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jared nationals > CT3 > Flashcards

CT3 Flashcards

1
Q

a combination of two or more computers or devices that share information and communicate through various topologies

A

Network

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2
Q

The recognition of a user as having a valid account on the system with legitimate access to its resources

A

Authentication

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3
Q

a computer that handles requests for data, e-mail, file transfers and other network services from other computers

A

Servers

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4
Q

WAN

A

Wide Area Network

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5
Q

LAN

A

Local Area Network

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6
Q

A group of computers geographically far apart, but connected

A

Wide Area Network

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7
Q

the rate at which data is transmitted or processed

A

bit rate

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8
Q

an electrical impulse representing a zero or one

A

Bit

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9
Q

the range of frequencies able to distribute telecommunications services

A

Bandwidth

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10
Q

bits in a byte

A

8

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11
Q

bits in a kilobyte

A

1024

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12
Q

bytes in a kilobyte

A

1024

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13
Q

Approximately one million bits

A

Megabit (Mb)

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14
Q

Approximately one million bytes

A

Megabyte (MB)

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15
Q

megabits in a Gigabit

A

1024

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16
Q

megabytes in a gigabyte

A

1024

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17
Q

a computer circuit board or card that is installed in a computer so that it can be connected to a network

A

Network Interface Card (NIC)

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18
Q

technology that allows electronic devices to exchange data wirelessly

A

Wifi

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19
Q

Standard 8-pin connector used to network computers, routers, printers and/or game consoles over an Ethernet connection

A

RJ-45

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20
Q

In these cables, the individual pairs are twisted around each other, to minimize induction

A

Twisted Pair Cabling

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21
Q

These are the standards for the use of radio signals over specified frequencies to transmit data

A

802.11 Standards

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22
Q

The five 802.11 Standards

A

B, A, G, N, AC

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23
Q

A unique physical address, also called a hardware address, that all devices that rely on computer network connections have

A

Media Access Control (MAC)

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24
Q

The process of converting data into a coded form to prevent it from being read and understood by an unauthorized party

A

Encryption

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25
Q

WPA

A

Wi-Fi Protected Access

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26
Q

WEP

A

Wired Equivalent Privacy

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27
Q

This authentication system is typically found in commercial environments and verifies the user’s username and password against a server’s database

A

802.1x

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28
Q

WPA2

A

Wi-Fi Protected Access version 2

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29
Q

4 Types of IP addresses

A

Private, Loopback, Automatic Private, Public

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30
Q

DNS

A

Domain Name Service

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31
Q

These 13 servers can identify and translate any existing domain name

A

Root Server

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32
Q

Transmission of data in only one direction at a time

A

Half-duplex

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33
Q

a type of user interface that allows users to interact with electronic devices, using images rather than text commands

A

Graphical User Interface (GUI)

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34
Q

Adapter that allows a customer to use their electrical system as a transmission path for the home network

A

HomePlug

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35
Q

the activation process flow, which configures the customer’s account and equipment

A

Comcast Advanced Activation Platform (CAAP)

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36
Q

the ability to share resources and high-speed Internet access across all computers connected within the home

A

Home Networking

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37
Q

WOH

A

Wi-Fi Optimized Home

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38
Q

The 5 Major Steps to a Wi-Fi Optimized Home

A
  1. Arrival and Initial Assessment, 2. Discussion with Customer, 3. Detailed Assessment, Device Placement & Installation, 4. Test and Fortify, 5. Demonstration and Customer Education
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39
Q

our wireless service platform is built around providing industry leading customer experiences in these three areas

A

Speed, Coverage, Control

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40
Q

What is the product experience web address

A

https://px.comcast.com/

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41
Q

Web address for Xfinity Speed test

A

http://speedtest.xfinity.com/

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42
Q

RSSI

A

Received Signal Strength Indicator

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43
Q

an estimated measure of power level that an RF device is receiving from an access point, router, or Gateway

A

Received Signal Strength Indicator (RSSI)

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44
Q

measurement scale for RSSI

A

-100 to 0 dBm

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45
Q

small devices that can be paired with the xFi Gateway to create a WiFi mesh network in the home

A

xFi Pods

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46
Q

Website for connecting xFi Pods to customer owned Gateway

A

www.plumewifi.com

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47
Q

maximum throughput for xFi Pods

A

200 Mbps

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48
Q

offers unlimited data, online security measures, and additional technical support to optimize Wi-Fi performance

A

xFi Complete

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49
Q

a powerful, secure in-home WiFi experience offering reliably fast speeds, wall-to-wall coverage, control via the Xfinity app, and Advanced Security

A

Xfinity xFi

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50
Q

A command line that displays the IP address, subnet mask, and default gateway for all adapters

A

Ipconfig

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51
Q

A utility to determine whether a specific IP address is accessible; it sends a packet to the specified address and waits for a reply

A

Ping

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52
Q

A utility that traces a packet from your computer to an internet host:

A

Traceroute

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53
Q

Phone number for Xfinity Prepaid internet

A

1-855-75PREPAID

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54
Q

2 refill options for Xfinity prepaid internet

A

7-day and 30-day

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55
Q

Step 1 of the Wi-Fi Optimized Home

A

Arrival and Initial Assessment

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56
Q

Step 2 of the Wi-Fi Optimized Home

A

Discussion with Customer

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57
Q

Step 3 of the Wi-Fi Optimized Home

A

Detailed Assessment, Device Placement & Installation

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58
Q

Step 4 of the Wi-Fi Optimized Home

A

Test and Fortify

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59
Q

Step 5 of the Wi-Fi Optimized Home

A

Demonstration and Customer Education

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60
Q

a digital modulation method in which the value of a symbol consisting of multiple bits is represented by amplitude and phase states of a carrier

A

Quadrature Amplitude Modulation (QAM)

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61
Q

Tuners in an XG1

A

6

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62
Q

Tuners in an XG2

A

4

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63
Q

How long can you pause an XG1

A

60 minutes

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64
Q

How long can you pause an XG2

A

25 minutes

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65
Q

How long can you pause an XiD/Xi3

A

25 minutes

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66
Q

How long can you pause an Xi5/Xi6

A

25 minutes

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67
Q

Three Phases of X1 Platform Implementation

A

Installation, Activation, Remote pairing/programming

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68
Q

eMTA

A

Embedded Multimedia Terminal Adapter

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69
Q

This notification appears when Live TV is displayed and the customer interacts with the remote control– but the Guide has not fully loaded

A

One moment please

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70
Q

the middleware software specification CableLabs has established to enable application writers to create new interactive services that will run on a broad range of advanced digital set tops and cable-ready TVs

A

tru2way fromally Open Cable Application Platform (OCAP)

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71
Q

MHP

A

Multimedia Home Platform

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72
Q

What is the capacity of the hard drive in the XG1 STB

A

500 GB

73
Q

First step of the Home Equipment Installation Process

A

Establish Customer’s Requirements

74
Q

Second step of the Home Equipment Installation Process

A

Assess Current Home Equipment Setup

75
Q

Third step of the Home Equipment Installation Process

A

Plan Installation of the Home Equipment

76
Q

Fourth step of the Home Equipment Installation Process

A

Connect, Configure, and Install the Home Equipment

77
Q

Fifth step of the Home Equipment Installation Process

A

Verify the Installation

78
Q

Sixth step of the Home Equipment Installation Process

A

Educate the Customer

79
Q

ILEC

A

Incumbent Local Exchange Carrier

80
Q

phone company which traditionally had the exclusive franchised right and responsibility to provide local dial tone

A

Incumbent Local Exchange Carrier (ILEC)

81
Q

CLEC

A

Competitive Local Exchange Carrier

82
Q

The technical relationship between Comcast and an ILEC is managed through a lengthy negotiated document is called

A

Interconnection Agreement (IA)

83
Q

At a customer’s home, the specific location for the interconnection between the ILEC and Comcast is the

A

NID

84
Q

Phone service that transmits telephone calls over a public network, such as the Internet

A

IP Telephony

85
Q

CMTS

A

Cable Modem Termination System

86
Q

A term used in IP telephony for methodologies and transmission techniques that manage the delivery of voice, using IP packets

A

Voice over Internet Protocol (VoIP)

87
Q

LRN

A

Local Routing Number

88
Q

NPAC

A

Number Portability Administration Center

89
Q

A device that allows the telephone company to route and connect customers to one another

A

Telephone Switch

90
Q

Worldwide network of public circuit-switches used by traditional, local, and long-distance companies

A

Public Switched Telephone Network (PSTN)

91
Q

A telephone line dedicated to a specific subscriber. This line sends signals through the system, based on a subscriber making and receiving calls

A

Subscriber Line

92
Q

A site where telecommunications companies physically interconnect their systems with other networks

A

Point of Presence (POP)

93
Q

DTMF

A

Dual Tone Multi-Frequency

94
Q

A condition caused when packets are not received in the correct order, or when they take too long to arrive at their destination

A

Jitter

95
Q

Delay associated with inconsistencies, or impairments, in the data transport stream

A

Latency

96
Q

The eMTA battery provides this many hours of standby time in case of power outage

A

5 to 7

97
Q

A number owned by Comcast and assigned to a customer ordering Xfinity Voice

A

Native number

98
Q

A number owned by another Local Exchange Carrier but temporarily assigned to Comcast

A

Ported number

99
Q

2 types of Silver Satin Cable

A

Straight and Crossover

100
Q

This type of silver satin cables should always be used from the Gateway to the wall jack, to prevent reverse polarity

A

Straight

101
Q

This type of silver satin cable is used to connect the telephone to the wall plate or directly to the Gateway

A

Crossover

102
Q

When a telephone is on-hook and there is a potential difference of 48 volts between the tip and ring it is known as

A

Idle or supervisory voltage

103
Q

The DC voltage present in the circuit while the telephone is off-hook

A

Talk battery

104
Q

Maximum data rate for CAT 1 wire

A

1Mbps

105
Q

Maximum data rate for CAT 3 wire

A

10Mbps

106
Q

Maximum data rate for CAT 5 wire

A

100Mbps

107
Q

Maximum data rate for CAT5e wire

A

1000Mbps

108
Q

Maximum data rate for CAT 6 wire

A

10Gbps

109
Q

Maximum length for CAT 1 wire

A

15 feet

110
Q

Maximum length for CAT 3 wire

A

150 feet

111
Q

Maximum length for CAT 5 wire

A

328 feet (100 meters)

112
Q

Maximum length for CAT5e wire

A

328 feet (100 meters)

113
Q

Maximum length for CAT 6 wire

A

328 feet (100 meters)

114
Q

A telephone uses which two modular connectors

A

2-position and 6-position

115
Q

The “ring to answer” setting on a customers fax machine should be set to this if they want to receive a fax

A

less than the number of rings required to trigger voicemail

116
Q

A fax machine should always be connected in this kind of configuration

A

Y configuration

117
Q

If a customer would like to have a Dedicated Fax Machine they will need a

A

second telephone number

118
Q

This isolates the alarm panel from the Gateway in the telephone circuit

A

RJ31X jack

119
Q

This process allows an alarm panel to control access to active phone pairs, and seize those pairs even if the customer is using the telephone

A

Line seizure

120
Q

lets you connect compatible devices to the Xfinity Home platform and interact with the smart devices you use every day

A

Works with Xfinity Home

121
Q

Allows a customer to create three-party conference calls

A

3-way Calling

122
Q

What number does a customer enter to use Enhanced Voicemail

A

*99

123
Q

Allows a customer to create a list of people whose calls will be forwarded to a number they designate

A

Call Forwarding Selective

124
Q

Allows customers to forward incoming calls when away from home

A

Call Forwarding Variable

125
Q

Automatically rejects calls from Caller-ID-blocked numbers

A

Anonymous Call Rejection

126
Q

Ensures that the number of the last incoming caller is traced so that appropriate action may be taken against a harassing party

A

Call Trace

127
Q

Allows customers to call their eight most important people by pressing just one digit

A

Speed Dial 8

128
Q

Redials a busy number until the line is available

A

Repeat Dialing

129
Q

Connects a customer to 30 phone numbers by pressing two digits

A

Speed Dial 30

130
Q

Ensures the customer’s name and number are marked “private” or “anonymous”

A

Caller ID Blocking

131
Q

Allows a customer to take a second call without disconnecting the first

A

Call Waiting

132
Q

Lets a customer know who is on the line before answering the call

A

Caller ID

133
Q

Tells a customer the number of the last incoming call and allows automatic return call

A

Last Call Return

134
Q

What number does a customer enter to use Last Call Return

A

*69

135
Q

Allows a customer to create a list of up to 12 callers who are notified that the customer does not want to receive their calls

A

Call Screening

136
Q

What are the two types of call forwarding

A

Selective and Variable

137
Q

List the 4 steps of the Troubleshooting Process

A

Identify, Isolate, Repair, Verify

138
Q

REN

A

Ringer Equivalence Number

139
Q

The total REN value in an individual circuit should not be greater than

A

5

140
Q

What are the 5 types of TV displays?

A

Cathode Ray Tube (CRT), Rear Projection, Front Projection, Plasma, and Liquid Crystal Display (LCD)

141
Q

CRT

A

Cathode Ray Tube

142
Q

In this type of TV display, internal projection tube and lens alignment problems can degrade the picture

A

Rear Projection TV

143
Q

This type of TV display uses a light source behind three LCD matrix panels

A

Front Projection TV

144
Q

What technology do Front Projection TVs use to improve picture quality?

A

Digital Light Processing (DLP)

145
Q

This type of TV display uses thousands of florescent lights grouped in sets of three or four that comprise pixels

A

Plasma TV

146
Q

LCD

A

Liquid Crystal Display

147
Q

This type of TV display uses backlighting behind crystals, which block or pass light to create images

A

Liquid Crystal Display (LCD)

148
Q

LED

A

Light Emitting Diode

149
Q

Most televisions after 2014 use what technology to provide clearer pictures

A

LED Backlighing

150
Q

LED backlighting can result in TV sets with screens as thin as this amount:

A

0.3 inches

151
Q

Which type of TV has a large screen and can weigh up to several hundred pounds?

A

Cathode Ray Tube (CRT)

152
Q

Which type of TV has the best resolution and a long life span?

A

Liquid Crystal Display (LCD)

153
Q

What are the 4 types of remote controls?

A

Dedicated, Unified, Universal, Univeral Learning

154
Q

This type of remote operates only the equipment it comes with:

A

Dedicated Remote

155
Q

This type of remote operates the equipment it comes with plus another device of the same brand:

A

Unified Remote

156
Q

This type of remote supports devices from different manufacturers:

A

Universal Remote

157
Q

This type of remote is programmable to function as a dedicated remote for the device:

A

Universal Learning

158
Q

This was the first remote to utilize an xfinity button as the path to the main menu

A

XR2 remote

159
Q

This was the first xfinity remote to integrate voice control:

A

XR11 Remote

160
Q

This was the first xfinity remote to not use a “setup” button

A

XR15

161
Q

If the light blinks red when trying to use the voice command, the remote is in this mode:

A

Infared (IR) mode

162
Q

This type of cable carries standard definition video and audio components together

A

Coaxial Cable

163
Q

This type of cable uses one connection for video, and 2 connections for audio

A

Composite Cable

164
Q

A composite video signal is comprised of these three things:

A

Brightness, Color Information, and Sychronization pulses

165
Q

This type of cable carries the two video signals on a single cable, with a 4-pin or 7-pin mini-DIN connector

A

S-Video Cable

166
Q

This type of cable uses 3 connections for video and 2 connections for audio

A

Component Cable

167
Q

Component Red:

A

Phase Shift Red (Pr) - Chrominance

168
Q

Component Green:

A

Phase Shift Y - Luminance

169
Q

Component Blue:

A

Phase Shift Blue (Pb) - Chrominance

170
Q

This type of cable is a 19-pin compact audio/video interface for transmitting uncompressed digital data:

A

High Definition Multimedia Interface (HDMI) Cable

171
Q

HDMI

A

High Definition Multimedia Interface (HDMI) Cable

172
Q

This HDMI version adds a maximum format support of 10k @120Hz, ulta high speed (48Gbit/s), and expanded support for HDR content:

A

HDMI 2.1

173
Q

In a standard RCA stereo cable, which color is used for left, and which color is used for right?

A

White for Left, and Red for Right

174
Q

This type of audio cable supports Dolby Digital 5.1, 6.1, and 7.1 output:

A

Sony/Philips Digital Interconnect Format (SPDIF)

175
Q

SPDIF

A

Sony/Philips Digital Interconnect Format

176
Q

This type of audio cable supports Dolby Digital 5.1, 6.1, and 7.1, 7.2, THX, and DTS output:

A

SPDIF Optical Cable

177
Q

A device provided by comcast that plugs into a digital cable-ready TV and permits reception of encrypted services

A

CableCARD

178
Q

DVR

A

Digital Video Recorder

179
Q

A device that records programming digitally on a large hard drive

A

Digital Video Recorder (DVR)

jared nationals (14 decks)

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