ActualTests Securing Cisco Network Devices Exam 642552

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Extra info for ActualTests Securing Cisco Network Devices Exam 642552

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Reload Answer: D Explanation: The reload command reboots the PIX Security Appliance and reloads the configuration from Flash memory. Proceed with reload?. for confirmation before the reload process begins. Any response other than no causes the reboot to occur. com - The Power of Knowing 642-552 The noconfirm command option permits the PIX Security Appliance to reload without user confirmation. The PIX Security Appliance does not accept abbreviations to the keyword noconfirm. QUESTION 66: Which connections does stateful packet filtering handle?

The remote peer combines its identity information with the preshared-based authentication key and sends them through a hash algorithm to form hash_R. hash_R is sent to the local peer. If the local peer can independently create the same hash from its stored information and preshared-based authentication key, the remote peer is authenticated. Each peer must authenticate its opposite peer before the tunnel is considered secure. Preshared keys are easy to configure manually but do not scale well. Each IPSec peer must be configured with the preshared key of every other peer with which it communicates.

These attributes, which are collectively known as the state of the connection, may include such details as the IP addresses and ports involved in the connection and the sequence numbers of the packets traversing the connection. The most CPU intensive checking is performed at the time of setup of the connection. All packets after that (for that session) are processed rapidly because it is simple and fast to determine whether it belongs to an existing, pre-screened session. Once the session has ended, its entry in the state-table is discarded.

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