Optical Ethernet

This set of Optical Communications Multiple Choice Questions & Answers (MCQs) focuses on Optical Ethernet.

1. What is the exception in the similarities between the optical Ethernet and the Ethernet LAN?
a) Physical layer
b) Data-link layer
c) Refractive index
d) Attenuation mechanism

2. Which technology is used by optical Ethernet?
a) GP-technology
b) HJ-technology
c) IP-technology
d) GB-technology

3. When was the Gigabit Ethernet network developed?
a) 1977
b) 1988
c) 1990
d) 2002

4. Optical Ethernet can operate at the transmission rates as low as ______________
a) 10 M bits per second
b) 40 M bits per second
c) 100 M bits per second
d) 1000 M bits per second

5. How many types of optical Ethernet connections are developed?
a) Two
b) One
c) Four
d) Three

6. Which type of connection can be used as an Ethernet switch?
a) Point-to-point
b) Multipoint-to-multipoint
c) Multipoint-to-point
d) Point-to-multipoint

7. How many aspects are included in the standard Ethernet protocol?
a) One
b) Two
c) Four
d) Three

8. Which of the following is not included in the Ethernet frame format?
a) MAC
b) Preamble
c) Destination address
d) Source address

9. The _______________ provides point-to-point access to a bidirectional single-mode optical fiber.
a) Optical regenerator
b) Optical session
c) Optical distribution node
d) Optical buffer

10. _______________ is the de-multiplexing technique used to split SONET bandwidth into logical groups.
a) SDH
b) Virtual concatenation
c) STS-1
d) Optical breakdown

11. Ethernet switches support multiprotocol label switching.
a) True
b) False

12. Length field in MAC frame ensures that the frame signals stay on the network in order to detect the frame within the correct time limit.
a) True
b) False

13. The ___________ protocol is not used when the Ethernet connections are configured for a full duplex operation.
b) MAC
d) DTH

14. Optical Ethernet provides switching capabilities in layers ________
a) 1 and 2
b) 2 and 3
c) 3 and 4
d) 1 and 4

15. The ______________ approach can provide interconnection among multiple site locations within 40 km range.
a) 3 Gbe
b) 5 Gbe
c) 1 Gbe
d) 10 Gbe

Let’s Learn Quickly!

Optical Ethernet is the physical layer of the Local Area Network (LAN) communications protocol for sending data over fiberoptic cable. It is used for connecting Internet servers and switches inside equipment racks, within data centers, and between metropolitan data centers.

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