[Apr-2025] Study resources for the Valid H12-821_V1.0-ENU Braindumps!
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Huawei H12-821_V1.0-ENU certification exam is a comprehensive test that requires in-depth knowledge and understanding of the latest data communication technologies. It is designed to validate the skills and expertise of networking professionals who are responsible for designing, implementing, and maintaining complex data communication networks. HCIP-Datacom-Core Technology V1.0 certification is recognized globally, and it is a valuable asset for individuals who are seeking career advancement in the networking industry.
Huawei H12-821_V1.0-ENU exam is a comprehensive exam that covers a wide range of topics related to data communication. H12-821_V1.0-ENU exam consists of multiple-choice questions that test the candidate's knowledge of key concepts, as well as scenarios that test their ability to apply those concepts in real-world situations. H12-821_V1.0-ENU exam is designed to be challenging, but not impossible, giving candidates the opportunity to demonstrate their knowledge and skills in the field of data communication.
NEW QUESTION # 203
Two routers running IS-IS can only establish an adjacency relationship if the time interval of lH transmission is the same
- A. True
- B. False
Answer: B
NEW QUESTION # 204
Which one of the following descriptions of the trigger mechanism of 802.1X authentication is correct? (Multiple choice)
- A. 802.1X clients can trigger authentication by multicast or broadcast
- B. 802.1X authentication can only be initiated by the client
- C. The authentication device can trigger authentication in multicast or unicast mode
- D. 802.1X authentication cannot be initiated by an authentication device (such as an 802.1 switch)
Answer: A,C
NEW QUESTION # 205
Which of the following working mechanisms are included in PIM-DM? (Multiple choice)
- A. Grafting
- B. Pruning
- C. Diffusion
- D. Status refresh
Answer: A,B,C,D
NEW QUESTION # 206
In IGMPv2, the querier can send query messages to a specified multicast group in the shared network segment to query whether there are members in the multicast group.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 207
IGMP SSMM APPING does not process IGMPv3 report messages. To ensure that hosts running any version of IGMP on the same network segment can obtain SSM services, it is necessary to run IGMPv3 on the interface of the multicast router connected to the network segment where the member hosts are located.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 208
As shown in the figure below, the firewall receives a message from PC1 to PC2 , which of the following statements is correct ?
- A. The default security policy of the firewall is match all, and the action is Deny
- B. The message will match the new security policy rule2, and the firewall will forward the message
- C. The message will match the security policy rule 1
- D. The packet cannot match the security policies rule1 and rule2, it will match the default policy of the firewall, and the firewall will forward the packet
Answer: B
NEW QUESTION # 209
Which of the following is not the role of a stack switch?
- A. Master
- B. Slave
- C. Standby
- D. Backup
Answer: C
NEW QUESTION # 210
Two routers R1 and R2 are directly connected. If you want to establish an OSPF adjacency relationship, R1 uses MD5 port authentication, and R2 uses MD5 area authentication. If the passwords are the same, the two devices can establish an OSPF adjacency relationship.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 211
By default, the sending interval of BFD packets is ______ milliseconds, the receiving interval is
______ milliseconds, and the local detection is ______ times. (Please fill in Arabic characters)
Answer:
Explanation:
1000|1000|3
NEW QUESTION # 212
BFD detection can be linked with which of the following modules to speed up fault detection?
(Multiple choice)
- A. BGP
- B. Static routing
- C. VRRP
- D. OSPF
Answer: A,B,C,D
NEW QUESTION # 213
Which of the following descriptions about the firewall is wrong?
- A. The three-layer firewall is the same as the router, and the data packets need to be forwarded through the routing table
- B. Traditional packet filtering firewalls are difficult to adapt to dynamic security requirements
- C. Because routers can also use ACLs, routers can replace packet filtering firewalls
- D. The firewall has an SPU module, which is used to realize the security function of the firewall
Answer: C
NEW QUESTION # 214
Which of the following descriptions about the next-hop application of routing in BGP are correct?
(Multiple choice)
- A. The next hop attribute of BGP is different from that of IGP, not necessarily the IP address of the adjacent device
- B. By default, when BGP advertises imported IGP routes to IBGP peers, it changes the next hop attribute to its own interface address
- C. By default, no next-hop iteration routing policy is configured
- D. You can use the peer X.X.X.Xnext-hop-local command to modify the next hop address when advertising routes to lBGP peers
Answer: A,D
NEW QUESTION # 215
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. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 216
Which of the following descriptions of multicast routing is correct? (Multiple choice)
- A. Multicast routing protocols include IGMP protocol
- B. Multicast routing protocols are used to establish and maintain multicast routes and forward multicast packets correctly and efficiently.
- C. Multicast routing forms a one-way loop-free data transmission path from the data source to multiple receivers, that is, the multicast distribution tree
- D. Multicast routing protocols are divided into intra-domain multicast routing protocols and inter-domain multicast routing protocols.
Answer: B,C,D
NEW QUESTION # 217
The output information of a router is below, which is correct about this information?
- A. The next hop of the route to the target network 1.1.1.0/24 is 1.1.1.1, and the route is optimal
- B. The MED value of the route to the destination network 1.1.1.0/24 is 100
- C. The MED value of the route to the destination network 5.1.1.0/24 is 50
- D. The next hop of the route to the target network 5.1.1.0/24 is 1.1.1.1, and the route is optimal
Answer: D
NEW QUESTION # 218
Which of the following descriptions about IP address owners in VRRP are correct? (Multiple choice)
- A. The owner of the IP address must be the Master
- B. Users can manually specify the IP address owner by changing the priority
- C. The priority of the IP address owner must be 255
- D. The interface IP address of the IP address owner must be the same as the IP address of the virtual router.
Answer: A,C,D
NEW QUESTION # 219
In IGMPv2, what is the default maximum response time for general group queries in seconds?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 220
Which of the following are the mechanisms supported by both IGMPv2 and IGMPv3? (Multiple choice)
- A. Specific Group Queries
- B. Specify source query
- C. Querier Election
- D. Members leave
Answer: A,C,D
NEW QUESTION # 221
RSTP converges faster than STP because of? (Multiple choice)
- A. In RSTP, after a port is elected as a designated port, it will first enter the Discarding state, and then quickly enter the Forwarding state through the Proposal/Agreement mechanism
- B. The concept of edge port is introduced in RSTP. The edge port does not participate in the RSTP operation, and can be directly transferred from Disable to Forwarding state .
- C. If a root port in the network fails, the optimal Alternate port in the network will become the root port and enter the Forwarding state
- D. If a designated port in the network fails, the optimal Alternate port in the network will become the designated port and enter the Forwarding state
Answer: A,B,C
NEW QUESTION # 222
Through the linkage between BFD and MPLS LSP, BFD can be created dynamically to detect the connectivity of static or dynamic LSP .
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 223
Regarding the default routes of each protocol, which of the following description is wrong?
- A. OSPF cannot deliver the default route
- B. Static default routing can be configured
- C. BGP can deliver default routes
- D. ISIS can issue default routes
Answer: A
NEW QUESTION # 224
What does the display current-configuration | include vlan command mean?
- A. Check the IP address of the VLANIF interface
- B. View the physical interface information bound to each VLAN
- C. Check which VLANs are currently created
- D. View all configurations containing the "VLAN" keyword
Answer: D
NEW QUESTION # 225
As shown in the picture, which of the following statements is correct?
- A. R1 and R2 cannot establish an adjacency relationship because the OSPF process numbers are inconsistent.
- B. R1 and R2 can establish an adjacency relationship, but cannot complete route calculation.
- C. R1 and 2 cannot establish an adjacency system, because the network configuration of the interface is inconsistent.
- D. R1 and R2 can establish an adjacency relationship and complete route calculation.
Answer: B
NEW QUESTION # 226
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