user and do not use the DHCP Server.
Static IP Addresses
267
The type of IP addresses that are used for devices in which the network or users depend on having the same address all of the time.
Static IP Addresses
268
Data transferred through a switch is ___-Duplex, meaning it can send and receive simultaneously.
Full-Duplex
269
IP addresses that can be reserved by the DHCP server for particular devices.
Reserved IP Addresses
270
The type of IP address that an administrator can use for a particular computer so that every time the computer request an IP address it will receive the same one.
Reserved IP Address
271
The type of IP addressing in which the DHCP server reserves the IP address for the MAC address that is associated with the device.
Reserved IP Address
272
The service that allows us to type "Comcast.com" instead of 69.241.45.20 in a web browser.
Domain Name Service (DNS)
273
The service that translates Domain Names into IP addresses.
Domain Name Service (DNS)
274
When a computer contacts a DNS server with a domain name and that DNS server does not have the IP address for the domain in its database, what happens next?
The DNS Server will submit a query to a higher level DNS Server
275
Which network equipment is used to send data between two or more networks?
Router
276
How many DNS Root Servers are there in the world?
13
277
The 13 servers that can identify and translate any existing domain name.
DNS Root Servers
278
Four types of networking equipment:
-Switch-Router-Access Point-Integrated Devices
279
A networking device that is used to connect multiple devices to a single LAN and has an internal memory.
Switch
280
A networking devices that maps a device's MAC address to the physical port.
Switch
281
A networking device that allows data to be sent only to the originating and destination ports thus providing collision detection.
Switch
282
Data transferred through a switch is ___-Duplex, meaning it can send and receive simultaneously.
Full-Duplex
283
A networking device that sends data between two or more networks and routes according to IP.
Router
284
Transmission of data in only one direction at a time.
Half-Duplex
285
This networking device is used in accordance with one or more 802.11 standards to extend a network over air through the use of radio waves.
Access Point (AP)
286
This networking device can have an internal or external antenna, is similar to a hub in that it acts like a repeater and is half-duplex.
Access Point (AP)
287
These networking devices are usually referred to as gateways or wireless routers and are mainly used in residential environments.
Integrated Devices
288
Many companies like Netgear and SMC sell devices that have a router, switch and access point merged into a single device. What are these networking devices called?
Integrated Devices
289
Which network equipment is used to send data between two or more networks?
Router
290
PACE
Provide an Awesome Customer Experience
291
Welcome Kit
Provides customers with reference information for quick and efficient resolution of inquiries and/or problems, Provides customers with a record of requested and complete work, Gives customers confidence that they are receiving services from a reputable company
292
Federal Communications Commission (FCC)
U.S. government agency established in 1934 to regulate electronic communications.The FCC succeeded the Federal Radio Commission
293
A collection of software that manages computer hardware resources and provides common services for computer programs.
Operating System (OS)
294
A type of user interface that allows users to interact with electronic devices, using images rather than text commands.
Graphical User Interface (GUI)
295
A computer interface that permits users to directly manipulate objects which are displayed on the monitor.
Graphical User Interface (GUI)
296
Initially developed by Xerox PARC in the early 60's, this was first widely deployed on Macintosh.
Graphical User Interface (GUI)
297
The two most popular operating systems that Comcast high-speed Internet is supported on.
-Windows (7, 8, 10 not in book)-Mac OS X
298
All drop cables used for RF signal distribution shall meet the minimum physical and electrical requirements of:
ANSI/SCTE 74 2003
299
RF, or Radio Frequency, is an electromagnetic signal above the _____ and below the ________ frequencies.
audio, infrared
300
Impedance Mismatch
The condition that results when two components of a system are operating at a different impedance
301
Causes of Impedance Mismatches
Crimping the cable by using the wrong size staples or cable clipsKinking the cableNot following the cable bending radiusImproperly installed F-connectors
302
Top five connector problems:
Moisture damage to connectors and cables, Center conductor too long or short, Connector not tightened properly, Braid was removed, left too long or short, Wrong connector used for cable type
303
Key stages in the installation process
Plan the route of the drop, Work at the tap, Work at the house, Bond to the electrode, Verify the signal
304
What are the five Installation Prerequisites Steps performed before installing XFINITY Internet?
1. Greet the customer 2. Have the customer perform cold boot 3. Check peripheral components 4. Close security applications 5. Check for minimum requirements
305
This refers to turning a computer/device on from a powered-down state. This also means that the power supply to the device is turned off and the device is booted up again.
Cold Boot
306
Who must always perform a Cold Boot?
The customer
307
What are the two steps taken to close security applications on a computer with a Windows OS?
1. Right click on the security application icon in the system tray. 2. Click Close or Exit
308
What are the two steps taken to close security applications on a computer with a MAC OS X?
1. Open the security application 2. Click Turn Off or Exit
309
Aerial drop routing must:
Follow the power service drop wherever possible, Maintain safe vertical clearance, Avoid cable trespass Avoid crossing swimming pools and utility lines
310
What are the six steps of the XFINITY Internet Installation Procedure?
1. Locate/Install cable outlet 2. Install cable modem 3. Check for Network Hardware 4. Connect Modem to Computer 5. Setup Network Connections 6. Activate Service
311
Adapter that allows a customer to use their electrical system as a transmission path for the home network.
Home Plug
312
What are the four steps for installing a Cable Outlet?
1. Decide where to install the cable outlet 2. Discuss the location and process with the customer; explaining the need for a cable outlet. 3. Inspect the location, both indoors and outdoors, where you will install the cable outlet. 4. Install the cable outlet.
313
A safety code written and administered by the National Fire Protection Association.
National Electrical Code (NEC)
314
The resistance of a circuit to alternating current such as cable passive devices.
Impedance
315
Although this is measured in ohms, it can't be measured with the ohm portion of a volt-ohm meter.
Impedance
316
On a customer's computer, which port is recommended to use for XFINITY Internet installation?
The Ethernet port
317
If a customer's computer does not have a free Ethernet port, what other port can you use to connect to the modem during the Installation of XFINITY Internet?
USB port
318
After connecting the modem to the computer, what is the next step during the XFINITY Internet Installation process?
Set up Network Connections
319
The first implementation of this transmission protocol was amazingly successful and it is still THE protocol of the Internet.
TCP/IP (Transmission Control Protocol/Internet Protocol)
320
This transmission protocol first saw use on the original Department of Defense Internet in 1983.
TCP/IP (Transmission Control Protocol/Internet Protocol)
321
A suite of communications protocols that allows communications between groups of dissimilar computer systems from a variety of vendors.
TCP/IP (Transmission Control Protocol/Internet Protocol)
322
While in the Set Up Network Connections step of the XFINITY Internet Installation process, what two steps are performed to set up a network connection in Windows OS?
1. Verify TCP/IP Settings 2. Turn off file and print sharing.
323
While in the Set Up Network Connections step of the XFINITY Internet Installation process, what three steps are performed to set up a network connection in Mac OS?
1. Configure the computer's Ethernet connection to the Comcast network. 2 Enable DHCP. 3. Turn off file and print sharing.
324
A protocol for assigning dynamic IP addresses to devices on a network.
DHCP (Dynamic Host Configuration Protocol)
325
You have finished setting up the network connections on the customer's computer. According to the XFINITY Internet Installation process, what is the next step to take?
Activate XFINITY Internet Service
326
Through which two ways can you activate XFINITY Internet service for your customer?
1. iPhone or laptop 2. Activation flow on the customer's computer
327
What are the three different XFINITY Internet provisioning scenarios?
1. Top-down provisioning 2. Bottom-up provisioning3. Self-provisioning
328
This is the recommended method of provisioning because it works in all scenarios and it does not leave any data records that need to be reconciled manually.
Top-down provisioning
329
This type of provisioning occurs when the customer account exists in the billing system and the modem to be installed is on the account prior to it being physically connected.
Top-down provisioning
330
This type of provisioning occurs when the customer account exists in the billing system and the modem to be installed is not on the account in the billing system.
Bottom-up provisioning
331
This type of provisioning occurs when the customer calls the call center and orders XFINITY Internet, a rate code is added to the account and the equipment is shipped to the customer for self-installation.
Self-provisioning
332
The service activation process for XFINITY Internet begins with the authentication of the customer on the ___.
Comcast Advanced Activation Platform (CAAP)
333
The activation process flow that configures the customer's account and equipment during Service Activation using the customer's computer.
Comcast Advanced Activation Platform (CAAP)
334
When referring to XFINITY Internet Customer Education Guidelines, what is the "Rule of Three"
1. Ask the customer to create a Comcast.net e-mail address and password.
2. Take the customer through the Online Welcome site.
3. Demonstrate Comcast.net benefits
335
This is the ability to share resources such as files, printers, drivers and high-speed Internet access across all computers connected within a home.
Home Networking
336
Placement of the Wireless Gateway has a great impact on how it will function in a customer's home. What are the four rules that must be following when installing the Wireless Gateway?
1. Install in a central location where client devices will most likely be used. 2. Install in an elevated location, such as a higher shelf where laptops have a line of sight view. 3. Away from interference sources 4. Away from metal objects and surfaces.
337
Provide two examples of interference sources that can impact the functionality of the Wireless Gateway.
Microwaves, 2.4Ghz cordless phones, additional wireless routers
338
A wireless adapter that connects to the outside of a laptop via a USB port.
USB Network Adapter or USB Wireless Adapter
339
This allows a customer to use their electrical system as a transmission path for the home network.
Home Plug
340
What is the default IP address you can use to login to the XFINITY Internet Wireless gateway?
10.0.0.1
341
This Advance feature in the XFINITY Internet Wireless Gateway uses Plug and Play (UPnP) to automatically configure the router and devices for various Internet applications such as gaming, media sharing and video conferencing.
Device Discovery
342
Device Discover in the XFINITY Internet Wireless Gateway uses ___ to automatically configure the router and devices for various Internet applications such as gaming, media sharing and video conferencing.
UPnP (Universal Plug and Play)
343
A command line command that displays the IP address, subnet mask, and default gateway for all adapters.
ipconfig
344
A command line command used to determine the computer's IP address and to reset the address if the computer cannon connect to the Internet.
ipconfig
345
This command line command can be used to release the current IP address of a computer.
ipconfig/release
346
This command line command can be used to get a new IP address on a computer.
ipconfig/renew
347
A utility used to determine whether a specific IP address is accessible; it sends a packet to the specified address and waits for it to reply.
Ping
348
This command line utility is used to see if the computer can successfully access a specified website.
Ping
349
A utility that traces a packet from your computer to an Internet host.
Traceroute
350
A command line utility used to show how many hops the packet requires to reach the host and how long each hop takes.
Traceroute
351
What switch is added to the ping command for continuous pinging?
-t
352
What key combination is pressed on the keyboard to stop a continuous ping?
Ctrl + C
353
How do access the Ping utility in Mac OS X?
1. Double click Macintosh HD 2. Macintosh Hard Drive>Applications>Utilities>Network Utilities 3. Click the Ping Tab 4. The URL name or IP address 5. Click Ping 6. Close the Network Utility window
354
What are the five restore/reset options in the Restore/Reset Gateway screen in a XFINITY Internet Wireless Gateway?
1. Reset 2. Reset Wi-Fi Module 3. Reset Wi-Fi Router 4. Restore Wi-Fi Settings 5. Restore Factory Settings
355
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to restart the gateway?
"Reset"
356
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to reset the Wi-Fi module only?
"Reset Wi-Fi Module"
357
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to activate the Gateway Default Settings for Wi-Fi only? This option will cause only Wi-Fi Settings to be lost.
"Restore Wi-Fi Settings"
358
In Restore/Reset Gateway screen of a XFINITY Internet Wireless Gateway, which reset option can be used to activate your Gateway Default Settings? This option will cause all previous settings to be lost.
"Restore Factory Settings"
359
Devices/product surfaces must not exceed 45 °C for _______ and 40 °C for ________?
Plastic and metal
360
List 4 features of X1
new On demand, smart search, last nine, cloud dvr, and many others that are true just not listed.
361
what system was created to better server our customers television needs?
X1 platform
362
what are the two ways the x1 platform provides and receives information?
QAM and DOCSIS
363
How big of a hard drive does the XG1 have?
500 GB
364
If a X1 box is hooked up with RF output what aspect ratio will the guide be?
4:3
365
what button on the xfinity remote gets to almost all functions?
the xfinity button
366
One thing every X1 install needs?
POE filter(MoCA filter)
367
what is the number digits to un-pair the XR2 remote?
987
368
Used in ducts, plenums, and other spaces used for environmental air
CATVP (Plenum)
369
cable shall be used in vertical shafts and from floor to floor in multistory buildings
CATVR (Riser)
370
cable shall be suitable for general purpose use with the exception of plenums and risers.
CATV (V-Rated)
371
cable can only be used in residential buildings, not business building.
CATVX (X-Rated)
372
Helping the customer to help themselves by learning more about their equipment will often provide _______
A better customer experience
373
What are the most common features on a remote control?
Changing the channels, Turning the TV on and off, Scanning through your favorite channels, Recalling the last channel you watched, Activating parental lockout control, Muting the sound Controlling volume
