CCT5 Book

Question 1

SOA

Answer 1

Service Order Agreement

Question 1

Outlines the services provided and the costs for the services by a service provider.

Answer 1

Service Order Agreement

Question 1

What is the subnet mask used for a /29 subnet?

Answer 1

255.255.255.248

Question 1

Below are the Guidelines for what?

• Specific Action
• Context of the Action
• Impact of the Person’s Action
• Suggesting for a Remedy or Coaching

Answer 1

Guidelines for Constructive Feedback

Question 1

What are the four co-worker learner types identified in The Learning Cycle?

Answer 1

• Avid Beginner
• Disillusioned Beginner
• Reluctant Learner
• Expert

Question 1

What does the “Comcast Equipment” section of the Business Class Terms and Conditions state?

Answer 1

The customer should never handle Comcast equipment. If that occurs and there is a problem, Comcast may not be responsible.

Question 1

This type of cable can only be used in residential buildings, not business building.

Answer 1

CATVX (X-Rated)

Question 1

This from the National Fire Protection Agency (NFPA) requires that all cabling and primary protectors be grounded to an approved ground when entering a building or entrance facility.

Answer 1

NEC (National Electrical Code)

Question 1

The process of placing an entire packet within another packet and sending it over a network.

Answer 1

tunneling

Question 1

when replacing or installing a drop ,first priorty is

Answer 1

saftey

Question 1

QAM

Answer 1

Quadrature Amplitude Modulation

Question 2

“I feel annoyed when you are late for installs” is an example of

Answer 2

Constructive feedback

Question 2

This type of ghost appears to the left of the picture

Answer 2

Following Ghost

Question 2

When working with a business customer, it is possible that you’ll also have to work with these three during the project:

Answer 2

• Project Manager
• Construction Personnel/Building Maintenance
• Landlord/Building Owner

Question 2

Each MegaPort Gateway (MPG) can support up to ___ rooms, so if the facility is large, multiple MPG’s must be used.

Answer 2

64 Rooms

Question 2

The bandwidth of a Return Amplifier typically ranges from:

a. 5-42 MHZ
b. 30-300 MHZ
c. 5-600 MHZ
d. 50-550 MHZ

Answer 2

a. 5-42 MHZ

Question 3

The most likely system components to cause waveform distortions are:

a. Passive components
b. Amplifiers
c. RC Networks
d. Fiber Optic Cables

Answer 3

b. Amplifiers

Question 4

Where can you find information on mechanical and electrical systems?

Answer 4

Management DepartmentBuilding Plan

Question 4

This map also includes symbols indicating

the other service companies using a

pole, such as the power company,

the telephone company, or both.

Answer 4

Strand Map

Question 4

These maps typically show how active

devices are cascaded and how they

connect to the head-end, hub, or

node.

Answer 4

Amplifier Schematic Map

Question 5

Why is Business Class voice not available for large business customers?

Answer 5

Because Comcast only offers up to 8 telephone lines.

Question 5

While working on a project, who may you want to ask these questions to?

• Are you or the tenant aware of potential landlord restrictions for the installation, such as access, drilling and placement of equipment?
• Is the landlord/building owner aware of business product agreement?
• Do you or the tenant know of the overall approval process to install new services?
• What is the process to contact local Landlord and Comcast personnel?

Answer 5

Landlord/Building Owner

Question 5

chsi installation includes a one -time loss is measured in a db because it is a

Answer 5

ratio

Question 6

A detailed, thorough analysis of all of the features currently existing at a customer site.

Answer 6

Site Survey

Question 7

You must be certified to operate in these environments

Answer 7

asbestos, rooftop work and confined spaces situations

Question 8

CRAN services include: a. High speed data, All-digital Simulcast (ADS), Unencrypted Transport (UET), and Video on Demand (VOD) b. High-speed data, All-digital Simulcast (ADS), Unencrypted Transport (UET), and Land Line Phone Service c. High-speed data, All-digital Simulcast, Land Line Phone Service and Video on Demand (VOD) d. High-speed data, Land Line Phone Service, Unencrypted Transport

Answer 8

a. High speed data, All-digital Simulcast (ADS), Unencrypted Transport (UET), and Video on Demand (VOD)

Question 9

What are common cause of Return Path Interference

Answer 9

* Voice of America * CB * Amateur Radio transmitters

Question 10

This shall not be smaller than 14 AWG

Answer 10

groundind conductor

Question 11

These below are part of what step of the Installation Process? * While technicians are working, attempt to check-in to see if everything is going smoothly. * Often, technicians may not ask for help and it takes your initiative to identify and resolve an issue. * Follow-up can also include coaching, if necessary. * Before you finish up, you may want to have a meeting with the whole team to ensure everyone completed their responsibilities and congratulate the team for their hard work.

Answer 11

The fifth step; Follow Up

Question 11

Second-Order Harmonics are typically how far (dB) below sum and difference products? a. 3dB b. 10dB c. 4dB d. 6dB

Answer 11

d. 6dB

Question 12

What document would help a customer find information on this:"If I'm having problems with my network, how will I know if it's Comcast's responsibility or my responsibility to fix?"

Answer 12

Business Terms and Conditions

Question 12

What document would help a customer find information on this:"Do you give information out to other companies or telemarketers?"

Answer 12

Comcast Customer Privacy Notice

Question 12

In a /28, how many static IPs does the customer get?

Answer 12

13

Question 12

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

Answer 12

Comcast Customer Privacy Notice

Question 12

This type of cable shall be used in vertical shafts and from floor to floor in multi-story buildings.

Answer 12

CATVR (Riser)

Question 12

What questions would you ask yourself to ensure the Site Survey is reviewed effectively?

Answer 12

* What tasks need to be accomplished? * How many people will be needed? * What skill sets are required? * What equipment will be needed? * Are there any special requirements from the customer? (i.e., cable cannot be disconnected during certain hours, etc…) * Where does the equipment go (map)? * When does the installation need to be completed?

Question 12

What is the third step if the Installation Process?

Answer 12

Conduct Team Meeting

Question 13

A support mechanism used to route and support telecommunications cable or power cable. Typically, cable trays are equipped with sides that allow cables to be placed within the sides over its entire length.

Answer 13

Cable Tray

Question 13

SInce you can also perform the same tests that you would for a splitter or DC on a Power Inserter, what would be the difference between the tests for a splitter or DC and the test for a Power Inserter?

Answer 13

If you do not have AC voltage at the input port, then you should check the power supply.

Question 14

How does a CCT5 differ from a CCT4?

Answer 14

CCT4 is for small to medium business. CCT5 is for businesses with 50 employees or more(enterprise).

Question 14

This type of co-worker has become capable in performing their new skill but they're still not confident and need to give a few pointers.

Answer 14

Reluctant Learner

Question 14

What should you do when you're in a situation in which you think NEC codes are not complied with

Answer 14

consult your supervisor

Question 14

These are also known as service order agreements, are an essential element in the Comcast/business customer relationship.

Answer 14

Business Contracts

Question 14

The right to travel over another person's land, known as a right-of-way is the most common type of \_\_\_

Answer 14

Easement

Question 15

Access, Comcast Equipment and Customer-Provided Equipment are sections taken straight from this document that technicians need to know.

Answer 15

Business Class Terms and Conditions

Question 16

16. Comcast High-pass Filters attenuate: a. 50-500 MHZ b. 5-500 MHZ c. 30-300 MHZ d. 3-50 MHZ

Answer 16

d. 3-50 MHZ

Question 17

This type of ghost appears to the right of the picture.

Answer 17

Leading Ghost

Question 19

This is caused when a TV signal (of the same frequency and video content) arrives at a receiver just before, or just after, the desired TV signal.

Answer 19

Ghost

Question 20

Ingress from transmitters operating in the upstream frequency bandwidth with the majority of ingress entering the system between the tap and the customer’s TV set.

Answer 20

Return Path Intereference

Question 21

This type of topology is structured so that every network device on the network has exactly 2 and all packets travel along a ring in the same direction.

Answer 21

Ring Topology

Question 22

The numbering system used to catalogue your system maps.

Answer 22

Map Grid System

Question 23

What document would help a customer find information on this:"Where can I find out how much I'm being charged each month?"

Answer 23

Signed Service Order Agreement

Question 24

A problem that affects all of the customer's services is most likely to be: a. The Set-top Box b. A problem at the Head-end c. A problem at the Drop d. A faulty receiver

Answer 24

c. A problem at the Drop

Question 26

Grounding conductors shall have a current carrying capacity approximately:

Answer 26

equal to that of the outer conductor of the coaxial cable

Question 26

This map provides the layout of the system in a condensed form.

Answer 26

Amplifier Schematic Map

Question 27

Business Class Available Products and Services (2008)

Answer 27

-Business Class Internet -Teleworker-Business Class TV -Ethernet Network Service -Ethernet Dedicated Internet -Ethernet Private Line

Question 27

What does the "Access" section of the Business Class Terms and Conditions state?

Answer 27

The customer needs to provide safe and accessible spaces to install Comcast services.

Question 27

Cable and connecting hardware that provides interconnections between telecommunications rooms, equipment rooms, and entrance facilities.

Answer 27

Backbone cabling

Question 27

This type of topology has a communication center to which all network devices are directly connected. All packets will travel through the communication center.

Answer 27

Star Topology

Question 28

This type of co-worker needs technical support and emotional support so the failures don't become bad habits. Feedback is required so he knows what he's doing right/wrong.

Answer 28

Disillusioned Beginner

Question 30

Cable and connecting hardware that interconnects between telecommunications rooms, equipment rooms, and entrance facilities.

Answer 30

Backbone (vertical) cabling

Question 30

If the signal level at the tap is 15 dBmV, what is the signal level (dBmV) at the box if a 55 MHZ signal is routed through a total length of 155 feet of RG6 cable and a two way splitter? a. 9 b. 12 c. 0 d. 5

Answer 30

a. 9

Question 31

This is provided by the building owner to allow the tenant the right to choose their own cable/Internet/telephone services provider

Answer 31

An easement

Question 32

Another source of interference that affects the return path, but is not ingress related.

Answer 32

Common Path Distortion

Question 34

This map shows streets with pole and pedestal locations and includes the span length or footage between these items.

Answer 34

Strand Map

Question 35

The role of a coach is

Answer 35

to be an experienced supportive partner

Question 37

Cut the shrink boot so that it is long enough to cover:

Answer 37

cover the connector and ## Footnote slightly overlap the cable jacket.

Question 38

What are three services that Comcast has tailored for large business customers?

Answer 38

-High-security Ethernet services -A single point of contact with a National Account Manager -Separate call centers from our residential and small business customers

Question 39

NFPA

Answer 39

National Fire Protection Agency

Question 40

If a customer can be serviced with a plant extention

Answer 40

Serviceable

Question 40

This type of cable shall be suitable for general purpose use with the exception of plenums and risers.

Answer 40

CATV (V-Rated)

Question 40

The Composite Triple Beat (CTB) interference threshhold is how many dB below the carrier signal level? a. 57 b. 25 c. 39 d. 26

Answer 40

a. 57

Question 41

This document includes these headings:Installation and Construction Information and CostsTotal Service Charges

Answer 41

Service Order Agreement

Question 42

CPD

Question 43

If the costs increase, Comcast can't charge more

Answer 43

Disadvantage of a Contract

Question 44

This map shows the locations of the electronic equipment, including the head-end and any hubs, also amplifiers, power supplies, and taps.

Answer 44

Design Map

Question 46

To ensure you bring enough materials, as well as the correct ones, determine the _____ of road bore, aerial and/or underground cable that is required.

Answer 46

Cable Footage

Question 48

Because cable systems are not always constructed exactly like they are designed, your system adds or changes information on the design map. The corrected map is called:

Answer 48

As Built Map

Question 49

While in the"Acquire Necessary Materials" step of the Installation Process, what are the implications of NOT having enough materials?

Question 50

What is the fifth step of the Installation Process?

Answer 50

Follow-Up

Question 52

What are the Guidelines for Constructive Feedback?

Answer 52

- Specific Action - Context of the Action - Impact of the Person's Action - Suggesting for a Remedy or Coaching

Question 54

Below are the five steps for \_\_\_\_\_ ## Footnote * Review Site Survey * Acquire Necessary Materials * Conduct Team Meeting * Perform Actions * Follow-Up

Answer 54

The Installation Process

Question 55

What document would help a customer find information on this:"How do I know what kind of information is not allowed on my website?"

Answer 55

Business Class Internet Acceptable Use Policy

Question 56

A low-resistance connection between two points in an electric circuit that forms an alternative path for a portion of the current.

Question 57

"I would appreciate it if you would arrive at customer locations on time" is an example of

Answer 57

Constructive feedback

Question 58

DNS

Answer 58

Domain Name System

Question 59

What are four disadvantages of a contract?

Answer 59

* Obligates the customer and Comcast * If prices increase, Comcast may not be able to charge more * Discourages flexibility in changes * May not be fully understood by the customer and can cause future problems

Question 59

When determining the route of cable through a building, this is referred to as:

Answer 59

Installing Pathways

Question 60

This codifies the requirements for safe electrical installations into a single, standardized source.

Answer 60

NEC (National Electrical Code)

Question 61

Any enclosed channel designed for holding wires or cables.

Answer 61

Raceway

Question 62

an equalizer does what?

Answer 62

compensates for cable non linearity.

Question 63

-Customer's network and configuration-What Comcast equipment is necessary

Answer 63

Site Survey Key Information

Question 65

How many users constitute a large business?

Answer 65

50 or more

Question 66

Customer has a document outlining how Comcast does business

Answer 66

Advantage of a Contract

Question 67

Restrict feedback to only those items about which you know for certain is

Answer 67

Guideline for Consttructive Feedback

Question 68

When installing a pin connector, if a passive device does not have a gauge etched into the housing to show you how long the pin must be, how will you trim the pin?

Answer 68

Trim the pin length so that it extends ⅛ inch to ¼ inch beyond the seizure screw.

Question 69

what measures the ratio of the error power to the average power in an ideal qam signal.

Answer 69

mer

Question 69

This means our network is close to the customer’s location, but physical construction must happen in order to extend it to the location (running line underground) or inside of the location (drilling through a wall).

Question 70

What four video services can't buasiness customers have?

Answer 70

VOD DVR Premium Channels PPV

Question 71

A group of computers that communicate as if they were attached to the same wire, regardless of their physical location and has the same attributes as a physical LAN, but allows for computers to be grouped together even if they are not located on the same LAN.

Answer 71

VLAN (Virtual Local Area Network)

Question 72

Survey the entire route of a ______ before installation to that there are no obstacles.

Answer 72

Pathway

Question 73

While refering to The Learning Cycle, the least support and instruction/feedback is needed for which co-worker?

Question 75

Bandwidth scalable up to 1 Gbps with multiple Q0S options.

Answer 75

Flexible Configurations

Question 76

VLAN

Answer 76

Virtual Local Area Network

Question 77

What are two different Site-to-Site VPNs that a company can use to connect multiple fixed sites over a public network?

Answer 77

- Intranet-based - Extranet-based

Question 78

What is the subnet mask used in a /28 subnet?

Answer 78

255.255.255.240

Question 78

This device in a hotel uses an available downstream frequency to convert the Ethernet to a coaxial signal.

Answer 78

MegaPort Gateway (MPG)

Question 78

How do you test line splitters and directional couplers to see if they are passing RF signals?

Answer 78

* Remove the port cover. * Use an F-to-housing adapter or a device made for this purpose to connect the SLM to the seizure screw.

Question 80

Wire management ring made of metal or plastic, and shaped like the letter D for routing and supporting distribution cables and/or cross-connections on a backboard.

Answer 80

D-Ring

Question 81

At any temperature above absolute zero, thermal noise is caused by random electron activity of the atoms that make up the conductor, resistor, or any part of the passive circuit in question.

Answer 81

Thermal Noise

Question 82

List 4 of the features included with:Ethernet Network Service

Answer 82

-Any-to-any Connectivity -Class of Service -VLAN Transparency -Web-based Reporting

Question 84

Aside from greater transmission efficiency, optical fiber: a. is unbreakable b. is immune to Ingress and does not radiate RF c. has no practical limitations d. is guaranteed to last forever

Answer 84

b. is immune to Ingress and does not radiate RF

Question 85

When installing a pin connector; after hand tightening, use an adjustable wrench to tighten the front nut \_\_\_\_\_.

Answer 85

¼ to ⅛turn.

Question 86

Includes primary and secondary DNS service. Assitance provided to transfer existing domain names.

Answer 86

Domain Name System (DNS)

Question 87

A very thorough document, detailing what Comcast provides, what Comcast does not provide, and what is expected of the customer

Answer 87

The Business Class Terms and Conditions

Question 89

a leading ghost is usually due to?

Answer 89

signal ingress

Question 90

This means there is no way we can get service into the customer’s location.

Answer 90

Non-Serviceable

Question 91

You are installing new equipment to an existing outlet. Before connecting you must check Ingress with a SLM across the entire: a. 50-600 MHZ spectrum b. 5-550 MHZ spectrum c. 30-300 MHZ spectrum d. 5-42 MHZ spectrum

Answer 91

d. 5-42 MHZ spectrum

Question 92

The 2008 NEC Code states that abandoned cables in plenum space must:

Answer 92

be removed, or used for future purposes, in order to reduce the risk of fire.

Question 93

Connectivity statistics for the previous day, or for the previous seven-day or 30-day period, can be viewed through our secure Web portal.

Answer 93

Web-Based Reporting

Question 94

Discourages flexibility and changes (no downgrades)

Answer 94

Disadvantage of a Contract

Question 96

Optional path and equipment redundancy can be provided for added reliability.

Answer 96

Self-Healing Site Protection

Question 97

Association that writes and administers the National Electrical Code.

Answer 97

National Fire Protection Agency (NFPA)

Question 99

A right to another person's real estate for a specific purpose.

Answer 99

Easement

Question 100

True/False:Is Business Class voice available for large business customers?

Answer 100

No, only 8 telephone lines are available?

Question 101

This shall be as short as practicable

Answer 101

the grounding conductor

Question 103

A 66 block is used for

Answer 103

phone

Question 105

This assigns numbers to the top, bottom, and side of the maps so that you can determine which map to go to next when you are following the signals back to their source.

Answer 105

Map Grid System

Question 106

The limitation of subnetting a network with a router is that all devices on that subnet must be connected to the same switch and that switch must be connected to a port on the router. What could be implemented instead of subnetting?

Answer 106

a VLAN

Question 107

What is the first step of the Installation Process?

Answer 107

Review Site Survey

Question 108

What are the four types of maps used in cable network design?

Answer 108

* Base maps * Strand maps * Design maps * Amplifier schematics or “tree” maps

Question 110

Domain Name System

Answer 110

DNS

Question 111

-Permits & Easements-Cable Footage-Excessive Constructions Needs

Answer 111

Other Site Survey considerations

Question 113

In Cable TV, what temperature in Farenheit do we use as our temperature of reference?

Answer 113

68 degrees farenheit

Question 114

SuggestListen and considerAdmit when you don't know somethingEvaluate actions

Answer 114

Coaching "Do's"

Question 115

At any temperature above absolute zero, _____ is caused by random electron activity of the atoms that make up the conductor, resistor, or any part of the passive circuit in question.

Answer 115

Thermal Noise

Question 117

For building with exteriors like brick, shingles, stucco, and tile, try to drill carefully from

Answer 117

outside to inside

Question 118

the part of the optical fiber that transmits light is ?

Answer 118

the core.

Question 119

What actions do you think are required to ensure that you are running a productive team meeting?

Answer 119

* Clearly describe the project * Perform any necessary on-the-job training * Be specific about who performs what task(s) * Listen to any concerns * Answer all questions * Keep the group focused * Establish a schedule

Question 120

Supports multi-homing with load balancing for faster, more efficient routing between networks.

Answer 120

BGP Routing Protocol

Question 121

The wavelengths of light used in Broadband Communications are: a. 50 THZ and 150 THZ b. 150 GHZ and 550 GHZ c. 50 MHZ and 550 MHZ d. 1310 nm and 1550nm

Answer 121

d. 1310 nm and 1550nm

Question 122

On a directional coupler, what do you do if AC voltage is present on the input and not the outputs?

Answer 122

* Remove the faceplate to determine if the shunts or fuses are in their proper positions and, if fuses are used, that they are intact. * If the fuses are not intact, then replacing them may fix your problem unless there is a short further downstream. * If this is the case, you may need to temporarily install a shunt or a circuit breaker to help determine which leg is shorted.

Question 123

This provides all of the information you will need to know about the adjacent amplifier.

Answer 123

Amplifier Data Box (Tombstone)

Question 125

TDR stands for: a. Total dialectric resistance b. Time domain reflectometer c. Two dimensional receiver d. Three dimensional radiography

Answer 125

b. Time domain reflectometer

Question 126

The primary concern of Signal Ingress is: a. Transmission costs b. Too many free channels c. Loss of uplink d. Signal quality

Question 127

What does the "Customer-Provided Equipment" section in the Business Class Terms and Conditions state?

Answer 127

We are not responsible for any customer-provided equipment, including any of their incompatibilities or problems.

Question 128

In a /30 subnet, how many static IPs does the customer get?

Answer 128

1

Question 129

This co-worker requires little direction and support - begins to take ownership of the new tasks and assignments. These are set to take on a new product or role.

Answer 129

Expert

Question 131

A rigid or flexible metallic or non-metallic raceway of circular cross-section through which cables can be pulled.

Answer 131

Conduit

Question 132

What message do you send to your team by outlining the next steps, assigning responsibility for each step and setting a goal for completion?

Answer 132

* Their input is valued. * Their time is valued. * They are competent enough to work through the team’s issues. * The team as a whole is always moving forward.

Question 133

The grounding shall be as close as practivable to:

Answer 133

the point of entrace

Question 134

What is the most important characteristic of feedback?

Answer 134

Context

Question 135

Typically include instructions, contact information and a monthly rate with charges for ancillary services.

Answer 135

Service Order Agreement

Question 136

The most likely causes of Ghost images are: a. Poor imeadance matching and rain b. Atmospheric conditions and aircraft c. Ingress, poor return loss, and poor directivity d. Cross modulation from adjacent channels

Answer 136

c. Ingress, poor return loss, and poor directivity

Question 137

What are four advantages of a contract?

Answer 137

* Protects Comcast legally * The customer understands exactly what he/she is getting * There are no questions about what a term or service means * Costs and services are agreed upon

Question 138

When checking for ingress, the meter indicates +7.4 dBmV at 35.25 MHz. This is higher than –30 dBmV so before you can connect the drop to the tap, you must: a. Replace the F-connector b. Troubleshoot, locate, and repair the problem c. Troubleshoot, locate, and report the problem d. Cancel the work order

Answer 138

b. Troubleshoot, locate, and repair the problem

Question 139

Is it ok to rest horizontal cables on drop ceilings?

Answer 139

No

Question 140

The main purpose of POP tests is to insure that: a. FCC standards are met b. Customers remain satisfied with service c. Unwanted signals are not present d. Cross modulation is not occurring

Answer 140

a. FCC standards are met

Question 141

This map resembles a street map, complete with features like lakes and rivers, streets, and boundaries.

Answer 141

Base Map

Question 142

If a customer can't get service, regardless of plant extension

Answer 142

Non-Serviceable

Question 143

Comcast outlines the acceptable and non-acceptable uses of our Internet services. This applies to surfing the Internet as well as e-mail and web hosting.

Answer 143

Business Class Internet Acceptable Use Policy

Question 144

What is the second step of the Installation Process?

Answer 144

Acquire Necessary Materials

Question 145

Where fire or smoke barriers are penetrated, what should be done to maintain the fire rating of the barrier?

Answer 145

Need to be fire stopped

Question 147

Eliminates confusion about definitions or terms that are used

Answer 147

Advantage of a Contract

Question 148

What is the C/N ratio at the output of a single amplifier with a NF of 7 dB and an input level of 10 dBmV? a. 59.2 dB b. 56.2 dB c. 62.2 dB d. 17 dB

Answer 148

c. 62.2 dB

Question 149

Most VPNs rely on _____ to create a private network that reaches across the Internet.

Answer 149

tunneling

Question 150

What are the five steps in the installation process?

Answer 150

- Review the Site Survey - Acquire Necessary Materials - Conduct Team Meeting - Perform Actions - Follow-Up

Question 151

What is the subnet mask used for a /30 subnet?

Answer 151

255.255.255.252

Question 153

While working on a project, who may you want to ask these questions to? * Do I need access from the building maintenance crew? * Did you coordinate with the construction personnel to discuss the construction needs?

Answer 153

Construction Personnel/Building Maintenance

Question 154

Over the past couple decades, why was there such a surge in abandoned cables imbedded in concealed spaces?

Answer 154

because as new higher performance cabling was installed, rarely were the old cables removed.

Question 155

In a /29 subnet, how many IPs does the customer get?

Answer 155

5

Question 156

What is the fourth step of the Installation Process?

Answer 156

Perform Actions

Question 158

It is ok to install this cable in a business if installed in metallic conduit or noncombustible tubing or if the vertical shaft is fireproof with fire stops between floors.

Answer 158

CATV (V-Rated)

Question 159

Why would a customer want to use port forwarding on the IP Gateway?

Answer 159

In order to increase security by defining/limiting what information users and groups can access.

Question 160

When a company has a close relationship with another company, they can build an _____ VPN that connects LAN to LAN.

Answer 160

Extranet-based

Question 161

This has an inner coating that melts and sticks to the cable, further preventing moisture from entering the connector.

Answer 161

Shrink boot

Question 162

This document includes these headings:Customer Account InformationServices and OptionsSignatures by Customer and Comcast

Answer 162

Service Order Agreement

Question 163

A Fiber Link System is made up of what three components? a. Fiber, Diode, and Amplifier b. Cable, Transmitter, and Receiver c. Laser, Diode, and Cable d. Laser, Transmitter, and Receiver

Answer 163

b. Cable, Transmitter, and Receiver

Question 164

-Describe the business construction and layout-Identify restrictions due to the landlord-Identify any replacement of cable equipment

Answer 164

Site Survey Key Information

Question 165

A method of reception using an RF current of the proper magnitude and phase relation so the received voltage is of the same nature as the original wave.

Answer 165

Zero Beat

Question 166

A tubular rigid or flexible metallic or non-metallic raceway through which cables can be pulled.

Answer 166

Conduit

Question 167

The term CRAN refers to a: a. Converged Regional Area Network b. Complete Residential Area Network c. Complex Regional Area Network d. Complex Residential Area Network

Answer 167

a. Converged Regional Area Network

Question 168

List 4 of the features included with:Ethernet Dedicated Internet.

Answer 168

-Tailored Bandwidth-Domain Name System -BGP Routing Protocol (optional) -Web-based reporting

Question 169

In a hotel this is installed in each guest room to convert the coaxial signal back to Ethernet over CAT5.

Answer 169

MegaPort Outlet (MPO)

Question 171

what is the signal loss in db,s of each port on 4way splitter

Answer 171

7dbs

Question 172

What will be needed in a business with these attributes? * More than 200 devices on LAN * Lots of broadcast traffic * Groups of users need more security or are being slowed down * Groups of users need to be on the same broadcast domain because they are running the same applications

Answer 172

Customer would need a VLAN

Question 173

The following test does NOT fall within the technical standards for POP compliance: a. Dolby Sound Quality b. Carrier to Noise Ratio c. Video-Audio Carrier Separation d. Differential Gain

Answer 173

a. Dolby Sound Quality

Question 174

Ingress from transmitters operating in the upstream frequency bandwidth with the majority of ingress entering the system between the tap and the customer’s TV set.

Answer 174

Return Path Intereference

Question 175

Known as a channel deletion filter, this device deletes unused channel and inserts local feed for subscription channel.

Answer 175

Notch filter

Question 177

A customer Ethernet network that allows customers to seamlessly link multiple locations together and exchange data up to 1 gigabit per second.

Answer 177

Ethernet Network Service

Question 178

SLA

Answer 178

Service Level Agreement

Question 179

VPN

Answer 179

Virtual Private Network

Question 180

This device at a hotel also provides DHCP services for the guests, IP Address translation, Log-on services, billing, authentication, reporting, and port mapping functions.

Answer 180

IP3 Server Management Server

Question 181

A standard for the safe installation of electrical wiring and equipment.

Answer 181

NEC (National Electrical Code)

Question 182

What is the difference between installing a connector on an active and passive device?

Answer 182

* The manner in which you position the cable. * Use adapters to prevent over-bending the cable.

Question 183

Also called a business contract

Answer 183

Service Order Agreement

Question 185

When using a Tone Generator, always: a. Apply an intermittent signal b. Disconnect from the CPE before use c. Disconnect the Ground Block before use d. Disconnect from the Tap before use

Answer 185

d. Disconnect from the Tap before use

Question 186

Symmetrical dedicated Internet bandwidth configurable from 10Mbps to 1Gbps in Mbps.

Answer 186

Tailored Bandwidth

Question 187

The amplifier data or identification box is sometimes called:

Answer 187

tombstone or headstone

Question 188

when responding to trouble call you should?

Answer 188

speak directly to the customer where the problem exists.

Question 189

What document would help a customer find information on this:"What if my Internet service goes down? Do I still have to pay for it?"

Answer 189

Business Class Terms and Conditions

Question 190

Business Class Available Ethernet Products (2008)

Answer 190

-Ethernet Network Service -Ethernet Dedicated Internet -Ethernet Private Line

Question 191

Dedicated layer-2 capacity between locations.

Answer 191

Dedicated Connectivity

Question 192

What are some unofficial new roles and titles that are assumed with CCT5?

Answer 192

Leader Decision Maker Technical Expert Coach Role Model Supervisor

Question 193

In general, if the building has wooden exterior siding, you will drill from

Answer 193

inside to outside

Question 194

BEAT frequencies are produced by: a. Two signals of exactly the same frequency b. The difference in frequency between two signals, but not the sum of the two frequencies c. The sum of two different frequencies, but not the difference of the two frequencies d. All mathematical combinations of the two different frequencies that don't result in a negative value

Answer 194

d. All mathematical combinations of the two different frequencies that don't result in a negative value

Question 195

This information is something typically found where? ## Footnote * Amplifier Number * Power Supply Number and Power Feed * AC Voltage * Amplifier Cascade * Amplifier Output at Design Frequency * Amplifier Input at Design Frequency * Amplifier Input at Low Forward Channel * Forward Equalizer * Forward Pad * Reverse Output Level * Reverse Input Level * Reverse Equalizer * Reverse Pad * Amplifier Part Number * Reverse Part Number * Footage to Previous Amplifier

Answer 195

Amplifier Data Box (Tombstone)

Question 196

Forward Error Correction (FEC) works to correct transmission problems by: a. Reducing Thermal Noise b. Adding necessary data bits to the video data stream c. Eliminating Ingress d. Increasing signal gain and reducing noise level

Answer 196

b. Adding necessary data bits to the video data stream

Question 197

Why not just subnet the network instead of using VLAN’s?

Answer 197

with a VLAN, devices in different physical locations can be on the same network. With a subnet, devices must be connected to the same switch that switch must be connected to a port on the router.

Question 198

Ham and other broadcast AM carriers that cause interference will typically form a pattern of diagonal lines on the screen. What is this called?

Answer 198

A Beat

Question 199

This type of co-worker enthusiastic but needs clear instructions and lots of feedback because they're about to learn something new

Answer 199

Avid Beginner

Question 200

Taps can also be the cause of a system problem. Troubleshooting here is the same as that of:

Answer 200

Splitters and Directional Couplers

Question 201

Agreed upon services, terms and costs

Answer 201

Advantage of a Contract

Question 202

Constructive feedback focuses on

Answer 202

specific actions

Question 203

This document includes these headings:Billing informationLegal Information and DisclaimersSignatures by Customer and Comcast

Answer 203

Service Order Agreement

Question 205

Thermal Noise is caused by: a. Voltage spikes b. Overheating Equipment c. Imported system components d. Random electron activity

Answer 205

d. Random electron activity

Question 206

A method of reception using an RF current of the proper magnitude and phase relation so the received voltage is of the same nature as the original wave.

Answer 206

Zero Beat

Question 207

Cable that runs from the telecommunications room to a device. It may be installed in either a horizontal or vertical plane.

Answer 207

Horizontal cable

Question 208

A chemical change caused by a reaction to oxygen such as rust.

Answer 208

Oxidation

Question 209

\_\_\_\_ is sending AC voltage from two different power supplies, causing a large spark.

Answer 209

Bucking Power

Question 210

Before you install a connector on a passive device what are the steps you must take?

Answer 210

- Remove the port covers. - If present remove the plugs from the threaded input and output ports. - Loosen the seizure screws at each port you will be connecting.

Question 211

If the signal strength is 10 micro-volts and the noise level is one micro-volt, then the S/N ratio is: a. 10 dB b. 100 dB c. 20dB d. 50 dB

Answer 211

c. 20dB

Question 212

What type of Internet service is Comcast's Ethernet Dedicate Internet similar to?

Answer 212

a T1

Question 214

Protect Comcast legally

Answer 214

Advantage of a Contract

Question 215

drill from outside to inside on brick walls and

Answer 215

use the softer mortar as the drilling point

Question 217

This map shows how the system was designed, including the system signal flow logic, from the head-end to the customers, and the power flow to support the system.

Answer 217

Design Map

Question 218

At a minimum, you should have the following test equipment: a. SLM and VOM b. SLM, VOM and O-scope c. SLM, VOM, and Test TV d. O-scope, SLM, and Test TV

Answer 218

c. SLM, VOM, and Test TV

Question 220

What is the most serious problem from abandoned cables in plenum space?

Answer 220

their potential to both fuel and spread a very large, very hot fire in concealed spaces, in the event of a building fire.

Question 222

a material that shrinks when heat is applied to it.

Answer 222

Shrink boot

Question 224

What are the three different learning styles?

Answer 224

- Visual - Auditory - Tactile

Question 226

How do you test line splitters and directional couplers to see if they are passing AC voltage?

Answer 226

* Remove the port cover. * Place the red test lead on the screw and the black to ground.

Question 227

Obligates the customer and Comcast

Answer 227

Disadvantage of a Contract

Question 228

Interference in the return path signals caused by the reaction of the dissimilar metals, found in active and passive devices, to a combination of the oxidation process and the forward electrical signals.

Answer 228

Common Path Distortion

Question 230

Signal leakage contributing to the overall CLI in a given area is NEVER caused by: a. Faulty F-connectors b. Consumer purchased retail equipment c. Distant Lightning d. Improperly installed cable

Answer 230

c. Distant Lightning

Question 231

If a company has locations that they wish to join in a single private network, they can create an _____ VPN to connect LAN to LAN.

Answer 231

Intranet-based

Question 232

What does NEC Code 2008, Article 820(A) and 830(C) state about abandoned cables in plenum space?

Answer 232

abandoned cables in plenum space must be removed, or used for future purposes, in order to reduce the risk of fire.

Question 233

A panel (e.g., wood or metal) used for mounting connecting hardware and equipment.

Answer 233

Backboard

Question 234

The fifth of five levels aimed towards customer-focused technicians

Answer 234

CCT5

Question 235

QAM provides a means to transmit two carriers of the same frequency at the same time; however, they are: a. Carrying different information and they are 90 degrees out of phase b. Carrying different information and they are 180 degrees out-of-phase c. Carrying different information and they are 65 degrees out-of-phase d. Carrying the same information for redundancy

Answer 235

a. Carrying different information and they are 90 degrees out of phase

Question 236

A customer may be a tenant and may not have the power to allow Comcast to install Business Class services, what may be required?

Answer 236

An easement

Question 237

A 110 block is used for

Answer 237

data

Question 238

What is the benefit of having a VPN?

Answer 238

* Employees of a company use VPNs to connect from a remote location into their office. * This can be useful when employees are traveling or are a telecommuter.

Question 239

37. The four types of maps used in Cable Network design are: a. Regional, Local, External, and Internal b. Base, Strand, Design, and Amplifier (tree) c. Regional, Local, Base, and Strand d. Regional, Local, Design, and Tree

Answer 239

b. Base, Strand, Design, and Amplifier (tree)

Question 240

Terms may not be fully understood by the customer and could cause problems.

Answer 240

Disadvantage of a Contract

Question 241

This is caused in one channel by the carrier from another transmitter operating on the same channel.

Answer 241

Co-channel intereference

Question 242

This change in “termination noise” amounts to approximately:

Answer 242

0.17 dB per 20 degree Fahrenheit

Question 243

A supporting device for horizontal cables that is shaped like a “J”. It is attached to some building structures. Horizontal cables are laid in the opening formed by the “J” to provide support for the cables.

Answer 243

J-hook

Question 244

Any site that can send traffic to any other site, within a customer's network, through a single Ethernet interface.

Answer 244

Any-to-Any Connectivity

Question 246

What are some Common Causes of Return Path Interference?

Answer 246

* Voice of America * CB * Amateur Radio transmitters

Question 247

Where can you find information on a building's mechanical and electrical systems?

Answer 247

* Building plans * Facilities Management department * Physically survey the systems

Question 248

Compared to a 55 MHZ signal, a 550 MHZ signal transmitted through a RG6 cable is attenuated: a. Twice as much b. Three times as much c. Equally d. Much less

Answer 248

b. Three times as much

Question 249

Supervising other CommTechs; performing any complex or difficult tasks that you may be solely qualified to do; interfacing with your supervisor, the customer and vendors are actions you would perform during what step of the Installation Process?

Answer 249

Step 4; Perform Actions

Question 250

Dynamic traffic delivery through the Comcast network with up to three different performance levels.

Answer 250

Class of Service Aware

Question 251

This is caused in one channel by the carrier from another transmitter operating on the same channel.

Answer 251

Co-channel interference

Question 252

In a hotel, this connects directly to the IP3 server via an Ethernet cable.

Answer 252

MegaPort Gateway (MPG)

Question 253

what measures how often an error occurs in a given amount of data?

Answer 253

BER

Question 254

Funneling Effect refers to: a. Combining many channels on a cable b. Summing of signals on the cable return path c. Steering signal direction at Splitters d. Steering signals at Taps

Answer 254

b. Summing of signals on the cable return path

Question 255

The change in “termination noise" amounts to approximately:

Answer 255

0.17 dB per 20 degree Fahrenheit change in temperature.

Question 256

The vertical and horizontal route of the telecommunications cable

Answer 256

Pathway

Question 257

This provides the concrete data needed to take corrective action(s) and to improve performance.

Question 258

Any enclosed channel designed for holding wires or cables.

Answer 258

Raceway

Question 259

Capacitive coupling occurs when: a. Signals on one wire are transferred to a nearby wire without physical connectivity b. Electrons on one conductor jump to a nearby conductor c. The magnetic field around a wire interacts with d. Wires in close proximity to each other arc

Answer 259

a. Signals on one wire are transferred to a nearby wire without physical connectivity

Question 260

A panel (e.g., wood or metal) used for mounting connecting hardware and equipment.

Answer 260

Backboard

Question 261

VLAN configurations can be changed within the customer's network without the need to coordinate with Comcast.

Answer 261

VLAN Transparency

Question 262

-Exterior Type-Layout of Mechanical and Electrical Systems

Answer 262

Other Site Survey considerations

Question 263

Before you leave the meeting, you must ensure that eacH technician knows the following:

Answer 263

- Next Steps - Assignments - Responsibilities - Completion Date

Question 264

What is the speed of a T1?

Answer 264

1.54Mbps

Question 265

While refering to The Learning Cycle, the most support and instruction/feedback is required for which type of co-worker?

Answer 265

Disillusioned Beginner

Question 266

What are the features included with Ethernet Dedicated Internet?

Answer 266

- Tailored Bandwidth - DNS - BGP Routing Protocol (optional) - Web Based Reporting

Question 267

What are the features included with Ethernet Private Line?

Answer 267

- Dedicated Connectivity - Self heiling site protection - Flexible configurations