642-825 Exam
Implementing Secure Converged Wide Area Networks
* Exam Number/Code : 642-825
* Exam Name : Implementing Secure Converged Wide Area Networks
* Questions and Answers : 212 Q&As
* Update Time: 2010-06-08
* Price: $ 112.00
1. What are the two main features of Cisco IOS Firewall? (Choose two.)
A. TACACS+
B. AAA
C. Cisco Secure Access Control Server
D. Intrusion Prevention System
E. Authentication Proxy
Answer: DE
2. Refer to the exhibit. Which two statements about the AAA configuration are true? (Choose two.)
A. A good security practice is to have the none parameter configured as the final method used to ensure that no other authentication method will be used.
B. If a TACACS+ server is not available, then a user connecting via the console port would not be able to gain access since no other authentication method has been defined.
C. If a TACACS+ server is not available, then the user Bob could be able to enter privileged mode as long as the proper enable password is entered.
D. The aaa new-model command forces the router to override every other authentication method previously configured for the router lines.
E. To increase security, group radius should be used instead of group tacacs+.
F. Two authentication options are prescribed by the displayed aaa authentication command.
Answer: DF
3. Which two Network Time Protocol (NTP) statements are true? (Choose two.)
A. A stratum 0 time server is required for NTP operation.
B. NTP is enabled on all interfaces by default, and all interfaces receive NTP packets.
C. NTP operates on IP networks using User Datagram Protocol (UDP) port 123.
D. The ntp server global configuration is used to configure the NTP master clock to which other peers synchronize themselves.
E. The show ntp status command displays detailed association information of all NTP peers.
F. Whenever possible, configure NTP version 5 because it automatically provides authentication and encryption services.
Answer: BC
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