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2018 MM > CT4/5 Inkling(IS 2018) > Flashcards

CT4/5 Inkling(IS 2018) Flashcards

1
Q

what is the address for the Comcast Business Gateway Login?

A

http://10.1.10.1

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2
Q

Connects to the combiner in the filter for local insertion of subscription channel

A

DCT

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3
Q

What troubleshooting utility can you use in order to determine the computer’s IP address, and to reset the address if the computer cannot connect to the Internet?

A

IPConfig

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4
Q

What number should a customer dial to get the latest traffic information?

A

511

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5
Q

How long must leakage logs be kept on file?

A

2 years Per FCC, Comcast keeps 5 years

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6
Q

This inspects the master boot record, program files, and macro code for the presence of viruses.

A

Antivirus software

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7
Q

This is the protection of content by requiring certain criteria to be met before granting access to this content.

A

CA or Conditional Access

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8
Q

These are low value taps that feed the internal splitter(s) directly without the use of a directional coupler

A

Terminating tap

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9
Q

A portion of a network that shares a common address component..

A

Subnet

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10
Q

What is the customer default username for on the Comcast Business Gateway?

A

cusadmin

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11
Q

A process that diverts a portion of the multiplexed aggregate signal at an intermediate point, and introduces a different signal for subsequent transmission in the same position.

A

Drop and Insert

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12
Q

This is the medium that is used to transmit our signals from the headend to the customer.

A

coaxial cable

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13
Q

This address (the highest in value)- identifies all hosts/devices on the LAN.

A

Broadcast IP

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14
Q

This is displayed as a ratio of the number of errors to correct data bits and is given in scientific notation

A

Bit Error Rate (BER)

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15
Q

The Large Plug on an 8 line eMTA that connects to the power supply.

A

Telemetry

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16
Q

What is the wiring pattern for a 66 Block- Telco standard connecting block?

A

a. Lines in from the left and out to the right
b. lead with “Tip” at the top
c. Alternate “Tip” and “Ring”
d. Leave 1-3 feet of excess wire around block

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17
Q

5 steps to minimize anxiety

A
  1. Remember that the audience is your friend2. Memorize the most important parts of what you’ll say3. Practice positive self-talk4. Breath5.Check Your appearance
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18
Q

A utility to determine whether aspecific IP address is accessible. Itsends a packet to the specifiedaddress and waits for a reply.

A

Ping

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19
Q

(the lowest in value) this IP address encompasses the entire subnetwork.

A

Network IP

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20
Q

What is occurring when all theFront Panel LEDs are flashing?

A

Foreign voltage present on oneor more lines (or self-testwhen starting up)

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21
Q

What wireless adapter is credit-card sized wireless adapter that slides into the side of a laptop or desktop?

A

PC (PCMCIA) Card

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22
Q

Internet streaming, video on cell phones and interactive tv are examples of what MPEG application?

A

MPEG-4

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23
Q

Comcast Business Voice provided this for users of the Telecommunications Relay Service (TRS) center for the hearing impaired.

A

711 abbreviated dialing

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24
Q

A protocol used on the Internet for exchanging files

A

FTP

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25
Q

This is a measure of signal strength relative to background noise in analog and digital communications.q

A

Signal-to-noise ratio

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26
Q

What website would a business class customer go to, to Manage their business WiFi hotspot directory information?

A

business.comcast.com/myaccount

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27
Q

This enables a LAN to use one set of IP addresses for internal traffic and a second set of addresses for external traffic, and provides a type of firewall by hiding internal IP addresses.

A

(NAT) Network Address Translation

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28
Q

It’s used to avoid kinks and sharp bends on telecom equipment boards

A

Mushroom Spool

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29
Q

MSO

A

Multi system Operator

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30
Q

“A managed hard drive connected toa LAN that can be accessible by anyoneon the Internet as defined by a company’sNetwork Administrator.

A

Network Attached Storage (NAS)

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31
Q

10.0.0.0 is an example of a _______ address.

A

Private IP

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32
Q

This is used to divert a specific amount of signal from the feeder system and distribute it to 2, 4, or 8 output ports for connection of customer drops.

A

Tap

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33
Q

1.Allows a group of phone stations to access a common set of phone lines. 2.Fewer business lines can be purchased. 3.Additional built in features such as music on hold and call transfer

A

What are benefits of a Key System (PBX)

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34
Q

For normal CATV modulation modes, the nominal acceptable C/N for reliable operation for 16QAM is

A

20dB

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35
Q

Name 3 of the 5 traits of Auditory Learners

A
  1. Learn by listening2. Prefer discussion groups3. Pay close attention to voice4. Like information to be read aloud5. Like to ask questions and paraphrase
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36
Q

Loads baseband signal onto standard video channel carrier. Can eliminate the need for multiple DCT’s.

A

Video Modulator

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37
Q

Device that connects the customer’sinternal network to the Internet. Wirelesscapability may be denoted by antennae on the device

A

Router

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38
Q

In its simplest form, it is an electronic message sent from one device to another.

A

E-mail

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39
Q

What is the major advantage of MPEG compared to other codecs?

A

The MPEG files are much smaller for the same quality

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40
Q

At what interval is CLI monitored?

A

Quarterly

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41
Q

This is a variant of spyware that displays advertising for products it thinks might interest you, based on the website you are browsing.

A

Adware

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42
Q

PBX

A

Private Branch Exchange

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43
Q

The Six Key Techniques to Selling

A
  1. Build rapport2. Ask questions3. Listen4. Position the product5. Communicate the benefits6. Ask for the sale
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44
Q

a system of computers,peripherals, terminals, and databases connected by communications lines

A

Network

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45
Q

A MPEG video is a sequence of what three kinds of encoded pictures?

A

I pictures, P pictures, and B pictures

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46
Q

It is the concept of partitioning large networks into smaller segments.

A

Subnetworking, or subnetting

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47
Q

This is the cidr for customers with five Static IPs

A

/29

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48
Q

A method where additional data bits are added to the digital video bit stream to help identify and correct any errors that may be caused by the transmission system

A

Forward Error Correction (FEC)

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49
Q

At what point in the installation process can a customer register an account online?

A

As soon as installation is scheduled.

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50
Q

This appears when ingress allows a locally broadcast TV channel’s signal to enter the TV along with the channel’s signal supplied by the network.

A

leading ghost

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51
Q

What is the Demarcation point for Business Class Voice?

A

the 66 Block and/or the telephone jack on the eMTA to which the Customer’s telephone network is connected

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52
Q

Device that acts as a focal point inconnecting multiple computers within oneLocal Area Network (LAN).

A

Switch

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53
Q

This is the cidr for customers with 1 Static IP

A

/30

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54
Q

For assistance with non-emergency concerns or questions, Comcast Business Voice provides what service? (where available)

A

311 service

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55
Q

Planning Assistance “call before you dig” number

A

811

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56
Q

What is the most common cause of signal leakage?

A

poorly installed F-connectors in the drop

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57
Q

A technique by which several hosts or computers share a single IP address for access to the Internet.

A

(NAT) Network Address Translation

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58
Q

It uses internal modem to transmit sales transaction data using telephone lines.

A

P.o.S. (Point of Sale System)

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59
Q

Directory Assistance number

A

411

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60
Q

software/hardware used to preventunauthorized access from a computer system or network ofcomputer systems

A

Firewall

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61
Q

The /28 subnet mask is

A

255.255.255.240

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62
Q

It deletes unused channel and inserts local feed for subscription channel or other video feed such as cameras or promotional video loop/

A

Channel Deletion Filter and Combiner

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63
Q

What 2 ways can a CLI test be performed?

A

ground based or an aerial “flyover”

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64
Q

Four components of coaxial cable

A

Jacket, Outer Conductor (Sheath), Dielectric, and Center Conductor

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65
Q

A unique number for each computer on a given network

A

IP Address

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66
Q

the IP address that the gateway uses toforward all traffic that is not addressed to a client within Comcast’s network.

A

Default Gateway

67
Q

A term used to describe a range of malicious software example is external code that changes your browser’s settings.

A

Hijacking

68
Q

A mathematical value derived from the number and severity of leaks in the cable system.

A

Cumulative Leakage Index (CLI)

69
Q

On TCP/IP networks, they are defined as all devices whose IP addresses have the same prefix

A

subnets

70
Q

Name 3 of the 5 traits of Visual Learners

A
  1. Learn through seeing2. Prefer to see the person speaking to them3. Think in pictures4. Like demonstrations and examples5. Take detailed notes
71
Q

Customers can automatically distribute incoming calls to two or more extensions using which call feature?

A

Hunt Groups

72
Q

This feature is commonly used forgaming and videoconferencing –applications that will not functionthrough NAT.

A

DMZ (demilitarized zone)

73
Q

For normal CATV modulation modes, the nominal acceptable C/N for reliable operation for 64QAM is

A

31dB

74
Q

Provides the ability to dynamically open a specific inboundport based on a request from a local computer or user.

A

Port Triggering

75
Q

This type of IP address is visible to the public

A

routable

76
Q

Similar to NAT, but a more specific tool. It forwards requests for a particular IP port pair to another IP port pair

A

(PAT) Port Address Translation

77
Q

In BCDV, it’s the interface between the eMTA and the 66/110 block demarc point

A

RJ-21X

78
Q

A temporary IP address is also called a(n) _________ IP address.

A

dynamic

79
Q

This IP address is used on customer’s equipment.

A

Routable IP

80
Q

What is the best way to prevent a hacker from accessing a customer’s system?

A

A hardware firewall

81
Q

Digital QAM signals carry 2 signals that are referred to as what?

A

I and Q components

82
Q

A group of computersgeographically far apart, but areconnected.

A

WAN

83
Q

Uses a public network, such as the internet, to establish a secure connection to an organization’s private network

A

VPN

84
Q

If Tel 7 is flashing slowly on an 8 line eMTA, about 1 flash per second, what does that indicate?

A

Line card Error

85
Q

This appears as a horizontal bar moving from the bottom to the top of the picture

A

Hum Modulation

86
Q

What phone number can customers call with 911 related questions?

A

800-391-3000

87
Q

DPC3939B or DPC3941B

A

Model Number for the Business Wireless Gateway

88
Q

This feature is commonly used on publicly connected hosts to make an internal service available to a larger network.

A

(PAT) Port Address Translation

89
Q

What is the measurement of how consistent the signal response is from the beginning to the end of the channel space?

A

ICFR

90
Q

DTCP

A

Digital Transmission Content Protection

91
Q

Being able to carry and individually select different channels on a single cable by their unique frequency is called….

A

frequency division multiplexing (FDM)

92
Q

What is the MTTR for Business Class Voice customers?

A

4 hours

93
Q

This prevents or distorts copies made over an analog connection between a source player and a DVD recorder, DVR, PC or VCR

A

ACP (Analog Copying and Piracy)

94
Q

What is the technician default username on the Comcast Business Gateway?

A

mso

95
Q

This device passes high frequencies well, but attenuates (or reduces) frequencies lower than the cut-off frequency..

A

High Pass Filter

96
Q

Internet service that locates and translates domain names into IP addresses

A

DNS

97
Q

Defined as a condition where interfering signals leak into a cable network.

A

Ingress

98
Q

Good eye control serves what 2 purposes?

A
  1. It tells the listener something about you2. It allows you to learn something about the listener
99
Q

Look at this IP address. 150.215.017.009What do the first two numbers (150.215) represent?

A

They define the network

100
Q

allows you to direct inbound Internet traffic to connect to a specific application or computer within a private LAN via a predefined port

A

Port Forwarding

101
Q

An IP address that does not change.

A

static IP address

102
Q

How many IP Addresses does a /28 Subnet use?

A

16

103
Q

What tool can locate impedance mismatches or microreflections on the network by using adaptive equalization and complex math?

A

Scout Flux

104
Q

Look at this IP address. 150.215.017.009What do the last two numbers (017.009) represent?

A

They define a device or a particular host on the network

105
Q

A descriptive name for an address or group of addresses on the internet

A

Domain Name

106
Q

How often does a cable modem communicate system information to the CMTS?

A

Every 20 seconds

107
Q

Video CDs are an example of what type of MPEG application?

A

MPEG-1

108
Q

Similar to a 66 block, but provides less interference and is also certified fordata networks

A

110 Punch Down Connecting Block

109
Q

A location for passing data in and out of your computer

A

port

110
Q

What are the four components of the human voice?

A
  1. Rate2. Volume3. Force4. Pitch
111
Q

Enables you to restrict specific local hosts fromaccessing particular Internet applications

A

Port Blocking

112
Q

Equipment from a Telephone Company, providing internet access to the customer

A

DSL Modem

113
Q

An easy-to-remember number that connects you to community services like after-school programs, health services, food banks and other essential human services.

A

211

114
Q

This is a digital modulation scheme that allows 2 channels of information to be transmitted at the same time on a particular frequency by changing the phase and amplitude.`

A

Quadrature Amplitude Modulation (QAM)

115
Q

What is the color sequence for the Telemetry Plug on an 8 line eMTA?

A

White-Brown-Blue-Orange-Green

116
Q

How many ports are represented on a hexagonal tap symbol.

A

8

117
Q

This type of firewall rule uses a server that examines all data based on the filtering rules and only forwards packets that obey the rules

A

Proxy

118
Q

It defines a cryptographic protocol for protecting audio/video entertainment content from illegal copying, intercepting and tampering.

A

DTCP

119
Q

Which Business Class Internet optional feature allows customers to operate VPN or Web and E-Mail servers without the fear of interruption?

A

Static IP Addresses

120
Q

This type of firewall rule compares key parts of each packet to a database of known safe data.

A

Stateful packet Inspection

121
Q

What calling feature allows different phone numbers to reach the same phone line with different ring patterns?

A

Distinctive Ring

122
Q

The /29 Subnet uses how many IP addresses?

A

8

123
Q

Where can customers go to learn about the Comcast Business Promise?

A

business.comcast.com/promise

124
Q

It works by separating successive pictures into two types of video information- that which stays the same from picture to picture, and that which changes from picture to picture

A

Digital compression

125
Q

What is the limit for ingress between 5 and 42 MHz?

A

-30 dBmV

126
Q

This is the LEC network interfacethat supplies 1.544Mb/Sec symmetricaldata throughput.

A

T1

127
Q

It can be defined as sending unsolicited bulk email.

A

spamming

128
Q

It’s Output is 48 VDC,50 Watts,It has 18 Hour Backup with TM508 Idle,and 8 Hour Backup with all 8 lines in use.

A

local power supply unit

129
Q

the ratio of the error power to the average power in an ideal QAM signal

A

Modulation Error Ratio (MER)

130
Q

A utility that traces a packet fromyour computer to an Internet host,showing how many hops the packetrequires to reach the host and howlong each hop takes

A

Traceroute

131
Q

How many IP addresses are in a /30 subnet mask?

A

4

132
Q

DVD and CATV are examples of what type of MPEG application?

A

MPEG-2

133
Q

What is the demarcation point for Commercial Video?

A

Tap (if there is a tap in a communications room)Groundblock (if there’s only a ground block at the site.)

134
Q

In regard to Comcast Business Voice, a serviceability check will consist of what two components?

A
  1. Serviceability of the location2. E911 serviceability
135
Q

A geographically close set of computers connected on a single network and using the same communication device

A

LAN

136
Q

This device enables operators to deliver 8 lines of telephony, tiered data and other advanced Internet Protocol services

A

eMTA

137
Q

This allows users to privately share information over public communication

A

VPN / Virtual Private Network

138
Q

The /29 subnet mask is

A

255.255.255.248

139
Q

A device or software that enables compression and or decompression for digital video

A

video codec

140
Q

This is usually caused by a reflection on the cable system caused by poor directivity at the tap or device feeding the set.

A

following ghost

141
Q

Name 3 of the 5 Traits of Tactile Learners

A
  1. Learn by moving, doing and touching2. Prefer a hands-on approach3. Like to experiment4. Can become easily distracted5. Like to experience new things for themselves
142
Q

This is the cidr for customers with 13 Static IPs

A

/28

143
Q

What are the two types of distortion?

A

Linear and Non-Linear

144
Q

What information does Enhanced 911 provide?

A

The telephone number and location

145
Q

TTS

A

Trouble Ticketing System

146
Q

For normal CATV modulation modes, the nominal acceptable C/N for reliable operation for 256QAM is

A

38dB

147
Q

For normal CATV modulation modes, the nominal acceptable C/N for reliable operation for QPSK is

A

12dB

148
Q

This type of firewall rule examines each packet and if the origination address of the data is on a list of banned Internet locations, the firewall blocks it.

A

Packet Filtering

149
Q

TRS

A

Telecommunications Relay Service

150
Q

How do you know if one of the telephone lines is off the hook?

A

The LED of the telephone line is flashing

151
Q

ATS

A

Advanced Technical Services

152
Q

The customer must have a Comcast issued IP Gateway to receive this type of IP address

A

static

153
Q

These are an undesired change in the waveform of a signal.

A

Distortions

154
Q

Internet Phone services transmit phone calls over a

A

public network

155
Q

How many ports are represented on a circular tap symbol?

A

2

156
Q

How often is a CLI test performed?

A

Annually

157
Q

FCC regulations requires a CLI figure of merit of what number?

A

64 or less

158
Q

How many ports are represented on a square tap symbol?

A

4

159
Q

What is the name of Comcast’s Paperless Billing?

A

Ecobill

160
Q

What is the model number of the Business Wireless Gateway?

A

DPC3939B or DPC3941B

161
Q

This allows a selected computer tobypass the firewall features of thegateway and permits unrestrictedaccess from the Internet to thatcomputer

A

DMZ (demilitarized zone)

162
Q

The /30 subnet mask is

A

255.255.255.252

163
Q

A phase modulation algorithm that is a digital modulation scheme wherein the carrier is shifted in 90-degree steps

A

Quadrature Phase Shift Keying (QPSK)

164
Q

ACP

A

Analog Copying and Piracy

2018 MM (59 decks)

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