Attested H12-821_V1.0-ENU Dumps PDF Resource [2022]
Latest H12-821_V1.0-ENU Actual Free Exam Questions Updated 450 Questions
NEW QUESTION 99
The edge port in RSTP does not need to wait for the forwarding delay, and can directly enter the forwarding state. If the edge port receives the BPDU, the edge port will be directly closed and enter the error down state.
- A. True
- B. False
Answer: B
NEW QUESTION 100
Which of the following description about OSPF is correct?
- A. OSPF floods an LSU every 5s
- B. OSPF LSA is updated regularly every 30 minutes
- C. OSPF uses Bellman-Ford algorithm, each router runs the algorithm independently
- D. OSPF itself does not have a confirmation mechanism, so OSPP relies on the underlying protocol, namely TCP confirmation.
Answer: B
NEW QUESTION 101
As shown in the figure, please follow the DHCPv6 four-step interactive process, drag the message to the corresponding position R1, R2, R3, R4 in order to run OSPF, the area ID is as shown in the figure, then () is ABR. (please Fill in the device name, such as R1) (Multiple choice)
- A. Solicit
- B. Advertise
- C. Request
- D. Reply
Answer: A,B,C,D
NEW QUESTION 102
The output information of a router is as follows, please match the information on the left with the information on the right.
Router ID of this device: ()
Router ID of the peer device: ()
The interface IP address of this device: ()
City ID to which this device belongs: ()
Answer:
Explanation:
10.0.1.1|10.0.2.2|10.0.123.1|0.0.0.0
NEW QUESTION 103
Which of the following tools is used to filter routing information and set routing attributes for the routing information that passes the filter?
- A. route-policy
- B. policy-based-route
- C. as-path-filter
- D. IP-prefix
Answer: A
NEW QUESTION 104
BGP neighbors are neighbor relationships established through UDP.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 105
The following is part of the output information of the router RTB. Which of the following regarding the description of the output information is false?
- A. The last host sending the Report message is 225.1.1.2
- B. The multicast address to join is 255.1.1.2
- C. The display igmp group command is used to view the IGMP multicast information, including the multicast group information dynamically joined through the member report and the multicast group information statically joined through the command line
- D. The number of dynamically joined multicast groups on the interface is 1
Answer: A
NEW QUESTION 106
When the stateful inspection firewall forwarding a subsequent packet (non-first packet), which is mainly based on the following items?
- A. OFIB table
- B. Session table
- C. MAC address table
- D. Route table
Answer: B
NEW QUESTION 107
What is the IP protocol number of the VRRP message?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 108
In dual-link hot backup, AP will establish a CAPWAP link with the main AC and backup AC.
- A. True
- B. False
Answer: B
NEW QUESTION 109
The Link ID of the Type 3 of LSA is:
- A. The port IP address of the DR on the network segment where it is located
- B. Described ABR 's Router ID
- C. Described destination network segment
- D. Generate the Router ID of this LSA's router
Answer: C
NEW QUESTION 110
BGP prefers the route with the best Origin attribute value. Origin attribute values are: EGP, IGP, ().
Answer:
Explanation:
incomplete
NEW QUESTION 111
Which of the following statements about MSTP is correct? (Multiple choice)
- A. The BPDU format of MSTP is the same as RSTP
- B. MSTP supports compatible operation with RSTP
- C. MSTP can achieve load sharing of traffic between different LANs
- D. Compared with RSTP.MSTP has more port roles
Answer: B,C,D
NEW QUESTION 112
Which of the following description of the information contained in the OPEN message in the EGP is wrong?
- A. OPEN message contains only BGP message header
- B. OPEN message contains local AS number information
- C. OPEN message contains Hold time message
- D. OPEN message contains VERSION information
Answer: A
NEW QUESTION 113
Regarding the description of the characteristics of the routing strategy, which is correct?
- A. Based on the forwarding plane, serving the forwarding strategy
- B. Manual hop-by-hop configuration is required to ensure that packets are forwarded according to the policy
- C. Forwarding according to the routing table based on the destination address
- D. Application command policy- based-route
Answer: C
NEW QUESTION 114
performing source NAT configuration, and when there is no-pat configuration parameters, which the following statement is correct?
- A. Only source IP address conversion
- B. Simultaneous conversion of source IP address and source port
- C. Only the destination IP address conversion
- D. Perform destination IP address and destination port conversion
Answer: A
NEW QUESTION 115
The interface IP address and virtual IP address of VRRP can be the same
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 116
Which of the following OSPF messages carry master-slave relationship information?
- A. LSA Update message
- B. DD message
- C. Hel1o message
- D. LSA Request message
Answer: B
NEW QUESTION 117
Which of the following about OSPF AS-External-LSA is correct? (Multiple choice)
- A. Link State ID is set as the destination network segment address
- B. Advertising Router is set to ASBR Router ID
- C. Use Link State ID and Advertising Router to uniquely identify an AS-External-LSA
- D. Net mask is set to all 0
Answer: A,B
NEW QUESTION 118
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