Which of the following statements about VXLAN messages is correct? (Multiple Choice)

• A.Destination UDP port number is 4789
• B.The outer destination IP address is the IP address of the remote VTEP of the VXLAN tunnel.
• C.VNI has 24 bits and used to distinguish VLAN segments.
• D.The source UDP port number is 4789

Comment: *

Name: *

Email: *

Verification: *

Combined with the output of the following figure, which of the following judgment is correct? (Multiple choice)

• A.R3 must be a DIS of a level-2 link
• B.R3 must be a DIS of a level-1 link
• C.The system ID of the R3 router is 0003.0000.0000
• D.R3 router is a level-2 router

Comment: *

Name: *

Email: *

Verification: *

Configure queue-based traffic shaping. If the queue length exceeds the cache size, the tail drop is performed by default.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

As shown in the figure, an OSPF network is set up by the company. The links in the figure form OSPF adjacencies. All OSPF devices announce their own loopback addresses. One day S1-R2 and S2-R1 two links suddenly failed. In order to check whether the network is running normally, the engineer performed a device status check. Which of the following descriptions are correct? (Multiple Choice)

• A.R5 can learn the loopback route of R2 normally.
• B.R1 can learn the loopback route of R2 normally.
• C.R3 cannot learn the loopback route of R2.
• D.R3 can learn the loopback route of R2 normally.

Comment: *

Name: *

Email: *

Verification: *

Network administrators can use CAR technology in traffic policing. Which of the following technologies can be applied in CAR?

• A.Single barrel single speed
• B.Three barrels single speed
• C.Double barrel single speed
• D.Double barrel double speed

Comment: *

Name: *

Email: *

Verification: *