H3C GB0-371-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: High Availability Mechanisms | - Link Aggregation - RRPP, VRRP, IRF |
| Topic 2: VLAN and Switching Technologies | - Switch port types and VLAN configurations - VLAN concepts and IEEE 802.1Q - Inter-VLAN routing principles |
| Topic 3: Spanning Tree Protocols | - STP/RSTP/MSTP concepts and operations |
| Topic 4: IP Multicast | - PIM-DM, PIM-SM - Multicast basics and IGMP/Snooping |
| Topic 5: Campus Network Fundamentals | - Campus network architecture and design - Enterprise network models and deployment |
| Topic 6: Security Basics in Campus Networks | - AAA concepts (RADIUS/TACACS+) - Port security and access control |
H3C Constructing H3C High-Performance Campus Networks Sample Questions:
1. The following statement about the three-layer switch is correct.
A) The three-layer switch actually combines part of the functions of the two-layer switch and router, which improves the network integration and enhances the forwarding performance
B) The three-layer forwarding engine of the three-layer switch is equivalent to the function of the router in the traditional networking, using hardware ASIC technology to realize the three-layer routing and forwarding across network segments
C) The Layer 3 switch contains two parts: a Layer 2 VLAN forwarding engine and a Layer 3 forwarding engine
D) The three-layer switch functionally realizes the division of VLANs, the two-layer switching within the VLAN and the functions of inter-VLAN routing
2. For the following configuration commands:
[H3C] ntp-service refclock-master 127.127.1.1 6
Understanding, which is correct
A) The device successfully configured with this command can act as a clock server to provide external clock synchronization services
B) This command configures the local clock as the reference clock of the system
C) The device successfully configured with this command has a clock accuracy of 6 in stratum
D) This command can be successfully configured on all H3C series switches
3. The topology is shown in the figure, and the STP calculation is performed. The correct result is:
A) SWD needs to determine the root port by comparing the ID of the port that receives the configuration BPDU
B) Since the root bridge ID, root path cost, designated bridge ID, and designated port are the same, the root port of SWD cannot be determined
C) If the bridge priority of SWD is set to 0, SWD will become the root bridge, and ports E0/1 and E0/2 are designated ports
D) If the bridge priority of SWD is set to 0, port E0/2 of SWD will only receive configuration BPDUs and not send configuration BPDUs
4. In the switching network as shown in the figure, VLAN10 is set as Super VLAN on switch SWA, VLAN2 and VLAN3 are Sub VLAN of VLAN10, port Ethernet1/0/3 is Trunk port, PVID is VLAN1, allowing all VLANs to pass through; Create VLAN2~VLAN20 on SWB, port Ethernet1/0/4 as Trunk port, PVID is VLAN1, allow all VLANs by setting the IP address of each device as shown in the figure, you can judge_
A) None of the above answers
B) PCA can communicate with PCC
C) PCA can communicate with SWB
D) PCA can communicate with SWA
E) PCA can communicate with PCB
5. The Layer 3 switch receives the data frame and performs the Layer 2/Layer 3 forwarding judgment
A) If the destination IP address and source IP address of the data frame are in the same network segment, the switch will do Layer 2 forwarding
B) If the destination IP address and source IP address of the data frame are not in the same network segment, the switch will look up the routing table for Layer 3 forwarding
C) If the destination MAC address of the data frame is not the MAC address of the VLAN interface of the switch, the switch will look up the MAC address table and do Layer 2 forwarding in the VLAN
D) If the destination MAC address of the data frame is the MAC address of the VLAN interface of the switch, the switch will perform Layer 3 forwarding
Solutions:
| Question # 1 Answer: A,B,C,D | Question # 2 Answer: A,B,C | Question # 3 Answer: A,D | Question # 4 Answer: B,D | Question # 5 Answer: C,D |
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