Diffie-Hellman key exchange question

Which port should (or would) be open if VPN NAT-T was enabled?

What is example of social engineering

Which of the following commands result in a secure bootset? (Choose all that apply.)

Command ip ospf authentication key 1 is implemented in which level.

Which are two valid TCP connection states (pick 2) is the gist of the question.

Which component of CIA triad relate to safe data which is in transit.

Which of the following pairs of statements is true in terms of configuring MD authentication?

Which line in the following OSPF configuration will not be required for MD5 authentication to
work?
interface GigabitEthernet0/1
ip address 192.168.10.1 255.255.255.0
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 CCNA
!
router ospf 65000
router-id 192.168.10.1
area 20 authentication message-digest
network 10.1.1.0 0.0.0.255 area 10
network 192.168.10.0 0.0.0.255 area 0
!

Which feature allows a dynamic PAT pool to select the next address in the PAT pool instead
of the next port of an existing address?