RCDD Practice Exams and Training Solutions for Certifications
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NEW QUESTION # 190
If you are using a building automation system (BAS) protocol operating on RF media at 19,200 b/s in the 868 MHz band, which protocol are you using?
- A. LonMark
- B. Modicon
- C. Lon Talk
- D. MODBUS
- E. European installation bus
Answer: E
NEW QUESTION # 191
You are designing a strobe visual notification system for a fire alarm system. You have a hallway that is 4.6 m (15 ft) wide and 100 m (328 ft) long. How many strobes should be placed in the hallway?
- A. One
- B. Four
- C. Five
- D. Two
- E. Three
Answer: B
NEW QUESTION # 192
A star intrabuilding backbone is where the HC is connected directly to the buildings MC.
- A. True
- B. False
Answer: A
NEW QUESTION # 193
A furniture cluster with 26 requires a MINIMUM of how many multiuser telecommunications outlet assembly (MUTOA)?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: D
NEW QUESTION # 194
Using the "pathway design" for horizontal cable distribution, how many cable runs are placed to serve 15 individual?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 195
What is the minimum clear working space between equipment and cross-connect fields in a TR?
- A. 3 ft.
- B. 2 ft.
- C. 4 ft.
- D. 5 ft.
Answer: A
NEW QUESTION # 196
What is the expected lumenance value, in watts, of a 200 watt fluorescent lamp after three years?
- A. 140 watts
- B. 180 watts
- C. 160 watts
- D. 200 watts
- E. 120 watts
Answer: A
NEW QUESTION # 197
Backbone sleeves and slots must not obstruct wall terminating space in TR's.
- A. True
- B. False
Answer: A
NEW QUESTION # 198
What is the MINIMUM distance from the edge of a pool or other water hazards for a weatherproof enclosure?
- A. 1 m (3 ft)
- B. 2 m (7 ft)
- C. 6 m (20 ft)
- D. 10 m (30 ft)
- E. 4 m (13 ft)
Answer: C
NEW QUESTION # 199
An existing ceiling raceway system has 115,000 sq mm (177 sq in) of cross-sectional area available for distribution of cable runs. How many can be served by the existing system?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: C
NEW QUESTION # 200
CORRECT TEXT
________is the total opposition (resistance, capacitance, and inductance) a circuit, cable, or component offers to the flow of alternating current.
A unit of measure expressed in ohms.
Answer:
Explanation:
Impedance
NEW QUESTION # 201
You have been selected to recommend a solution to increase response time and add fault tolerance to a bank of servers. Your budget is limited and the client needs a solution as soon as possible (ASAP). Which of the following options should be considered with the short time frame and limited budget?
- A. Device clustering
- B. Off site mass storage
- C. Link aggregation
- D. Backup network switching devices
- E. Installation of RAID devices
Answer: A
NEW QUESTION # 202
Select the appropriate task to complete section 2.2 of the work breakdown structure (WBS) below:
2 Technician
2.1 Install cabling
2.2 __________
2.3 Activate wireless
- A. Confirm wireless coverage
- B. Install pathway for cabling
- C. Clean work area
- D. Install access point
Answer: D
NEW QUESTION # 203
A rapid increase in voltage with a duration of half a cycle best describes a(n):
- A. Transient
- B. Frequency variation
- C. Overvoltage
- D. Swell
Answer: A
NEW QUESTION # 204
An installation crew is pulling an optical fiber cable into a riser. The cable has an outside diameter of 25 mm (1 in). As the cable is being pulled off the reel and through a pulley into the riser, you must verify that the minimum bend radius for the cable being pulled is observed. The pulley must be sized at a MINIMUM of:
- A. 508 mm (20 in)
- B. 381 mm (15 in)
- C. 762 mm (30 in)
- D. 635 mm (25 in)
- E. 254 mm (10 in)
Answer: B
NEW QUESTION # 205
In addition to voice and data services, an equipment room (ER) can be designed to include all of the following EXCEPT:
- A. Life safety facilities
- B. General premise monitoring and security systems
- C. Building electrical service monitoring and controls
- D. Audio and paging equipment
- E. CATV and CCTV facilities
Answer: C
Explanation:
Topic 8, Firestopping
NEW QUESTION # 206
The recommended MINIMUM number of conduits connecting two located on the same floor is:
- A. One; 75 mm (trade size 3)
- B. One; 100 mm (trade size 4)
- C. Two; 75 mm (trade size 3)
- D. Two; 100 mm (trade size 4)
Answer: A
NEW QUESTION # 207
What is the MINIMUM number of outside building terminal pedestals required to serve a single story office, or office warehouse structure that has ten 18.3 m x 24 m (60 ft x 80 ft) units and the total building length is 183 m (600 ft)?
- A. One
- B. Ten
- C. Four
- D. Six
- E. Two
Answer: E
NEW QUESTION # 208
All entrance conduits should be equipped with a plastic or nylon line with a MINIMUM test rating of _________ pulling tension.
- A. 68 kg (150 lbs)
- B. 22.7 kg (50 lbs)
- C. 90 kg (200 lbs)
- D. 45.4 kg (100 lbs)
- E. 113 kg (250 lbs)
Answer: C
NEW QUESTION # 209
Which active DAS component is responsible for coupling input signals from donor systems?
- A. Transceiver
- B. Receiver
- C. Bidirectional amplifier
- D. Coupling antenna
Answer: C
NEW QUESTION # 210
What is the recommended MINIMUM separation of unshielded twisted-pair (UTP) cables from fluorescent light fixtures?
- A. 77 mm (3 in)
- B. 483 mm (19 in)
- C. 324 mm (12.75 in)
- D. 30 mm (5.12 in)
- E. 203 mm (8 in)
Answer: D
Explanation:
Topic 3, ITS Cables and Connecting Hardware
NEW QUESTION # 211
The conversion of an analog speech signal to a pulse code modulation (PCM) digital signal involves all of the following steps EXCEPT:
- A. Low pass filtering
- B. Periodic sampling
- C. Companding
- D. Amplitude modulation
- E. Quantizing
Answer: D
NEW QUESTION # 212
Exhibit:
A pay telephone using coins needs to be installed in a public area. In the specifications, it is required that the telephone shall meet the ADA (Americans with Disability Act) requirement for side reach using a wheelchair. What will be the maximum reachable height or the value of "X"?
- A. 760 mm (30 in)
- B. 1370 mm (54 in)
- C. 1170 mm (46 in)
- D. 1220 mm (48 in)
- E. 864 mm (34 in)
Answer: B
NEW QUESTION # 213
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