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2016 Master > No Card (Larry) > Flashcards

Flashcards in No Card (Larry) Deck (50)
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1

RF power is a ___ log function.

10

2

Often used to refer to the range of frequencies able to distribute telecommunications services.

Bandwith

3

According to the MOCA specifications the maximum coax signal path between two devices is what?

300 ft

4

For Comcast, the RF energy that gets into out plant is known as ingress or what?

RFI

5

We partnered with ____to make the purchase process seamless. (easy ordering)

Amazon

6

A suite of applications that enable customers to enjoy the services they have from comcast on as as many platforms as possible.

Converged Products

7

Formally referred to as OCAP, it is a technical standard, which is used in the cable networks of North America.

Tru2way

8

Is an industry-led consortium of over 200 broadcasters, manufactuers, network operators, software developers & regulators from around the world.

DVB Project

9

Effective _____, cable operators must allow self-installation of cablecards.

11/1/2011

10

What does the "u" mean when referring to HD-uDTA?

Indicates that this box will work on the cisco or motorola plant

11

The four main types of dispays are?

Flat Panel, Front Projection, REar projection, Direct View

12

Whats is the 720 interlaced standard notation?

There is none

13

A german physicist, investigated galvanic currents and established the mathematical relationship between voltage, current, and resistance.

Georg Simon ohm

14

Is simply a flow if IP data supplied to a processor at a rate fast enough for real-time decoding

Streaming

15

A set of protocols that enable network devices to automatically discover each others presence

UPnP (Universal Plug and Play)

16

Whats is the term for amplified reflection that can cause return problems?

CPD (common path distortion)

17

What alerts an Xfinity Voice customer to a new voice mail message?

Stutter Dial tone

18

What are the 3 types of calls>

(Local) Domestic, International, Operator Assisted

19

What do you dial in order to place an international call?

011 + country code

20

What are the 3 ways a customer can access Enhanced Voicemail?

1. Dial *99
2. Dial home telehphone number
3. Online, through Xfinity Connect

21

If a customer is only subscribing to Xfinity Voice, the login will be what?

10 digit home telephone number and voicemail password

22

With a supervisory voltage of 42-48 VDC, what would be the tip and ring side voltages?

Tip Side - 0V
Ring Side - (-48V)

23

In North America what is the standard ring pattern?

2 sec of ring voltage followed by a 4 second pause

24

In legacy telephone networks, talk batter & ring voltage, come from where>

Central Office

25

What would you request if you had a vintage rotart phone with xfinity voice

Pulse Dial capability

26

How would you access the GUI to check signal of an eMTA?

192.168.100.1

27

What are the 3 methods for activating Xfinity Voice Services?

1. Technet (Tech360)
2. Online tech activation tool
3.IVR

28

These are the 3 troubleshooting zones where an Xfinity Voice problem may occur

RF or Coax
Copper wiring or jacks
eMTA (gateway)

29

What are the 5 versions of DOCSIS?

1.0, 1.1, 2.0, 3.0, 3.1

30

What version of DOCSIS introduced support for IPV6?

DOCSIS 3.0

31

Phone service that transmits telephone calls over a public network, such as interenet

IP Telephony

32

Worldwide network of public circuit switches used by traditional, local, and long-distance companies

PSTN

33

Technology used to transmit voice and related calls over data networks

IP phone/IP voice

34

This is no longer considered a safe practice while working on phone

Taking phone off hook

35

What are the 5 customer experience pillars

Customer Viewpoint
Automated Support
Reliability
Employee Empowerment
Simplification

36

CPNI

Customer Proprietary Network Information

37

How long must you be a CT2 before becoming a CT3?

6 months minimum

38

Refers to an electromagnetic wave that generally falls in the frequency range 3Khz to 300GHz

RF (radio frequency)

39

Video signal bandwidth is typically express in

MHz

40

What is FM radio Frequency range

88MHz to 108 MHz

41

What wireless technology is associated with 700,800,1700,1900 MHZ?

LTE FDD

42

Coax attenuation specifications are based on what?

100 feet of cable at 68 degree F

43

Each 10 degree increase in temperature results in what?

1.2% increase in Attentuation

44

This would be the best dielectric but not feasible, because there would be nothing to support the center conductor

Air

45

This tupe of attenuation happens when a splitter or pad is inserted to the drop

Passive Loss or Flat Loss

46

A frequency selective receiver capable of tuning a desired frequency with a meter showing the strength of input voltage

SLM (signal level meter)

47

To test the insertion loss of a splitter, follow these simple steps?

Connect a 75 Ohm terminator to the input
Measure RF source level, then insert into one of the outputs
Measure the RF level at the outout
The difference is the port to port isolation

48

A measure of the ability of a circuit to increase the power or amplitude of a signal from the input to the output

Gain

49

An increase of 3 dB ____the signal power

Doubles

50

Whats the formula for Total loss/

cable loss + passive loss

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