H3C Constructing H3C High-Performance Campus Networks Sample Questions:

1. The SNMP protocol adopts the C/S structure and gives UDP to realize the message transmission. In order to ensure the normal interaction of protocol messages between the network management workstation and SNMP, they all need to monitor the specific UDP port number. The following statement about them is correct.

A) Both the network management workstation and the SNMP agent monitor UDP port 161
B) The gateway workstation monitors UDP port 162, and the SNMP agent monitors UDP port 161
C) Both the gateway workstation and SNMP agent monitor UDP port 162
D) The gateway workstation monitors UDP port 161, and the SNMP agent monitors UDP port 162

2. The IP address of the host PCA is 40.1.1.1, the MAC address is 0011.1111.1111, and it is connected to the GigabitEthernet1/0/1 port of the switch SWA. The following commands are configured on the switch SWA:
[SWA]vlan 10
[SWA-vlan10]quit
[SWA]vlan 20
[SWA-vlan20]protocol-vlan ipv4
[SWA-vlan20]quit
[SWA]vlan 30
[SWA-vlan30]quit
[SWA]mac-vlan mac-address 0011-1111-1111 vlan 30
[SWA]vlan 40
[SWA-vlan40]ip-subnet-vlan ip 50.1.1.0 255.255.255.0
[SWA-vlan40]quit
[SWA]interface GigabitEthernet 1/0/1
[SWA-GigabitEthernet1/0/1]port link-type hybrid
[SWA-GigabitEthernet1/0/1]port hybrid pvid vlan 10
[SWA-GigabitEthernet1/0/1]port hybrid vlan 10 20 30 40 untagged
[SWA-GigabitEthernet1/0/1]port hybrid protocol-vlan vlan 20 0
[SWA-GigabitEthernet1/0/1]port hybrid ip-subnet-vlan vlan 40
[SWA-GigabitEthernet1/0/1]mac-vlan enable
[SWA-GigabitEthernet1/0/1]vlan precedence ip-subnet-vlan
After the configuration is complete, it can be judged that PCA will join

A) VLAN30
B) VLAN20
C) VLAN40
D) VLAN 10

3. In the network connection as shown in the figure, SWA/SWB/SWC are in the same MSTP domain and configure the same domain configuration
stp region-configuration
region-name h3c
instance 1 vlan 10
instance 2 vlan 20
instance 2 vlan 30
active region-configuration
The ports of the three interconnected links are all Access and belong to the VLAN as shown in the figure. The three switches respectively create the VLAN virtual interface corresponding to the Access link and run OSPF on the virtual interface. The IP address of the VLAN virtual interface is assigned as follows:
SWA: vlan-interface 10 (192.168.10.1); vlan-interface 30 (192.168.30.1)
SWB: vlan-interface 10 (192.168.10.2); vlan-interface 20 (192.168.20.1)
SWC: vlan-interface 20 (192.168.20.2); vlan-interface 30 (192.168.30.2)
When the interconnection ports are all UP and the STP and OSPF calculations are completed, the following descriptions about network connectivity are correct:

A) Among the 6 interconnected addresses, at least two interconnected addresses are mutually unreachable
B) Three switches can establish OSPF neighbor relationships in pairs
C) All interconnection addresses of the three switches are mutually reachable
D) Two of the three switches cannot establish OSPF neighbor relationships

4. Which statement about the STP protocol is correct?

A) STP is mainly used in token ring networks
B) STP is used to eliminate data link layer loops in LAN
C) STP is used to construct the shortest path between two nodes in the LAN
D) When the active link fails, STP can activate the redundant link and restore network connectivity

5. The switch SWA and SWB are connected together by two optical fiber Gigabit Ethernet links. The switch SWA has the following interface configuration:
[SWA]interface GigabitEthernet 1/0/1
[SWA-GigabitEthernet1/0/1]gvrp
[SWA-GigabitEthernet1/0/1]port link-type trunk
[SWA-GigabitEthernet1/0/1]port trunk permit vlan 1 10
[SWA]interface GigabitEthernet 1/0/2
[SWA-GigabitEthernet1/0/2]port link-type trunk
[SWA-GigabitEthernet1/0/2]port trunk permit vlan 1 10
It can be seen from the above

A) If SWA4 is switched to enable MSTP, one of GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 will be blocked
B) GigabitEthernet1/0/1 and GigabitEthe1/0/2 cannot join the same aggregation group
C) Only by changing the configuration of GigabitEthe1/0/2 to be consistent with GigabitEthe1/0/1, can they join the same aggregation group
D) If MSTP is enabled on the SWA switch, GigabitEthe1/0/1 and GigabitEthe1/0/2 can participate in forwarding

Solutions: