[2023] H12-821_V1.0-ENU Exam Dumps, Test Engine Practice Test Questions
Pass H12-821_V1.0-ENU exam [Aug 23, 2023] Updated 966 Questions
NEW QUESTION # 232
In SSM, which version of IGMP needs to be used?
- A. IGMPv1
- B. IGMPv2
d. IGMPv4 - C. IGMPv3
Answer: C
NEW QUESTION # 233
A router running IS-IS outputs the information as shown in figure, which of the following statements is correct? (Multiple choice)
- A. The S4/0/0 interface of this router has established the neighbor relationships of Leve1-1 and Level-2 at the same time
- B. The GE0/0/0 interface of this router has established a neighbor relationship between Leve1-1 and Leve1-2 at the same time
- C. The GE0/0/0 interface of this router only establishes the neighbor relationship of Leve1-1
- D. The S4/0/0 interface of this router only establishes the neighbor relationship of Leve1-1
Answer: A,B
NEW QUESTION # 234
When the payload is an ICMPv6 message, if the extension header is not considered, what is the value of the Next Header field in the IPv6 header?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 235
A switch will join the stack system, so the stack ID is manually configured to be 2 in advance, but after joining the stack system, the stack system assigns the stack ID to the switch to be 3 , and the GE0/0/2 interface of the switch is added to the stack system The interface number is GE___.
Answer:
Explanation:
3/0/2
NEW QUESTION # 236
Which of the following statements about stacked MAD detection is wrong?
- A. MAD detection methods are divided into direct connection detection and proxy detection
- B. MAD direct connection detection can use the full-mesh method through the intermediate device leaf
- C. When the stacking systems act as agents for each other to perform MAD detection, the two stacking systems can use the same Domain ID
- D. MAD proxy detection requires that all stack member Betta proxy devices are connected, and the connected links are added to an Eth -Tunk
Answer: C
NEW QUESTION # 237
How does an IGMPv2 router maintain network segment group membership? (Multiple choice)
- A. After receiving the eave message, the router immediately deletes the group membership
- B. The router maintains a timeout timer for each group membership. If the receiver host is received, the timer is refreshed. If the timer expires, the group membership is deleted.
- C. The router periodically sends a Query message, and the receiver host reports a Report message after receiving the Query message
- D. The router will query for a specific group
Answer: B,C,D
NEW QUESTION # 238
Which of the following types of equipment is suitable for Huawei IP wide-area bearer network solution?
- A. CE12804
- B. NetEngine AR6000
- C. AirEngine 5760-22w
- D. NetEngine 8000
Answer: D
NEW QUESTION # 239
Which of the following are the advantages of electing DR/BDR in the MA network? (Multiple choice)
- A. Facilitate the synchronization of link states
- B. Reduce Duplicate Traffic
- C. No need for multicast packets to maintain neighbor status
- D. OSPF neighbors can be established as long as TCP is reachable
Answer: A,B
NEW QUESTION # 240
After dividing an interface of the firewall into the Untrust security zone, the interface belongs to the Untrust zone and no longer belongs to the Local zone
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 241
The traffic policy supports calling on the interface, but only supports calling the traffic policy in the outbound direction of the interface.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 242
Which of the following reasons may cause the IS-IS neighbor relationship failure? (Multiple choice)
- A. The IS-IS Level-1 at both ends of the link does not match
- B. The IP addresses of the interfaces at both ends of the link are not on the same network segment
- C. When establishing an IS-IS Level-1 neighbor relationship, the area addresses of the devices at both ends of the link do not match
- D. The System IDs configured on the devices at both ends of the link are the same
Answer: A,B,C,D
NEW QUESTION # 243
SA (Security Association) is a parameter that must be negotiated when an IPsec tunnel is established, so which of the following parameters is used to uniquely identify SA? (Multiple choice)
- A. Source MAC address
- B. Destination IP address
- C. SPI (Security Parameter Index)
- D. Source IP address
- E. Security Protocol Number
- F. Header checksum of the network layer header
Answer: B,D,E
NEW QUESTION # 244
In route-policy, what are the BGP attributes that can be used in the apply clause? (Multiple choice)
- A. MED
- B. AS-Path
- C. Local-Preference
- D. Tag
Answer: A,B,C
NEW QUESTION # 245
By default, the interval for sending BGP Keepalive packets is () s. (using Arabic numerals)
Answer:
Explanation:
60
NEW QUESTION # 246
In the N+1 backup network of WLAN, which of the following statements about the application of option43 is correct? (Multiple choice)
- A. The command to configure the IP addresses of the active AC and the standby AC in the option43 parameter field of the DHCP server is option43 sub-0ption 2 ip-address ip-address &<1-8>
- B. To configure the option 43 field, you need to notify the AP of the IP addresses of its active AC and standby AC, and also need to notify the IP addresses of other active AC.
- C. After configuring the option 43 field, the AP will only send unicast Discovery Request messages to the AC IP address advertised by option 43
- D. If the AC with the IP address advertised by option 43 does not respond to the AP, the AP will immediately fail to discover the AC
Answer: A,C
NEW QUESTION # 247
Which of the following descriptions about the default sending time interval of BFD detection packets is correct?
- A. The default sending interval is 5 milliseconds
- B. The default sending interval is 1000 milliseconds
- C. The default sending interval is 10 milliseconds
- D. The default sending interval is 100 milliseconds
Answer: B
NEW QUESTION # 248
Which of the following descriptions about AS attributes in BGP is wrong?
- A. AS_Set attribute is an ordered AS_Path attribute
- B. AS_Path is a recognized must-follow attribute
- C. When the BGP Speaker advertises this route to the IBGP peer, it will not change the AS_Path attribute related to this route
- D. In order to avoid routing loops that may be caused by route aggregation, BGP designed the AS_Set attribute
Answer: A
NEW QUESTION # 249
As shown in the figure, a return summary route 10.0.0.0/24 is configured on the border route RT1, the next hop points to RT2, and a default route to the external network is configured at the same time. At this time, a routing black hole will appear. Which of the following statements are correct about the routing black hole? (Multiple choice)
[Extranet]--AR1--AR2----SW1-PC1/PC2 (10.1.1.1-2/24)
- A. Configuring black hole routing can solve the routing black hole problem
- B. Precise routing summary can avoid routing black holes
- C. If a terminal in the network sends a data packet to a network segment that does not appear on the internal network, a loop will occur
- D. Routing black holes have no impact on the network and can not be dealt with
Answer: A,B,C
NEW QUESTION # 250
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