(ISC)2
SSCP · Question #820
Which IPSec operational mode encrypts the entire data packet (including header and data) into an IPSec packet?
The correct answer is B. Tunnel mode. In tunnel mode, the entire packet is encrypted and encased into an IPSec packet. In transport mode, only the datagram (payload) is encrypted, leaving the IP address visible within Authentication mode and safe mode are not defined IPSec operational modes.
Submitted by khalil_dz· Apr 18, 2026Network and Communications Security
Question
Which IPSec operational mode encrypts the entire data packet (including header and data) into an IPSec packet?
Options
- AAuthentication mode
- BTunnel mode
- CTransport mode
- DSafe mode
How the community answered
(34 responses)- A3% (1)
- B88% (30)
- C6% (2)
- D3% (1)
Explanation
In tunnel mode, the entire packet is encrypted and encased into an IPSec packet. In transport mode, only the datagram (payload) is encrypted, leaving the IP address visible within Authentication mode and safe mode are not defined IPSec operational modes.
Topics
#IPSec#Tunnel Mode#Encryption#Network Protocols
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