H12-222 試験問題を無料オンラインアクセス

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

VRRP packets do not support authentication.

• A.FALSE
• B.TRUE

Which of the following packets are transmitted in unicast mode during IP address application by the DHCP client and IP address allocation by the DHCP server? (Multiple Choice)

• A.DHCP ACK
• B.DHCP Offer
• C.DHCP Request
• D.DHCP Discover

A DHCP server may use different address ranges to allocate IP addresses to clients.
Which of the following statements regarding address allocation are true? (Multiple Choice)

• A.First available IP address found by the server in the DHCP address pool.
• B.On the DHCP server query Expired and conflicting IP addresses, if you find an available IP address, you can assign.
• C.IP address that is statically bound with the MAC address of a client in the database of the DHCP sever.
• D.IP address that has been allocated to the client, that is, the IP address in the Requested IP Addr Option of the DHCP Discover packet sent by the client.
• E.IP address that once conflicts with the IP address of another client.

VXLAN communication can be performed between different virtual machines by using a VTEP tunnel established by a vSwitch. Then, the communication process of VXLAN is:
1. The source WTEP encapsulates the ARP broadcast sent by the source VM into multicast packets and sends them to the L3 network.
2. After receiving the multicast packet, the destination VTEP learns the mapping between the source VM and the source VTEP and forwards the multicast packet to the local VM.
3. The local VM performs a unicast response.
4. The target VTEP encapsulates the Vxlan tunnel and establishes a mapping table encapsulation and sends the unicast to the source VTEP.
5. The source VTEP receives the mapping between the target VM and the target VTEP established by tunnel, and removes the tunnel and forwards it to the source VM.
6. The source VW communicates with the target VM through the tunnel for unicast packets.

• A.1-2-3-4-5-6
• B.3-5-2-4-1-3
• C.1-3-2-4-6-5
• D.1-5-6-4-3-2