RCDD Test TDMMV14 Exam 2025 Questions and Answers 100% pas

RCDD Test TDMMV14 Exam 2025
Questions and Answers 100% pass


Which of these cables is considered immune to electromagnetic interference?




A) Optical Fiber

B) Balanced Twisted-Pair

C) Coaxial - ✔✔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 - ✔✔C) Full Duplex




TDMM, 14th edition, page 1-39

Which of the following terms refers to signal interference between cable pairs?



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,A) Crosstalk

B) Impedance

C) Delay skew

D) Power Loss - ✔✔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 - ✔✔B) 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 - ✔✔C) 100



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,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 - ✔✔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 - ✔✔A) 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




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, C) 62.5 μm and 50 μm

D) 100 μm and 250 μm - ✔✔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 - ✔✔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 - ✔✔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



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