H3C GB0-320 Constructing Enterprise-level Switching Networks Online Training
H3C GB0-320 Online Training
The questions for GB0-320 were last updated at Feb 18,2025.
- Exam Code: GB0-320
- Exam Name: Constructing Enterprise-level Switching Networks
- Certification Provider: H3C
- Latest update: Feb 18,2025
Through which of the following packets is the BPDU packet transmitted?
- A . IP packet
- B . TCP packet
- C . Ethernet frame
- D . UDP frame
Which of the following descriptions of the Blocking status (Discarding status) of the spanning tree is false?
- A . In Blocking status, BPDU packet can be received.
- B . In Blocking status, no packet can be received.
- C . In Blocking status, no MAC address can be learned.
- D . In Blocking status, no data packet can be forwarded.
Which of the following descriptions of the port status transition under RSTP is false?
- A . In the case that there are redundant paths leading to the root, if the original path is faulty, only several milliseconds is needed for finding the path fault and restoring the link connectivity.
- B . In the case of point-to-point link, only one handshake is needed for the designated port to be transited to the Forwarding status. And the delay period is only several milliseconds.
- C . For the bridging network running RSTP, the stable period of topology must be more than 30 seconds (Twice the period of ForwardDelay)
- D . The port directly connecting to the PC can be rapidly transited to the Forwarding status, but the subscribers need to configure it to be the edge port firsA.
The values of the bridge priorities are not consecutive, and they are based on a certain step length, which is the step length?
- A . 16
- B . 100
- C . 1024
- D . 4096
When displaying the STP information via the display command, which of the following information related to the port is not include?
- A . The switch priority
- B . HelloTime, MaxAge and ForwardDelay configured to the switch
- C . Root bridge ID
- D . Location information of the switch in the spanning tree
To which of the following MAC multicast addresses should the multicast IP address 224.215.155.155 be mapped?
- A . 01-00-5e-70-9b-9b
- B . 01-00-5e-40-9b-9b
- C . 01-00-5e-57-9b-9b
- D . 01-00-5e-30-9b-9b
Which of the following descriptions of IGMP functions is true?
- A . It is for the router to notify the layer 2 switch the host joining the multicasA.
- B . Enhance IP packet forwarding performance
- C . Maintain VLAN dynamically
- D . Maintain the multicast group information between the host and the router.
Through which of the following messages does PIM-SM refresh its multicast distribution tree?
- A . Hello message
- B . Registration message
- C . Join/pruning message
- D . C-RP-Adv message
For the switch, to which of the following items can the interface ACL perform the packet filtering? ( )
- A . Source IP address and its subnet mask
- B . Destination IP address and its subnet mask
- C . Name of the designated interface
- D . Ethernet encapsulation type of the data packet
LAN is a high-speed error tolerance data network covering a relatively small geographical scope. Except the covering scope, the differences between LAN and WAN lie in network ownership and data rate.
- A . True
- B . False
