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2016 Master > cct4 > Flashcards

cct4 Flashcards

1
Q

What are benefits of a Key System (PBX)?

A

1.Allows a group of phone stations to access a common set of phone lines2.Fewer business lines can be purchased3.Additional built in features such as music on hold and call transfer

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2
Q

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

A

eMTA

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3
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 rightb.lead with “Tip” at the topc.Alternate “Tip” and “Ring”d. Leave 1-3 feet of excess wire around block

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4
Q

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

A

RJ-21X

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5
Q

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

A

Mushroom Spool

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6
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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7
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

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8
Q

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

A

Telemetry

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9
Q

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

A

White-Brown-Blue-Orange-Green

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10
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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11
Q

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

A

Video Modulator

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12
Q

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

A

DCT

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13
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.)

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14
Q

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

A

DSL Modem

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15
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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16
Q

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

A

Switch

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17
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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18
Q

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

A

110 Punch Down Connecting Block

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19
Q

This is the LEC network interfacethat supplies 1.54Mb/Sec symmetricaldata throughput.

A

T1

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20
Q

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

A

E-mail

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21
Q

A protocol used on the Internet for exchanging files

A

FTP

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22
Q

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

A

static

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23
Q

This type of IP address is visible to the public

A

routable

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24
Q

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

A

Domain Name

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25
Q

Internet service that locates and translates domain names into IP addresses

A

DNS

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26
Q

A location for passing data in and out of your computer

A

port

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27
Q

10.0.0.0 is an example of a _______ address.

A

Private IP

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28
Q

A unique number for each computer on a given network

A

IP Address

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29
Q

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

A

dynamic

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30
Q

An IP address that does not change.

A

static IP address

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31
Q

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

A

Network

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32
Q

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

A

LAN

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33
Q

A group of computersgeographically far apart, but areconnected.

A

WAN

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34
Q

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

A

VPN

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35
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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36
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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37
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

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38
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

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39
Q

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

A

Subnetworking, or subnetting

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40
Q

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

A

Subnet

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41
Q

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

A

subnets

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42
Q

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

A

They define the network

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43
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

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44
Q

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

A

Network IP

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45
Q

This IP address is used on customer’s equipment.

A

Routable IP

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46
Q

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

A

Broadcast IP

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47
Q

This subnet is for customers with 1 Static IP (one static, publicly routable IP address)

A

/30 subnet

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48
Q

The /30 subnet mask is

A

255.255.255.252

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49
Q

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

A

4

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50
Q

This Subnet is for customers with five Static IPs (five static, publicly routable IP address)

A

/29 subnet

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51
Q

The /29 Subnet uses how many IP addresses?

A

8

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52
Q

The /29 subnet mask is

A

255.255.255.248

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53
Q

This Subnet is for customers with 13 Static IPs (13 static, publicly routable IP addresses)

A

/28

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54
Q

How many IP Addresses does a /28 Subnet use?

A

16

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55
Q

The /28 subnet mask is

A

255.255.255.240

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56
Q

This allows users to privately share information over public communication

A

VPN / Virtual Private Network

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57
Q

What are the two gateway configuration options for a customer with a VPN endpoint?

A
  1. Assign a Static IP to the customer’s device2. Configure Port Forwarding on the IP Gateway
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58
Q

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

A

Firewall

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59
Q

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

A

DMZ (demilitarized zone)

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60
Q

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

A

DMZ (demilitarized zone)

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61
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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62
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

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63
Q

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

A

cusadmin

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64
Q

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

A

mso

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65
Q

MSO

A

Multi system Operator

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66
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

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67
Q

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

A

Port Triggering

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68
Q

Enables you to restrict specific local hosts fromaccessing particular Internet applications

A

Port Blocking

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69
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

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70
Q

what is the address for the Comcast Business Gateway Login?

A

http://10.1.10.1

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71
Q

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

A
  1. Serviceability of the location2. E911 serviceability
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72
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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73
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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74
Q

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

A

The LED of the telephone line isflashing

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75
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

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76
Q

ATS

A

Advanced Technical Services

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77
Q

TTS

A

Trouble Ticketing System

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78
Q

What is the MTTR for Business Class Voice customers?

A

4 hours

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79
Q

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

A

Hunt Groups

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80
Q

Internet Phone services transmit phone calls over a

A

public network

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81
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
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82
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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83
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
84
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
85
Q

What are the four components of the human voice?

A
  1. Rate2. Volume3. Force4. Pitch
86
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
87
Q

The Six Key Techniques to Selling

A
  1. Build rapport2. Ask questions3. Listen4. Position the product5. Communicate the benefits6. Ask for the sale
88
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

89
Q

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

A

video codec

90
Q

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

A

The MPEG files are much smaller for the same quality

91
Q

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

A

MPEG-1

92
Q

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

A

MPEG-2

93
Q

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

A

MPEG-4

94
Q

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

A

I pictures, P pictures, and B pictures

95
Q

DTCP

A

Digital Transmission Content Protection

96
Q

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

A

DHCP

97
Q

ACP

A

Analog Copying and Piracy

98
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)

99
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

100
Q

What is the speed, radius, and frequency of 802.11b ?

A

11Mbps, 2.4Ghz, 300ft

101
Q

What is the speed, radius, and frequency of 802.11a?

A

54Mbps, 5Ghz, 150ft

102
Q

What is the speed, radius, and frequency of 802.11g?

A

54Mbps, 2.4Ghz, 300ft

103
Q

What is the speed, radius, and frequency of 802.11n?

A

600Mbps, 2.4&5Ghz, 300ft

104
Q

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

A

Antivirus software

105
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

106
Q

It can be defined as sending unsolicited bulk email.

A

spamming

107
Q

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

A

A hardware firewall

108
Q

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

A

Hijacking

109
Q

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

A

Stateful packet Inspection

110
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

111
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

112
Q

Before manually troubleshooting any IP problems, what should be done?

A

Run a network diagnostic check.

113
Q

What type of port restricts connections speeds to about 6 Mbps?

A

USB

114
Q

What operating system does not have a registry and does not require a backup?

A

Macintosh

115
Q

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

A

PC (PCMCIA) Card

116
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

117
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

118
Q

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

A

Distinctive Ring

119
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

120
Q

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

A

Cumulative Leakage Index (CLI)

121
Q

How often is a CLI test performed?

A

Annually

122
Q

What 2 ways can a CLI test be performed?

A

ground based or an aerial “flyover”

123
Q

How long must leakage logs be kept on file?

A

2 years Per FCC, Comcast keeps 5 years

124
Q

At what interval is CLI monitored?

A

Quarterly

125
Q

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

A

64 or less

126
Q

What is the most common cause of signal leakage?

A

poorly installed F-connectors in the drop

127
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

128
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

129
Q

In cable systems it us usually caused when the same channel from two (or more) different TV stations is received by the same antenna.

A

Co-Channel Interference

130
Q

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

A

Distortions

131
Q

This is literally the “crossing” of modulation from one channel to another

A

Cross Modulation (XMOD)

132
Q

For systems carrying forty or more channels, what distortion becomes visible before XMOD?

A

composite triple beats (CTB)

133
Q

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

A

Hum Modulation

134
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)

135
Q

The four phases in which a carries is sent in QPSK are at what degrees?

A

45, 135, 225, 315

136
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)

137
Q

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

A

I and Q components

138
Q

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

A

Signal-to-noise ratio

139
Q

NPR

A

Noise Power Ratio

140
Q

What test uses a white noise generator to simulate the data filled spectrum and a band-pass filter to limit the spectrum?

A

Noise power ratio test

141
Q

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

A

Modulation Error Ratio (MER)

142
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)

143
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)

144
Q

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

A

Ingress

145
Q

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

A

-30 dBmV

146
Q

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

A

High Pass Filter

147
Q

POP

A

Proof of Performance

148
Q

These tests help to ensure that cable systems’ forward signals meet FCC standards as outlined in CFR 47, Part 76.605(a)(1-12) of the FCC regulations.

A

The Proof-of-Performance tests

149
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)

150
Q

Usually made of Aluminum, this device prevents ingress/egress and protects the electronics from the weather

A

Housing

151
Q

Separates or combines the AC current’s two parts: the AC power and the RF broadband signals

A

Power Diplex

152
Q

Compensates for the unequal attenuation properties of coaxial cable at different frequencies

A

equalizer

153
Q

Sometimes called a Mop-Up, this device is used to try and correct for any undesired peaks or valleys within the passband of the amplifier

A

Response Equalizer

154
Q

Used to boost the return signals, its bandwidth ranges from 5 to 42 MHz.

A

Return Amplifier

155
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

156
Q

How many ports are represented on a circular tap symbol?

A

2

157
Q

How many ports are represented on a square tap symbol?

A

4

158
Q

How many ports are represented on a hexagonal tap symbol.

A

8

159
Q

What is the lowest tap value?

A

4

160
Q

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

A

Terminating tap

161
Q

When low frequency signals are not attenuated as much as high frequency signals in coax cable, it can result in the level of lower frequency signals exceeding the level of the higher frequency signals. What is this called?

A

reverse tilt

162
Q

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

A

coaxial cable

163
Q

Four components of coaxial cable

A

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

164
Q

What are the three basic parts of a fiber link?

A

the fiber cable, the transmitter, and the receiver

165
Q

PBX

A

Private Branch Exchange

166
Q

What is the money back guarantee for Business VoiceEdge or Business Trunks?

A

60-day money back guarantee

167
Q

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

A

business.comcast.com/promise

168
Q

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

A

As soon as installation is scheduled.

169
Q

What are the benefits of a customer registering their account online before the installation is completed?

A
  1. set up billing preferences2. get installation text reminders3.access to the Upware marketplace
170
Q

Why would a non-customer activate an account with Comcast Business Internet?

A

to access the Upware marketplace

171
Q

What Business Internet services do not include wifi?

A

Internet-only Starter, Hospitality Internet or Ethernet services

172
Q

DPC3939B or DPC3941B

A

Model Number for the Business Wireless Gateway

173
Q

Where can a customer go for more information on the Business Wireless Gateway?

A

mydeviceinfo.comcast.net and download the manufacturer’s User Guide

174
Q

How does a customer reset the Business Wireless Gateway?

A

Use a thin object to press the Reset Button on the back panel. Hold for 2-5 seconds, and then release

175
Q

This is an online marketplace of cloud-based small business applications that are specifically built for business

A

Upware Market

176
Q

A curated collections of business grade cloud solutions with simple access and account managment

A

Upware

177
Q

Where would a customer go to download Norton Internet Security?

A

Upware Market

178
Q

With this you have an on-the-go communications platform including:Microsoft Outlook, Windows Sharepoint, and Mobile Access

A

Hosted Microsoft Exchange

179
Q

What is in a Web Hosting Starter Package?

A

the ability to build a 3-page website at your own domain, and 10 MB of storage space and 100 MB of data transfer

180
Q

What is the cost of the Web Hosting Starter Package?

A

Included at no extra charge

181
Q

How much storage space comes with the Web Hosting Business Package?

A

300 GB of storage space

182
Q

How much storage space comes the Web Hosting Commerce Package?

A

400 GB of storage space

183
Q

How does the Professional Web Hosting Package compare to the Commerce Package?

A

Professional has all of the functionality included in the Commerce Package with even more storage space.

184
Q

In the Upware Market, where can a customer click to learn more about it?

A

Under getting started, click on Upware 101

185
Q

What is EXCLUDED in the 30 day money back guarantee for Business Class Voice, Internet or TV?

A

Installation charges, fees, taxes or per-call charges

186
Q

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

A

business.comcast.com/myaccount

187
Q

What is the model number of the Business Wireless Gateway?

A

DPC3939B or DPC3941B

188
Q

Rings each user in the order they appear on the User List

A

Hunt Group

189
Q

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

A

311 service

190
Q

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

A

711 abbreviated dialing

191
Q

TRS

A

Telecommunications Relay Service

192
Q

What information does Enhanced 911 provide?

A

The telephone number and location

193
Q

What phone number can customers call with 911 related questions?

A

800-391-3000

194
Q

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

A

511

195
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

196
Q

Planning Assistance “call before you dig” number

A

811

197
Q

Directory Assistance number

A

411

198
Q

What is the name of Comcast’s Paperless Billing?

A

Ecobill

199
Q

What four social networks can a customer use to find information about Comcast Business class?

A

Linked-in, google plus, twitter, and facebook

200
Q

What are the four types of Waves?

A

Sine, Square, Quasi-Square, and Sawtooth

201
Q

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

A

Scout Flux

202
Q

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

A

ICFR

203
Q

What are the two types of distortion?

A

Linear and Non-Linear

204
Q

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

A

Every 20 seconds

205
Q

What is the speed, radius, and frequency of 802.11ac?

A

1.3Gbps, 5Ghz, 300ft

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