[Sep-2021] H12-821_V1.0 Dumps Full Questions - Huawei Other Certification Exam Study Guide
Exam Questions and Answers for H12-821_V1.0 Study Guide
NEW QUESTION 18
Which of the following statements about multicast packet forwarding is true?
- A. If a multicast data packet fails the RPF check, the packet must have been received through a sub-optimal interface. However, this interface still receives and forwards the multicast traffic downstream.
- B. In multicast transmission, the destination address of a packet can be the unicast address of a host.
- C. IGMP snooping cannot control the scope of multicast traffic flooding on a Layer 2 network.
- D. The source address of a multicast packet is a unicast address.
Answer: A
NEW QUESTION 19
Compared with STP, RSTP defines the different port states. Which of the following statements regarding discarding and learning states are true?
- A. The port in discarding state does not learn MAC addresses table.
- B. The port In learning stole docs not learn MAC addresses table.
- C. The port in discarding or learning state does not learn MAC addresses
- D. The port In discarding or learning state does not forward data frames.
Answer: C
NEW QUESTION 20
Which of the following routing protocols support the default route through command configuration?
- A. BGP
- B. OSPF
- C. ICMP
- D. IS-IS
Answer: A
NEW QUESTION 21
Which of the following statements regarding the BGP error display of a router false?
- A. The error occurred at 12:40:39 on March 22, 2010.
- B. The neighbor address of this router is 10.1.1.5.
- C. The error may be caused by the incorrect neighbor address.
- D. Error Type indicates that the BGP error is caused by the neighbor relationship error.
Answer: D
NEW QUESTION 22
IGMPV3 not only supports IGMPv1 General Query and IGMPv2 Group-Specific Query, and also IGMPv3 Source/Group-Specific Query.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 23
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?
- A. Fan control
- B. System power-on and power-off control
- C. Temperature monitoring
- D. Voltage monitoring
Answer: C
NEW QUESTION 24
Which of the following statements regarding the summary automatic command and BGP route summarization is false?
- A. This command is used to implement automatic summarization. Automatic summarization takes precedence over manual summarization
- B. This command enables automatic summarization for the locally imported routes
- C. After this command is configured, BGP summarizes routes based on natural network segments
- D. After this command is configured, BGP sends only the summarized routes to peers
Answer: C
NEW QUESTION 25
Which of the following statements regarding different LSA types is false?
- A. LS Request packets contain only LS Type, LS ID, and Advertising Router.
- B. DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence Number.
- C. LS Update packets contain complete LSA information.
- D. LS Ack packets contain complete LSA information.
Answer: C
NEW QUESTION 26
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?
- A. If this command is not run, the device by default advertises all routes that ISIS Imports form external routing protocols.
- B. Controls the advertisement of routes generated by the device.
- C. Is used together with the route import function to advertise some imported external routes to neighbors.
- D. Filters LSPs to be advertised.
Answer: A
NEW QUESTION 27
BFD control packets are encapsulated in UDP packets for transmission. What is the destination port number of multi-hop BFD control packets?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 28
As shown in the figure, SWA, SWB, SWC, and SWD run the Rapid Spanning Tree Protocol (RSTP). Which of the following statements are true?
- A. 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.
- B. After a port is Configured as an edge port, the port can quickly enter the Forwarding state.
- C. Once receiving OPOUs, the edge port re-partlci pates in the calculation of the spanning tree.
- D. 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.
Answer: B
NEW QUESTION 29
Which of the following attribute must be carried in an Update message?
- A. MED
- B. Local-pref
- C. AS-Path
- D. Prefval
Answer: B
NEW QUESTION 30
Regarding the route-policy set-cost configuration below, which of the following statements is true?
- A. All the routes that are not permitted by node 10 will be denied.
- B. The cost of all routes is set to 200.
- C. The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.
- D. The route 11.1.0.0/16 will continue to match node 20 after permitted by node 10, and (he final cost is set to 200.
Answer: C
NEW QUESTION 31
What is the correct procedure for a VLAN pool to assign terminals to VLANs.
Answer:
Explanation:
NEW QUESTION 32
Which Of the following IEEE 802.11 standards is also known as Wi-Fi 6?
- A. 802.11ac
- B. 802.11b
- C. 802.11n
- D. 802.11ax
Answer: A
NEW QUESTION 33
Which of the following statements regarding DR/BDR are false?
- A. DR others listen on the multicast address 224.0.0.5.
- B. All DR others establish neighbor relationships with DR and BDR only.
- C. In a broadcast network, DR and BDR must be elected. A broadcast network without a DR or BDR cannot operate normally.
- D. DR others listen on the network address 224.0.0.6.
Answer: B
NEW QUESTION 34
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?
- A. AC2
- B. AC1
- C. None
- D. Random access
Answer: C
NEW QUESTION 35
Compress the 2001:0DBB:B8:0000:C030:0000:0000:09A0:CDEF address.___________(if the answer contains letters, capitalize them.)
Answer:
Explanation:
pending
NEW QUESTION 36
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