practice test - 82 questions
Which of the following is true about Internet protocol (IP) voice?
It groups data bits into data packets containing origination, destination, routing, and voice data
Which of the following is true about minimum bending rations?
It is the tightest bend that can be safely applied to coaxial drop cable after it is removed from the reel
Which of the following is true about CAT-1 cabling?
It is typically used in voice applications
Which of the following is an example of professional behavior?
Wearing shoes with oil-resistant and non-marking soles
When drilling an entry hole through an outside wall, drill from the outside to the inside in all materials, except?
Wood
Closed, open, crescent, speed, and torque can describe what type of tool?
Wrench
As a cable installer, you are the vital link between the company and the customer. Upon first meeting you (the cable installer), how much time will it take the customer to build an image of your company?
15 seconds
One thing to keep in mind when drilling through walls is that wall studs are typically set how far apart?
16 inches
At what modulation error ratio (MER) should a 256 quadrature amplitude modulation (QAM) signal operate?
32 dB or greater
Which of the following describes attenuation?
A reduction in amplitude through a cable system
A center conductor that is too short may cause?
All frequencies to be affected
Which of the following will effectively weatherproof the tap drop port connection?
Apply silicone grease to the tap port threads
Which of the following is a characteristic of high-definition television (HDTV)?
Audio surround sound using Dolby Digital technology
The cable modem termination system (CMTS) is one of the two main components of DOCSIS architecture. What is the other?
Cable Modem
Which of the following enables technicians to identify the possibility of cable theft?
Check all drops at the tap against records of disconnects
Which of the following is a proper step when removing the ladder from the strand?
Clear the hooks from the strand
Which tool compresses F-connectors onto coaxial cable?
Compression tool
A Signal Level Meter (SLM) has a 75 ohms input connector, liquid crystal display, and?
Controls for selecting frequency
A cable gateway typically includes a cable modem, multiple quadrature amplitude modulation (QAM) tuners, a telephone interface, and a multi-port and wireless router. What is the function of the QAM tuners?
Convert legacy DTV services being transported on QAM carriers to an Internet protocol (IP) format that can be received by IP devices
Ladders used in the cable industry are durable and do not conduct electricity through the length of the ladder. They are made of?
Fiberglass with aluminum rungs
Which of the following will prevent a device from communicating back to the headend, should be removed on any cable leading to a two-way device?
High-pass filter
Which of the following is true about scoring the center conductor?
It breaks the connection for high frequency RF signals
What is one reason that it is important to work hard to retain customers?
It costs six times more to attract a new customer than to retain an existing customer
What is a function of a cable caddy?
It keeps the cable safe from kinking
Which of the following is the best practice for keeping pliers in good condition?
Keeping hinges well lubricated with oil
Which of the following is a proven stress reliever?
Keeping things in perspective and remembering you're a problem solver
When mounting a wall plate to a wall, position the wall plate against the wall over the entry hole, and align it with an adjacent electrical outlet. What is the next step when mounting a wall plate?
Mark anchor positions and make two anchor pilot holes with an awl
What is the purpose of a scratch awl?
Marking the location on wood or drywall for drilling holes and installing cover plate screws
Which of the following is responsible for reducing crosstalk in twisted-pair cable?
Number of twists
Which amplifier is unsuitable for use with set-top boxes (STB), cable modems, or embedded multimedia terminal adapters (EMTA)?
One-way house amplifier
Which of the following tools is used for twisted-pair work?
Punch-down tool
How often must a cable operator monitor for signal leakage according to the FCC?
Quarterly
When placing the ladder on uneven surfaces, which of the following should be done?
Remove ground material from under one of the ladder's feet
One of the first steps when you reach the site is to inspect the drop cable at the tap. Damaged cable can cause
Signal leakage
Which of the following is a proper technique when descending a ladder?
Slide your hands down the rails
Which of the following will reduce signal strength on all the frequencies in the return path from the customer premises when attached at the tap?
Step attenuator
Which of the following is true about Wi-Fi technology?
The connection between the router and modem is always wired
Most requests to discontinue service are made as a result of which of the following?
The customer is dissatisfied with the service
Which part of the F-connector slides over the dielectric and under the braid?
The internet post
Before digging in an underground installation, the utility lines will need to be located. Which of the following is the electric line?
The red line
Which is true when selecting the proper wire when bonding the drop?
The wire should be solid copper or other corrosive resistant material
On the return path, signals form many sources must be sent on the same cable. What is the name of the technique that allows the signals to be sent without losing data integrity?
Time division multiple access (TDMA)
Which of the following filters block unwanted signals originating inside a customer premises from traveling beyond the tap and into the feeder network?
High-pass filter
Standard definition television (SDTV) has a vertical resolution of?
480 Lines, Interlaced
Which of the following best describes post bot error rate (BER)?
A measurement of all bit error after forward error connection has been applied
What test equipment is used to locate the source of signals egressing out of the feeder cable?
A signal leaker detector or meter
Stop, look, and listen is which of the following?
A technique for dealing with an angry customer
The most common wire category currently used for Internet protocol (IP) voice new installations and new construction is?
CAT-5e
Which tool is considered a prep tool and has two blades for cutting?
Cable stripper
Which of the following is the best maintenance practice of a signal level meter (SLM)?
Calibrate daily, with a professional calibration yearly
Which of the following is one of the three correct ways of carrying a ladder?
D-ring carry
You are at the customer premises and you are using a signal leakage detector to check for leaks. You are detecting multiple leaks in the system. What should you do to isolate the leaks?
Decrease the sensitivity on the signal level meter (SLM)
Which device enables customers to schedule recordings of television programs?
Digital video recorder (DVR)
Which of the following will strengthen signals as they move farther away from the headend through the trunk express system?
Distribution amplifiers
Which of the following is the best drilling technique when routing cable through a brick wall?
Drill through the mortar in between or parallel with the brick
Which of the following can cause interference with aircraft navigation and voice communications?
Egress
When you can see a situation from another's point of view, you are?
Empathetic
Which tool is used to remove old cable clips fastened with nails and to attach drive rings for guiding cable?
Hammer
Another name for a 1EEE connector cable is?
High definition component cable
What does a National Cable & Telecommunications Association (NCTA) recommend about the on time guarantee?
If a present appointment is not met, the installation charges should be waived
You are using a signal level meter (SLM) to troubleshoot a problem, and you are measuring the signal at the wall plate. What should you do next if the signal is normal?
Inspect and test each customer premises equipment (CPE) device and cables
When an outside wall entry hole will not gain direct access to the back of the TV set, or when routing cable around the outside of the house is not practical, what is the next best option?
Locate the entry hole next to existing utility boxes and route the cable through a crawl space or basement
Before drilling in the customer premises interior, what is one thing to keep in mind?
Make the interior cable routing as inconspicuous as possible
Which of the following is a correct step when lifting the ladder using the D-ring carry?
Place one hand on each side of center of ladder before lifting
Techniques for coping with stress include?
Planning for delays
Which type of screen display has been known to use a great deal of energy, can have a short lifespan, but has high-contrast, vibrantly accurate color images?
Plasma
Diagonal, needle-nosed, Scotchlok, and lineman describe which type of tool?
Pliers
Which of the following is true when mounting splitters to an exterior wall?
Position and attach drop cables with a minimum five-inch diameter drop loop for each port
Which of the following should be done when inspecting a pole before beginning an aerial climb?
Pound the pole with a hammer to check for dead or hollow sound
Which of the following guidelines should be followed when attaching exterior drop cable to the premises?
Randomly vary the distance between the attachment points to eliminate the effects of harmonic reflections
Which type of television display has a deeper cabinet, which affects the size of the screen?
Rear projection
One of the first steps when you reach the site is to inspect the drop cable at the tap.
Signal leakage
Which of the following is true when using the six-step troubleshooting process?
Some steps may be preformed simultaneously
You climbed to the top of the extension ladder. After you wrap the safety strap around the strand, where should you attach the safety strap?
The D-ring
The Cumulative Leakage Index (CLI) report is a numerical representation for the total amount of signal leakage in a network. Each cable system must submit a CLI report to what organization?
The Federal Communication Commission (FCC)
A difference between installing in a single dwelling unit (SDU) and a multiple dwelling unit (MDU) is?
The cable should be inaccessible to unauthorized individuals
Which of the following is true about the pathway of an Internet Protocol (IP) voice call?
The call travels as an analog signal over the house wiring to an embedded multimedia terminal adapter (EMTA)
Which of the following guidelines should be followed when attaching the lock box to the house?
The lock box should be located at least one foot from the utility meter and breaker box
Which of the following is the proper placement of an extension ladder when placing it against the strand?
Turn the strand hooks so they face the strand
Before you start work, after climbing an extension ladder, how should you check for electrical hazards?
Use a foreign voltage detector
The following are five of the steps in the six-step troubleshooting process: 1) Identify the problem by gathering information; 2) Analyze the problem using logic and test equipment; 3) Isolate the problem area; 4) Diagnose the problem; 5) Resolve the problem. What is the sixth step?
Verify that the repair was successful
A metal underground water pipe can be used as a bonding point as long as it meets the requirements of the current National Electrical Code (NEC) rules. When is bonding to a metal underground water pipe acceptable?
When the bonding point can be made within five feet of the pipe entrance into the building
