H12-821_V1.0 Free Study Guide! with New Update 62 Exam Questions [Q27-Q49]

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H12-821_V1.0 Free Study Guide! with New Update 62 Exam Questions

Get up-to-date Real Exam Questions for H12-821_V1.0 UPDATED [2023]

The Huawei H12-821_V1.0 certification exam is a comprehensive exam that covers a wide range of topics related to data communication. It is ideal for IT professionals who are looking to advance their careers in this field and who want to demonstrate their expertise to potential employers. The exam is also suitable for network engineers, network administrators, and other IT professionals who are responsible for designing, building, and managing data communication networks. With the Huawei H12-821_V1.0 certification, IT professionals can enhance their skills and knowledge and increase their value in the job market.

The Huawei H12-821_V1.0 certification exam consists of 60 questions that are divided into multiple-choice and scenario-based questions. The exam duration is 90 minutes, and the passing score is 600 out of 1000 points. The exam is available in both English and Chinese languages and can be taken at any of the Huawei authorized testing centers worldwide.

Q27. Which of the following attacks is not the network layer attack?

IP spoofing attack

ICMP attack

Smurf attack

ARP spoofing attack

Q28. Which of the following statements about the forwarding plane of a switch is false?

Provides high-speed and non-blocking data channels.

Can encapsulate and decapsulate packets.

Can collect packet statistics.

Consists of main control boards and interface boards.

Q29. A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently. Which of the following environment monitoring functions can be provided by the monitoring plane?

Voltage monitoring

Temperature monitoring

Fan control

System power-on and power-off control

Q30. RSTP provides different functions in different scenarios. Which of the following statements Is false?

After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period

The role of the designated port that is enabled with root protection cannot be changed

If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port and triggers STP calculation

When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does not forward packets. If the port does not receive optimal RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state

Q31. Which of the following statements regarding DR/BDR are false?

In a broadcast network, DR and BDR must be elected. A broadcast network without a DR or BDR cannot operate normally.

DR others listen on the multicast address 224.0.0.5.

All DR others establish neighbor relationships with DR and BDR only.

DR others listen on the network address 224.0.0.6.

Q32. When a routing policy is used to filter routes, which of the following route prefixes will be denied by the IP prefix below?

1.1.1.1/26

1.1.1.2/16

1.1.1.1/32

1.1.1.1/24

Q33. Which of the following statements regarding the stateful inspection firewall is true?

When the stateful inspection firewall checks packets, packets of one same connection are not correlated.

Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.

The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.

The stateful inspection firewall needs to match the rules for each incoming packet.

Q34. The filter-policy 2000 export command is run in an ISIS process. Which of the following statements about the functions of a filter policy is false?

Is used together with the route import function to advertise some imported external routes to neighbors.

If this command is not run, the device by default advertises all routes that ISIS Imports form external routing protocols.

Controls the advertisement of routes generated by the device.

Filters LSPs to be advertised.

Q35. Which of the following statement regarding the display ospf peer command output is true?

Address: 10.1,1.1 Indicates that the local interface address is 10.1.1.1.

Through negotiation during DD packet exchange, the local end becomes the slave.

Router ID indicates that the local router ID Is 10.1.1.1.

The DR address is 10.1.1.1

Q36. The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.

TRUE

FALSE

Q37. Which of the following statements regarding the BGP error display of a router false?

The error may be caused by the incorrect neighbor address.

The neighbor address of this router is 10.1.1.5.

Error Type indicates that the BGP error is caused by the neighbor relationship error.

The error occurred at 12:40:39 on March 22, 2010.

Q38. Which of the following statements is false, based on the following IGMP information on an interface of RTA?

The interval for sending group-specific Query messages is 60s.

The maximum time for response to Query messages is 10s.

The IP address of the interface is 192.168.1.1.

The IGMP version is IGMPV2.

Q39. Which of the following statements regarding BGP route advertisement are false?

All the BGP routes learned from all BGP peer will be advertised to other BGP peers.

Only the optimal routes preferred by BGP can be advertised to other BGP peers.

By default, the routes learned from an IBGP peer will not be forwarded to other IBGP peers.

Only the routes learned from IGPs can be advertised to other BGP peers.

Q40. Four routers run ISIS and have established adjacencies. The area IDs and router levels are marked in the following figure. If route leaking is configured on R3, which of the following is the cost of the route from R4 to 10.0.2.2/32?

Q41. As shown in the following figure, a new AP is deployed In dual link MSB networking (load balancing mode).
Which AC will the connect to?

AC1

Random access

None

AC2

Q42. Which of the following statements regarding the firewall zone security level is false?

The configured security level cannot be changed.

Two zones cannot be configured with the same security level.

The default security level of the new zone is 1.

Only the security level of the user-defined zone can be configured.

Q43. Which Of the following IEEE 802.11 standards is also known as Wi-Fi 6?

802.11ac

802.11n

802.11ax

802.11b

Q44. As shown in the figure, SWA, SWB, SWC, and SWD run the Rapid Spanning Tree Protocol (RSTP). Which of the following statements are true?

Once receiving OPOUs, the edge port re-partlci pates in the calculation of the spanning tree.

After a port is Configured as an edge port, the port can quickly enter the Forwarding state.

You can enable the edge port on SWD’s GEO/0/2 connected to the terminal so that this port can quickly enter the Forwarding state.

You can enable the edge port on SWC’s GE0/0/2 connected to the terminal so that this port can quickly enter the forwarding state.

Q45. OSPF supports area authentication and interface authentication. If both authentication modes are configured, Interface authentication takes preference over area authentication.

TRUE

FALSE

Q46. Which of the following statements is false?

If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.

A device with a higher router priority has a higher election priority.

When a router with the highest router priority joins an OSPF network, this router will become the new DR.

If two devices have the same router priority, the device with a larger router ID has a higher election priority.

Q47. To inject IGP routes into BGP routes, you can only use the network command.

TRUE

FALSE

Q48. BFD control packets are encapsulated in UDP packets for transmission. What is the destination port number of multi-hop BFD control packets?

4784

3784

5784

2784

Q49. Which of the following statements regarding the summary automatic command and BGP route summarization is false?

After this command is configured, BGP sends only the summarized routes to peers

This command is used to implement automatic summarization. Automatic summarization takes precedence over manual summarization

This command enables automatic summarization for the locally imported routes

After this command is configured, BGP summarizes routes based on natural network segments

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