H31-611 Online Practice Questions and Answers

Which of the following is the port number used by VXLAN packets?

A. 4786

B. 4787

C. 4788

D. 4789

On an SDN network, network devices only need to be responsible for data forwarding.

A. TRUE

B. FALSE

CE series switches on an SDN network cannot use service interfaces for stacking configuration.

A. TRUE

B. FALSE

Regarding the VS technology of CE series switches on an SDN network, which of the following statements are true? (Choose all that apply.)

A. All ports on a forwarding chip of the LPU must be allocated to the VS in Group mode at the same time.

B. All ports on a forwarding chip of the LPU must be allocated to the VS in Port mode at the same time.

C. Any LPU ports can be freely assigned at any VS in Group mode.

D. Any LPU ports can be freely assigned at any VS in Port mode.

From the perspective of the entire Internet, which of the following methods can be effectively reduce the size of the routing tables on an SDN network?

A. Increase the frequency of updating dynamic routes

B. Divide VLANs

C. Summarize routes

For a router that runs BGP4, which of the following statements is not true?

A. When multiple paths exist, BGP4 selects the optimal path.

B. BGP notifies the routes obtained from EBGP to all its BGP peers.

C. BGP advertises to BGP peers only the routes it uses.

D. BGP4 notifies the routes obtained from IBGP to all its BGP peers.

OpenFlow channel establishment and maintenance involves which of the following messages? (Choose all that apply.)

A. Hello message

B. Features Request message

C. Echo Request message

D. PortStatus message

On an SDN network, OpenFlow connection backup data mainly includes which of the following? (Choose all that apply.)

A. Collected forwarder interface information

B. Binding relationship between the logical interface of the controller and the forwarder's physical interface

C. Connection management information of the forwarder

D. Collected forwarder VLAN information

IN SNMP, managed devices use which of the following messages to actively send alarms to the NMS?

A. Trap

B. Inform

C. Get

D. Set

Which of the following statements about SNMP are not true? (Choose all that apply.)

A. SNMP is an application layer protocol that requires reliable TCP at the transport layer to provide services.

B. SNMP is used to manage information transmitted between the two points, making it easy for administrators to preform operations.

C. SNMP uses the client/server model.

D. There are three SNMP protocol versions. Currently, only SNMPv3 supports community name-based security mechanisms.