[Jan 01, 2024] Fully Updated Free Actual Huawei H12-821_V1.0-ENU Exam Questions
Free H12-821_V1.0-ENU Questions for Huawei H12-821_V1.0-ENU Exam [Jan-2024]
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NEW QUESTION # 334
Which of the following statements about the address used by AC to establish a CAPWAP tunnel in VRRP hot backup is correct?
- A. The physical address of the primary AC
- B. Any address configured in the AC is fine
- C. The physical address of the standby MC
- D. VRRP virtual addresses of the active and standby ACs
Answer: D
NEW QUESTION # 335
Which of the following descriptions about multicast routing is correct? (Multiple choice)
- A. Multicast routing protocol including IGMP protocol
- B. Multicast routing forms a unidirectional loopless data transmission path from the data source to multiple receivers, that is, the multicast distribution tree
- C. Multicast routing protocol is used to establish and maintain multicast routing, and forward multicast data packets correctly and efficiently
- D. Multicast routing protocols are divided into intra-domain multicast routing protocols and inter-domain multicast routing protocols
Answer: B,C,D
NEW QUESTION # 336
Which of following description of the permanent multicast address is wrong?
- A. All routers running OSPF protocol monitor 224.0.0.5
- B. All hosts and routers in the network segment monitor 224.0.0.1
- C. All routers running the PIM protocol monitor 224.0.0.100
- D. All routers monitor 224.0.0.2
Answer: C
NEW QUESTION # 337
Which of the following statement about OSPF neighbor information is incorrect?
- A. The router id of the neighbor is 2.2.2.2
- B. The router id of this router is 1.1.1.1
- C. The address of DR is 10.1.1.1
- D. This router is Master
Answer: D
NEW QUESTION # 338
A BGP router can send incremental BGP routing updates or perform periodic updates.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 339
In the USG series firewalls, what is the security level of the DMZ area?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 340
OSPF can support multiple network types. Which of the following network types need to elect DR and BDR? (Multiple choice)
- A. P2MP
- B. NBMA
- C. P2P
- D. ROADCAST
Answer: B,D
NEW QUESTION # 341
In the Portal authentication scenario based on MAC priority, when the user successfully completes Portal authentication and disconnects from the network within a certain period and reconnects, he can directly access through MAC authentication without entering the username and password to perform Porta1 authentication again.
- A. False
- B. True
Answer: B
NEW QUESTION # 342
Which of the following OSPF messages carry master-slave relationship information?
- A. LSA Request message
- B. Hello message
- C. LSA Update message
- D. D.D message
Answer: D
NEW QUESTION # 343
What message types does OSPF include? (Multiple choice)
- A. Link State DD
- B. Database Description
- C. Link State Request
- D. Hello
Answer: B,C,D
NEW QUESTION # 344
Both policy routing and routing strategy can affect the forwarding process of data packets, but they affect the data packets in different ways. Policy routing is based on policy forwarding, based on the forwarding plane. The routing strategy is based on the control plane, serving routing protocols and routing tables.
- A. False
- B. True
Answer: B
NEW QUESTION # 345
By default, the OSPF port cost is related to the port bandwidth. The calculation formula is bandwidth-reference/bandwidth. The cost is only calculated by OSPF and cannot be changed manually.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 346
Which of the following descriptions of MED is correct? (Multiple choice)
- A. MED is an optional non-transitional attribute
- B. The default value of MED is 100
- C. MED can only be delivered within this AS
- D. The default value of MED is 0
Answer: A,D
NEW QUESTION # 347
Which of the following descriptions about OSPF special areas is wrong?
- A. The difference between the Stub area and the Totally Stub area is that the Stub area allows detailed inter-domain routing
- B. The role of the Totally Stub area is to allow the ABR to advertise Type 3 LSA default routes, and does not allow the existence of external routes of the autonomous system and routes between areas.
- C. The difference between the NSSA area and the Stub area is that the NSSA area allows the introduction of external routes of the autonomous system, and the ASBR advertises Type 7 LSAs to the area.
- D. The difference between the Stub area and the NSSA area is that the Stub area does not allow detailed inter-domain routing
Answer: D
NEW QUESTION # 348
Which of the following parameters are modified, the IS-IS neighbor relationship needs to be re-established? (Multiple choice)
- A. Modify the sending interval of llH on the IS-IS interface
- B. Modify the Cost value of the IS-IS interface
- C. Modify the IF address of the IS-IS interface
- D. Modify the Level of the IS-IS interface
Answer: C,D
NEW QUESTION # 349
In the OSPF routing domain, in broadcast networks and NBMA networks with at least two routers, one router must be designated as DR and the other as BDR.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 350
In multicast routing (*; G) routing table entries can guide message forwarding.
- A. True
- B. False
Answer: B
NEW QUESTION # 351
Which of the following descriptions about BGP, OSPF, IS-IS, and RIP is correct?
- A. OSPF runs on the basis of the IP protocol and uses the protocol number 88
- B. RIP runs on the basis of UDP sessions, and the port number used is 520
- C. IS-IS runs on the basis of the IP protocol, using the protocol number 89
- D. The port number used by the BGP neighbor relationship based on the UDP session is 179
Answer: B
NEW QUESTION # 352
The edge port in RSTP does not need to wait for the forwarding delay, and can directly enter the forwarding state. If the edge port receives the BPDU, the edge port will be directly closed and enter the error down state.
- A. True
- B. False
Answer: B
NEW QUESTION # 353
The ACL configuration on a certain router is shown in the figure, so which of the following items are the addresses that satisfy this condition? (Multiple choice)
- A. 10.1.3.1/32
- B. 10.1.2.1/32
- C. 10.1.1.1/32
- D. 10.1.4.1/32
Answer: A,C
NEW QUESTION # 354
The above information about display ospf peer output, the correct description is:
<Huawei=display ospf peer
OSPF Process 1 with Router ID 10.1.1.2
Neighbors
Area 0.0.0.0 interface 10.1.1.2(Gigabitethernet1/0/0)'s neighbors
Router ID: 10.1.1.1
Address:10.1.1.1
State: Full Mode: Nbr is Slave Priority: 1
DR:10.1.1.1BDR: None PERSON: 0
Dead timer due in 38 sec
Retrans timer interval: 5Neighbor is up for 00: 00:04
Authentication Sequence: [0]
- A. After negotiation during the DD exchange process, the local end becomes the Slave
- B. Address: 10.1.1.1 indicates that the local interface address is 10.1.1.1
- C. The Designated Router (DR) as the address is 10.1.1.1
- D. Router ID indicates that the local router ID is 10.1.1.1
Answer: C
NEW QUESTION # 355
Which of the following descriptions about the OriginatorID attribute in BGP are correct? (Multiple choice)
- A. OriginatorID is a recognized arbitrary attribute
- B. When other BGP Speakers receive this route, they will compare the received OriginatorID with the local RouterID. If the two IDs are the same, BGPSpeaker will ignore this route and do not process it.
- C. When a route is reflected by RR for the first time, RR adds the OriginatorID attribute to this route to identify the originating router of this route
- D. If there are multiple RRs in As, the OriginatorID attribute is created by the first RR
Answer: C,D
NEW QUESTION # 356
As shown in the figure, three first-tier switches are interconnected with one HUB, and the STP function is enabled on the switches. Please refer to the figure below for the STP bridge ID settings of the switches. Others are default configurations.
Which option is incorrect in the following description?
- A. Both ports of SWA are designated ports and are in forwarding state.
- B. SWA is the root bridge in this simple network
- C. The G/0/2 port of SWA is blocked.
- D. The go/1 port of SWC is an Alternate port, which is blocked
Answer: A
NEW QUESTION # 357
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