Try H12-821_V1.0-ENU Free Now! Real Exam Question Answers Updated [Mar 05, 2023]

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NEW QUESTION 219
When configuring the BGP, if such a warning is generated: " BGPI6ESTABLISHED:OID[oid] The BGP FSM enters the Establishedstate", which of the following description is true?

• A. Explain that this type of alarm is generated due to TCP problems
• B. The warning message is abnormal and must be dealt with
• C. Indicates that the BGP neighbor has been established
• D. Explain that there is a problem due to OPEN message negotiation between BGP neighbors

Answer: C

 

NEW QUESTION 220
When the stateful inspection firewall forwarding a subsequent packet (non-first packet), which is mainly based on the following items?

• A. MAC address table
• B. Session table
• C. OFIB table
• D. Route table

Answer: B

 

NEW QUESTION 221
How long is the default DHCP address pool lease period?

• A. 1 hour
• B. 1 week
• C. 1 day
• D. 1 month

Answer: C

 

NEW QUESTION 222
Which of the following values can be set for the security level of the customized security zone of the USG series firewall? (Multiple choice)

• A. 0
• B. 1
• C. 2
• D. 3

Answer: A,D

 

NEW QUESTION 223
What is the role of the Hello message in PIM-SM? (Multiple choice)

• A. Establish and maintain neighbor relations
• B. Election network segment BDR
• C. Register with RP
• D. Neighbors' capability negotiation

Answer: A,D

 

NEW QUESTION 224
The RSTP protocol defines different port states, including Discarding and Learning. Which descriptions of these two port states are correct? (Multiple choice)

• A. Ports in the Learning state do not learn the MAC address table
• B. Ports in the Discarding state and the earning state do not learn the MAC address table
• C. The port in the Discarding state does not learn the MAC address table
• D. Ports in these two states do not forward data frames

Answer: C,D

 

NEW QUESTION 225
The following statements about different types of firewalls, which is wrong?

• A. The stateful inspection firewall needs to be configured with security policies in both the " go " and " back " directions of packets
• B. The packet filtering firewall must perform ACL matching check for each data packet passing through the firewall
• C. Stateful inspection firewall only checks the security policy of the first packet that does not hit the session
• D. Proxy firewall proxy business between internal network and external network users

Answer: A

 

NEW QUESTION 226
If the DR Priority is set to 0, then in the OSPF routing domain, the router is allowed to be elected as DR or BDR, but with the lowest priority.

• A. FALSE
• B. TRUE

Answer: A

 

NEW QUESTION 227
Which types of messages does the BGP protocol support? (Multiple choice)

• A. Hello
• B. Keepalive
• C. Update
• D. Open

Answer: B,C,D

 

NEW QUESTION 228
When the Hold time supported by two BGP neighbors is inconsistent, the neighbors will negotiate to adopt the lowest Hold time interval that both ends can support.

• A. FALSE
• B. TRUE

Answer: B

 

NEW QUESTION 229
One of the features of OSPF is that it only supports MD5 authentication.

• A. True
• B. False

Answer: B

 

NEW QUESTION 230
Which of the following regarding the stacked MAD detection is false?

• A. MAD direct connection detection can pass through the intermediate device, also can adopt the full-mesh method
• B. When stacking systems act as agents for each other to perform MAD detection, the two stacking systems can use the same Domain ID
• C. MAD proxy detection requires all stack members connected to the proxy device, and added the linked link to a Eth-Tunk
• D. MAD detection methods are divided into direct connection detection and proxy detection

Answer: B

 

NEW QUESTION 231
Which statement about IGMP Proxy is correct? (Multiple choice)

• A. IGMP Proxy can detect link status in conjunction with NOA to achieve rapid switching between active and standby links
• B. The downstream connection of the IGMP Proxy device generates multicast forwarding entries based on the information of member hosts joining/leaving the multicast group
• C. The IGMP Proxy device cannot replace the IGMP querier to send query messages to downstream member hosts to maintain group membership
• D. IGMP Proxy is usually deployed on the device between the member hosts that access the device

Answer: A,B,D

 

NEW QUESTION 232
In the MAC-based Portal authentication scenario, when a user successfully performs Portal authentication, he can disconnect from the network and reconnect within a certain period of time, and 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 233
About the description of IGMP Snooping working mechanism, which of the following statement is true?

• A. If a host sends an IGMP host report message, the switch will delete the multicast entry corresponding to the host
• B. When IGMP Snooping is not running, multicast messages will be broadcast on the layer 2. After IGMP Snooping is running, the messages will no longer be broadcast on the layer 2, but will be multicast on the layer 2.
• C. If the host sends an IGMP leave message, the switch will add the host to the corresponding multicast table
• D. The Layer 2 switch establishes and maintains the PIM routing table at Layer 2 by continuously monitoring IGMP messages

Answer: B

 

NEW QUESTION 234
Regarding the accompanying business, which of the following statements is correct? (Multiple choice)

• A. The controller is not only the certification center in the campus network, but also the management center of business strategies
• B. The administrator can execute the business strategy on the device in the controller system-manage the entire network strategy
• C. In the free mobility solution, the administrator does not need to repeat the configuration for each device
• D. The administrator does not need to care about the user's IP address when configuring the policy

Answer: A,B,C,D

 

NEW QUESTION 235
When the MTU of the interconnection interface of the two routers in the broadcast network does not match, and the interface is configured with ospf mtu-enablet, which of the following description about the status change of the neighbor relationship between the two routers is true?

• A. The neighbor relationship status of the two devices stays in the Init state
• B. The neighbor relationship between two devices can enter Full
• C. The neighbor relationship between the two devices stays at Exstart
• D. The neighbor relationship status of the two devices stays at 2-way

Answer: C

 

NEW QUESTION 236
Which of the following default route delivery methods does OSPF support? (Multiple choice)

• A. Can only be issued by force
• B. Can be sent up and down in ABR
• C. Can be sent up and down in ASBR
• D. Can be issued non-mandatory

Answer: B,C,D

 

NEW QUESTION 237
Which of the following routing prefixes meet the following IP-Prefix conditions? (Multiple choice)
[HUAWEI] ip ip-prefix test index 10 permit 20.0.0.0 16 greater equal 24 less-equal 28

• A. 20.0.1.0/25
• B. 20.0.1.0/23
• C. 20.0.1.0/28
• D. 20.0.1.0/24

Answer: A,C,D

 

NEW QUESTION 238
In the RSTP protocol, when the network topology changes, the mechanism for responding to changes in the topology is?

• A. Delete the entire MAC address table
• B. Partial deletion of the MAC address table
• C. Modify the lifetime of the MAC address table
• D. The MAC table remains unchanged

Answer: B

 

NEW QUESTION 239
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