Hi. Could someone know these question?
Which of the following is a correct statement?
IPSec uses symmetrical keys.
TCP Sequence numbers protect against man-in-the-middle attacks
Port scans are of limited use in enumerating systems because they do not participate in authentication.
The nslookup utility can be used to obtain NetBIOS zone transfers.
TLS and Kerberos do not support mutual authentication.

Question

Hi. Could someone know these question?
Which of the following is a correct statement?
       IPSec uses symmetrical keys.
       TCP Sequence numbers protect against man-in-the-middle attacks
       Port scans are of limited use in enumerating systems because they do not participate in authentication.
       The nslookup utility can be used to obtain NetBIOS zone transfers.
       TLS and Kerberos do not support mutual authentication.

e.mccormick · Answer

Did you try searching on these topics?  How about any you know are wrong?