It's Thursday, November 6, and here are the answers to Wednesday's questions!
Describe each of the three major steps in the TCP three-way handshake.
Answer: In a nutshell....
1. Client sends SYN segment
2. Server responds with SYN-ACK segment
3. Client responds with ACK segment, three-way handshake concludes.
What symmetric encryption algorithm is considered the strongest available today?
Answer: The Advanced Encryption Standard (AES).
What is the private range of BGP Autonomous System numbers?
Answer: 64512 - 65535.
What is the net effect of the following two commands?
SW2(config)#errdisable recovery cause all
SW2(config)#errdisable recovery interval 300
Answer: The router can now "self-recover" from a port going into err-disabled state regardless of cause. Otherwise, the port would need to be manually reenabled. The interval is expressed in seconds, so there will be a five-minute interval before that self-recovery.
Which of the following accurately describes WEP?
A. uses static keys
B. offers one- and two-way authentication
C. strong encryption
D. uses clear-text keys
Answer: A, D. WEP offers only one-way authentication, and this encryption scheme is anything but strong!
More questions later today!
To your success,