RCDD Test TDMMV14 (Questions taken from Review Courses DD101, DD102, and the BICSI RCDD Study Guide) Questions Answered Correctly To Score A+

RCDD Test TDMMV14 (Questions taken from Review Courses DD101, DD102, and the BICSI RCDD Study Guide) Questions Answered Correctly To Score A+ 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? 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 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 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 B) 1 C) 2 D) 3 B) 1 TDMM, 14th edition, page 3-19 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 ___________. A) ≈15 m (50 ft) B) ≈30.5 m (100 ft) C) ≈45.8 m (150 ft) D) ≈90 m (295 ft) D) ≈90 m (295 ft) TDMM, 14th edition, page 3-21 What is the maximum area that a single telecommunications enclosure (TE) can cover? A) ≈334 m² (3600 ft²) B) ≈465 m² (5000 ft²) C) ≈743 m² (8000 ft²) D) ≈929 m² (10,000 ft²) A) ≈334 m² (3600 ft²) TDMM, 14th edition, page 3-27 Which of the following connects a telecommunications room (TR) to the work area? A) Horizontal cabling B) Backbone cabling C) Outside plant cabling A) Horizontal cabling TDMM, 14th edition, page 5-5 What is the minimum amount of space that should be allocated for the equipment room(ER)? A) ≈1.83 m (6 ft) by ≈2.6 m (8.5 ft) B) ≈2.4 m (8 ft) by ≈2.74 m (9 ft) C) ≈3 m by ≈4.9 m (10 ft by 16 ft) D) ≈3.7 m (12 ft) and ≈4.6 m (15 ft) C) ≈3 m by ≈4.9 m (10 ft by 16 ft) TDMM, 14th edition, page 12-18 The cable transitioning from the outside into the building can transition no more than ______ inside the building. A) ≈6.1 m (20 ft) B) ≈15 m (50 ft) C) ≈30.5 m (100 ft) D) ≈45.8 m (150 ft) B) ≈15 m (50 ft) TDMM, 14th edition, page 12-18 Which of the following is an environmentally controlled centralized space for telecommunications equipment that usually houses a main or intermediate cross-connect? A) Equipment room (ER) B) Entrance facility (EF) C) Telecommunications room (TR) D) Telecommunications enclosure (TE) A) Equipment room (ER) TDMM, 14th edition, page 4-1, Table 4.1 Which color represents horizontal cable? A) Blue B) Purple C) Yellow D) Brown A) Blue TDMM, 14th edition, page 10-22, Table 10.3 What distribution system provides a connection between telecommunications spaces? A) Backbone distribution system B) Horizontal distribution system C) Outside plant distribution system A) Backbone distribution system TDMM, 14th edition, page 4-1 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)? A) Star B) Ring C) Hierarchical star D) Logical ring C) Hierarchical star TDMM, 14th edition, page 4-32 Which layer of the OSI Reference Model is responsible for intranetwork data transfer? A) Layer 1, Physical Services B) Layer 2, Data Link Services C) Layer 3, Network Services D) Layer 4, Transport Services B) Layer 2, Data Link Services TDMM, 14th edition, page 15-5 Which layer of the OSI Reference Model is responsible for physical services? A) Layer 1, Physical Services B) Layer 2, Data Link Services C) Layer 3, Network Services D) Layer 4, Transport Services A) Layer 1, Physical Services TDMM, 14th edition, page 15-5 Which of the following covers an area generally associated with an individual workspace? A) PAN B) CAN C) MAN D) WAN