H12-222-ENU 試験問題を無料オンラインアクセス

LDP is dedicated for label distribution and supports multiple message types.
Which of the following messages is used to create, change, or delete label mapping messages for FECs?

• A.Advertisement message
• B.Notification message
• C.Session message
• D.Discovery message

In a MPLS VPN network, two-layer MPLS labels are added into data packets before they are transmitted over the public network.
Which of the following statements regarding data packet processing are true? (Multiple Choice)

• A.The penultimate hop removes the outer label before forwarding the data packet to a peer PB
• B.The peer PE sends the data packet to the correct VPN based on the inner label.
• C.The IP data packet received by the peer PE does not carry labels.
• D.The penultimate hop removes the outer label if the outer label in the data packet is explicit null label 3.

Which of the following statements regarding ASPF and Servermap are true? (Multiple Choice)

• A.During configuration of the NAT server, static Servermap entries are generated.
• B.ASPF determines whether data packets can pass the firewall through the dynamically generated ACL.
• C.The Servermap table uses the 5-tuple to represent one session.
• D.ASPF checks application layer protocol information and monitors the application layer protocol status of connections.

Which of the following statements regarding MAC address spoofing attacks is false?

• A.Attackers initiate MAC address spoofing attacks using the MAC address learning mechanism.
• B.Attackers send data frames with forged MAC address to the switch to initiate MAC address spoofing attacks.
• C.When MAC address spoofing attacks occur, the switch may send packets to the attacker.
• D.When MAC address spoofing attacks occur, the switch may learn incorrect mapping between MAC addresses and IP addresses.

BFD is a universal fast detection technology that can implement fast switchover, so BFD does not need to be used with other fast switching technologies.

• A.FALSE
• B.TRUE