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计算机考试 | CompTIA认证考试

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单选题 Which of the following is the correct wiring order for an RJ-11 two line jack?()

A

Black,Green,Red,Yellow

B

Black,Red,Green,Yellow

C

Red,Black,Green,Yellow

D

Yellow,Red,Green,Black

单选题 Wires that are installed in air returns above a ceiling must be()

A

fire proof

B

fiberglass coated

C

plenum rated

D

teflon coated

单选题 When integrating a media server into a home theater, which of the following terms BEST describes the technology used to protect the interest of copyright holders (e.g. multimedia content)?()

A

Digital Rights Management (DRM)

B

MPEG Layer-3 (MP3)

C

Internet Key Exchange (IKE)

D

Content Management System (CMS)

单选题 Which of the following determines if the alarm should sound or an entry delay should start?()

A

The sensor itself

B

The way the zones are wired

C

The zone type

D

The digital dialer

单选题 Which of the following does an astronomical time clock do?()

A

Determines the ambient light at night with a photocell.

B

Calculates sunset and sunrise times based on geographical area.

C

Determines the start and end of each of the seasons.

D

Synchronizes the local time displayed with the official world time.

单选题 Which of the following can cause ghosting in a video image?()

A

Bent pin on an S-Video cable

B

Mislabeled component cables

C

Defective HDMI cable

D

Improperly terminated coax cable

单选题 Which of the following BEST describes CAT5e?()

A

Contains four pair of wires of various gauge

B

Contains two wires in a red fireproof jacket

C

Contains four twisted pairs of wires

D

Contains eight wires within a thick jacket with a rip cord

单选题 Which of the following is a diplexer used for?()

A

Allows two satellite tuners to use the same dish.

B

Connects the low noise block down converter (LNB) to the multi-switch.

C

Combines satellite and over the air (OTA) signals.

D

Allows one LNB to use two satellites.

单选题 When installing cables, which of the following is the BEST way of identifying the individual cables?()

A

A cable chart mounted in the cabinet

B

A label at the tip of the cable

C

A label within six inches at each end of the cable

D

A penciled notation on the panel cover

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