H12-821_V1.0 Exam Brain Dumps - Study Notes and Theory [Jan-2022]
100% Guaranteed Results H12-821_V1.0 Unlimited 62 Questions
NEW QUESTION 33
A Huawei firewall by default creates security zones named untrust, dmz, _________ and local. (Use Lowercase letters.)
Answer:
Explanation:
security policy
NEW QUESTION 34
In BGP, the origin attribute of the routes imported using the import-route command is incomplete.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 35
Which of the following statements about WLAN roaming are true?
- A. APs for roaming must have overlapping signal coverage.
- B. APs for roaming do not need to have overlapping signal coverage.
- C. APs for roaming must be in the same extended service set (ESS).
- D. APs for roaming must be in the same basic service set (BSS).
Answer: B
NEW QUESTION 36
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: C
NEW QUESTION 37
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 38
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. If two devices have the same router priority, the device with a larger router ID has a higher election priority.
- C. If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.
- D. A device with a higher router priority has a higher election priority.
Answer: C
NEW QUESTION 39
RSTP provides different functions in different scenarios. Which of the following statements Is false?
- A. The role of the designated port that is enabled with root protection cannot be changed
- 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. 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
- 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 40
In the OSPF protocol, inter-area route calculation involves only Router LSA, Network LSA, and Summary LSA.
- A. TRUE
- B. FLASE
Answer: A
NEW QUESTION 41
Which of the following statements regarding IGMPv1 and IGMPv2 are true?
- A. 1GMPv2 supports only general query.
- B. IGMPv1 supports general query.
- C. 1GMPv2 defines the Leave message type.
- D. IGMPv1 does not define the IGMP Leave message type.
Answer: B
NEW QUESTION 42
Which of the following statements regarding OSPF route summarization is false?
- A. 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.
- 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. Any router in OSPF can summarize routes.
Answer: C
NEW QUESTION 43
Which of the following statements regarding an IP prefix are true?
- A. An IP prefix filter can be used to filter data packets.
- B. An IP prefix filter cannot be used to filter data packets.
- C. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.
- D. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.
Answer: A
NEW QUESTION 44
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 IP address of an ISIS 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 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 regarding the summary automatic command and BGP route summarization is false?
- A. After this command is configured, BGP sends only the summarized routes to peers
- B. After this command is configured, BGP summarizes routes based on natural network segments
- C. This command enables automatic summarization for the locally imported routes
- D. This command is used to implement automatic summarization. Automatic summarization takes precedence over manual summarization
Answer: B
NEW QUESTION 47
In a route-policy, which of the following BGP attributes can be used in apply clauses?
- A. MED
- B. Local-Preference
- C. Tag
- D. AS_Path
Answer: A,B,D
NEW QUESTION 48
Which of the following statements about multicast packet forwarding is true?
- A. IGMP snooping cannot control the scope of multicast traffic flooding on a Layer 2 network.
- B. In multicast transmission, the destination address of a packet can be the unicast address of a host.
- C. 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.
- D. The source address of a multicast packet is a unicast address.
Answer: C
NEW QUESTION 49
Which of the following statements regarding the stateful inspection firewall is true?
- A. Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.
- B. The stateful inspection firewall needs to match the rules for each incoming packet.
- C. The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.
- D. When the stateful inspection firewall checks packets, packets of one same connection are not correlated.
Answer: C
NEW QUESTION 50
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. Temperature monitoring
- C. System power-on and power-off control
- D. Voltage monitoring
Answer: B
NEW QUESTION 51
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. AC1
- B. Random access
- C. None
- D. AC2
Answer: C
NEW QUESTION 52
Which of the following is the default interval at which the DIS on a broadcast IS_IS network sends CSNPs.
- A. 3.3
- B. 0
- C. 1
- D. 2
Answer: B
NEW QUESTION 53
Which of the following statement regarding the display ospf peer command output is true?
- A. Address: 10.1,1.1 Indicates that the local interface address is 10.1.1.1.
- B. Router ID indicates that the local router ID Is 10.1.1.1.
- C. Through negotiation during DD packet exchange, the local end becomes the slave.
- D. The DR address is 10.1.1.1
Answer: A
NEW QUESTION 54
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 55
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 56
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 57
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