RCDD Practice Exam Tests Latest Updated on Sep-2021
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NEW QUESTION 195
If you have a 30 cm (12 in) wide data tray, what does ANSI/TIA 569-B recommend be the maximum pathway fill cross sectional area assuming a MAXIMUM pathway depth of 15 cm (6 in)?
- A. 225 sq cm (36 sq in)
- B. 450 sq cm (72 sq in)
- C. 112.5 sq cm (18 sq in)
- D. 300 sq cm (48 sq in)
- E. 150 sq cm (24 sq in)
Answer: A
NEW QUESTION 196
ANSI/TIA/EIA-758 is the standard for which of the following?
- A. Residential Telecommunications Cabling Standard.
- B. Customer-Owned Outside Plant Telecommunications Cabling Standard.
- C. Technical Specifications for 100 Ohm Screened Twisted Pair Cabling.
- D. Propagation Delay and Delay Skew Specifications for 100-Ohm 4-Pair Cable.
Answer: B
NEW QUESTION 197
Exhibit: This diagram illustrates an example of a:
- A. Multi level campus design ready for an easy separation into 3 single level designs
- B. Poorly designed single level campus backbone design
- C. Multiple hierarchical level campus backbone design
- D. Well laid out single level campus backbone design
- E. Multiple one level backbone designs
Answer: C
NEW QUESTION 198
The required minimum clearance of telecommunication cable above street and driveway surfaces is which of the following?
- A. 23.5 feet vertically
- B. 18 feet vertically
- C. 10 feet vertically
- D. 15.5 feet vertically
Answer: D
NEW QUESTION 199
What is the highest typical ambient noise level where audio paging becomes unintelligible?
- A. 85 dB
- B. 105 dB
- C. 75 dB
- D. 95 dB
Answer: D
NEW QUESTION 200
You are designing a cabling system for a chemical plant. What type of device is needed to prevent the spread of fire along the cable other than the barrier penetrations?
- A. Fire wall
- B. Fire break
- C. Fire shield
- D. Fire stop
Answer: B
NEW QUESTION 201
NRZ is the acronym for which of the following?
- A. Normal return zone.
- B. Network registration zone.
- C. Nominal return zone.
- D. Non-return to zero.
Answer: D
NEW QUESTION 202
SRB can be treated with household bleach.
- A. True
- B. False
Answer: A
NEW QUESTION 203
Which of the following is the Standard for the Installation of Lightning Protection Systems?
- A. NFPA-75
- B. NFPA-72
- C. NFPA-780
- D. NFPA-70
Answer: C
NEW QUESTION 204
The MINIMUM separation distance between grounded metal telecommunications pathway and unshielded power lines is:
- A. 300 mm (12 in)
- B. 150 mm (6 in)
- C. 610 mm (24 in)
- D. 75 mm (3 in)
- E. 1220 mm (48 in)
Answer: A
NEW QUESTION 205
You are designing a four story retail mall and multiple sound systems within it. Which system should you design to support general music programming within common retail areas?
- A. Life safety
- B. Sound reinforcement and playback
- C. Distributed paging
- D. Sound masking
Answer: B
NEW QUESTION 206
The MINIMUM number of antennas needed to create a DAS is:
- A. Five
- B. Seven
- C. Three
- D. One
Answer: D
NEW QUESTION 207
Class ________ administration provides for the telecommunications infrastructure administration needs of a single building, or of a tenant served by a single or multiple. It also includes administration for backbone cabling, systems, and.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 208
Exhibit:
In this future marina layout, what would be the pre-cabling guideline to follow for the terminal A?
- A. For security, each run should be terminated in the patch panel/ cross-connect at the dockmaster or marina office.
- B. Pre-cable each boat slip during construction.
- C. Place distribution cable onto the dock and terminate in a suitable cabinet or enclosure. Run
service drop to each boat slip. - D. Provide one or two pair cables from the boat slips to a distribution terminal on the closest point of land.
Answer: C
NEW QUESTION 209
Utility columns may be attached to the transverse rails of a suspended ceiling only if these rails are securely anchored to the main ceiling support channel.
- A. True
- B. False
Answer: A
NEW QUESTION 210
What type of facility requires a building automation system (BAS) device to be located every 5 sq m (50 sq ft)?
- A. Hospital
- B. Hotel guest room
- C. Education classroom
- D. Factory
- E. Mechanical room
Answer: E
NEW QUESTION 211
Which of the following is NOT true about consolidation points?
- A. They allow horizontal cables to be extended into work area pathways.
- B. The maximum length of cable from the consolidation point (CP) to the outlet varies by media type.
- C. They are to be terminated on separate connectors for each individual user.
- D. They are not to be used for direct connections to active equipment.
Answer: B
NEW QUESTION 212
An ER cannot be used as an entrance facility.
- A. False
- B. True
Answer: A
NEW QUESTION 213
If the usable floor space is unknown, then deduct ________ percent of the total area available to estimate the usable area.
- A. Five
- B. Ten
- C. Twenty
- D. Twenty five
- E. Fifteen
Answer: C
NEW QUESTION 214
When designing a backbone distribution system, you are asked to include a combination of media types. Your choice of media types include:
- A. Copper and fiber only
- B. Fiber and coaxial cable only
- C. Wireless and coaxial cable only
- D. Fiber and wireless only
- E. Any combination of copper, fiber, and wireless
Answer: E
NEW QUESTION 215
In the customer's environment, an ITS designer should avoid the need for optical fiber field splicing by:
- A. Installing a continuous length of cable
- B. Using pre-connectorized cables
- C. Using oversized cable trays
- D. Using multiple pull boxes
- E. Installing oversized inner duct
Answer: A
NEW QUESTION 216
Color codes for cross-connections fields have been used for many years. Which color is used to identify campus backbone?
- A. Blue
- B. White
- C. Purple
- D. Green
- E. Brown
Answer: E
NEW QUESTION 217
Within a heating ventilation and air conditioning automatic control system, what do the letters DDC stand for?
- A. Diverse duct center
- B. Differential diffuser control
- C. Direct drive cable
- D. Direct digital control
- E. Dual division charger
Answer: D
NEW QUESTION 218
Which is NOT true about conformance quality?
- A. It focuses on physical quality.
- B. It includes inspections of work.
- C. It requires work force training.
- D. It follows the principle of plan, do, check, and act.
- E. It involves evaluating customer satisfaction.
Answer: E
NEW QUESTION 219
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