RCDD TEST TDMMV14 100 EXAM QUESTIONS 2026
TELECOMMUNICATIONS DISTRIBUTION METHODS MANUAL (TDMM)
|| NETWORK INFRASTRUCTURE, CABLING STANDARDS & DESIGN
PRINCIPLES || VERIFIED QUESTIONS & ACCURATE ANSWERS ||
HIGH-YIELD STUDY GUIDE || COMPLETE TEST BANK || GRADED A+
100 QUESTIONS
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 ANSWER - C) 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 ANSWER - A) 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 ANSWER - A) LC-style optical
fiber connector
TDMM, 14th edition, page 6-77
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 ANSWER - C) 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 ANSWER - A) 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 ANSWER - A) 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 ANSWER - B) 1
Which of these cables is considered immune to electromagnetic interference?
A) Optical Fiber
B) Balanced Twisted-Pair
C) Coaxial - CORRECT ANSWER - A) Optical Fiber
Reference: TDMM, 14th edition, page 2-37
, 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 ANSWER - C) Full Duplex
TDMM, 14th edition, page 1-39
Which of the following terms refers to signal interference between cable pairs?
A) Crosstalk
B) Impedance
C) Delay skew
D) Power Loss - CORRECT ANSWER - A) 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 ANSWER - B) 75
TDMM, 14th edition, page 3-19
TELECOMMUNICATIONS DISTRIBUTION METHODS MANUAL (TDMM)
|| NETWORK INFRASTRUCTURE, CABLING STANDARDS & DESIGN
PRINCIPLES || VERIFIED QUESTIONS & ACCURATE ANSWERS ||
HIGH-YIELD STUDY GUIDE || COMPLETE TEST BANK || GRADED A+
100 QUESTIONS
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 ANSWER - C) 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 ANSWER - A) 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 ANSWER - A) LC-style optical
fiber connector
TDMM, 14th edition, page 6-77
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 ANSWER - C) 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 ANSWER - A) 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 ANSWER - A) 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 ANSWER - B) 1
Which of these cables is considered immune to electromagnetic interference?
A) Optical Fiber
B) Balanced Twisted-Pair
C) Coaxial - CORRECT ANSWER - A) Optical Fiber
Reference: TDMM, 14th edition, page 2-37
, 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 ANSWER - C) Full Duplex
TDMM, 14th edition, page 1-39
Which of the following terms refers to signal interference between cable pairs?
A) Crosstalk
B) Impedance
C) Delay skew
D) Power Loss - CORRECT ANSWER - A) 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 ANSWER - B) 75
TDMM, 14th edition, page 3-19
