[Oct-2022] Dumps Brief Outline Of The H12-821_V1.0 Exam - TestPDF
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NEW QUESTION 34
Which of the following statements regarding the LSA age field are true?
- A. The unit of this field is seconds. In a LSDB, the LS age of a LSA decreases with time.
- 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 increases with time.
- D. If the LS age of a LSA has reached the LSRefreshTime (30 minutes), any router can regenerate an instance of this LSA again.
Answer: A
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
Which of the following statements about WLAN roaming are true?
- A. APs for roaming must be in the same extended service set (ESS).
- B. APs for roaming do not need to have overlapping signal coverage.
- C. APs for roaming must have overlapping signal coverage.
- D. APs for roaming must be in the same basic service set (BSS).
Answer: B
NEW QUESTION 37
Which of the following configurations are not mandatory when an administrator configures VRRP?
- A. Preemption delay
- B. Virtual router priority
- C. Virtual IP address
- D. Preemption mode
Answer: C
NEW QUESTION 38
RSTP provides different functions in different scenarios. Which of the following statements Is false?
- A. After TC-BPDU attack defense function is enabled, you can set the number of times the switch processes TC BPDUs within a certain period
- 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. 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
Answer: B
NEW QUESTION 39
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 40
Four routers run ISIS and have established adjacencies. The area IDs and router levels are marked in the following figure. If route leaking is configured on R3, which of the following is the cost of the route from R4 to 10.0.2.2/32?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 41
OSPF supports area authentication and interface authentication. If both authentication modes are configured, Interface authentication takes preference over area authentication.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 42
A Huawei firewall by default creates security zones named untrust, dmz, _________ and local. (Use Lowercase letters.)
Answer:
Explanation:
security policy
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
According to BGP route selection rules, the route with the higher Local_Pref is preferred.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 45
Which of the following statements regarding OSPF route summarization is false?
- A. Any router in OSPF can summarize routes.
- B. OSPF supports two route summarization modes: ABR summarization and ASBR summarization.
- C. Route summarization can reduce routing information, decrease the routing table size, and improve router performance.
- D. Route summarization is the process of summarizing routes with the same prefix into one route and then advertising only the summarized route to other areas.
Answer: C
NEW QUESTION 46
Which of the following statements regarding different LSA types is false?
- A. LS Ack packets contain complete LSA information.
- B. LS Update packets contain complete LSA information.
- C. LS Request packets contain only LS Type, LS ID, and Advertising Router.
- D. DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence Number.
Answer: B
NEW QUESTION 47
Which of the following statements about the forwarding plane of a switch is false?
- A. Provides high-speed and non-blocking data channels.
- B. Can collect packet statistics.
- C. Consists of main control boards and interface boards.
- D. Can encapsulate and decapsulate packets.
Answer: B
NEW QUESTION 48
ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?
- A. Packets must pass the firewall, and a session table is established.
- B. By default, when status detection is disabled and the permit policy is configured packets can pass.
- C. If the firewall security policy permits packets to pass, the session table is created.
- D. If the firewall security policy permits packets to pass, the packets can pass the firewall.
Answer: C
NEW QUESTION 49
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 50
Regarding the route-policy set-cost configuration below, which of the following statements is true?
- A. The cost of all routes is set to 200.
- B. 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.
- C. All the routes that are not permitted by node 10 will be denied.
- D. The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.
Answer: D
NEW QUESTION 51
When two routers exchange LSDB information using DD packets, a master/slave relationship is formed first, the router with a larger router ID is the master, and determine the MS bit.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 52
An engineer sets the CAPWAP heartbeat detection interval to 20 of the active link before an active/standby switchover occurs?
- A. 90s
- B. 60s
- C. 20s
- D. 75s
Answer: C
NEW QUESTION 53
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 cost of an IS-IS interface is changed.
- C. The interval at which an IS-IS interface sends IIH packets is changed.
- D. The level of an ISIS interface is changed.
Answer: D
NEW QUESTION 54
Which of the following PIM protocol packets have unicast destination addresses.
- A. Bootstrap
- B. Register Stop
- C. Assert
- D. Graft
Answer: D
NEW QUESTION 55
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