Practice HCIP-Datacom H12-821_V1.0-ENU exam. Online Exam Practice Tests with detailed explanations! Pass H12-821_V1.0-ENU with confidence!
H12-821_V1.0-ENU - HCIP-Datacom-Core Technology V1.0 Practice Tests 2024 | Test4Sure
NEW QUESTION # 344
Which of the following are sources of demand for network optimization? (Multiple choice)
- A. Enterprise information security needs, adding new security equipment
- B. The environmental problem of a weak electric well, the signal line is seriously aging, and needs to be replaced intensively
- C. After long-term network maintenance, put forward relevant suggestions for some problems and improvement points summarized, and carry out centralized rectification
- D. It is necessary to carry out video conferencing services in the network, and it is necessary to add switching equipment that supports Layer 2 multicast kinetic energy
Answer: A,B,C,D
NEW QUESTION # 345
Which of the following statements about stacked MAD detection is wrong?
- A. MAD direct connection detection can use the full-mesh method through the intermediate device leaf
- B. MAD proxy detection requires that all stack member Betta proxy devices are connected, and the connected links are added to an Eth -Tunk
- C. MAD detection methods are divided into direct connection detection and proxy detection
- D. When the stacking systems act as agents for each other to perform MAD detection, the two stacking systems can use the same Domain ID
Answer: D
NEW QUESTION # 346
In dual-link hot backup, AP will establish a CAPWAP link with the main AC and backup AC.
- A. True
- B. False
Answer: B
NEW QUESTION # 347
In BGP, MED is used as a kind of metric value, which is used to point out the preferred path to enter this AS to the external peer. By default, the router compares the MED values of BGP routes from different AS, and the BGP route with a smaller MED attribute value is better.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 348
In a certain network environment, there are both switches running RSTP and switches running SIP. What will happen to the network? (Multiple choice)
- A. If it is a Huawei switching device, STP will switch to RSTP mode, and after the switching device that can be equipped with RSTP is evacuated from the network, the switching device running STP can be migrated back to the RSTP mode
- B. RSTP and STP are not interoperable and will perform independent operations
- C. RSTP can interoperate with STP, but the advantages of RSTP such as rapid convergence are lost at this time
- D. If it is a Huawei switching equipment, RSTP will switch to STP mode. After the STP switching equipment is evacuated from the network, the switching equipment running RSTP can be migrated back to the RSTP working mode
Answer: C,D
NEW QUESTION # 349
What are the three ways to send IPV4 packets? (Multiple choice)
- A. Broadcast
- B. Unicast
- C. Multicast
- D. Anycast
Answer: A,B,C
NEW QUESTION # 350
A network engineer outputs the following information when troubleshooting the OSPF protocol. Based on this to determine which cause the adjacency relationship cannot be established normally?
- A. Process numbers are discordance
- B. The IP address code of the interface is discordance
- C. Router ID conflict
- D. The area code does not match
Answer: D
NEW QUESTION # 351
Regarding the warning
message "0SPF/2/IFAUTFAIL (OID) [1.3.6.1.2.1.14.16.2.6]:Apacketisreceivedonanon-virtual Interface from a muter whos eauthentication key Or authentication type conflicts with the local authentication key Or authentication type. (IflpAddress=[ipaddress]AddressLesslf=(interflce-index] Processld=[process-id]Routerld=(muter-id)]PacketSrc=[source-ip-address] ConfigErrorType= (error-type) ] PacketType=[packettypel] InstanceName=[linstancename] ) " Which of the following description is wrong?
- A. An error may be caused by a subnet mask mismatch
- B. It may be an error caused by a mismatch in the area code
- C. Errors that may be caused by the HELLO time interval
- D. It may be caused by interface verification and coordination errors
Answer: D
NEW QUESTION # 352
Regarding the description of VRRP load sharing, which is correct? (Multiple choice)
- A. The load sharing method means that multiple routers undertake services at the same time, so the load sharing method requires two or more virtual routers
- B. Load sharing method refers to the establishment of two or more backup groups, and multiple routers carry services at the same time
- C. Multiple virtual routers can be created on one interface of the router, so that the router can be used as a master router in one virtual router, and at the same time as a backup router in other virtual routers.
- D. When configuring priorities, the VRRP masters of the three virtual routers can be on different routers
Answer: B,D
NEW QUESTION # 353
The following is the output information of a router. The correct description of this information is:
- A. The community attribute value carried by the destination network segment 5.1.1.0/24 is no-advertise, indicating that the routing entry cannot be advertised outside the local AS
- B. The community attribute value carried by the destination network segment 1.1.1.0/24 is no-export, indicating that the routing entry cannot be advertised to any BGP neighbors
- C. The community attribute value carried by the destination network segment 1.1.1.0/24 is no-export, indicating that the routing entry can be advertised to any BGP neighbor
- D. The community attribute value carried by the destination network segment 5.1.1.0/24 is no-advertise, indicating that the routing entry cannot be advertised to any other BGP peers
Answer: D
NEW QUESTION # 354
IGMP3 not only supports the general group query of the IGMPv1 version and the specific group query of the IGMPv2 version, but also supports the specified source/group query of the IGMPv3 version.
- A. True
- B. False
Answer: A
NEW QUESTION # 355
What is the BFD version number supported by the VRP version?
- A. Version 2
- B. version 3
- C. Version 1
- D. Version 4
Answer: C
NEW QUESTION # 356
IGMP3 not only supports the past group query of IGMPv1 version and the specific group query of IGMPv2 version, but also supports the specified source/group query of IGMPv3 version
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 357
What are the main types of ISIS Hello messages? (Multiple choice)
- A. P2P LAN IIH
- B. Level-1 LAN IIH
- C. Level-2 LANIH
- D. Level-3 LAN IIH
Answer: A,B,C
NEW QUESTION # 358
In a complex network environment, using an unstructured network troubleshooting process may lead to new faults, making network troubleshooting more difficult.
- A. True
- B. False
Answer: A
NEW QUESTION # 359
Which protocol modules can BFD detection be linked with? (Multiple choice)
- A. OSPF
- B. VRRP
- C. BGP
- D. Static routing
Answer: A,B,C,D
NEW QUESTION # 360
Jack needs to choose a Layer 3 switch with a 100M interface from a series of campus switches provided by Huawei when selecting equipment. Which of the following series of switches should he choose?
- A. S3700
- B. S5700
- C. S2700
- D. S6700
Answer: A
NEW QUESTION # 361
It can be used in a variety of routing protocols. Which of the following routing tool consisting of if-match and apply clauses?
- A. commnityfilter
- B. route-policy
- C. IP-Prefix
- D. as-path-filter
Answer: B
NEW QUESTION # 362
What is the meaning of the display current-configuration | include vlan command?
- A. Check the physical interface information bound under each VLAN
- B. Check which VLANs are currently created
- C. View all configurations containing the "VLAN" keyword
- D. View the IP address of the VLANIF interface
Answer: C
NEW QUESTION # 363
When two routers exchange database information through DD messages, a master-slave relationship is first formed, and the router with a higher DR Priority becomes the master router, and its master-slave bit is determined to be MS.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 364
There are the following states in the process of BGP neighbor establishment. Then the sequence of the state machine to establish a successful connection is:
1. Active
2. OpenConfirm
3. Idle
4. Establish
5. OpenSent
- A. 3-1-5-2-4
- B. 3-1-2-5-4
- C. 3-5-1-2-4
- D. 1-3-5-2-4
Answer: A
NEW QUESTION # 365
The four routers are running IS-S and have established adjacency. The area number and router level are marked as shown in the figure. What is the cost value from R4 to 10.0.2.2/32?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 366
OSPF can support multiple network types. Which of the following network types need to elect DR and BDR? (Multiple choice)
- A. P2P
- B. NBMA
- C. BROADCAST
- D. P2MP
Answer: B,C
NEW QUESTION # 367
As shown in the figure, the forwarding of data traffic before roaming is STA-HAP-upper layer network, the forwarding method is direct forwarding, and the home agent is configured on the AP. After three-layer roaming, what is the direction of data forwarding traffic?
- A. STA-FAP-FAC-HAC-Upper Network
- B. STA-FAP-FAC-HAC-HAP-HAC-Upper Network
- C. STA-FAP-FAC-Upper Network
- D. STA-FAP-FAC-HAC-HAP-Upper Network
Answer: D
NEW QUESTION # 368
What is the process sequence of VLAN Pool assigning VLANs to terminals? (Multiple choice)
- A. The terminal accesses from the divided VLAN
- B. Determine the VLAN Pool and VLAN algorithm bound to the VAP
- C. The terminal accesses the VAP
- D. Assign VLANs to terminals according to the VLAN algorithm
Answer: A,B,C,D
NEW QUESTION # 369
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