Huawei H12-831_V1.0 Actual Free Exam Questions & Community Discussion
In a networking environment where the network is relatively stable and has high requirements for routing convergence time, you can specify the OSPF LSA reception time interval to 0 to cancel the LSA reception time interval, so that topology or routing changes can be immediately perceived, thereby accelerating routing convergence.
Correct Answer: A
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In the OSPF network shown in the figure, the area numbers are marked in the figure, where area
1 is the Stub area, area 2 is the Totally Stub area, and area 3 is the NSSA area. By default, which of the following routers does not have a default route in its routing table?
1 is the Stub area, area 2 is the Totally Stub area, and area 3 is the NSSA area. By default, which of the following routers does not have a default route in its routing table?
Correct Answer: A
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When the basic QinQ function is configured on a port of the switch, only when a message with a VLAN Tag is received from the port will the message be tagged with the default VLAN of the port, thereby achieving the purpose of expanding the VLAN space.
Correct Answer: B
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Which of the following is not a new addition to IS-IS to support the processing and calculation of IPv6 routes?
Correct Answer: D
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The network and VPN planning of a certain enterprise is shown in the figure. Please match the sites through which business traffic can communicate one by one.
Correct Answer:
As shown in the figure, an administrator configures static LSP between routers R1~R4. Which of the following configuration options are correct? (Multiple choice)
Correct Answer: A,C
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The network administrator deploys the IPSG function on the access switch to prevent IP address spoofing attacks. Then he needs to enable the IP packet inspection function in the interface view or () view of the switch.
Correct Answer:
VLAN
BGP allows you to use the filter-policy acl-number import command to filter received routes. The value of ad-number ranges from 2000 to 3999.
Correct Answer: A
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With the increase of business traffic, an enterprise needs to expand the backbone network transmission bandwidth. Which of the following methods can best meet this demand?
Correct Answer: D
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In the IS-IS IPv6 network shown in the figure, all routers have multi-topology enabled. The IPv6 address of the R4 Loopback0 interface is 2000::4/128. Configure "ipv6 summary 2000::64 level-
2" in the R2 and R1 IS-IS processes. Configure "ipv6 import- route isis level-2 into level-1" in the R1, R2, and R3 IS-IS processes.
By default, which of the following routers have a route entry for 2000::/64 in their routing table?
2" in the R2 and R1 IS-IS processes. Configure "ipv6 import- route isis level-2 into level-1" in the R1, R2, and R3 IS-IS processes.
By default, which of the following routers have a route entry for 2000::/64 in their routing table?
Correct Answer: A,C
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In the network shown in the figure, R1, R2, R4, and R5 run IS-IS, and the area number is
49.0001. R3 and R6 run IS-IS, and the area number is 49.0002. Within AS 65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, of which R2 and R5 are RRs, and R1, R4, R3, and R6 are clients. IBGP neighbor relationships are all established using the Loopback0 interface. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.X.X, where X is the device number. R1 and R4 introduce the external network 192.168.1.0/24 into BGP through the import method, and R3 and R6 introduce the external network 192.168.2.0/24 into BGP through the import method.
Which of the following descriptions are correct by default? (Multiple choice)
49.0001. R3 and R6 run IS-IS, and the area number is 49.0002. Within AS 65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, of which R2 and R5 are RRs, and R1, R4, R3, and R6 are clients. IBGP neighbor relationships are all established using the Loopback0 interface. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.X.X, where X is the device number. R1 and R4 introduce the external network 192.168.1.0/24 into BGP through the import method, and R3 and R6 introduce the external network 192.168.2.0/24 into BGP through the import method.
Which of the following descriptions are correct by default? (Multiple choice)
Correct Answer: A,B,C,D
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Large and midsize enterprise networks can be divided into the access layer, aggregation layer, and core layer. Network engineers need to work out a migration solution for the operations to be performed at any layer, as long as the operations affect services on the live network.
Correct Answer: A
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On the network shown in the figure, the DHCP server function is enabled on GE0/0/0 of R2, and the address pool is an interface address pool.
When GE0/0/0 and GE0/0/1 of R1 function as DHCP clients, only one interface can obtain an IP address by default.
When GE0/0/0 and GE0/0/1 of R1 function as DHCP clients, only one interface can obtain an IP address by default.
Correct Answer: A
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In a BGP/MPLS IP VPN network, when which of the following routing protocols is running between CE and PE, the device can perform route redistribution operations without BGP?
Correct Answer: B
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To prevent attackers from forging BGP messages to attack devices, you can protect devices by configuring the CTSM function to detect the range of TTL values in the IP message header. If a device is configured with "peer xxxx valid-ttl-hops 100", the valid range of TTL values of the detected messages is [(), 255].
Correct Answer:
156
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0
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10