CT3 Flashcards
1
Q
a combination of two or more computers or devices that share information and communicate through various topologies
A
Network
2
Q
The recognition of a user as having a valid account on the system with legitimate access to its resources
A
Authentication
3
Q
a computer that handles requests for data, e-mail, file transfers and other network services from other computers
A
Servers
4
Q
WAN
A
Wide Area Network
5
Q
LAN
A
Local Area Network
6
Q
A group of computers geographically far apart, but connected
A
Wide Area Network
7
Q
the rate at which data is transmitted or processed
A
bit rate
8
Q
an electrical impulse representing a zero or one
A
Bit
9
Q
the range of frequencies able to distribute telecommunications services
A
Bandwidth
10
Q
bits in a byte
A
8
11
Q
bits in a kilobyte
A
1024
12
Q
bytes in a kilobyte
A
1024
13
Q
Approximately one million bits
A
Megabit (Mb)
14
Q
Approximately one million bytes
A
Megabyte (MB)
15
Q
megabits in a Gigabit
A
1024
16
Q
megabytes in a gigabyte
A
1024
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)
18
Q
technology that allows electronic devices to exchange data wirelessly
A
Wifi
19
Q
Standard 8-pin connector used to network computers, routers, printers and/or game consoles over an Ethernet connection
A
RJ-45
20
Q
In these cables, the individual pairs are twisted around each other, to minimize induction
A
Twisted Pair Cabling
21
Q
These are the standards for the use of radio signals over specified frequencies to transmit data
A
802.11 Standards
22
Q
The five 802.11 Standards
A
B, A, G, N, AC
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)
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
25
WPA
Wi-Fi Protected Access
26
WEP
Wired Equivalent Privacy
27
This authentication system is typically found in commercial environments and verifies the user’s username and password against a server’s database
802.1x
28
WPA2
Wi-Fi Protected Access version 2
29
4 Types of IP addresses
Private, Loopback, Automatic Private, Public
30
DNS
Domain Name Service
31
These 13 servers can identify and translate any existing domain name
Root Server
32
Transmission of data in only one direction at a time
Half-duplex
33
a type of user interface that allows users to interact with electronic devices, using images rather than text commands
Graphical User Interface (GUI)
34
Adapter that allows a customer to use their electrical system as a transmission path for the home network
HomePlug
35
the activation process flow, which configures the customer’s account and equipment
Comcast Advanced Activation Platform (CAAP)
36
the ability to share resources and high-speed Internet access across all computers connected within the home
Home Networking
37
WOH
Wi-Fi Optimized Home
38
The 5 Major Steps to a Wi-Fi Optimized Home
1. Arrival and Initial Assessment, 2. Discussion with Customer, 3. Detailed Assessment, Device Placement & Installation, 4. Test and Fortify, 5. Demonstration and Customer Education
39
our wireless service platform is built around providing industry leading customer experiences in these three areas
Speed, Coverage, Control
40
What is the product experience web address
https://px.comcast.com/
41
Web address for Xfinity Speed test
http://speedtest.xfinity.com/
42
RSSI
Received Signal Strength Indicator
43
an estimated measure of power level that an RF device is receiving from an access point, router, or Gateway
Received Signal Strength Indicator (RSSI)
44
measurement scale for RSSI
-100 to 0 dBm
45
small devices that can be paired with the xFi Gateway to create a WiFi mesh network in the home
xFi Pods
46
Website for connecting xFi Pods to customer owned Gateway
www.plumewifi.com
47
maximum throughput for xFi Pods
200 Mbps
48
offers unlimited data, online security measures, and additional technical support to optimize Wi-Fi performance
xFi Complete
49
a powerful, secure in-home WiFi experience offering reliably fast speeds, wall-to-wall coverage, control via the Xfinity app, and Advanced Security
Xfinity xFi
50
A command line that displays the IP address, subnet mask, and default gateway for all adapters
Ipconfig
51
A utility to determine whether a specific IP address is accessible; it sends a packet to the specified address and waits for a reply
Ping
52
A utility that traces a packet from your computer to an internet host:
Traceroute
53
Phone number for Xfinity Prepaid internet
1-855-75PREPAID
54
2 refill options for Xfinity prepaid internet
7-day and 30-day
55
Step 1 of the Wi-Fi Optimized Home
Arrival and Initial Assessment
56
Step 2 of the Wi-Fi Optimized Home
Discussion with Customer
57
Step 3 of the Wi-Fi Optimized Home
Detailed Assessment, Device Placement & Installation
58
Step 4 of the Wi-Fi Optimized Home
Test and Fortify
59
Step 5 of the Wi-Fi Optimized Home
Demonstration and Customer Education
60
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
Quadrature Amplitude Modulation (QAM)
61
Tuners in an XG1
6
62
Tuners in an XG2
4
63
How long can you pause an XG1
60 minutes
64
How long can you pause an XG2
25 minutes
65
How long can you pause an XiD/Xi3
25 minutes
66
How long can you pause an Xi5/Xi6
25 minutes
67
Three Phases of X1 Platform Implementation
Installation, Activation, Remote pairing/programming
68
eMTA
Embedded Multimedia Terminal Adapter
69
This notification appears when Live TV is displayed and the customer interacts with the remote control– but the Guide has not fully loaded
One moment please
70
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
tru2way fromally Open Cable Application Platform (OCAP)
71
MHP
Multimedia Home Platform
72
What is the capacity of the hard drive in the XG1 STB
500 GB
73
First step of the Home Equipment Installation Process
Establish Customer's Requirements
74
Second step of the Home Equipment Installation Process
Assess Current Home Equipment Setup
75
Third step of the Home Equipment Installation Process
Plan Installation of the Home Equipment
76
Fourth step of the Home Equipment Installation Process
Connect, Configure, and Install the Home Equipment
77
Fifth step of the Home Equipment Installation Process
Verify the Installation
78
Sixth step of the Home Equipment Installation Process
Educate the Customer
79
ILEC
Incumbent Local Exchange Carrier
80
phone company which traditionally had the exclusive franchised right and responsibility to provide local dial tone
Incumbent Local Exchange Carrier (ILEC)
81
CLEC
Competitive Local Exchange Carrier
82
The technical relationship between Comcast and an ILEC is managed through a lengthy negotiated document is called
Interconnection Agreement (IA)
83
At a customer’s home, the specific location for the interconnection between the ILEC and Comcast is the
NID
84
Phone service that transmits telephone calls over a public network, such as the Internet
IP Telephony
85
CMTS
Cable Modem Termination System
86
A term used in IP telephony for methodologies and transmission techniques that manage the delivery of voice, using IP packets
Voice over Internet Protocol (VoIP)
87
LRN
Local Routing Number
88
NPAC
Number Portability Administration Center
89
A device that allows the telephone company to route and connect customers to one another
Telephone Switch
90
Worldwide network of public circuit-switches used by traditional, local, and long-distance companies
Public Switched Telephone Network (PSTN)
91
A telephone line dedicated to a specific subscriber. This line sends signals through the system, based on a subscriber making and receiving calls
Subscriber Line
92
A site where telecommunications companies physically interconnect their systems with other networks
Point of Presence (POP)
93
DTMF
Dual Tone Multi-Frequency
94
A condition caused when packets are not received in the correct order, or when they take too long to arrive at their destination
Jitter
95
Delay associated with inconsistencies, or impairments, in the data transport stream
Latency
96
The eMTA battery provides this many hours of standby time in case of power outage
5 to 7
97
A number owned by Comcast and assigned to a customer ordering Xfinity Voice
Native number
98
A number owned by another Local Exchange Carrier but temporarily assigned to Comcast
Ported number
99
2 types of Silver Satin Cable
Straight and Crossover
100
This type of silver satin cables should always be used from the Gateway to the wall jack, to prevent reverse polarity
Straight
101
This type of silver satin cable is used to connect the telephone to the wall plate or directly to the Gateway
Crossover
102
When a telephone is on-hook and there is a potential difference of 48 volts between the tip and ring it is known as
Idle or supervisory voltage
103
The DC voltage present in the circuit while the telephone is off-hook
Talk battery
104
Maximum data rate for CAT 1 wire
1Mbps
105
Maximum data rate for CAT 3 wire
10Mbps
106
Maximum data rate for CAT 5 wire
100Mbps
107
Maximum data rate for CAT5e wire
1000Mbps
108
Maximum data rate for CAT 6 wire
10Gbps
109
Maximum length for CAT 1 wire
15 feet
110
Maximum length for CAT 3 wire
150 feet
111
Maximum length for CAT 5 wire
328 feet (100 meters)
112
Maximum length for CAT5e wire
328 feet (100 meters)
113
Maximum length for CAT 6 wire
328 feet (100 meters)
114
A telephone uses which two modular connectors
2-position and 6-position
115
The “ring to answer” setting on a customers fax machine should be set to this if they want to receive a fax
less than the number of rings required to trigger voicemail
116
A fax machine should always be connected in this kind of configuration
Y configuration
117
If a customer would like to have a Dedicated Fax Machine they will need a
second telephone number
118
This isolates the alarm panel from the Gateway in the telephone circuit
RJ31X jack
119
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
Line seizure
120
lets you connect compatible devices to the Xfinity Home platform and interact with the smart devices you use every day
Works with Xfinity Home
121
Allows a customer to create three-party conference calls
3-way Calling
122
What number does a customer enter to use Enhanced Voicemail
*99
123
Allows a customer to create a list of people whose calls will be forwarded to a number they designate
Call Forwarding Selective
124
Allows customers to forward incoming calls when away from home
Call Forwarding Variable
125
Automatically rejects calls from Caller-ID-blocked numbers
Anonymous Call Rejection
126
Ensures that the number of the last incoming caller is traced so that appropriate action may be taken against a harassing party
Call Trace
127
Allows customers to call their eight most important people by pressing just one digit
Speed Dial 8
128
Redials a busy number until the line is available
Repeat Dialing
129
Connects a customer to 30 phone numbers by pressing two digits
Speed Dial 30
130
Ensures the customer’s name and number are marked “private” or “anonymous”
Caller ID Blocking
131
Allows a customer to take a second call without disconnecting the first
Call Waiting
132
Lets a customer know who is on the line before answering the call
Caller ID
133
Tells a customer the number of the last incoming call and allows automatic return call
Last Call Return
134
What number does a customer enter to use Last Call Return
*69
135
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
Call Screening
136
What are the two types of call forwarding
Selective and Variable
137
List the 4 steps of the Troubleshooting Process
Identify, Isolate, Repair, Verify
138
REN
Ringer Equivalence Number
139
The total REN value in an individual circuit should not be greater than
5
140
What are the 5 types of TV displays?
Cathode Ray Tube (CRT), Rear Projection, Front Projection, Plasma, and Liquid Crystal Display (LCD)
141
CRT
Cathode Ray Tube
142
In this type of TV display, internal projection tube and lens alignment problems can degrade the picture
Rear Projection TV
143
This type of TV display uses a light source behind three LCD matrix panels
Front Projection TV
144
What technology do Front Projection TVs use to improve picture quality?
Digital Light Processing (DLP)
145
This type of TV display uses thousands of florescent lights grouped in sets of three or four that comprise pixels
Plasma TV
146
LCD
Liquid Crystal Display
147
This type of TV display uses backlighting behind crystals, which block or pass light to create images
Liquid Crystal Display (LCD)
148
LED
Light Emitting Diode
149
Most televisions after 2014 use what technology to provide clearer pictures
LED Backlighing
150
LED backlighting can result in TV sets with screens as thin as this amount:
0.3 inches
151
Which type of TV has a large screen and can weigh up to several hundred pounds?
Cathode Ray Tube (CRT)
152
Which type of TV has the best resolution and a long life span?
Liquid Crystal Display (LCD)
153
What are the 4 types of remote controls?
Dedicated, Unified, Universal, Univeral Learning
154
This type of remote operates only the equipment it comes with:
Dedicated Remote
155
This type of remote operates the equipment it comes with plus another device of the same brand:
Unified Remote
156
This type of remote supports devices from different manufacturers:
Universal Remote
157
This type of remote is programmable to function as a dedicated remote for the device:
Universal Learning
158
This was the first remote to utilize an xfinity button as the path to the main menu
XR2 remote
159
This was the first xfinity remote to integrate voice control:
XR11 Remote
160
This was the first xfinity remote to not use a "setup" button
XR15
161
If the light blinks red when trying to use the voice command, the remote is in this mode:
Infared (IR) mode
162
This type of cable carries standard definition video and audio components together
Coaxial Cable
163
This type of cable uses one connection for video, and 2 connections for audio
Composite Cable
164
A composite video signal is comprised of these three things:
Brightness, Color Information, and Sychronization pulses
165
This type of cable carries the two video signals on a single cable, with a 4-pin or 7-pin mini-DIN connector
S-Video Cable
166
This type of cable uses 3 connections for video and 2 connections for audio
Component Cable
167
Component Red:
Phase Shift Red (Pr) - Chrominance
168
Component Green:
Phase Shift Y - Luminance
169
Component Blue:
Phase Shift Blue (Pb) - Chrominance
170
This type of cable is a 19-pin compact audio/video interface for transmitting uncompressed digital data:
High Definition Multimedia Interface (HDMI) Cable
171
HDMI
High Definition Multimedia Interface (HDMI) Cable
172
This HDMI version adds a maximum format support of 10k @120Hz, ulta high speed (48Gbit/s), and expanded support for HDR content:
HDMI 2.1
173
In a standard RCA stereo cable, which color is used for left, and which color is used for right?
White for Left, and Red for Right
174
This type of audio cable supports Dolby Digital 5.1, 6.1, and 7.1 output:
Sony/Philips Digital Interconnect Format (SPDIF)
175
SPDIF
Sony/Philips Digital Interconnect Format
176
This type of audio cable supports Dolby Digital 5.1, 6.1, and 7.1, 7.2, THX, and DTS output:
SPDIF Optical Cable
177
A device provided by comcast that plugs into a digital cable-ready TV and permits reception of encrypted services
CableCARD
178
DVR
Digital Video Recorder
179
A device that records programming digitally on a large hard drive
Digital Video Recorder (DVR)
