最新的RCDD Certification認證 RCDD-002考試題庫

問題1

Exhibit:

In this future marina layout, assuming that there are fewer than 10 slips being cabled, what would be the pre-cabling guideline to follow for terminal A?

A. Place distribution cable onto the dock and terminate in a suitable cabinet or enclosure. Install service drop to each boat slip.

B. For security, each install should be terminated in the patch panel/cross-connect at the dockmaster or marina office.

C. Installed one or two pair cables from the boat slips to a distribution terminal on the closest point of land.

D. Pre-cable each boat slip during construction.

正確答案: C

問題2

One interior TTY must be provided at locations defined as public accommodations with ________ or more pay telephones.

A. Eight

B. Four

C. Six

D. Two

E. One

正確答案: B

問題3

When labeling pathways, which one of the following guidelines should be met?

A. Pathways do not need to have unique identifiers as they are only supporting cables.

B. Labeling should be affixed at the ends of each pathway.

C. Only pathways containing fire/life/safety systems and electrical system should be labeled to prevent interference with other applications.

D. Avoid marking conduits from the main equipment room (ER).

E. Pathways should not be labeled at regular intervals to avoid labeling removal during cable installation.

正確答案: B

問題4

Color codes for cross-connections fields have been used for many years. Which color is used to identify campus backbone?

A. Purple

B. Green

C. Brown

D. White

E. Blue

正確答案: C

問題5

If looking to specify an optical fiber backbone within a building going 275 m (902 ft) between the equipment room (ER) and the telecommunications room (TR), what type of fiber should be specified to support a 10 GB ethernet application?

A. 50 micron laser optimized multimode

B. OM1

C. 62.5 micron multimode

D. 50 micron multimode

正確答案: A

問題6

A building has six floors plus a basement. Each floor is 10,000 square feet and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through the telecommunications room (TR) on each floor. What is usually the MOST cost effective coaxial cable design to implement on the horizontal distribution from the telecommunications room (TR)?

A. Trunk and tap

B. Video over balanced twisted-pair

C. Video over optical fiber

D. Home run

正確答案: A

問題7

The ability of a conductors insulation to transmit an electric field is called:

A. Conductivity

B. Permittivity

C. Capacitance

D. Transmitability

E. Reactance

正確答案: B

問題8

IPv-4 addresses are ________ bits in length.

A. 24

B. 48

C. 64

D. 16

E. 32

正確答案: E

問題9

Buildings larger than ________ must contain a dedicated room for the termination of entrance facilities.

A. 11,160 square m (120,000 square ft)

B. 9300 square m (100,000 square ft)

C. 5529 square m (60,000 square ft)

D. 7389 square m (80,000 square ft)

E. 13,300 square m (140,000 square ft)

正確答案: B

問題10

You are designing a 4.9 GHz microwave system that is using rectangular waveguide from the transceiver to the inside wall of the shelter and an antenna using elliptical waveguide from the antenna to the outside wall of the shelter. The antenna has been designed to be placed 200 ft up on a 250 ft tower. What device will you specify that will best interconnect the two different waveguides?

A. Elliptical waveguide flange

B. Elliptical waveguide connector

C. Elliptical wave guide clamp

D. Elliptical wave guide pass through

正確答案: B

問題11

A tapped trunk topology uses ________ cabling to support a DAS.

A. Unbalanced twisted pair

B. Optical fiber

C. Shielded twisted pair

D. Balanced twisted pair

正確答案: B

問題12

Which of the following is NOT a form of signal coupling between two (2) circuits?

A. Capacitive

B. Electromagnetic

C. Inductive

D. Conductive

E. Reactive

正確答案: E

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