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# Blake: MCQ in Fiber-Optic Systems

This is the Multiple Choice Questions in Chapter 25: Fiber-Optic Systems from the book Electronic Communication Systems by Roy Blake. If you are looking for a reviewer in Communications Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

#### Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

MULTIPLE CHOICE

1. FDDI stands for:

a. Fiber Digital Data Interface

b. Fiber Distributed Data Interface

c. Fiber Distribution Delay Interface

d. Frequency-Division Data Interface

Solution:

2. FITL stands for:

a. Fiber In The Loop

b. Fiber Input Timing Loss

c. Frequency Input to The Loop

d. Fiber Input Timing Loop

Solution:

3. FTTC stands for:

a. Fiber Transmission Timing Constraint

b. Fiber Transmission Technology Committee

c. Fiber Telephone Transmission Cable

d. Fiber To The Curb

Solution:

4. SONET stands for:

a. Simple Optical Network

b. Standard Optical Network

c. Synchronous Optical Network

d. none of the above

Solution:

5. DWDM stands for:

a. Digital Wavelength-Division Modulation

b. Dense Wavelength-Division Modulation

c. Double Wavelength-Division Modulation

d. Dense Wavelength-Division Multiplexing

Solution:

6. A Soliton is a:

a. defect in the glass

b. type of particle

c. type of pulse

d. type of optical network

Solution:

7. Adding bits to synchronize one digital signal to another is called:

a. bit stuffing

b. bit-synch

c. SDH

d. WDM

Solution:

8. Power above the minimum required by an optical receiver is called:

a. gain margin

b. system margin

c. excess gain

d. overdrive

Solution:

9. Typically, repeaters are not required for fiber-optic cable lengths up to:

a. 1000 miles

b. 100 miles

c. 100 km

d. 10 km

Solution:

10. In SONET, OC-1 stands for:

a. Optical Carrier level one

b. Optical Coupler unidirectional

c. Optical Channel one

d. Optical Cable type 1

Solution:

11. In SONET, STS stands for:

a. Synchronous Transport Signal

b. Synchronous Transport System

c. Synchronous Transmission Signal

d. Synchronous Transmission System

Solution:

12. A commonly used fiber-based system for LANs is:

a. FDDI

b. high-speed Ethernet

c. gigabit Ethernet

d. all of the above

Solution:

13. The use of solitons on fiber-optic cables is:

a. common

b. experimental

c. obsolete

d. not possible

Solution:

14. OTDR stands for:

a. Optical Time-Delay Response

b. Optical Timing Delay Requirement

c. Optical Time-Domain Reflectometer

d. Optical Time-Division Relay

Solution:

15. Using fiber-optic cable in a telephone system except for the connection to the subscriber’s phone is called:

a. FDDI

b. FTTC

c. FITL

d. SONET

Solution:

COMPLETION

1. FTTC stands for Fiber To The ____________________.

Solution:

2. FITL stands for Fiber In The ____________________.

Solution:

3. SDH stands for Synchronous Data ____________________.

Solution:

4. WDM stands for ____________________-division multiplexing.

Solution:

5. SONET stands for ____________________ Optical Network.

Solution:

6. FDDI stands for Fiber ____________________ Data Interface.

Solution:

7. Optical amplifiers use ____________________-doped glass.

Solution:

8. Optical amplifiers use a ____________________ laser.

Solution:

9. Dense ____________________ allows many different wavelengths of light to share a cable.

Solution:

10. The OC-1 line rate is ____________________ Mbps.

Solution:

11. SONET does not use bit ____________________ to synchronize two digital signals.

Solution:

12. SONET uses a ____________________ to denote the starting position of an information frame.

Solution:

13. FDDI systems use two ____________________ rings to carry signals.

Solution:

14. The two rings of an FDDI system carry data in ____________________ directions.

Solution:

15. Each ____________________ in an FDDI system acts as a regenerative repeater.

Solution:

16. FDDI uses ____________________ mode cables.

Solution:

17. The data rate of an FDDI system is ____________________ bps.

Solution:

18. SONET frames have considerably more ____________________ than do DS frames for information about signal routing and setup.

Solution:

19. The number of bytes in a SONET frame is ____________________.

Solution:

20. The number of bytes in the payload of a SONET frame is ____________________.

Solution:

21. The number of rows in a SONET frame is ____________________.

Solution:

22. The total number of overhead bytes in a SONET frame row is ____________________.

Solution:

23. The number of path overhead bytes in a SONET frame row is ____________________.

Solution:

Solution:

25. In SONET, SPE stands for synchronous payload ____________________.

Solution:

1. What is the bandwidth of a first-order LPF with a rise time of 350 nanoseconds?

Solution:

2. Calculate the total rise time for a fiber-optic system if the transmitter, receiver, and cable each have a rise time of 50 nanoseconds.

Solution:

### Complete List of MCQ in Electronic Communication Systems by Blake

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