H12-261-ENU Dumps - Grab Out For [NEW-2021] Huawei Exam
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NEW QUESTION 185
To view the routing table of router R1, execute the command "display ip routing-table" on the route R1. Router R1 runs OSPF. Which of the following is true about the OSPF information in the routing table?
- A. In the routing table, all types of LSAs correspond to unique destination addresses.
- B. In the routing table, the routing entry identified by the "O_IA" identifier is the intraregional routing.
- C. In the routing table, the routing entry identified by the "OSPF" identifier are learned through the Type 7 LSA imported from other processes to OSPF.
- D. In the routing table, the routing entry identified by the "O_ASE" identifier indicates that the entry can only be learned through routing.
- E. In the routing table, the routing entry identified by the "O_ASE" identifier indicates that the entry was learned through a Type 1 LSA or a Type 2 LSA.
Answer: D
NEW QUESTION 186
As shown in the figure, an OSPF network is set up by the company. The links in the figure form OSPF adjacencies. All OSPF devices announce their own loopback addresses. One day S1-R2 and S2-R1 two links suddenly failed. In order to check whether the network is running normally, the engineer performed a device status check. Which of the following descriptions are correct? (Multiple Choice)
- A. R5 can learn the loopback route of R2 normally.
- B. R3 can learn the loopback route of R2 normally.
- C. R1 can learn the loopback route of R2 normally.
- D. R3 cannot learn the loopback route of R2.
Answer: A,D
NEW QUESTION 187
Use the ip as-path-filter as-path-filter-number {deny | permit} regular-expression command to configure the as-path filter.
In this command, multiple clauses can form an as-path-filter statement.
So what is the relationship between multiple statements?
- A. Relationship or
- B. The routes are matched in order and the route needs to match all the clauses.
- C. Relationship with
- D. The routes are matched in order. When a route matches a clause, it no longer matches downwards.
Answer: D
NEW QUESTION 188
Mainstream second-tier technologies include VXLAN, TRILL, NVGRE and MPLS.
- A. True
- B. False
Answer: A
NEW QUESTION 189
Which of the following types of packets is required to implement virtual machine migration in the BGP EVPN distributed gateway scenario?
- A. Type3
- B. Type5
- C. Type4
- D. Type1
- E. Type2
Answer: E
NEW QUESTION 190
Which of the following statements is true about the database synchronization process on an IS-IS broadcast network?
- A. As the DIS, R2 does not receive the PSNP requests from other routers.
- B. As the DIS, R2 sends a CSNP packet periodically.
- C. R1 and R3 maintain the database consistency by sending PSNP packets periodically.
- D. The interval at which R2, as the DIS, sends Hello packets is three times that of other routers.
Answer: B
NEW QUESTION 191
As shown in the configuration, if the administrator configures OSPF on R1 but R1 cannot learn the routes of other routers, the possible reason is (). (Multiple choice)
[R1]ospf [Rl-ospf-1]area 2 [R1-ospf-1-area-0.0.0.2]network 10.0.13.1 0.0.0.0
- A. This router is not configured with authentication, but the neighbor router is configured with authentication.
- B. The router's announcement network address does not match the interface mask.
- C. This router is not configured with an OSPF process ID.
- D. Area ID configured by the router and area ID of its neighboring router is different.
Answer: A,D
NEW QUESTION 192
Command ip ip-prefix ip-prefix-name [index index-number] { permit | deny } ipv4-address mask-length [ match-network ] [ greater-equal greater-equal-value ] [ less-equal less- Equal-value ] is used to configure ip-prefix-. If 1ess -equal- of a prefix list has been specified, but greater-equal4- is not specified, what is the range of the prefix?
- A. [mask-length, less-equal-value]
- B. No restrictions
- C. [less-equal-value,32]
- D. [0, less-equal-value]
Answer: A
NEW QUESTION 193
An engineer performs an import operation on an OSPF router in a company network. Which of the following statement about the introduction of a route LSA is correct? (Multiple choice)
- A. link state id is set to the destination network segment address
- B. netmask is set to 0
- C. Use link state id and advertising Router to uniquely identify an LSA
- D. The Advertising Route is set to the router-id of the ASBR.
Answer: A,D
NEW QUESTION 194
If the default route is not used in the local IP routing table, the default route-import command is used to advertise the default route to the BGP peer (group).
- A. True
- B. False
Answer: B
NEW QUESTION 195
In an existing OSPF network, which type of LSA will cause SPF calculation? (Multiple Choice)
- A. Type 3 LSA
- B. Type 5 LSA
- C. Type 2 LSA
- D. Type 4 LSA
- E. Type 1 LSA
Answer: C,E
NEW QUESTION 196
The router HW1 exists as an MPLS LSR router in the network of the operator HW. The router receives a packet carrying a label, but the label entry does not exist in its LFIB. So how does the router handle the packet?
- A. Router HW1 will strip the label and find the IP destination address of the FIB.
- B. Router HW1 will forward the packet using the default label.
- C. Router HW1 will discard the packet.
- D. Router HW1 uses LDP to create an LSP and creates a new path for the label carried in the packet in the LFIB.
Answer: C
NEW QUESTION 197
The network administrator is ready to use the 6to4 automatic tunnel to carry IPv6 data on the IPv4 network. The IPv4 address of the router interface is 138.14.85.210, so the corresponding tunnel address is 2001:8a0e:55d2:1:230:65ff: fe2c:9a6.
- A. True
- B. False
Answer: B
NEW QUESTION 198
Which of the following advanced features does BGP EVPN support?
- A. VXLAN Qos
- B. Multi-live gateway
- C. VRRP over VXLAN
- D. ARP broadcast suppression
Answer: B,D
NEW QUESTION 199
Which of the following statements about the BFD one-armed echo function are correct? (Multiple Choice)
- A. After the BFD one-armed echo function is enabled, the destination IP address and source IP address of the BFD packets are the same.
- B. The BFD one-armed echo function must be configured with a local identifier and a remote identifier.
- C. The default destination IP address of the BFD one-armed echo function protocol packet is 224.0.0.184.
- D. The BFD one-armed echo function is applicable to scenarios where one device supports BFD and the other device does not.
Answer: A,D
NEW QUESTION 200
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