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Huawei H12-261 Practice Test - Questions Answers, Page 17

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Which of the following AS-paths can be matched by the AS-Path filter configured using the ip as-path-filter 1 permit ^12.*74$ command?
Which of the following command outputs indicates that a loop has occurred on a switch?
The default SSM group address range is 232.0.0.0/8. Which of the following configurations can be performed to modify the SSM group address range?
In the aggregate ipv4-address {mask | mask-length} [as-set | attribute-policy route-policy-name1 | detail-suppressed | origin-policy route-policy-name2 | suppress-policy route-policy-name3] command, multiple parameters can be used to affect the BGP summarized route and summarization result. Which of the following statements regarding this command are true?
For Huawei S series switches, to control which member switch becomes the master switch of a stack, first power on the switch you wish to be the master switch, and then wait 20 seconds before powering on the other member switches.
Which of the following statements regarding the packet processing method in the MPLS network model are false?
Which of the following statements is true according to the topology shown?
OSPF has been configured on R1 as shown above, but R1 does not learn the routes from any other routers, which of the following are possible causes? (Choose all that apply.)
To reduce the amount of OSPF data and routing information in some areas, OSPF has special area types. Which of the following statements regarding OSPF special areas is true?
The output of the display in vpn-instance verbose command for displaying detailed information about all VPN instances on a network device is as follows. Which of the following statements are false?

Question 161

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Which of the following statements regarding BGP route summarization is true? (Choose two.)

A.
Routes in the local BGP routing table can be manually aggregated.
A.
Routes in the local BGP routing table can be manually aggregated.
Answers
B.
After the aggregate ipv4-address mask command is configured, only summary routes are advertised and specific routes are not advertised.
B.
After the aggregate ipv4-address mask command is configured, only summary routes are advertised and specific routes are not advertised.
Answers
C.
By default, automatic BGP route summarization is enabled.
C.
By default, automatic BGP route summarization is enabled.
Answers
D.
BGP supports manual aggregate and automatic summarization of IPv6 routes.
D.
BGP supports manual aggregate and automatic summarization of IPv6 routes.
Answers
Suggested answer: A, D

Question 162

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The IS-IS overload bit is set on R3. Which of the following statements are true? (Choose three.)

A.
Before the timeout of the overload timer on R3, R1 and R2 do not add the LSPs generated by R3 to the SPF tree.
A.
Before the timeout of the overload timer on R3, R1 and R2 do not add the LSPs generated by R3 to the SPF tree.
Answers
B.
The direct route of R3 is ignored by R1 and R2 due to the setting of the overload bit.
B.
The direct route of R3 is ignored by R1 and R2 due to the setting of the overload bit.
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C.
LSPs of R3 cannot be flooded to R1 and R2.
C.
LSPs of R3 cannot be flooded to R1 and R2.
Answers
D.
Routes imported to R3 through the import-route command cannot be advertised.
D.
Routes imported to R3 through the import-route command cannot be advertised.
Answers
E.
When a router is experiencing a memory shortage, the system automatically sets the overload bit in the sent LSPs regardless of whether you have the set-overload command.
E.
When a router is experiencing a memory shortage, the system automatically sets the overload bit in the sent LSPs regardless of whether you have the set-overload command.
Answers
Suggested answer: A, C, D

Question 163

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Which of the following statements regarding CHAP authentication in the PPP protocol are true? (Choose three.)

A.
If no user name is configured for the authenticated party, the password does not need to be configured on the interface of the authenticated party.
A.
If no user name is configured for the authenticated party, the password does not need to be configured on the interface of the authenticated party.
Answers
B.
The MD5 algorithm is used to calculate a hash based on the authentication sequence ID, a random number, and the key.
B.
The MD5 algorithm is used to calculate a hash based on the authentication sequence ID, a random number, and the key.
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C.
Authentication requires three-way handshake. Only the user name is transmitted on the network, not the password.
C.
Authentication requires three-way handshake. Only the user name is transmitted on the network, not the password.
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D.
The user name must be configured on the interface of the authenticated party.
D.
The user name must be configured on the interface of the authenticated party.
Answers
Suggested answer: B, C, D

Question 164

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Which of the following statements regarding 802.1s deployment is true?

A.
Multiple bridges share a spanning tree instance.
A.
Multiple bridges share a spanning tree instance.
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B.
Each VLAN owns a spanning tree instance.
B.
Each VLAN owns a spanning tree instance.
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C.
Multiple VLANs share a spanning tree instance.
C.
Multiple VLANs share a spanning tree instance.
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D.
All VLANs share a spanning tree instance.
D.
All VLANs share a spanning tree instance.
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Suggested answer: B

Question 165

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Based on the key configurations, as shown in the figure, R1 and R2 establish a Level-2 neighbor relationship. Which of the following statements regarding routing entries on R2 are true?

A.
2020:: /64 will be displayed in the IP routing table.
A.
2020:: /64 will be displayed in the IP routing table.
Answers
B.
2021:: /64 will be displayed in the IP routing table.
B.
2021:: /64 will be displayed in the IP routing table.
Answers
C.
2019:: /64 will not be displayed in the IP routing table.
C.
2019:: /64 will not be displayed in the IP routing table.
Answers
D.
2022:: /64 will not be displayed in the IP routing table.
D.
2022:: /64 will not be displayed in the IP routing table.
Answers
Suggested answer: A

Question 166

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For Huawei S series switches, to control which member switch becomes the master switch of a stack, first power on the switch you wish to be the master switch, and then wait 20 seconds before powering on the other member switches.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: A

Explanation:

Reference: https://support.huawei.com/enterprise/en/doc/EDOC1000088745?section=j00b

Question 167

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A network with the typology shown in the figure below is set up in a lab. On the network, SW1 uses the default configurations, and STP disables on SW2. Given this information, which of the following statements is true?

A.
Go/0/2 of SW2 enters the Discarding state.
A.
Go/0/2 of SW2 enters the Discarding state.
Answers
B.
G0/0/1 of SW1 enters the Discarding state.
B.
G0/0/1 of SW1 enters the Discarding state.
Answers
C.
G0/0/1 of SW2 enters the Discarding state.
C.
G0/0/1 of SW2 enters the Discarding state.
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D.
No interface is blocked.
D.
No interface is blocked.
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E.
G0/0/2 of SW1 enters the Discarding state.
E.
G0/0/2 of SW1 enters the Discarding state.
Answers
Suggested answer: E

Question 168

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Huawei switches SWA and SWB are connected through seven physical Ethernet links and are configured with static link aggregation. On SWA, the interface and are configured in the following sequence: Ethernet 1/0/1, Ethernet 1/0/2, Ethernet 1/0/3, Ethernet 1/0/4, Ethernet 1/0/5, Ethernet 1/0/6,

Ethernet 1/0/7. If only six ports are supported in a LAG on SWA and SWB, which of the following statements is true?

A.
If the configurations of different ports are consistent, SWA selects one of the seven ports at random to be the Unselected port of the LAG.
A.
If the configurations of different ports are consistent, SWA selects one of the seven ports at random to be the Unselected port of the LAG.
Answers
B.
If the configurations of different ports are consistent, Ethernet 1/0/6 is the Unselected port of the LAG.
B.
If the configurations of different ports are consistent, Ethernet 1/0/6 is the Unselected port of the LAG.
Answers
C.
If the configurations of different ports are consistent, Ethernet 1/0/7 is the Unselected port of the LAG.
C.
If the configurations of different ports are consistent, Ethernet 1/0/7 is the Unselected port of the LAG.
Answers
D.
If the configurations of different ports are consistent, Ethernet 1/0/1 is the Unselected port of the LAG.
D.
If the configurations of different ports are consistent, Ethernet 1/0/1 is the Unselected port of the LAG.
Answers
Suggested answer: C

Question 169

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An MSTP switch considers an RSTP switch to be an MSTP region that consists of only one switch and parses RST BPDUs into MST BPDUs, in which IRPC is 0.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: A

Question 170

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On an RSTP-enabled switch, if the network topology changes, which of the following statements regarding changes to the Layer 2 forwarding entries learned by the switch is true?

A.
All entries, apart from the entries related to edge ports, are deleted.
A.
All entries, apart from the entries related to edge ports, are deleted.
Answers
B.
If the aging time is set to 15 seconds, all the aged entries are deleted.
B.
If the aging time is set to 15 seconds, all the aged entries are deleted.
Answers
C.
All entries, apart from the entries related to edge ports and the entries related to the port that receives the TC BPDU, are deleted.
C.
All entries, apart from the entries related to edge ports and the entries related to the port that receives the TC BPDU, are deleted.
Answers
D.
All entries are deleted.
D.
All entries are deleted.
Answers
E.
Only the entries related to the port that receives the TC BPDU are deleted.
E.
Only the entries related to the port that receives the TC BPDU are deleted.
Answers
Suggested answer: C
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