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H3C GB0-372-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| High Availability Technologies | 15% | - Device redundancy and failover - VRRP protocol and deployment - Link aggregation (LACP and static mode) |
| Spanning Tree Protocols | 20% | - Root bridge and port roles election - STP, RSTP and MSTP principles - MSTP configuration and optimization - Bridge protocol data units (BPDU) |
| Advanced Switching Features | 20% | - Switch management and monitoring - Port security and traffic control - Layer 3 switching and routing protocols - DHCP relay and snooping |
| Campus Network Overview | 10% | - Campus network architecture and design principles - Hierarchical network model |
| IP Multicast | 15% | - PIM-DM and PIM-SM basics - IGMP protocol versions and operation - Multicast concepts and addressing |
| VLAN Technologies | 20% | - Trunk, Hybrid and Access ports - VLAN fundamentals and configuration - VLAN routing and Inter-VLAN communication - QinQ technology and application |
H3CSE-RS-SW Sample Questions:
Question 1
After executing the displayinterface Ethernet 1/0/1 command on the switch SWA, the output information is as follows:
[SWA] display interface Ethernet 1/0/1
Ethernet1/0/1 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0 (sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
what can we learn from the above information? (Multiple choice)
A. Data frames with VLAN10 tags will not be discarded when they enter port Ethernet1/0/1
B. Data frames with VLAN 20 tags can be forwarded from port Ethernet 1/0/1
C. The data frame with VLAN1 tag will be stripped of the tag when it leaves port Ethernet1/0/1
D. Port Ethernet1/0/1 is a Trunk port, allowing data from all VLANs to pass through.
Question 2
Regarding the priority marking of IP packets, which of the following is correct? (Multiple choice)
A. 802.1P priority is identified by the prionity field in the VLAN tag
B. DSCP defines four types of network processes, among which the accelerated forwarding EF class is divided into four subclasses EF1/2/3/4
C. 802.1P priority is divided into 4 levels from 0 to 3
D. The TOS field of the current IP packet contains two fields: IP priority and service type, of which IP priority occupies 3 bits.
Question 3
Which of the following descriptions of SDN data center solutions are correct? (Multiple choice)
A. The centralized gateway solution is forwarded by Spine according to the MAC header of the inner message
B. The centralized gateway solution is forwarded by Spine according to the IP header of the inner message
C. The Leaf nodes of the distributed gateway solution can simultaneously undertake VXLANL2/L3 forwarding
D. Divided into centralized gateway solution and distributed gateway solution
Question 4
Which of the following descriptions about H3C switch static routing is correct?
A. Layer 2 switches do not support routing forwarding, so static routing cannot be configured on Layer 2 switches.
B. Only Layer 3 switches can be configured with static routing
C. When configuring static routing, the switch can directly specify the outbound interface without specifying the next hop.
D. Layer 2 switches can be configured with static routing
Question 5
When an IGMPV3 host wishes to leave multicast group G, it will actively send a Membership Report message containing the group record?
A. TO_EX (A, G)
B. TO_IN (Null, G)
C. TO_EX (Null, G)
D. TO_IN (A, G)
Solutions:
| Question 1 Answer: A,C,D | Question 2 Answer: A,D | Question 3 Answer: B,C,D | Question 4 Answer: D | Question 5 Answer: B |
