Ultimate Guide to Prepare H12-821_V1.0 Certification Exam for Huawei Other Certification in 2021
Use Real H12-821_V1.0 Dumps - Huawei Correct Answers updated on 2021
NEW QUESTION 28
There are two BFD operating modes. In_______mode, the local end sends BFD Control packets at specified intervals, and the remote end checks whether the local end periodically sends BFD Control packets. (Use lowercase letters.)
Answer:
Explanation:
primary
NEW QUESTION 29
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. The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.
- C. The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.
- D. 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.
Answer: B
NEW QUESTION 30
Which of the following PIM protocol packets have unicast destination addresses.
- A. Register Stop
- B. Assert
- C. Bootstrap
- D. Graft
Answer: D
NEW QUESTION 31
In a route-policy, which of the following BGP attributes can be used in apply clauses?
- A. MED
- B. Local-Preference
- C. AS_Path
- D. Tag
Answer: A,B,C
NEW QUESTION 32
Which of the following statements about the forwarding plane of a switch is false?
- A. Can collect packet statistics.
- B. Consists of main control boards and interface boards.
- C. Provides high-speed and non-blocking data channels.
- D. Can encapsulate and decapsulate packets.
Answer: A
NEW QUESTION 33
Which of the following statements is false?
- A. If two devices have the same router priority, the device with a larger router ID has a higher election priority.
- B. If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.
- C. A device with a higher router priority has a higher election priority.
- D. When a router with the highest router priority joins an OSPF network, this router will become the new DR.
Answer: B
NEW QUESTION 34
Which of the following statements is false, based on the following IGMP information on an interface of RTA?
- A. The maximum time for response to Query messages is 10s.
- B. The IP address of the interface is 192.168.1.1.
- C. The IGMP version is IGMPV2.
- D. The interval for sending group-specific Query messages is 60s.
Answer: A
NEW QUESTION 35
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 36
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 37
RSTP provides different functions in different scenarios. Which of the following statements Is false?
- A. When the designated port enabled with root protection receives optimal RST BPDUs, the port enters the Discarding state and does not forward packets. If the port does not receive optimal RST BPDUs within a certain period of time, the port will automatically restore to the Forwarding state
- B. If the edge port on the switch enabled with BPDU protection receives RST BPDU, the switch sets the edge port as a non-edge-port and triggers STP calculation
- C. The role of the designated port that is enabled with root protection cannot be changed
- D. After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period
Answer: B
NEW QUESTION 38
Which of the following configurations are not mandatory when an administrator configures VRRP?
- A. Virtual router priority
- B. Virtual IP address
- C. Preemption mode
- D. Preemption delay
Answer: B
NEW QUESTION 39
In the OSPF protocol, inter-area route calculation involves only Router LSA, Network LSA, and Summary LSA.
- A. FLASE
- B. TRUE
Answer: B
NEW QUESTION 40
Which of the following TLVs is used by ISIS to describe the IP address of an interface?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 41
According to BGP route selection rules, the route with the higher Local_Pref is preferred.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 42
After which of the following parameters are modified does an IS-IS neighbor relationship need to re-established?
- A. The interval at which an IS-IS interface sends IIH packets is changed.
- B. The level of an ISIS interface is changed.
- C. The IP address of an ISIS interface is changed.
- D. The cost of an IS-IS interface is changed.
Answer: B
NEW QUESTION 43
Preferences of routing protocols determine the sequence In which a router selects a route among routes to the same destination /earned through different routing protocols.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 44
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 45
OSPF supports area authentication and interface authentication. If both authentication modes are configured, Interface authentication takes preference over area authentication.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 46
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 47
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