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 19,2025.
- Exam Code: GB0-320
- Exam Name: Constructing Enterprise-level Switching Networks
- Certification Provider: H3C
- Latest update: Feb 19,2025
The essence of layer 3 switch is to implement the forwarding by hardware instead of by software in common routers. So it is more effective than the common router. To facilitate this implementation by hardware, the layer 3 switch has greatly simplified the packet forwarding process.
- A . True
- B . False
Which of the following items correctly describes the relationship between layer 3 switching and router?
- A . Layer 3 switching and router implement the logically same functions.
- B . Layer 3 switching realizes search and forwarding via hardware
- C . The traditional router realizes search and forwarding via the software running on micro processor.
- D . Like a router, the routing forwarding table of the layer 3 switching is the same as that of the router. It needs to be created and maintained by the software via the routing protocol.
Which are the same functions shared by layer 3 switching and router?
- A . Determine the path according to the logical address
- B . Run the checksum of layer 3
- C . Use TTL (Time to live)
- D . Refresh SNMP management via MIB (Management Information Base)
Compared with the implementation of layer 3 packet forwarding through router, layer 3 switch has the advantages such as:
- A . Bigger flexibility
- B . Low delay
- C . Low cost
- D . It can be applied in the complicated network environment
Which of the following descriptions of layer 4 switching are true?
- A . In fact, the layer 4 switching is the layer 3 routing based on the hardware and takes layer 4 parameters into account.
- B . In the transfer layer protocol TCP/UDP, the application type is marked in the header of the data field/ packet as the port number. The layer 4 switching identifies the application types of different packets by checking the port number, thus sorting the data stream according to the application.
- C . It can conveniently provide QoS and traffic measurement according to the application type of data stream.
- D . Layer 4 switching can forward the data only according to layer 4 parameters.
Which of the following can be implemented in the convergent layer?
- A . VLAN trunk
- B . Routing between VLANs
- C . Access to department or workgroup
- D . Defining broadcast domain and multicast domain
NMS of LAN, which consists of some network monitoring and control tools, has the following functions:
- A . Flow control
- B . Configuration
- C . Monitoring
- D . Fault isolation
Which of the following switching modes are adopted by Huawei Quidway S3526 Ethernet switch?
- A . Store and forward
- B . Cut-Through
- C . Circuit switching
- D . All the above are not the right answer.
Taking the requirement of LAN into consideration, when analyzing data flow and flow distribution, which of the following factors must be considered:
- A . The administrative units in one organization are divided according to their different functions. The data flow and flow direction inside the unit and between units are different.
- B . The hosts in LAN include PC/workstation, printer and server and their different functions lead to the data flow difference.
- C . The physical location allocation of the hosts in the network is not even, so the flow of different network segments is also uneven.
- D . The applications of File transmission, E-mail service, public database visit and share printer have different data flow mode.
Which of the following descriptions of 80/20 rules are true?
- A . 80/20 flow mode means that 80% of users data flow is at the local segment and only 20% of users data flow enter other segments via routers or bridges.
- B . For the network adopting 80/20 rules, the network resources of users are in the same remote network segment
- C . The network adopting 80/20 rules is more fitful with LAN in a small-sized company.
- D . All the above descriptions are false.
