Other 642-821 Exams :
642-821 Exam
Building Cisco Remote Access Networks (BCRAN)
- Exam Number/Code : 642-821
- Exam Name : Building Cisco Remote Access Networks (BCRAN)
- Questions and Answers : 244 Q&As
- Update Time: 2011-03-30
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642-821 Exam Description
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Exam : Cisco 642-821
Title : CCNP's Building Cisco Remote Access Networks (BCRAN)
1. Single choice
2. Which two of the following events will occur when the router command backup load 60 5 is used? (Choose two.)
A. The backup link activates when the primary link exceeds 60 percent of bandwidth.
B. The backup link activates when the primary link exceeds 60 kbps.
C. The backup link deactivates when the primary link falls to 5 percent bandwidth.
D. The backup link deactivates when the combined load falls to 5 percent bandwidth.
E. The backup link deactivates when the combined load falls to 5 kbps.
Answer: AD
2. Which two of the following events will occur when the router command backup load 60 5 is used? (Choose two.)
A. The backup link activates when the primary link exceeds 60 percent of bandwidth.
B. The backup link activates when the primary link exceeds 60 kbps.
C. The backup link deactivates when the primary link falls to 5 percent bandwidth.
D. The backup link deactivates when the combined load falls to 5 percent bandwidth.
E. The backup link deactivates when the combined load falls to 5 kbps.
Answer: AD
3. Which three items are correct about the IPSec ESP security protocol? (Choose three.)
A. Authentication is mandatory and the whole packet including the header is authenticated.
B. Authentication is optional and the outer header is not authenticated.
C. IP packet is expanded by transport mode:37 bytes(3DES) or 63 bytes(AES); tunnel mode:57 bytes(3DES) or 83 bytes(AES)
D. IP packet is expanded by: transport mode 24 bytes; tunnel mode 44 bytes
E. The ESP security protocol provides data confidentiality.
F. The ESP security protocol provides no data confidentiality.
Answer: BCE
4. Given the configuration command shown in the exhibit, which statement is true?
A. All incoming TCP packets will be compressed
B. All outgoing TCP packets will be compressed
C. Incoming TCP packets will be compressed only if outgoing TCP packets on the same interface are compressed
D. Outgoing TCP packets will be compressed only if incoming TCP packets on the same interface are compressed
E. All incoming and outgoing TCP packets will be compressed.
Answer: D
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