2021 Latest H12-821_V1.0 Exam Dumps Recently Updated 62 Questions
Huawei H12-821_V1.0 Real 2021 Braindumps Mock Exam Dumps
NEW QUESTION 36
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 37
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. Voltage monitoring
- D. Temperature monitoring
Answer: D
NEW QUESTION 38
A local router runs IS-IS and its command output is shown in the following figure. Which of the following statements is true?
- A. The circuit level of S4/0/0 is Level-1.
- B. S4/0/0 sends IIH packets at the interval of 30s.
- C. The cost of S4/0/0 is 20.
- D. S4/0/0 supports IPv6.
Answer: B
NEW QUESTION 39
A switch runs MSTP. The configuration is shown in the figure. What is the role of this switch in MSTI 1?
- A. Secondary root switch
- B. Root switch
- C. Non-root switch
- D. Uncertain
Answer: D
NEW QUESTION 40
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 41
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), the originator of this LSA needs to 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. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.
- D. The unit of this field is seconds. In a LSDB, the LS age of a LSA increases with time.
Answer: B
NEW QUESTION 42
Which of the following statements regarding the summary automatic command and BGP route summarization is false?
- A. After this command is configured, BGP summarizes routes based on natural network segments
- B. After this command is configured, BGP sends only the summarized routes to peers
- C. This command is used to implement automatic summarization. Automatic summarization takes precedence over manual summarization
- D. This command enables automatic summarization for the locally imported routes
Answer: A
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. FALSE
- B. TRUE
Answer: A
NEW QUESTION 44
IGMPV3 not only supports IGMPv1 General Query and IGMPv2 Group-Specific Query, and also IGMPv3 Source/Group-Specific Query.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 45
Which of the following statements regarding DR/BDR are false?
- A. DR others listen on the network address 224.0.0.6.
- B. DR others listen on the multicast address 224.0.0.5.
- C. In a broadcast network, DR and BDR must be elected. A broadcast network without a DR or BDR cannot operate normally.
- D. All DR others establish neighbor relationships with DR and BDR only.
Answer: D
NEW QUESTION 46
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: D
NEW QUESTION 47
Which of the following PIM protocol packets have unicast destination addresses.
- A. Graft
- B. Assert
- C. Register Stop
- D. Bootstrap
Answer: A
NEW QUESTION 48
Which Of the following IEEE 802.11 standards is also known as Wi-Fi 6?
- A. 802.11b
- B. 802.11ac
- C. 802.11ax
- D. 802.11n
Answer: B
NEW QUESTION 49
Which of the following statements regarding BGP route advertisement are false?
- A. Only the routes learned from IGPs can be advertised to other BGP peers.
- B. All the BGP routes learned from all BGP peer will be advertised to other BGP peers.
- C. By default, the routes learned from an IBGP peer will not be forwarded to other IBGP peers.
- D. Only the optimal routes preferred by BGP can be advertised to other BGP peers.
Answer: D
NEW QUESTION 50
RSTP provides different functions in different scenarios. Which of the following statements Is false?
- A. 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
- B. 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
- C. After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period
- D. The role of the designated port that is enabled with root protection cannot be changed
Answer: A
NEW QUESTION 51
To inject IGP routes into BGP routes, you can only use the network command.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 52
Which of the following attacks is not the network layer attack?
- A. IP spoofing attack
- B. ICMP attack
- C. ARP spoofing attack
- D. Smurf attack
Answer: C
NEW QUESTION 53
The Interface \P address and VRRP virtual IP address can be the same.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 54
After which of the following parameters are modified does an IS-IS neighbor relationship need to re-established?
- A. The IP address of an ISIS interface is changed.
- B. The interval at which an IS-IS interface sends IIH packets is changed.
- C. The level of an ISIS interface is changed.
- D. The cost of an IS-IS interface is changed.
Answer: C
NEW QUESTION 55
Which of the following routing protocols support the default route through command configuration?
- A. BGP
- B. ICMP
- C. OSPF
- D. IS-IS
Answer: A
NEW QUESTION 56
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