Computer Networks Questions & Answers – Access Networks MCQ أسئله شبكات بالأجابات الجزء الثالث

Computer Networks Questions & Answers – Access Networks

1. Which of this is not a constituent of residential telephone line?
a) A high-speed downstream channel
b) A medium-speed downstream channel
c) A low-speed downstream channel
d) None of the mentioned

Answer: c
Explanation: The third part is ordinary two way telephone channel.

2. In DSL telco provides these services
a) Wired phone access
b) ISP
c) All of the mentioned
d) None of the mentioned

Answer: c
Explanation: The same company which provides phone connection is also its ISP in DSL.

3. The function of DSLAM is
a) Convert analog signals into digital signals
b) Convert digital signals into analog signals
c) Amplify digital signals
d) None of the mentioned

Answer: a
Explanation: The DSLAM located in telco’s Central Office does this function.

4. The following term is not associted with DSL
a) DSLAM
b) CO
c) Splitter
d) CMTS

Answer: d
Explanation: Cable modem termination system is used in cable internet access.

5. HFC contains
a) Fibre cable
b) Coaxial cable
c) Both Fibre cable and Coaxial cable
d) None of the mentioned

Answer: c
Explanation: Hybrid fiber-coaxial (HFC) is a telecommunications industry term for a broadband network that combines optical fiber and coaxial cable.

6. Choose the statement which is not applicable for cable internet access
a) It is a shared broadcast medium
b) It includes HFCs
c) Cable modem connects home PC to Ethernet port
d) Analog signal is converted to digital signal in DSLAM

Answer: d
Explanation: In cable access analog signal is converted to digital signal by CMTS.

7. Among the optical-distribution architectures that are essentially switched ethernet is
a) AON
b) PON
c) NON
d) None of the mentioned

Answer:a
Explanation: Active optical networks are essentially switched ethernets.

8. StarBand provides
a) FTTH internet access
b) Cable access
c) Telephone access
d) Satellite access

Answer: d
Explanation: StarBand was a two-way satellite broadband Internet service available in the U.S. from 2000–2015.

9. Home Access is provided by
a) DSL
b) FTTP
c) Cable
d) All of the mentioned

Answer: d
Explanation: Home Access is provided by DSL, FTTP, Cable.

10. ONT is connected to splitter using
a) High speed fibre cable
b) HFC
c) Optical cable
d) None of the mentioned

Answer: c
Explanation: ONT stands for Optical Network Terminal. The ONT connects to the Termination Point (TP) with an optical fibre cable

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