Prepare H12-821_V1.0 Question Answers - H12-821_V1.0 Exam Dumps
Real Huawei H12-821_V1.0 Exam Questions [Updated 2021]
NEW QUESTION 30
Which of the following statements regarding IGMPv1 and IGMPv2 are true?
- A. IGMPv1 supports general query.
- B. 1GMPv2 supports only general query.
- C. 1GMPv2 defines the Leave message type.
- D. IGMPv1 does not define the IGMP Leave message type.
Answer: A
NEW QUESTION 31
To inject IGP routes into BGP routes, you can only use the network command.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 32
Which of the following PIM protocol packets have unicast destination addresses.
- A. Graft
- B. Assert
- C. Register Stop
- D. Bootstrap
Answer: A
NEW QUESTION 33
Which of the following is the default interval at which the DIS on a broadcast IS_IS network sends CSNPs.
- A. 0
- B. 1
- C. 2
- D. 3.3
Answer: B
NEW QUESTION 34
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 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. Voltage monitoring
- D. Temperature monitoring
Answer: D
NEW QUESTION 36
Which of the following statement regarding the display ospf peer command output is true?
- A. Through negotiation during DD packet exchange, the local end becomes the slave.
- B. The DR address is 10.1.1.1
- C. Router ID indicates that the local router ID Is 10.1.1.1.
- D. Address: 10.1,1.1 Indicates that the local interface address is 10.1.1.1.
Answer: D
NEW QUESTION 37
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 38
Compared with STP, RSTP defines the different port states. Which of the following statements regarding discarding and learning states are true?
- A. The port In discarding or learning state does not forward data frames.
- B. The port in discarding state does not learn MAC addresses table.
- C. The port In learning stole docs not learn MAC addresses table.
- D. The port in discarding or learning state does not learn MAC addresses
Answer: D
NEW QUESTION 39
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 40
A Huawei firewall by default creates security zones named untrust, dmz, _________ and local. (Use Lowercase letters.)
Answer:
Explanation:
security policy
NEW QUESTION 41
Drag the following VRRP states to the corresponding working mechanisms.
Answer:
Explanation:
Explanation
Master
Backup
Master
Backup
NEW QUESTION 42
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 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.
- C. When the stateful inspection firewall checks packets, packets of one same connection are not correlated.
- D. The stateful inspection firewall needs to match the rules for each incoming packet.
Answer: B
NEW QUESTION 43
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 44
An engineer sets the CAPWAP heartbeat detection interval to 20 of the active link before an active/standby switchover occurs?
- A. 90s
- B. 75s
- C. 60s
- D. 20s
Answer: D
NEW QUESTION 45
What is the correct procedure for a VLAN pool to assign terminals to VLANs.
Answer:
Explanation:
NEW QUESTION 46
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. If the firewall security policy permits packets to pass, the session table is created.
- B. Packets must pass the firewall, and a session table is established.
- C. If the firewall security policy permits packets to pass, the packets can pass the firewall.
- D. By default, when status detection is disabled and the permit policy is configured packets can pass.
Answer: A
NEW QUESTION 47
Regarding the route-policy set-cost configuration below, which of the following statements is true?
- A. The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.
- B. The cost of all routes is set to 200.
- C. 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.
- D. All the routes that are not permitted by node 10 will be denied.
Answer: A
NEW QUESTION 48
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 49
The filter-policy 2000 export command is run in an ISIS process. Which of the following statements about the functions of a filter policy is false?
- A. Is used together with the route import function to advertise some imported external routes to neighbors.
- B. If this command is not run, the device by default advertises all routes that ISIS Imports form external routing protocols.
- C. Filters LSPs to be advertised.
- D. Controls the advertisement of routes generated by the device.
Answer: B
NEW QUESTION 50
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