Exam: 642-871
Title: Designing Cisco Network Service Architectures
Ver: 02-14-07
2 Example Questions out of 264 Questions:
QUESTION 1:
How would you define a fault tolerant device?
A. A backup path exists for every link between the client and the server.
B. Key components can be hot-swapped.
C. A backup device exists for every device between the client and the server.
D. Devices in the network can be hot-swapped without interrupting the network operation.
E. The device provides redundant backup within the device for each of its key components.
Answer: E
Explanation:
Device fault tolerance and redundancy: This is often the first level of availability in the network. Fault-tolerant devices provide a high level of reliability. Cisco offers options for redundant supervisor engines and dual power supplies, which provide the first backstop against a network failure.
Reference: Arch student guide p.1-13.
Exam : 642-311
Title : Cisco Optical SONET Exam
Ver : 02.14.07
2 Example Questions out of 60 Questions:
QUESTION 13:
Scrambling of SONET signals is done to _____.
A. prevent the leakage of external fiber emissions
B. provide the optical network with the highest level of security possible
C. assure an even distribution of 1′s and 0′s for extended transmitter life
D. assure an adequate number of transitions for clock recovery at the receiver
E. prevent the receiver from assuming AIS inadvertently when all 0′s are received
Answer: D
Exam : 350-027
Title : CCIE Written: Metro Ethernet
Ver : 02.12.07
2 Example Questions out of 250 Questions:
QUESTION 9:
Which statement is true? Select one.
A. L2TPv2 and L2TPv3 are the same protocol with enhanced features in L2TPv3.
B. L2TPv3 and L2TPv3 are both commonly used for dial-in services.
C. L2TPv2, not L2TPv3, is commonly used for dial-in services.
D. L2TPv3 is used for Layer2 attachment services.
E. None of the above.
Answer: C
Explanation:
l2tpv2 is used normally for dial-in service and remote access see book (Layer 2 VPN Architectures:
chapter2/section3:Layer 2 Tunnel Protocol Version 3 Overview)
Not A: there are some difference between l2tpv2 & l2tpv3 not just extension or enhancement
