20080824 CCNA Exam Braindumps
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1. When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined?
A: It is supplied by the CSU/DSU.
B: It is supplied by the far end router.
C: It is determined by the clock rate command.
D: It is supplied by the Layer 1 bit stream timing.
Correct Answers: A
2. Acknowledgements, sequencing, and flow control are characteristics of which OSI layer?
A: Layer 2
B: Layer 3
C: Layer 4
D: Layer 5
E: Layer 6
F: Layer 7
Correct Answers: C
3. Which of the following are types of flow control? (Choose three.)
A: buffering
B: cut-through
C: windowing
D: congestion avoidance
E: load balancing
Correct Answers: A, C, D
4. Which protocol provides a method of sharing VLAN configuration information between switches?
A: VTP
B: STP
C: ISL
D: 802.1Q
E: VLSM
Correct Answers: A
5. Which two devices can interfere with the operation of a wireless network because they operate on similar frequencies? (Choose two.)
A: copier
B: microwave oven
C: toaster
D: cordless phone
E: IP phone
F: AM radio
Correct Answers: B, D
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