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Huawei H12-821_V1.0 exam is a high-level certification, which requires candidates to have a good understanding of datacom core technologies. As such, the exam has been designed to test the candidates' understanding of concepts such as datacom networking technologies, MPLS VPN technologies, multicast technologies, and QoS technologies. To pass this exam, candidates must have a deep understanding of these concepts and be able to apply them to real-life scenarios.
NEW QUESTION # 37
Which of the following statements regarding DR/BDR are false?
- A. In a broadcast network, DR and BDR must be elected. A broadcast network without a DR or BDR cannot operate normally.
- B. DR others listen on the multicast address 224.0.0.5.
- C. DR others listen on the network address 224.0.0.6.
- D. All DR others establish neighbor relationships with DR and BDR only.
Answer: D
NEW QUESTION # 38
An engineer sets the CAPWAP heartbeat detection interval to 20 of the active link before an active/standby switchover occurs?
- A. 60s
- B. 90s
- C. 20s
- D. 75s
Answer: C
NEW QUESTION # 39
After which of the following parameters are modified does an IS-IS neighbor relationship need to re-established?
- A. The cost of an IS-IS interface is changed.
- B. The level of an ISIS interface is changed.
- C. The IP address of an ISIS interface is changed.
- D. The interval at which an IS-IS interface sends IIH packets is changed.
Answer: B
NEW QUESTION # 40
In a route-policy, which of the following BGP attributes can be used in apply clauses?
- A. MED
- B. Tag
- C. Local-Preference
- D. AS_Path
Answer: A,C,D
NEW QUESTION # 41
Compress the 2001:0DBB:B8:0000:C030:0000:0000:09A0:CDEF address.___________(if the answer contains letters, capitalize them.)
Answer:
Explanation:
pending
NEW QUESTION # 42
To inject IGP routes into BGP routes, you can only use the network command.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 43
What is the correct procedure for a VLAN pool to assign terminals to VLANs.
Answer:
Explanation:
NEW QUESTION # 44
Which of the following statements regarding the LSA age field are true?
- A. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.
- B. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), the originator of this LSA needs to regenerate an instance of this LSA again.
- C. The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.
- D. The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.
Answer: C
NEW QUESTION # 45
Which of the following statements is false, based on the following IGMP information on an interface of RTA?
- A. The IP address of the interface is 192.168.1.1.
- B. The interval for sending group-specific Query messages is 60s.
- C. The maximum time for response to Query messages is 10s.
- D. The IGMP version is IGMPV2.
Answer: C
NEW QUESTION # 46
Which of the following configurations are not mandatory when an administrator configures VRRP?
- A. Preemption mode
- B. Virtual router priority
- C. Preemption delay
- D. Virtual IP address
Answer: D
NEW QUESTION # 47
See the following figure. RTA, RTB, RTC, and RTD are in the same AS and establish IBGP peer relationships through direct links. RTB an RTC are route reflectors (RRs), RTA and RTC are the RR clients of RTB, and RTB and RTD are the RR clients of RTC. If RTA advertises the route 10.1.1.0/24 to the BGP process, the Originator ID of the BGP route received by RTD is------------------.
Answer:
Explanation:
IN ORDER
NEW QUESTION # 48
Which of the following statements regarding BGP route advertisement are false?
- A. All the BGP routes learned from all BGP peer will be advertised to other BGP peers.
- B. Only the routes learned from IGPs can be advertised to other BGP peers.
- C. Only the optimal routes preferred by BGP can be advertised to other BGP peers.
- D. By default, the routes learned from an IBGP peer will not be forwarded to other IBGP peers.
Answer: C
NEW QUESTION # 49
In BGP, the origin attribute of the routes imported using the import-route command is incomplete.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 50
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. Error Type indicates that the BGP error is caused by the neighbor relationship error.
- C. The neighbor address of this router is 10.1.1.5.
- D. The error may be caused by the incorrect neighbor address.
Answer: B
NEW QUESTION # 51
Drag the following VRRP states to the corresponding working mechanisms.
Answer:
Explanation:
Explanation
Master
Backup
Master
Backup
NEW QUESTION # 52
The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 53
Which of the following attribute must be carried in an Update message?
- A. MED
- B. Prefval
- C. AS-Path
- D. Local-pref
Answer: D
NEW QUESTION # 54
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 learning stole docs not learn MAC addresses table.
- B. The port In discarding or learning state does not forward data frames.
- C. The port in discarding or learning state does not learn MAC addresses
- D. The port in discarding state does not learn MAC addresses table.
Answer: C
NEW QUESTION # 55
Regarding the route-policy set-cost configuration below, which of the following statements is true?
- A. 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.
- B. All the routes that are not permitted by node 10 will be denied.
- C. The cost of all routes is set to 200.
- D. The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.
Answer: D
NEW QUESTION # 56
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