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VUE/Prometric Code: 642-825
Exam: Implementing Secure Converged Wide Area Networks
Q&A:226 Q&As
업그레이트:2010-05-15
VPNs? (Choose three.)
A. allows dynamic routing over the tunnel
B. supports multi-protocol (non-IP) traffic over the tunnel
C. reduces IPsec headers overhead since tunnel mode is used
D. simplifies the ACL used in the crypto map
E. uses Virtual Tunnel Interface (VTI) to simplify the IPsec VPN configuration
Answer: ABD
8. Which three IPsec VPN statements are true? (Choose three.)
A. IKE keepalives are unidirectional and sent every ten seconds.
B. IKE uses the Diffie-Hellman algorithm to generate symmetrical keys to be used by IPsec peers.
C. IPsec uses the Encapsulating Security Protocol (ESP) or the Authentication Header (AH) protocol for
exchanging keys.
D. Main mode is the method used for the IKE phase two security association negotiations.
E. Quick mode is the method used for the IKE phase one security association negotiations.
F. To establish IKE SA, main mode utilizes six packets while aggressive mode utilizes only three packets.
Answer: ABF
9. Which three statements are true about Cisco IOS Firewall? (Choose three.)
A. It can be configured to block Java traffic.
B. It can be configured to detect and prevent SYN-flooding denial-of-service (DoS) network attacks.
C. It can only examine network layer and transport layer information.
D. It can only examine transport layer and application layer information.
E. The inspection rules can be used to set timeout values for specified protocols.
Answer: ABE
10. Which two statements about common network attacks are true? (Choose two.)
A. Access attacks can consist of password attacks, trust exploitation, port redirection, and
man-in-the-middle attacks.
B. Access attacks can consist of password attacks, ping sweeps, port scans, and man-in-the-middle
attacks.
C. Access attacks can consist of packet sniffers, ping sweeps, port scans, and man-in-the-middle attacks.
D. Reconnaissance attacks can consist of password attacks, trust exploitation, port redirection and
Internet information queries.
E. Reconnaissance attacks can consist of packet sniffers, port scans, ping sweeps, and Internet
information queries.
F. Reconnaissance attacks can consist of ping sweeps, port scans, man-in-middle attacks and Internet
information queries.
Answer: AE
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