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RCDD TEST TDMMV14 EXAM STUDY MATERIALS QUESTION AND ANSWERS (VERIFIED ANSWERS) $13.49   Add to cart

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RCDD TEST TDMMV14 EXAM STUDY MATERIALS QUESTION AND ANSWERS (VERIFIED ANSWERS)

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RCDD TEST TDMMV14 EXAM STUDY MATERIALS QUESTION AND ANSWERS (VERIFIED ANSWERS)

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  • August 15, 2024
  • 32
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • RCDD
  • RCDD
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Estudyr
ESTUDY



RCDD TEST TDMMV14 EXAM STUDY MATERIALS
QUESTION AND ANSWERS (VERIFIED ANSWERS)

1. **Which cables are immune to electromagnetic interference?**

- A) Optical Fiber

- B) Coaxial

- C) Twisted Pair

- D) Shielded Twisted Pair



**ANSWER:** A) Optical Fiber



2. **What term describes signals transmission in both directions simultaneously?**

- A) Half Duplex

- B) Simplex

- C) Full Duplex

- D) Bidirectional



**ANSWER:** C) Full Duplex



3. **What refers to signal interference between cable pairs?**

- A) Crosstalk

- B) Echo

- C) Jitter

- D) Attenuation

,ESTUDY




**ANSWER:** A) Crosstalk



4. **What is the characteristic impedance of Series-6 and Series-11 coaxial cables?**

- A) 50 ohms

- B) 75 ohms

- C) 100 ohms

- D) 150 ohms



**ANSWER:** B) 75 ohms



5. **What is the nominal characteristic impedance of balanced twisted-pair cables at 100 MHz?**

- A) 50 ohms

- B) 60 ohms

- C) 100 ohms

- D) 150 ohms



**ANSWER:** C) 100 ohms



6. **What sets the standard for comparing the conductivity of metallic cabling?**

- A) Copper

- B) Aluminum

- C) Silver

- D) Gold

,ESTUDY


**ANSWER:** A) Copper



7. **Which optical fiber interface has an SFF design and a simplex connector that can be converted to a
duplex?**

- A) LC-style optical fiber connector

- B) SC-style optical fiber connector

- C) ST-style optical fiber connector

- D) MTP-style optical fiber connector



**ANSWER:** A) LC-style optical fiber connector



8. **What are the two most popular core sizes in multimode optical fiber?**

- A) 50 μm and 25 μm

- B) 62.5 μm and 25 μm

- C) 62.5 μm and 50 μm

- D) 100 μm and 75 μm



**ANSWER:** C) 62.5 μm and 50 μm



9. **Which type of optical fiber has a small diameter with a core of 8 μm to 11 μm?**

- A) OS2

- B) OM3

- C) OM4

- D) OM1



**ANSWER:** A) OS2

, ESTUDY




10. **What are the two major classifications of optical fiber?**

- A) Multimode and singlemode

- B) Balanced and unbalanced

- C) Shielded and unshielded

- D) Active and passive



**ANSWER:** A) Multimode and singlemode



11. **There should be a minimum of ____ telecommunications room per floor.**

- A) 2

- B) 1

- C) 3

- D) 4



**ANSWER:** B) 1



12. **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) ≈50 m (164 ft)

- B) ≈75 m (246 ft)

- C) ≈90 m (295 ft)

- D) ≈120 m (394 ft)



**ANSWER:** C) ≈90 m (295 ft)

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