H12-821_V1.0 PDF Dumps Real 2021 Recently Updated Questions
Released Huawei H12-821_V1.0 Updated Questions PDF
NEW QUESTION 33
Which of the following statements about WLAN roaming are true?
- A. APs for roaming must have overlapping signal coverage.
- B. APs for roaming must be in the same basic service set (BSS).
- C. APs for roaming must be in the same extended service set (ESS).
- D. APs for roaming do not need to have overlapping signal coverage.
Answer: D
NEW QUESTION 34
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 35
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 36
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 37
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. FALSE
- B. TRUE
Answer: A
NEW QUESTION 38
When a routing policy is used to filter routes, which of the following route prefixes will be denied by the IP prefix below?
- A. 1.1.1.2/16
- B. 1.1.1.1/26
- C. 1.1.1.1/24
- D. 1.1.1.1/32
Answer: C
NEW QUESTION 39
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 40
If a router ID is configured in both the system via and the BGP view, BGP uses the router ID configured in the BGP view because the BGP view takes precedence over the system view.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 41
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: B
NEW QUESTION 42
In a route-policy, which of the following BGP attributes can be used in apply clauses?
- A. AS_Path
- B. Local-Preference
- C. MED
- D. Tag
Answer: A,B,C
NEW QUESTION 43
Which of the following attribute must be carried in an Update message?
- A. Prefval
- B. MED
- C. AS-Path
- D. Local-pref
Answer: D
NEW QUESTION 44
Which of the following statements is false?
- A. When a router with the highest router priority joins an OSPF network, this router will become the new DR.
- B. A device with a higher router priority has a higher election priority.
- C. If two devices have the same router priority, the device with a larger router ID has a higher election priority.
- D. If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.
Answer: D
NEW QUESTION 45
According to BGP route selection rules, the route with the higher Local_Pref is preferred.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 46
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. IGMP snooping cannot control the scope of multicast traffic flooding on a Layer 2 network.
- C. The source address of a multicast packet is a unicast address.
- D. In multicast transmission, the destination address of a packet can be the unicast address of a host.
Answer: A
NEW QUESTION 47
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. None
- B. AC1
- C. AC2
- D. Random access
Answer: A
NEW QUESTION 48
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