H31-611 Online Practice Questions and Answers
Which OpenStack component is responsible for managing virtual networks and determining the ID of the server that the VM IP address.
A. Nova
B. Neutron
C. Cinder
D. NetMatrix
When a host shifts from one network to another, which of the following statements is true?
A. You must change its IP address and MAC address.
B. You must change its IP address, but not its MAC address.
C. You must change its MAC address, but not its IP address.
D. The MAC address and IP address do not need to be changed.
During SDN network fault locating, which of the following commands can be used to collect basic runtime information for datacom devices?
A. display version
B. display diagnostic-information
C. display log
D. display current-configuration
OSPF and IS-IS are similar in many ways. The OSPF backbone area is indicated by area 0. Which of the following is used to indicate the IS-IS backbone area?
A. Area 0
B. Area 1
C. Area 49
D. No specific backbone area
Which of the following statements are true about the comparison between OSPF and IS-IS? (Choose all that apply.)
A. OSPF runs on the IP layer, and IS-IS runs on the data link layer.
B. For IS-IS, a router belongs to multiple areas, but in OSPF, a router can belong to only one area.
C. DIS election in IS-IS is simple, preemptive, and can be predicted. DR election in OSPF is unpredictable and non-preemptive.
D. OSPF supports P2P/P2MP/NBMA/broadcast networks. IS-IS supports only P2P and broadcast networks.
Which of the following statements about BGP are true? (Choose all that apply.)
A. BGP calculates and discovers the optimal route.
B. BGP uses TCP as the transport layer protocol with a port number of 170.
C. BGP stability is ensured by the high reliability of TCP, not by its own mechanism.
D. BGP sends only updated routing information, thereby saving a large amount of bandwidth resources.
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
Which of the following statements are true about OpenFlow interface information reporting? (Choose all that apply.)
A. After the OpenFlow channel is successfully established, the controller actively queries port information from FPs.
B. The controller sends Multipart Request messages to query port information.
C. FPs respond with a Multipart Reply message for batch delivery of port information.
D. When a port changes, the corresponding FP actively sends a Flow Mod message to report the port change information.
Which of the following statements about NETCONF are true? (Choose all that apply.)
A. NETCONF provides a protection locking mechanism to prevent operations performed by multiple users from conflicting with each other.
B. NETCONF can query one or multiple records in a table and requires multiple interactions during this process.
C. NETCONF uses XML coding for system compatibility and extensibility.
D. NETCONF uses existing security protocols to ensure network security, and is not bound to any specific security protocols.