GB0-371-ENU試験無料問題集「H3C Constructing H3C High-Performance Campus Networks 認定」

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トータル 337 問

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出題：1

In the network shown in the figure, the switch SWA is a two-layer switch, and the router RTA is the gateway of each PC. The following configuration is made on the router RTA:
[RTA]interface Ethernet 0/0.1
[RTA-Ethernet0/0.1]ip address 10.10.10.1 255.255.255.0
[RTA-EthernetO/0.1 ]vlan-type dotlq vid 1
[RTA-Ethernet0/0.1 Jinterface ethernet 0/0.2
[RTA-Ethernet0/0.2]ip address 20.20.20.1 255.255.255.0
[RTA-Ethernet0/0.2]vlan-type dotlq vid 2
[RTA-Ethernet0/0.2]interface ethernet 0/0.3
[RTA-Ethernet0/0.3]ip address 30.30.30.1 255.255.255.0
[RTA-Ethernet0/0.3]vlan-type dotlq vid 3
After completing the phase configuration on the switch SWA, PCA, PCB and PCC can all ping their own gateway. The following is correct about the switch SWA port Ethernet1/0/4 (choose one or more)

A. interface Ethernet 1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 10

B. interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 2

C. interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all

D. interface Ethernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 3

正解：A 解答を投票する

出題：2

The switches SWA and SWB are connected together through two optical fiber Gigabit Ethernet links, and 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
If you want to configure link aggregation to aggregate these two links together, if the configuration on the SWB is correct, you can know from the above information

A. Only by changing the configuration of GigabitEthe1/0/2 to be consistent with GigabitEthe1/0/1, can they join the same aggregation group

B. After link aggregation is configured on SWASWB, if both SWA and SWB enable MSTP on the aggregation port, one of GigabitEthe1/0/1 and GigabitEthe1/0/2 will be blocked

C. Only when GigabitEthernet1/0/2 and Gigabit1/0/1 allow all VLANs to pass, they can join the same aggregation group

D. After link aggregation is configured on both SWA and SWB, if both SWA and SWB enable MSTP on the aggregation port, GigabitEthernet1/0/1 and GigabitEthe1/0/2 can participate in forwarding

正解：D 解答を投票する

出題：3

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, allowing all VLANs to view Ethernet 1/0/3 port information on SWA, the correct one is displayed below

A. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q

B. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2 VLAN permitted: 1 (default vlan), 2-9, 11-4094 Trunk port encapsulation: IEEE 802.1q

C. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2-3,10 VLAN permitted: 1 (default vlan), 2-4094 Trunk port encapsulation: IEEE 802.1q

D. [SWA]display interface Ethernet 1/0/3 Ethernet1/0/3 current state: UP ...... PVID: 1 Mdi type: auto Link delay is 0(sec) Port link-type: trunk VLAN passing: 1 (default vlan), 2-3 VLAN permitted: 1 (default vlan), 2-9, 11-4094 Trunk port encapsulation: IEEE 802.1q

正解：D 解答を投票する

出題：4

Regarding MSTP, the correct statement is

A. A VLAN in MSTP can be mapped to multiple spanning tree instances

B. The basic idea of MSTP is to calculate a spanning tree for each VLAN, and each tree corresponds to a spanning tree instance

C. MSTP is defined in 802.1s^ which can not only meet fast convergence, but also achieve load sharing

D. A spanning tree instance in MSTP can contain multiple VLANs

正解：C,D 解答を投票する

出題：5

Regarding the configuration of the spanning tree protection mechanism, the following statements are correct

A. Loop protection commands need to be configured on each port on the physical loop

B. After the TC protection threshold is configured, if the number of TC packets received by the device within the default 10 seconds exceeds the threshold, the device will no longer delete the address table entry within these 10 seconds

C. BPDU protection needs to be configured in the view of the port designated as an edge port

D. Only when the root bridge protection command is configured on the root bridge in the network will it play a protective role

正解：B 解答を投票する

出題：6

In the networking shown in the figure, the PIMSM protocol runs between RT1, RT2 and RT3, the RP is 1.1.1.1, and there is a downstream receiver RT3 connected to a multicast source, check the RT3 unicast routing table as follows:
[RT3]display ip routing-table
Routing Tables: Public
Destinations: 10 Routes: 10
Destination/MaskProtoPreCost NextHop Interface
1.1.1.1/320SPF 10 1562 192.168.2.1 so/2/1
127.0.0.0/8 Direct 00127.0.0.1 InLoopO
127.0.0.1/32Direct 00127.0.0.1 InLoopO
192.168.0.0/30Direct 00192.168.0.2 S0/2/0
192.168.0.1/32Direct 00192.168.0.1 S0/2/0
192.168.0.2/32Direct 00127.0.0.1 InLoopO
192.168.1.0/300SPF 10 3124 192.168.2.1 so/2/1
192.168.2.0/30Direct 00192.168.2.2 so/2/1
192.168.2.1/32Direct 00192.168.2.1 so/2/1
192.168.2.2/32Direct 00127.0.0.1 InLoopO
Then, after the RP sends the registration stop message, which of the following routers have (S, G) entries

A. RT2

B. RT1

C. RT3

正解：A,C 解答を投票する

出題：7

Regarding the POE system, ______ is correct.

A. POE usually uses min-span and end-span power supply methods

B. The voltage provided by the POE power supply is 48V, and the output power does not exceed 13W

C. Usually PSE can support two methods of mid-span and end-span, PD can only support one

D. The POE system includes two parts: PSE equipment and PD equipment, where PD is the power supply device, and PSE is the power receiving device

正解：A,B 解答を投票する

出題：8

By viewing the IGMP group information, you can learn the following:

A. Number of multicast group Report packets

B. Multicast group IGMP querier

C. The address of the first host of the multicast group to send a Report message

D. Multicast group information maintained by the router

正解：A,B,D 解答を投票する

出題：9

Regarding priority mapping and priority trust, there are correct statements

A. After the message enters the switch port, it will enter the queue according to the priority of the port by default

B. After the packet enters the switch, if you want to queue according to the 802.1P or DSCP value, you must configure the port to trust 802.1P or DSCP

C. After the packet enters the switch port, it will enter the queue according to the priority of DSCP by default

D. After the packet enters the switch port, it will enter the queue according to the priority of 802.1P by default

正解：A,B 解答を投票する

出題：10

In the switching network as shown in the figure, VLAN10 is set as Isolate-user-vlan on switch SWA, VLAN2 and VLAN3 are set as Secondary VLAN of VLAN 10; VLAN2-VLAN20 is created on switch SWB, and VLAN20 is set as Isolate-user-vlan , VLAN4 is the Secondary VLAN of VLAN20. After setting the IP address of each device as shown in the figure, the following statement is correct (choose one or more)

A. The packet of PCA enters from the GigabitEther1/0/1 port of SWA, and does not carry the VLAN tag after exiting from the GigabitEther1/0/3 port

B. SWB packets enter from SWA's GigabitEthem1/0/3 port, and after exiting from GigabitEthem1/0/1 port, the VLANTag carried is VLAN2

C. When SWB accesses PCA, the VLAN tag carried by GigabitEthem1/0/4 of SWB is VLAN 1

D. The PCA packet comes out of the GigabitEthem1/0/3 port of SWA and enters the GigabitEthe1/0/3 port of SWB, and the VLAN Tag carried is VLAN2

正解：A 解答を投票する

出題：11

In the networking shown in the figure, the interconnection lines between RT1, RT2, RT3, and RT4 are all 1000M links except the shared Ethernet part which is a 10M link. The OSPF protocol is run to enable routing to communicate with these 4 routers. Both run PIMSM protocol, RP is 1.1.1.1, receivers are connected to the downstream interfaces of RT1 and RT2, and IGMP is enabled on the corresponding interfaces. Then, when the receiver sends a group join request, which of the following routers are connected (*, G) entry exists?

A. RT2

B. RT1

C. RT3

D. RT4

正解：A,B,C 解答を投票する

出題：12

The customer purchased a router. If the performance index of the router is MTBF>Y14 8 years, and the average maintenance time MTTR<U1, the reliability of the router is

A. 99.99%

B. 99.999%

C. 99.9999%

D. 99.9%

正解：B 解答を投票する

出題：13

In the PIM-DM networking, about the router sending Prune (prune) message, the description is correct.

A. When the router has no local directly connected multicast receivers, it will send a Prune message to the upstream RPF neighbor

B. After the router interface receives the Prune message, it will no longer send packets of the corresponding multicast group on this interface

C. After the router RPF interface receives the Prune message, it will no longer receive packets from the corresponding multicast group on this interface

D. When the outgoing interface list in the router (S, G) entry is empty, it will send a Prune message to the upstream RPF neighbor

E. Assert (Assert) The losing party sends Prune to the winning party

正解：D,E 解答を投票する

出題：14

The security of the campus network should consider which of the following developments

A. Effectively identify legal and illegal users

B. Effective access control

C. Effective management of network equipment and network topology

D. Protect the physical circuit

正解：A,B,C,D 解答を投票する

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トータル 337 問