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CommTech Jeopardy > 2017CTJ CT3 Questions > Flashcards

2017CTJ CT3 Questions Flashcards

1
Q

AM radio frequency band

A

535 kHz to 1.7 MHz

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2
Q

FM radio frequency band

A

88-108 MHz

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3
Q

Short wave radio Frequency band

A

5.9 to26.1 MHz

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4
Q

Garage door opener frequency

A

About 40 MHz

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5
Q

Radio controlled airplane frequency

A

About 72 MHz

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6
Q

Law Enforcement and Fire Rescue Frequency Band

A

150-155 MHz

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7
Q

Air Traffic Control Radar Frequency Band

A

960-1215 MHz

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8
Q

LTE FDD Frequency Bands

A

700, 800, 1700, 1900 MHz

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9
Q

Wi-Fi- Frequency Bands

A

2.4 and 5.0 GHz

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10
Q

At which Temperature is cable attenuation calculated?

A

68 degrees F

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11
Q

A passive signal splitter with minimal loss between input and output ports, specified loss between input and tap ports, and very high loss between output and tap ports

A

Directional Coupler

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12
Q

How Much signal would you need to gain/lose in order to double/half your signal strength?

A

3dB

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13
Q

FDM

A

Frequency Division Multiplexing

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14
Q

When multiple carriers oscillating at different frequencies are transported simultaneously in the same medium it is called what?

A

Frequency Division Multiplexing

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15
Q

FCC part 76.614 states any leakage source exeeding _____ at a distance of _____in the aeronautical radio frequency bands shall be noted and repaired in a reasonable time

A

20 uV/m 3

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16
Q

Comcast stanards state _____ is the maximum amount of signal leakage allowed at a customers premsie

A

10 uV/m

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17
Q

DVR

A

Digital Video Recorder

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18
Q

A suite of applications that enables customers to enjoy their Comcast services on as many platforms as possible

A

Converged Products

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19
Q

Industry lead lead ny over 200 broadcasters, manufacturers, network operators etc. committed to design open technical standards for the delivery of digital tv

A

DVB Project

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20
Q

Type of CableCARD that can only support one way services

A

Single stream or S-Cards

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21
Q

Type of CableCARD that supports two way communication, allowing the use of premium channels (although ondemand and pay-per-view will still not be accessible)

A

Multi-Stream or M-Card

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22
Q

DTA

A

Digital Transport Adapter

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23
Q

DTA model which provides High Definition and will work on both the Cisco and Motorola plant

A

HD-uDTA

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24
Q

Three main components of a Home Theater System

A

Audio, Video, Environment

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25
Q

Latent or out of sync audio is often called what?

A

Lip Sync

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26
Q

Single channel reproduction using only one speaker

A

Mono

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27
Q

Has two discrete channels and is mixed so that some sounds go to the left speaker and other go to the right

A

Stereo

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28
Q

This has multiple discrete audio channels that feed multiple speakers in order to surround the listener in sound

A

Surround Sound

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29
Q

Certification program for home theater equipment

A

THX

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30
Q

THX

A

Either Tom Holman’s eXperiment or named after George Lucas’s first movie THX 1138

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31
Q

Key elements of a surround sound system are

A

Preamplifier, Power Amplifier, Surround Sound Processor, Audio/Video Receiver

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32
Q

S-Video

A

Separated Video

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33
Q

SAP

A

Second Audio Program

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34
Q

Two fundamental stanards used to assess an HDTV system

A

Aspect Ratio and Scan Rates

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35
Q

Academy Aspect ratio

A

4;3

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36
Q

HDTV Aspect ratio

A

16;9

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37
Q

VistaVision (animated and European movies) Aspect ratio

A

1.66;1

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38
Q

VistaVision or Academy Flat (Most American Movies) Aspect ratio

A

1.85;1

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39
Q

CinemaScope (Epic Movies such as Star Wars) Aspect ratio

A

2.35;1

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40
Q

PanaVision (Ultra-widscreen format such as How the West was Won) Aspect Ratio

A

2.6;1

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41
Q

Ultra Panavision (Ultra-widescreen format such as Ben Hur) Aspect Ratio

A

2.76;1

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42
Q

Short for Picture Element

A

Pixel

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43
Q

Tiny dots that convey light and combine to form a video picture

A

Pixel

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44
Q

LCD

A

Liquid Crystal Display

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45
Q

The speed at which single unique pictures are displayed in seconds on a screen

A

Frame Rate

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46
Q

Visible fading of luminance between scan cycles on video displays

A

Flicker

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47
Q

EDTV

A

Enhanced Definition TeleVision (480p instead of 480i as in SDTV)

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48
Q

DLP

A

Digital Light Processing

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49
Q

LED

A

Light Emitting Diode

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50
Q

This type of TV employes a stereoscopic image technology, this gives the perception of a 3-D image

A

3D TV

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51
Q

The point at which the communication company’s network ends and connects with the customers network

A

Demarcation Point

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52
Q

A problem most often described as a humming sound in the audio (rarely affects picture or display quality), generally cause by a 60 cycle AC component in the audio connection

A

Ground Loop

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53
Q

CPD

A

Common Path Distortion

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54
Q

A return path impairment characterized by a significant rise in the noise floor

A

CPD

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55
Q

Electromotive force that causes electrons to flow in a circuit

A

Voltage ?

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56
Q

The flow of electrons through a conductor measured in amperes and is determined by how many electrons pass a given point in one second

A

Current (I)

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57
Q

The opposition a material offers to the flow of electrical current

A

Resistance ?

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58
Q

What is Ohms Law?

A

Voltage=Current X Resistance or E=I X R

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59
Q

NAS

A

Network Attached Storage

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60
Q

A dedicated hard disk storage device that is setup with its own network address and provide file based storage to other devices on the network

A

NAS

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61
Q

A non-profit collaborative trade organization that defines a standard for moving digital media from one device to another in a home network

A

DLNA (Digital Living Network Alliance)

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62
Q

DLNA

A

Digital Living Network Alliance

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63
Q

A set of protocols that enable networked devices to automatically discover each other’s presence

A

Universal Plug and Play

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64
Q

UPnP

A

Universal Plug and Play

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65
Q

QoS

A

Quality of Service

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66
Q

DQoS

A

Dynamic Quality of Service

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67
Q

With this service voice packets are given priority over other types of data traveling within the Comcast network

A

DQoS

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68
Q

What is ther correct amount of supervisory voltage?

A

42-48 VDC

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69
Q

What is the correct voltage of talk battery?

A

3-9 VDC

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70
Q

What is the correct amount of Ring Voltage?

A

60-90 VAC

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71
Q

What is the loop current on our Arris modem?

A

23-40 ma

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72
Q

When a telephone is on-hook, there is a potential difference of 48 volts (0VDC tip and -48VDC ring) between the tip and ring. This is called what?

A

Supervisory voltage

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73
Q

The DC voltage present in the circuit while the phone is off-hook is called what?

A

Talk Battery

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74
Q

This type of voltage in a phone system has a frequency of 20 Hz and follows a 2-4 pattern in North America for its standard ring cycle

A

Ring Voltage

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75
Q

Customers wishing to use old rotary dial telephones must request what capability be added to their XFINITY Voice account?

A

Pulse Dialing

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76
Q

How many hours of standby time does our eMTA battery provide?

A

Up to 8 hours

77
Q

The maximum length of a silver satin cable should not exceed what length?

A

15 feet

78
Q

what modular connector is used from a hamdset to a telephone? (no RJ designation)

A

4P4C

79
Q

What modular connector is used from a telephone to a wall jack?

A

6P4C or RJ-14

80
Q

What modular connector goes from a telephone to a wall jack when used with a fax machine?

A

6P2C or RJ-11

81
Q

What is another name for a UR2 or a UR3 connector?

A

Scotchlok (UR2 for 2 wires and UR3 for 3 wires)

82
Q

Keenness and depth of perception, discernment, or discrimination especially in practical matters

A

Acumen

83
Q

The ability to make good judgements and quick decisions, typically in a particular domain

A

Business Acumen

84
Q

What is the Comcast Credo?

A

We will deliver a superior experience to our customers every day. Our products will be the best and we will offer the most customer-friendly and reliable service in the market

85
Q

Who were the founders of Comcast?

A

Ralph J. Roberts, Daniel Aaron and Julian Brodsky

86
Q

What are Comcast’s seven core values?

A
  1. Quality 2. Flexibility 3. Ethics 4.Employee Focus 5. Enthusiasm 6. Diversity 7. Respect
87
Q

SLA

A

Service Level Agreement

88
Q

What are the two viewing types of Comcast’s Business TV services?

A

Private and Public

89
Q

What are the three major music licensing organizations which provide the rights for businesses to play licensed recordings?

A
  1. ASCAP 2. BMI 3. SESAC
90
Q

Following the operational metrics for business class troubleshooting calls how long should each call last?

A

15 minutes (12 for call and 3 for wrap up)

91
Q

Following the operational metrics for business class troubleshooting calls how many calls should be resolved with the first call?

A

90%

92
Q

Following the operational metrics for business class troubleshooting how long do we have to respond to 100% of e-mails received?

A

12 hours

93
Q

POS

A

Point of Sale

94
Q

ENS

A

Ethernet Network Service (In reference to Comcast’s Metro-E)

95
Q

MAN

A

Metropolitan Area Network

96
Q

Enables customers to connect physically distributed locations across a Metropolitan Area Network as if they were all on the same LAN

A

ENS or Metro-E

97
Q

NAT

A

Network Address Translation

98
Q

This is a process of modifying IP address info in IPv4 headers, allowing multiple hosts on a private network to access the internet while using a single public IP address

A

NAT

99
Q

When you disable the network functionality of a router it is said to be in_____

A

Bridge Mode

100
Q

when was DOCSIS 1.0 issued?

A

March of 1997

101
Q

When was DOCSIS 1.1 issued?

A

April of 1999

102
Q

When was DOCSIS 2.0 released?

A

December of 2001

103
Q

When was DOCSIS 3.0 released?

A

August of 2006

104
Q

QPSK

A

Quadrature Phase Shit Keying

105
Q

SCDMA

A

Synchronous Code Division Multiple Access

106
Q

If a modem does not communicate with the CMTS for 12 seconds what happens?

A

A T2 Timeout occurs

107
Q

If a modem does not have its ranging request answered by the CMTS within 200 milliseconds what happens?

A

A T3 Timeout occurs

108
Q

If a modem does not receive a Keep Alive request from the CMTS aftter 30 seconds what happens?

A

A T4 Timeout occurs

109
Q

AET

A

Adaptive Equalization Technology

110
Q

Used in data transmission to compensate for certain in-channel impairments that degrade the quality of digital signals

A

Adaptive Equalization Technology

111
Q

3GPP

A

3rd generation partnership project

112
Q

AC

A

Alternating current

113
Q

ADS

A

All Digital Simulcast

114
Q

A/O

A

Additional Outlet

115
Q

AP

A

Access Point

116
Q

ASC

A

Advanced Services Center

117
Q

A/V

A

Audiovisual

118
Q

BD

A

Blu-Ray Disc

119
Q

bps

A

bits per second

120
Q

BRIS

A

Broadband Residential Services Installation Standard

121
Q

CA

A

Certification Authority

122
Q

CDVR

A

Cloud DVR

123
Q

C/N

A

Carrier to Noise

124
Q

CO

A

Central Office

125
Q

DAC

A

Digital Access Controller

126
Q

DC

A

Direct Current

127
Q

DCR

A

Digital Cable Ready

128
Q

DNCS

A

Digital Network Control System

129
Q

DOI

A

Day of Install

130
Q

DQI

A

Digital Quality Index

131
Q

DSG

A

DOCSIS Set-top Gateway

132
Q

DVI

A

Digital Visual Interface

133
Q

EMI

A

Electromagnetic Interference

134
Q

FEC

A

Forward Error Correction

135
Q

FMC

A

Fixed-mobile Convergence

136
Q

FPTV

A

Front Projection TV

137
Q

FSVM

A

Frequency Selective Voltmeter

138
Q

FTUE

A

First Time User Experience

139
Q

GPS

A

Global Positioning System

140
Q

HD-CRT

A

High Definition Cathode Ray Tube

141
Q

HTIB

A

Home Theater In a Box

142
Q

IA

A

Interconnection Agreement

143
Q

IAD

A

Integrated Access Device

144
Q

ICFR

A

In-Channel Frequencey Respone

145
Q

IDC

A

Insulation Displacement Connector

146
Q

IMS

A

IP Multimedia sub-system

147
Q

iOS

A

iPhone Operating System

148
Q

IVR

A

Interactive Voice Response

149
Q

LCoS

A

Liquid Crystal on Silicone

150
Q

LTE

A

Long-Term Evolution

151
Q

MTTR

A

Mean Time To Repair

152
Q

uV/m

A

microvolts per meter

153
Q

NAU

A

Netork Adressable Unit

154
Q

OCAP

A

Open Cable Application Platform

155
Q

OOB

A

Out of Band

156
Q

OSG

A

Operations Support Group

157
Q

OWE

A

Online Welcome Experience

158
Q

PACE

A

Providing Awesome Customer Experience

159
Q

PBX

A

Private Branch Exchange

160
Q

PIN

A

Personal Identification Number

161
Q

POE

A

Point of Entry

162
Q

POP3

A

Post Office Protocol 3

163
Q

POST

A

Power on Self Test

164
Q

PSAP

A

Public Sweep Access Point

165
Q

RCA

A

Radio Corporation of America

166
Q

RL

A

Return Loss

167
Q

RNG

A

Real Next Generation

168
Q

SDU

A

Single Dwelling Unit

169
Q

SIP

A

Session Initiation Protocol

170
Q

SKU

A

Stock Keeping Unit

171
Q

SMD

A

Surface Mounted Device

172
Q

SPI

A

Stateful Packet Inspection

173
Q

STP

A

Shielded Twisted Pair

174
Q

SVOD

A

Subscription Video On-Demand

175
Q

TDM

A

Time Division Multiplexing

176
Q

TP

A

Test Points

177
Q

TRACE

A

Technical Reference and Customer Experience

178
Q

UCD

A

Upstream Channel Descriptor

179
Q

USB

A

Universal Serial Bus

180
Q

UTP

A

Unshielded Twisted Pair

181
Q

VCR

A

Video Cassette Rfecorder

182
Q

VHF

A

Very High Frequency

183
Q

VPN

A

Virtual Private Network

184
Q

WFX

A

Workforce Express

185
Q

XOC

A

eXcellence in Operations Centers

186
Q

Call Hold activate code

A

*52

187
Q

Terminal Make Busy activate/deactivate codes

A

230/231

188
Q

Group Make Busy activate/deactivate codes

A

232/233

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