2023 Best H12-821_V1.0-ENU Exam Preparation Material with New Dumps Questions
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NEW QUESTION # 181
Which of the following BGP routing attributes is not a recognized attribute?
- A. AS_ PATH
- B. Origin
- C. MED
- D. Local_Pref
Answer: C
NEW QUESTION # 182
By default, the sending interval of BGP Keepalive messages is () s. (Use Arabic numerals)
Answer:
Explanation:
60
NEW QUESTION # 183
Which of the following descriptions about the Master device in the VRRP protocol is wrong?
- A. When the Master device receives a VRRP message with a lower priority value than its own, it will immediately switch to Backup
- B. Only the Master device will respond to the ARP request for the virtual IP address
- C. The owner of the IP address in normal operation must be the Master device
- D. The Master device will immediately become the Backup when it receives a VRRP packet with the same priority as its own and the IP address of the local interface is smaller than the IP address of the peer interface.
Answer: A
NEW QUESTION # 184
The IPv6 address 2001:FC1A:8BAD:0112:0000:1200:0001/64 is abbreviated
to 2001:FC1A:8BAD:112:0:1200::1/64.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 185
Which is not included in the three elements of the server map table of the USG series firewalls?
- A. Destination port number
- B. Agreement number
- C. Destination IP
- D. Source IP
Answer: D
NEW QUESTION # 186
What are the main maintenance training after project delivery? (Multiple choice)
- A. Routine Maintenance Training
- B. Management and safety production training
- C. Networking and configuration training
- D. Emergency Troubleshooting Training
Answer: A,C,D
NEW QUESTION # 187
Regarding the multicast ASM model and SSM model, which of the following statements are correct?
(Multiple choice)
- A. SSM directly establishes a multicast forwarding tree between the receiver and the multicast source
- B. In the SSM model, the receiver has already known the specific location of the multicast source in advance through other means
- C. Receivers in the ASM model cannot pre-direct the location of the multicast source
- D. SSM and ASM use the same multicast address range
Answer: A,C
NEW QUESTION # 188
What are the main difficulties in cutover? (Multiple choice)
- A. Profitable execution cutover
- B. Minimize the scope of business impact
- C. Risk aversion at its best
- D. Formulate a complete cutover plan
Answer: A,B,C,D
NEW QUESTION # 189
Which of the following advantages of address translation technology is not included?
- A. Address translation can enable many hosts in the internal city network to share a P address to access the Internet
- B. Address translation can enable internal network users (private IP addresses) to access the Internet conveniently
- C. Address translation can shield the users of the internal network and improve the security of the internal network
- D. Address translation can handle the case where the IP header is encrypted
Answer: D
NEW QUESTION # 190
You use a Huawei router as an SSH client to log in to another Huawei router, but the login fails. You suspect that it may be a configuration error on the SSH server side. When checking the cause of the server configuration failure, which of the following items is the most impossible?
- A. The SSH protocol is not bound under the VTY interface of the user interface
- B. The server and client SSH versions are inconsistent
- C. User service type, authentication type, and user authentication service type are not configured
- D. The first SSH authentication function is not enabled
Answer: D
NEW QUESTION # 191
If the router-id is configured in both the system view and the BGP view, BGP uses the router-id in the BGP view because the BGP view has a higher priority.
- A. False
- B. True
Answer: B
NEW QUESTION # 192
Which of the following statements about IGMPv2 routers maintaining segment group membership are correct? (Multiple choice)
- A. After the router sends a general group query message, all receivers need to respond within the maximum response time
- B. The router queries for a specific group
- C. The router maintains a timeout timer for each group membership
- D. After receiving the Leave message, the router immediately removes the members of the group
Answer: B,C
NEW QUESTION # 193
In a large-scale WLAN three-layer network, which of the following statements about the description of the DHCP server is wrong? (Multiple choice)
- A. In a large-scale WLAN network, it is generally recommended to use AC as a DHCP server
- B. In a large-scale WLAN network, it is recommended to deploy an independent DHCP server
- C. In a large-scale WLAN network, the AP can obtain the AC's IP address from the DHCP server through the option43 parameter
- D. In a large VLAN network, the AP can obtain the AC's IP address from the DHCP server through the option60 parameter
Answer: A,D
NEW QUESTION # 194
Part of the configuration of a router is shown in the figure, so which of the following descriptions about this part of the configuration is correct?
[HUAWEI] ip ip-prefix plpermit 10.0.192.0 8 greater-equal 17 less-equal 18
- A. In the 10.0.192.0/8 network segment, the route with a mask length of 19 will match the prefix list, and the matching rule is allowed
- B. In the 10.0.192.0/8 network segment, the route with a mask length of 18 will match the prefix list, and the matching rule is allowed
- C. In the 10.0.192.0/8 network segment, the route with a mask length of 20 will match the prefix list, and the matching rule is allowed
- D. In the 10.0.192.0/8 network segment, the route with a mask length of 21 will match the prefix list, and the matching rule is allowed
Answer: B
NEW QUESTION # 195
Which of the following attributes may not be included in the Update message of a BGP route?
(Multiple choice)
- A. Local_Preference
- B. 0rigin
- C. AS_Path
- D. MED
Answer: A,D
NEW QUESTION # 196
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