Computer Access Networks Question-Answer

Q.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. An ultra-high speed downstream channel

Ans : A low-speed downstream channel


Q.2 DSL telcos provide which of the following services?

       A. Wired phone access

       B. Wired phone access and ISP

       C. ISP

       D. Network routing and ISP

Ans : Wired phone access and ISP


Q.3 The function of DSLAM is to __________.

       A. Convert analog signals into digital signals

       B. Convert analog signals into digital signals

       C. Amplify digital signals

       D. De-amplify digital signals

Ans : Convert analog signals into digital signals


Q.4 Which of the following terms is not associated with DSL?

       A. DSLAM

       B. CO

       C. Splitter

       D. CMTS

Ans : CMTS


Q.5 HFC contains _______.

       A. Fibre cable

       B. Coaxial cable

       C. Twisted Pair Cable

       D. A combination of Fibre cable and Coaxial cable

Ans : A combination of Fibre cable and Coaxial cable


Q.6 Among the optical-distribution architectures that are essentially switched ethernet is __________.

       A. AON

       B. PON

       C. MOM

       D. NON

Ans : AON


Q.7 Which of the following statements 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

Ans : Analog signal is converted to digital signal in DSLAM


Q.8 StarBand provides __________.

       A. FTTH internet access

       B. Cable access

       C. Telephone access

       D. Satellite access

Ans : Satellite access


Q.9 Home Access is provided by __________.

       A. DSL

       B. FTTP

       C. Cable

       D. All of the above

Ans : All of the above


Q.10 ONT is connected to splitter using _________.

       A. High speed fibre cable

       B. HFC

       C. Optical cable

       D. Twisted pair cable

Ans : Optical cable


Q.11 Which of the following factors affect transmission rate in DSL?

       A. The gauge of the twisted-pair line

       B. Degree of electrical interfernece

       C. Shadow fading

       D. The gauge of the twisted-pair line and degree of electrical interference

Ans : The gauge of the twisted-pair line and degree of electrical interference


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