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2024 RCDD TDMMV14 TEST EXAM WITH CORRECT ANSWERS
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2024 RCDD TDMMV14 TEST EXAM WITH CORRECT ANSWERS
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2024 RCDD TDMMV14 TEST EXAMWITH CORRECT ANSWERS
Which of the following terms describes the transmission of signals in both
directions at the
same time?
A) Simplex
B) Half-duplex
C) Full duplex - CORRECT-ANSWERSC) Full Duplex
TDMM, 14th edition, page 1-39
Which of the following fire ratings indicates that time period
(expressed in hours) that an assembly can resist the passage of a
flame?
A) F
B) L
C) T
D) W - CORRECT-ANSWERSA) F
TDMM, 14th edition, Page 7-13, Table 7.3
Which of these cables is considered immune to electromagnetic
interference?
A) Optical Fiber
B) Balanced Twisted-Pair
C) Coaxial - CORRECT-ANSWERSA) Optical Fiber
Reference: TDMM, 14th edition, page 2-37
Which of the following terms refers to the process of limiting fire
and smoke using fire-resistive barriers?
A) Compartmentation
B) Suppression
C) Detection
D) Prevention - CORRECT-ANSWERSA) Compartmentation
,TDMM, 14th edition, Page 7-13, Table 7.3
Which of the following are recognized for use in backbone
cabling? Select all that apply.
A) Category 3/Class C (specified up to 16 MHz)
B) Category 5e/Class D (specified up to 100 MHz)
C) Category 6/Class E (specified up to 250 MHz)
D) Category 7/Class F (specified up to 600 MHz)
E) Category 8.1/Class I (specified up to 2000 MHz)
F) A & B & D & E
G) B & C & D
H) C & D & E
I) A & B & C - CORRECT-ANSWERSI) A & B & C
A) Category 3/Class C (specified up to 16 MHz)
B) Category 5e/Class D (specified up to 100 MHz)
C) Category 6/Class E (specified up to 250 MHz)
TDMM, 14th edition, Page 1-91
Which of the following are legacy and not recognized for new
installations? Select all that apply.
A) OM1
B) OM2
C) OM3
D) OM4
E) OM5
F) A & B
G) D & E
H) A & B & C - CORRECT-ANSWERSF) A & B
A) OM1
B) OM2
TDMM, 14th edition, Page 1-91
Sleeves should be located a minimum of __________ from the wall
or between adjacent sleeves.
A) ≈25.4 mm (1 in)
B) ≈53 mm (2 in)
C) ≈101.6 mm (4 in)
D) ≈152.4 mm (6 in) - CORRECT-ANSWERSC) ≈101.6 mm (4 in)
,TDMM, 14th edition, Page 4-45
Which of the following terms refers to signal interference between cable
pairs?
A) Crosstalk
B) Impedance
C) Delay skew
D) Power Loss - CORRECT-ANSWERSA) Crosstalk
TDMM, 14th edition, page 1-54
Series-6 and Series-11 coaxial cables have a characteristic impedance of ___
ohms.
A) 25
B) 75
C) 100
D) 150 - CORRECT-ANSWERSB) 75
TDMM, 14th edition, page 6-24
Balanced twisted-pair cables have a nominal characteristic impedance of
________ ohms at
100 MHz.
A) 25
B) 75
C) 100
D) 150 - CORRECT-ANSWERSC) 100
TDMM, 14th edition, page 1-57
Which of the following sets the standard for comparing the conductivity of
metallic
cabling?
A) Copper
B) Gold
C) Silver
D) Aluminum - CORRECT-ANSWERSA) Copper
TDMM, 14th edition, page 1-3, Table 1.1
, Which optical fiber interface features an SFF design and has a simplex
connector that can be converted to a duplex using a clip?
A) LC-style optical fiber connector
B) ST-style optical fiber plugs
C) SC-style optical fiber plugs - CORRECT-ANSWERSA) LC-style optical fiber
connector
TDMM, 14th edition, page 6-81
What are the two most popular sized cores in multimode optical fiber?
A) 8 μm to 11 μm
B) 50 μm to 125 μm
C) 62.5 μm and 50 μm
D) 100 μm and 250 μm - CORRECT-ANSWERSC) 62.5 μm and 50 μm
TDMM, 14th edition, page 6-16
Which type of optical fiber has a small diameter featuring a core of 8 μm to
11 μm?
A) OS2
B) OM3
C) OM4
D) OM5 - CORRECT-ANSWERSA) OS2
TDMM, 14th edition, page 6-14
What are the two major classifications of optical fiber?
A) Multimode and singlemode
B) LED and VSCEL
C) Inside plant (ISP) and outside plant (OSP)
D) Backbone and horizontal - CORRECT-ANSWERSA) Multimode and
singlemode
TDMM, 14th edition, page 1-98
There should be a minimum of ____ telecommunications room per floor.
A) No minimum is required
B) 1
C) 2
D) 3 - CORRECT-ANSWERSB) 1
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