Wireless LANs - MCQs with Answers

Wireless LANs - MCQs with Answers

1. Which label hierarchy exhibits the zero value of S-bit except the last bit with value equal to unity?

a. Label Push
b. Label Pop
c. Label Stack
d. LSP hierarchy

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2. Which scheme/ strategy is suitable to establish the communication between the access point (AP) and the infrastructure of LANs?

a. Wired
b. Wireless
c. Both a & b
d. Cannot Predict

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3. What conclusion can be drawn if the collision is detected in CSMA/CD algorithm while controlling the access in wireless LANs?

a. Non-reception of frame & necessity of retransmission
b. No necessity of working in duplex mode for the host
c. No necessity to prevent the signal fading
d. All of the above

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4. Which among the following represents the building blocks of wireless LANs?

a. BSS
b. ESS
c. Both a & b
d. None of the above

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5. Which method of multiple secondary communication in TDMA is acquired/adopted by bluetooth especially where data integrity becomes more crucial than avoiding latency?

a. Synchronous Connection-Oriented (SCO) Link
b. Asynchronous Connectionless Link (ACL)
c. Both a & b
d. None of the above

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6. Which protocol performs the functional operation of breaking the frames into several cells in an Asynchronous Transfer Mode (ATM)?

a. Physical Layer
b. ATM Layer
c. ATM Adaptation Layer
d. All of the above

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7. Which among the below illustrations represents the variable bit rate type of ATM?

a. Telephony speech without silencer
b. Compressed voice/ video with silence suppression
c. Equivalent sharing of bandwidth between the links
d. All of the above

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8. What is/are the functions of Segmentation and Reassembly (SAR) sublayer in an ATM adaptation layer?

A. Provision of an interface to the application
B. Addition of headers and trailers to data units for cell payload formation
C. Smoothening of an incoming traffic
D. Detection of lost and misinserted cells

a. A ,B & C
b. B,C & D
c. Only B
d. Only C

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9. Which among the AAL protocol/s allow/s the CS checksum of about 32 bits?

A. AAL-1
B. AAL-2
C. AAL-3/4
D. AAL-5

a. A & B
b. C & D
c. Only C
d. Only D

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10. Match the MPLS routers with associated functions:

A. Edge LSR ----------------- 1) Reception of traffic from non-MPLS router
B. Ingress LSR -------------- 2) Interfacing to a traditional router
C. Engress LSR ------------- 3) Sending the traffic to non-MPLS router

a. A- 1, B- 2, C- 3
b. A- 1, B -3, C- 2
c. A- 2, B -1, C- 3
d. A- 3, B -2, C- 1

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