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2016 Master > New Hire 16 > Flashcards

New Hire 16 Flashcards

1
Q

First component of the Comcast cable network. Responsible for receiving and processing signals and then sending those signals over the Comcast network to customers

A

Headend

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2
Q

Types of headends

A

DCRF(dry creek road facility)The headend

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3
Q

Serves as a gateway to both the public internet and Comcasts own managed nationwide network

A

The headend

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4
Q

Collects signals from a variety of sources, such as satellite feeds, and directs them to headend

A

DCRF

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5
Q

Benefits of using fiber optic cable for transportation of signals

A

Low signal loss,Greater bandwidth,Increased security, Flexibility and durability

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6
Q

Benefits of the hfc network

A

Enhanced signal quality, Increased network reliability, Increased flexibility to quickly launch new and complex services

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7
Q

Transforms light energy from optical cable to RF or electrical energy on the coaxial output

A

The node

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8
Q

Transports modulated light between the fiber node and the headend

A

Fiber optic link

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9
Q

Used for routing or splitting signals. Does not require power to operate

A

Passive devices

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10
Q

Allows signals to and from the customer in this part of the network. Provides the conversion from the fiber optical cable to coaxial cable

A

Fiber node

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11
Q

Is connected to the coax cable. The RF energy is used to modulate the laser emission.it uses special lenses to focus light into the fiber optic cable.

A

Laser transmitter

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12
Q

Carries signals to and from the node through the hardline coaxial cable to communities for connection to the customer drop

A

Distribution system

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13
Q

Active device(3 examples)

A

Amplifiers, Power supplies, Nodes

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14
Q

Starts at the tap and terminates at the cpe

A

Drop system

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15
Q

Attached at the tap or in the house to prevent reception of certain frequencies

A

Traps/filters

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16
Q

Attached to the drop at the tap to protect the trap and ensure that it will not be removed by an unauthorized person

A

Security sleeves/shields

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17
Q

TechOps app that allows techs to get access to the latest news, alerts and info

A

Tech Nucleus

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18
Q

Apps that require VPN

A

Scout, Scout flux, Refer2maint, Handbook, Scorecard, Time entry

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19
Q

Apps that require Internet access only

A 
Comcast remote codes
Tech net
HHC
Docsis info
Teamcomcast
Activation server
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20
Q

A vast computer network linking smaller computer networks worldwide

A

Internet

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21
Q

When was Comcast founded

A

1963 as American Cable Systems. Our first system was built in Tupelo, Mississippi. Largest cable operator in USA

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22
Q

Provides customers with reference information for quick and efficient resolution of inquiries and/or problemsGives customers confidence that they are receiving services from a reputable company

A

Welcome Kit

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23
Q

U.S government agency established in 1934 to regulate electronic communications

A

FCC(federal communications commission)

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24
Q

Rule of three: xfinity tv

A

Provide a welcome kit, Demonstrate navigation of the onscreen guide, Explain how xfinity on demand and xfinitytv.com work

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25
Q

Rule of three: xfinity Internet

A

Ask the customer to create an xfinity.net e-mail and password, Take the customer through the online welcome site xfinity.comcast.net, Demonstrate xfinity.comcast.net benefits/Welcome kit

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26
Q

Rule of three: xfinity voice

A

Confirm customers new phone number, Demonstrate voicemail and deliver Comcast welcome kit/Discuss benefits of xfinity connect

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27
Q

A type of cable which contains two conductors, one inside and the other outside around it, separated by an insulating layer

A

Coax cable

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28
Q

coax cable consists of

A

center conductor, layer of insulating material called dielectric, braid/foild shield, outer jacket

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29
Q

copper-clad steel is used for

A

drop cable center conductor

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30
Q

copper-clad aluminium is used for

A

hard line cable center conductor

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31
Q

substance that allows heat or electricity to pass along or through it

A

conductor

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32
Q

characteristic of RF propagation in a cable in which higher frequencies tend to travel along the surface of the conductor rather than throughout its mass

A

skin effect

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33
Q

most common dielectric material

A

polyethylene foam

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34
Q

density of ____ determines the impedence of the cable

A

dielectric

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35
Q

serves as return conductor for ground current on drop system

A

coax shielding (aluminum braid/foil)

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36
Q

type of cable used in MDUs and long drops

A

QR320

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37
Q

this cable must be used in all aerial installations

A

messenger cable

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38
Q

messenger is made of

A

galvanized steel

39
Q

type of cable that should never be used inside a customers home

A

flooded cable

40
Q

name four types of cable types

A

CATV(general use)CATVXCATVR CATVP

41
Q

AcronymCATV

A

Community Antenna Television

42
Q

used for drops greater than 150ft

A

series 11 or qr320

43
Q

The difference between transmitted and received power

A

attenuation

44
Q

Five factors determining attenuation

A

center conductor size, dielectric material, cable length temperature, frequency

45
Q

____ is the condition that results when two components of a cable sytem are operating at a different ___

A

impedance mismatch, impedance

46
Q

How can a customer cancel or reschedule an appointment without speaking to a live agent?

A

1) Online at Xfinity.com 2) Via the My Account app

47
Q

What information do you need to add a customer owned modem to an account using the ACEA Tool Useful Link in Einstein?

A

Customer Account Number, MAC Address, Make and Model of modem

48
Q

What does the STB displaying HUNT on the cable box mean?

A

Dead Outlet or Headend Issue (HOW10281)

49
Q

When you connect your computer directly to your cable modem, you’re given a unique IP (Internet Protocol) address assigned by a _______ ____ _____________ ________ server?

A

Dynamic Host Configuration Protocol [DHCP] (HOW3588)

50
Q

Where can a customer go to find Comcast-approved retail modems and eMTA devices?

A

mydeviceinfo.xfinity.com (HOW9018)

51
Q

Where can a customer go to create a username once they’ve ordered service?

A

www.xfinity.com/getstarted

52
Q

This was retired on XBOX 360 and Samsung Smart Tv (2012 versions)

A

Xfinity Ondemand app

53
Q

Where are self-help options for customers wishing to troubleshoot Xfinity Internet issues available?

A

xfinity.com/internethelp (POL1095)

54
Q

What website does a customer go to for an in-home experience on their PC?

A

tv.xfinity.com (HOW8765) or xfinity.com/watch

55
Q

Can a customer connect to xfinitywifi hotspots before their service is installed?

A

Yes

56
Q

What are the four troubleshooting steps?

A

Identify, Isolate, Repair, Verfiy (ct.3pg298)

57
Q

This document describes Comcast’s information practices, including how personal information is collected, disclosed and protected.

A

Comcast Customer Privacy Notice http://www.comcast.com/customerprivacy/

58
Q

What fastener are preferred over fasteners held in place with nails or staples?

A

Screw type

59
Q

What is the optimum viewing angle of dlp projectors and lcd projectors?

A

130 degrees

60
Q

xfinity tv website ?

A

xfinity.com/watch or tv.xfinity.com

61
Q

Get up to _ email address – each with _ GB of storage

A

7, 10

62
Q

Range of wavelengths of elecromagnetic emission

A

Spectrum

63
Q

Name 3 Places signal security can be applied

A

Headend, tap, and Set top box

64
Q

Name the 4 troubleshooting steps

A

Identify, Isolate, Repair, Verify

65
Q

Name 5 Things we never attach a drop to at the home

A

Chimney, TV antenna, lightning rod, rain gutter, power riser

66
Q

The difference between a signal’s maximum or minimum value during one cycle and usually indicates signal strength or intensity.

A

Amplitude

67
Q

Name the 5 steps of drop installation

A

Plan your route, work at the tap, work at the home, Bond, verify signal

68
Q

A condition that results when two components of a system are operating at a different impedance.

A

Impedance mismatch

69
Q

Name four things that affect wifi range

A

Distance, building construction, electromagnetic interference, Electronic devices in the same frequency range, number of devices connected to the network.

70
Q

What is our maximum allowed hole size?

A

3/4”

71
Q

MAC

A

Media Access Control

72
Q

What is the minimum aerial clearance required for a business or alley?

A

16 feet

73
Q

What is the minimum aerial clearance required for a residential driveway where there may be truck traffic.

A

15.5 feet

74
Q

APIPA

A

Automatic Private IP Addressing, This type of IP is assigned by windows when a DHCP server is either temporarily or permanently unavailable.

75
Q

What is the minimum aerial clearance required for a pedestrian traffic area

A

10 Feet

76
Q

What are the six steps of the home customer experience?

A
  1. Prepare for the job, 2. Greet the customer and confirm work, 3. Setup for the job, 4. Perform the work, 5. Pre-close, 6. Close.
77
Q

What is the minimum clearance of our cable from power at a midspan?

A

24 inches

78
Q

What is the minimum clearance of our cable from phone drop at the home?

A

6 inches

79
Q

What are the four types of systems in our network?

A

Headend, Transportation, Distribution, Drop

80
Q

What is the minimum clearance of our drop from power at the pole?

A

40 inches

81
Q

What’s the bending radius of series 6,7, and 11

A

2.5inch, 4 inch, 4.5 inch

82
Q

Cable should be pulled from __ the reel

A

Under

83
Q

All F connectors must be __ type with ___ retention.

A

Compression, 360-degree

84
Q

From the outlet to the cpe should be no more than

A

10 inch pounds of torque (20 everywhere else)

85
Q

This type of thread protector must be used on ports that are 0.500 inches or longer

A

Long sleeve (short thread protector if less than)

86
Q

Name the four types of remotes

A

Universal, Unified, Dedicated and Universal Learning

87
Q

On a component video cable, which color carries the luminance?

A

Green

88
Q

What are the top five connector problems

A

Moisture damage
Center conductor too long or too short
Connector was not tightened properly to the port
Braid was removed, left too long or short
Wrong connector for cable type

89
Q

define RF or Radio Frequency

A

an electromagnetic signal above the audio and below the infrared frequencies(electromagnetic wave that generally falls in the frequency range of 30kHz to 300GHz)

90
Q

Procedure for installation, reconnects, and installation of additional outlets:

A

Step 1: Verify the customer’s address and greet the customer.

Step 2: Verify that all hardware and cable meet BRIS specifications.

Step 3: Reconnect the drop, if it is not connected already.

91
Q

Follow these safety precautions in a Crawl Space

A
  1. Wear hard hats because of the limited space.
  2. Be aware of the sharp ends of exposed nails.
  3. Be aware of standing water.
  4. Look for animals
92
Q

Used to hold cable to aluminum or steel siding.

A

Plastic Siding Clip

93
Q

Welcome kits are now delivered via mail to any cx who requests a paper version. However technicians still need to hand deliver what?

A

Legal book of terms and conditions, privacy policy, phone stickers for phone customers

2016 Master (109 decks)

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