RCDD Test TDMMV14 LATEST UPDATE ALREADY RATED
Which cables are immune to electromagnetic interference? -(ANSWER) A) Optical Fiber
What term describes signals transmission in both directions simultaneously? -(ANSWER) C)
Full Duplex
What refers to signal interference between cable pairs? -(ANSWER) A) Crosstalk
What is the characteristic impedance of Series-6 and Series-11 coaxial cables? -(ANSWER) B)
75 ohms
What is the nominal characteristic impedance of balanced twisted-pair cables at 100 MHz? -
(ANSWER) C) 100 ohms
What sets the standard for comparing the conductivity of metallic cabling? -(ANSWER) A)
Copper
Which optical fiber interface has an SFF design and a simplex connector that can be converted to
a duplex? -(ANSWER) A) LC-style optical fiber connector
What are the two most popular core sizes in multimode optical fiber? -(ANSWER) C) 62.5 μm
and 50 μm
Which type of optical fiber has a small diameter with a core of 8 μm to 11 μm? -(ANSWER) A)
OS2
What are the two major classifications of optical fiber? -(ANSWER) A) Multimode and
singlemode
There should be a minimum of ____ telecommunications room per floor. -(ANSWER) B) 1
Multiple telecommunications rooms (TRs) are required if the cable length between the horizontal
cross-connect/floor distributor (HC/FD) and the telecommunications outlet location, including
slack, exceeds ___________. -(ANSWER) D) ≈90 m (295 ft)
What is the maximum area that a single telecommunications enclosure (TE) can cover? -
(ANSWER) A) ≈334 m² (3600 ft²)
Which of the following connects a telecommunications room (TR) to the work area? -
(ANSWER) A) Horizontal cabling
What is the minimum amount of space that should be allocated for the equipment room (ER)? -
(ANSWER) C) ≈3 m by ≈4.9 m (10 ft by 16 ft)
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, The cable transitioning from the outside into the building can transition no more than ______
inside the building. -(ANSWER) B) ≈15 m (50 ft)
Which of the following is an environmentally controlled centralized space for
telecommunications equipment that usually houses a main or intermediate cross-connect? -
(ANSWER) A) Equipment room (ER)
Which color represents horizontal cable? -(ANSWER) A) Blue
What distribution system provides a connection between telecommunications spaces? -
(ANSWER) A) Backbone distribution system
Which topology can typically be seen in a campus system where some or all of the horizontal
cross-connects/floor distributors (HCs/FDs) are connected to an intermediate cross-
connect/building distributor (IC/BD), which in turn, is connected to the main cross-
connect/campus distributor (MC/CD)? -(ANSWER) C) Hierarchical star
Which layer of the OSI Reference Model is responsible for intranetwork data transfer? -
(ANSWER) Layer 2, Data Link Services
Which layer of the OSI Reference Model is responsible for physical services? -(ANSWER)
Layer 1, Physical Services
Which covers an area generally associated with an individual workspace? -(ANSWER) PAN
In a DAS system, which equipment does not require external power input? -(ANSWER) Passive
distribution equipment
What is abrupt change in direction of a wave front at the interface between two dissimilar media?
-(ANSWER) Refraction
Which property affects how sound is perceived? -(ANSWER) Amplitude
Which factor should be used to determine the seating layouts of a communications space? -
(ANSWER) AV sightlines
What are the three elements of mitigation for a security program? -(ANSWER) Architectural,
operational, and electronic
Which project document summarizes corrections that a contractor must make prior to accepting
the work as complete? -(ANSWER) Punch list
Which aspect of project management involves breaking one large project into smaller projects or
managing multiple small projects as one large project? -(ANSWER) Integration management
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Which cables are immune to electromagnetic interference? -(ANSWER) A) Optical Fiber
What term describes signals transmission in both directions simultaneously? -(ANSWER) C)
Full Duplex
What refers to signal interference between cable pairs? -(ANSWER) A) Crosstalk
What is the characteristic impedance of Series-6 and Series-11 coaxial cables? -(ANSWER) B)
75 ohms
What is the nominal characteristic impedance of balanced twisted-pair cables at 100 MHz? -
(ANSWER) C) 100 ohms
What sets the standard for comparing the conductivity of metallic cabling? -(ANSWER) A)
Copper
Which optical fiber interface has an SFF design and a simplex connector that can be converted to
a duplex? -(ANSWER) A) LC-style optical fiber connector
What are the two most popular core sizes in multimode optical fiber? -(ANSWER) C) 62.5 μm
and 50 μm
Which type of optical fiber has a small diameter with a core of 8 μm to 11 μm? -(ANSWER) A)
OS2
What are the two major classifications of optical fiber? -(ANSWER) A) Multimode and
singlemode
There should be a minimum of ____ telecommunications room per floor. -(ANSWER) B) 1
Multiple telecommunications rooms (TRs) are required if the cable length between the horizontal
cross-connect/floor distributor (HC/FD) and the telecommunications outlet location, including
slack, exceeds ___________. -(ANSWER) D) ≈90 m (295 ft)
What is the maximum area that a single telecommunications enclosure (TE) can cover? -
(ANSWER) A) ≈334 m² (3600 ft²)
Which of the following connects a telecommunications room (TR) to the work area? -
(ANSWER) A) Horizontal cabling
What is the minimum amount of space that should be allocated for the equipment room (ER)? -
(ANSWER) C) ≈3 m by ≈4.9 m (10 ft by 16 ft)
Page | 1
, The cable transitioning from the outside into the building can transition no more than ______
inside the building. -(ANSWER) B) ≈15 m (50 ft)
Which of the following is an environmentally controlled centralized space for
telecommunications equipment that usually houses a main or intermediate cross-connect? -
(ANSWER) A) Equipment room (ER)
Which color represents horizontal cable? -(ANSWER) A) Blue
What distribution system provides a connection between telecommunications spaces? -
(ANSWER) A) Backbone distribution system
Which topology can typically be seen in a campus system where some or all of the horizontal
cross-connects/floor distributors (HCs/FDs) are connected to an intermediate cross-
connect/building distributor (IC/BD), which in turn, is connected to the main cross-
connect/campus distributor (MC/CD)? -(ANSWER) C) Hierarchical star
Which layer of the OSI Reference Model is responsible for intranetwork data transfer? -
(ANSWER) Layer 2, Data Link Services
Which layer of the OSI Reference Model is responsible for physical services? -(ANSWER)
Layer 1, Physical Services
Which covers an area generally associated with an individual workspace? -(ANSWER) PAN
In a DAS system, which equipment does not require external power input? -(ANSWER) Passive
distribution equipment
What is abrupt change in direction of a wave front at the interface between two dissimilar media?
-(ANSWER) Refraction
Which property affects how sound is perceived? -(ANSWER) Amplitude
Which factor should be used to determine the seating layouts of a communications space? -
(ANSWER) AV sightlines
What are the three elements of mitigation for a security program? -(ANSWER) Architectural,
operational, and electronic
Which project document summarizes corrections that a contractor must make prior to accepting
the work as complete? -(ANSWER) Punch list
Which aspect of project management involves breaking one large project into smaller projects or
managing multiple small projects as one large project? -(ANSWER) Integration management
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