H12-725_V4.0 practice questions, page 4 of 5, with answer review and explanations.
Question 16
AH integrity check involves the hash calculation for IP packets including the IP address, whereas, NAT changes the IP address and causes the hash value change. Therefore, packets on the IPsec tunnel that has AH enabled cannot traverse a NAT device.
TRUE
FALSE
Question 17
As shown in the figure, the NAT policy configuration on the firewall is as follows: [FW-policy-nat]display this nat-policy rule name no-nat source-zone trust destination-zone untrust source-address 10.1.2.0 mask 255.255.255.0 action no-nat rule name nat source-zone trust destination-zone untrust action source-nat easy-ip If other configurations are correct, the IPsec VPN service can be accessed normally.
TRUE
FALSE
Question 18
Which of the following is not a feature of ESP?
Data integrity
Data availability
Data encryption
Data origin authentication
Question 19
Which of the following are Dead Peer Detection (DPD) modes? (Choose all that apply.)
Periodic
Shared
On-demand
Exclusive
Question 20
When gateways are connected using GRE over IPsec, the IPsec encapsulation mode must be tunnel mode.