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Extra info for ActualTests Securing Cisco Network Devices Exam 642552
TCP only D. ICMP Answer: A Explanation: Unlike static packet filtering, which examines a packet based on the information in its header, stateful inspection tracks each connection traversing all interfaces of the firewall and makes sure they are valid. A stateful firewall may examine not just the header information but also the contents of the packet up through the application layer in order to determine more about the packet than just information about its source and destination. QUESTION 67: Which browser-based configuration device can be used to monitor and manage multiple Cisco PIX Security Appliance?
Also, when you are in a CLI view, you have access only to the commands that have been added to that view by the root view user. QUESTION 50: In which version did NTP begin to support cryptographic authentication? A. version 5 B. version 4 C. version 3 D. com - The Power of Knowing 642-552 into the standard Internet time synchronization protocol. It is extremely efficient and needs no more than about one packet a minute to synchronize systems on a LAN to within 1 millisecond, and systems across WANs to within about 10 milliseconds.
The public key is calculated from the private key by each peer and is exchanged over the insecure channel. Each peer combines the other's public key with its own private key and computes the same shared secret number. The shared secret number is then converted into a shared secret key. The shared secret key is never exchanged over the insecure channel. QUESTION 84: Which IPsec protocol is the most popular and why? A. AH, because it provides encryption and authentication B. AH, because it supports tunnel mode C.