H12-711_V4.0 무료 덤프문제 온라인 액세스

Which of the following functions help implement IPsec secure transmission of user service data on the Internet by means of encryption and authentication?

• A.Anti-replay
• B.Data origin authentication
• C.Data encryption
• D.Data integrity check

Which of the following types of packets cannot be filtered by a packet filtering firewall?

• A.Forged ICMP error packets
• B.Non-initial fragments
• C.Non-fragmented packets
• D.Initial fragments

As shown in the figure, which of the following shows the authentication range of ESP in transport mode?

• A.3
• B.4
• C.1
• D.2

At what layer does packet filtering technology in the firewall filter packets?

• A.Data link layer
• B.Network layer
• C.Transport layer
• D.Physical layer

Please classify the following security defenses into the correct classification.

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