Question 1

Which device transmits video signals across twisted-pair wiring?

Accepted Answer

A) Modulator 
B) Balun 
C) Switcher 
D) Multiplexer 
A) Modulator 
B) Balun 
C) Switcher 
D) Multiplexer

Question 2

Which of the following technologies uses AC power lines to transmit lighting control system signals?

Accepted Answer

A) Token Ring 
B) FIDDI 
C) PLC 
D) Wireless 
A) Token Ring 
B) FIDDI 
C) PLC 
D) Wireless

Question 3

Which of the following is a national standard that governs the installation and testing of fire alarm systems?

Accepted Answer

A) NFPA 72 
B) NEC 72 
C) IEEE 72 
D) EIA/TIA 72 
A) NFPA 72 
B) NEC 72 
C) IEEE 72 
D) EIA/TIA 72

Question 4

You are troubleshooting a dimmer control where the lamp remains ON even after disconnecting the neutral wire. Which of the following could be the likely cause of this issue?

Accepted Answer

A) Improper AC connections 
B) The dimmer's Thyristor is bad 
C) Dimmer control is faulty 
D) Improper Min or Max setting on dimmer 
A) Improper AC connections 
B) The dimmer's Thyristor is bad 
C) Dimmer control is faulty 
D) Improper Min or Max setting on dimmer

Question 5

You want to use a video output standard that produces when connected from a PC to a projecting device. Which of the following video standards should you use?

Accepted Answer

A) SVGA 
B) DVI 
C) VGA 
D) S-Video 
A) SVGA 
B) DVI 
C) VGA 
D) S-Video

Question 6

Which of the following statements regarding a DSL connection is not true?

Accepted Answer

A) The same telephone line is to be used simultaneously for data and voice services. 
B) A DSL filter is required to extract the frequency at which data is transmitted. 
C) The distance between the subscriber's location and the Telco's CO determines the availability of a DSL connection. 
D) DSL is transmitted as a digital signal. 
A) The same telephone line is to be used simultaneously for data and voice services. 
B) A DSL filter is required to extract the frequency at which data is transmitted. 
C) The distance between the subscriber's location and the Telco's CO determines the availability of a DSL connection. 
D) DSL is transmitted as a digital signal.

Question 7

You are trying to help a customer fix a lighting issue. Which of the following should you do before starting the troubleshooting activities?

Accepted Answer

A) Disconnect all AC controls 
B) Debrief the customer 
C) Retest the system 
D) Apply all manufacturer upgrades 
A) Disconnect all AC controls 
B) Debrief the customer 
C) Retest the system 
D) Apply all manufacturer upgrades

Question 8

Which of the following should you do before you start using a voice-activated remote control that is just installed?

Accepted Answer

A) IR range test 
B) RF range test 
C) Voice training 
D) Video range test 
A) IR range test 
B) RF range test 
C) Voice training 
D) Video range test

Question 9

Which of the following refers to the term that defines the area in a house where everyone receives the same video signal?

Accepted Answer

A) Sector 
B) Video area 
C) Theater area 
D) Zone 
A) Sector 
B) Video area 
C) Theater area 
D) Zone

Question 10

Harry wants to install smoke detectors in his home office. Which of the following locations in the house need not have a smoke detector installed?

Accepted Answer

A) Bedroom 
B) Bathroom 
C) Conference room 
D) Server room 
A) Bedroom 
B) Bathroom 
C) Conference room 
D) Server room

Question 11

Which of the following is a cable test that should be performed immediately after installing a structured cable and before the cable is terminated?

Accepted Answer

A) Fox and hound test 
B) Continuity test 
C) Attenuation test 
D) Crosstalk feedback test 
A) Fox and hound test 
B) Continuity test 
C) Attenuation test 
D) Crosstalk feedback test

Question 12

Which of the following protocols allows multiple internal nodes to share a single external IP address?

Accepted Answer

A) TCP 
B) IP 
C) NAT 
D) UDP 
A) TCP 
B) IP 
C) NAT 
D) UDP

Question 13

Which of the following is a term used to describe an area that can be viewed through a video camera lens?

Accepted Answer

A) Focal range 
B) Grid range 
C) Lens zone 
D) Viewing zone 
A) Focal range 
B) Grid range 
C) Lens zone 
D) Viewing zone

Question 14

Which of the following is the right order in a general troubleshooting procedure?

Accepted Answer

A) 5, 4, 2, 1, 3, 6 
B) 3, 5, 2, 4, 5, 6 
C) 5, 4, 2, 3, 6, 1 
D) 5, 4, 2, 6, 3, 1 
A) 5, 4, 2, 1, 3, 6 
B) 3, 5, 2, 4, 5, 6 
C) 5, 4, 2, 3, 6, 1 
D) 5, 4, 2, 6, 3, 1

Question 15

Which of the following display types is not commonly used on keyboard controls?

Accepted Answer

A) LCD 
B) Plasma 
C) CRT 
D) LED 
A) LCD 
B) Plasma 
C) CRT 
D) LED

Question 16

Which of the following is the maximum number of conductors available in thermostat wiring?

Accepted Answer

A) Two 
B) Seven 
C) Four 
D) Ten 
A) Two 
B) Seven 
C) Four 
D) Ten

Question 17

Which of the following is an RF peer-to-peer mesh protocol used for lighting and other residential electronics?

Accepted Answer

A) X10 
B) Wi-Fi 
C) CEBus 
D) Z-Wave 
A) X10 
B) Wi-Fi 
C) CEBus 
D) Z-Wave

Question 18

Which of the following wiring types should be used for HVAC controls?

Accepted Answer

A) Shielded AWG 14 with a single conductor wire. 
B) Shielded AWG 14 with 2 or more twisted conductor wires. 
C) Shielded AWG 12 with 2 or more twisted conductor wires. 
D) Unshielded AWG 14 with a single conductor wire. 
A) Shielded AWG 14 with a single conductor wire. 
B) Shielded AWG 14 with 2 or more twisted conductor wires. 
C) Shielded AWG 12 with 2 or more twisted conductor wires. 
D) Unshielded AWG 14 with a single conductor wire.

Question 19

Which of the following is used to combine satellite and OTA signals?

Accepted Answer

A) Diplexer 
B) Duplexer 
C) Transformer 
D) LNB 
A) Diplexer 
B) Duplexer 
C) Transformer 
D) LNB

Question 20

Which of the following is the impedance of a coaxial cable used in a distributed audio system?

Accepted Answer

A) 15 ohms 
B) 50 ohms 
C) 75 ohms 
D) 100 ohms 
A) 15 ohms 
B) 50 ohms 
C) 75 ohms 
D) 100 ohms

Exam 17: Dhti

Which device transmits video signals across twisted-pair wiring?

Which of the following technologies uses AC power lines to transmit lighting control system signals?

Which of the following is a national standard that governs the installation and testing of fire alarm systems?

You are troubleshooting a dimmer control where the lamp remains ON even after disconnecting the neutral wire. Which of the following could be the likely cause of this issue?

You want to use a video output standard that produces when connected from a PC to a projecting device. Which of the following video standards should you use?

Which of the following statements regarding a DSL connection is not true?

You are trying to help a customer fix a lighting issue. Which of the following should you do before starting the troubleshooting activities?

Which of the following should you do before you start using a voice-activated remote control that is just installed?

Which of the following refers to the term that defines the area in a house where everyone receives the same video signal?

Harry wants to install smoke detectors in his home office. Which of the following locations in the house need not have a smoke detector installed?

Which of the following is a cable test that should be performed immediately after installing a structured cable and before the cable is terminated?

Which of the following protocols allows multiple internal nodes to share a single external IP address?

Which of the following is a term used to describe an area that can be viewed through a video camera lens?

Which of the following is the right order in a general troubleshooting procedure?

Which of the following display types is not commonly used on keyboard controls?

Which of the following is the maximum number of conductors available in thermostat wiring?

Which of the following is an RF peer-to-peer mesh protocol used for lighting and other residential electronics?

Which of the following wiring types should be used for HVAC controls?

Which of the following is used to combine satellite and OTA signals?

Which of the following is the impedance of a coaxial cable used in a distributed audio system?

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