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HCIP-Datacom-Core Technology (Huawei H12-821) Test Questions and Answers? | SPOTO

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Question #1
The interface IP address and VRRP virtual IP address can be the same
A. RUE
B. ALSE
View answer
Correct Answer: A
Question #2
The native AC function allows an agile switch to integrate AC capabilities, achieving wired and wireless convergence. The agile switch centrally manages wired and wireless service traffic.
A. ATRUE
B. BFALSE
View answer
Correct Answer: A
Question #3
Among the matters needing attention in configuring the Stub area, the correct description is:
A. The virtual connection can pass through the stub area
B. If an area is configured as a Stub area, all routers in the area must be configured with Stub area attributescorrect
C. The backbone area can be configured as a stub area
D. ASBR can exist in the Stub area
View answer
Correct Answer: B
Question #4
Which of the following does the basic framework of the SSH protocol not include?
A. SSH User Audit Protocol
B. SSH connection protocol
C. SSH user authentication protocol
D. SSH transport layer protocol
View answer
Correct Answer: A
Question #5
Regarding the description of the summary automatic command and BGP aggregation, which is wrong?
A. This command is used to implement automatic aggregation, and its priority is higher than manual aggregationcorrect
B. After configuring this command, BGP will aggregate routes according to natural network segments
C. This command is used to enable automatic aggregation of locally imported routes
D. After configuring this command, BGP only sends the aggregated route to the peer
View answer
Correct Answer: A
Question #6
As shown in the following figure, a new AP is deployed In dual link MSB networking (load balancing mode) .
A. AC1
B. Random access
C. Nonecorrect
D. AC2
View answer
Correct Answer: C
Question #7
Which of the following strategies or tools cannot be applied to OSPF?
A. access-list
B. prefix-list
C. route-policy
D. as-path filtercorrect
View answer
Correct Answer: D
Question #8
Regarding LSA3, LSA4 and LSA5, which of the following description is correct?
A. LSA5 will not change after passing through different areas, but LSA3 will changecorrect
B. LSA3, LSA4 and LSA5 will not change after passing through different areas
C. LSA3 will not change after passing through different areas, but LSA4 and LSA5 will change
D. LSA4 will not change after passing through different areas, but LSA3 and LSA5 will change
View answer
Correct Answer: A
Question #9
Which of the following statements about OSPF protocol packets is wrong?
A. The header format of all OSPF packets is the same
B. All OSPF packet headers carry the Router-ID field
C. The OSPF protocol uses five types of packets to complete the transfer of routing information
D. OSPF packets are encapsulated in UDP packets, and the port number is 89correct
View answer
Correct Answer: D
Question #10
Which of the following statements about the address used by AC to establish a CAPWAP tunnel in VRRP hot backup is correct?
A. The physical address of the primary AC
B. The physical address of the standby MC
C. Any address configured in the AC is fine
D. VRRP virtual addresses of the active and standby ACscorrect
View answer
Correct Answer: D
Question #11
MAC address-prioritized Portal authentication allows disconnected users who have completed Portal authentication to directly access the network again within a certain period of time after the disconnection without having to perform Portal authentication again.
A. RUE
B. ALSE
View answer
Correct Answer: A
Question #12
Among the routing policy tools commonly used in BGP, the one that can be used to match a specific AS_path is:
A. filter-policy
B. ip-prefix
C. ip as-path-filercorrect
D. community-filter
View answer
Correct Answer: C
Question #13
Which of the following descriptions about the Keepalive message in BGP is wrong?
A. Keepalive messages are mainly used to maintain the connection between BGP peers
B. The Keepalive message contains only one BGP data header
C. By default, the Keepalive interval is 180 secondscorrect
D. Keepalive messages are periodically sent between two BGP neighbors
View answer
Correct Answer: C
Question #14
Regarding the description of the routing tool, which of the following statement is wrong?
A. route-policy can only match routes and data packets, and cannot be used to modify routing attributes or data packet forwarding behaviorcorrect
B. Prefix list (ip-prefix) matching object is the destination address of routing information
C. The access control list (ACL) is used to match the IP routing information or the address of the data packet
D. as-path-filter is used to match the AS-PATH attribute in BGP routing information, so it can only be used to filter BGP routes
View answer
Correct Answer: A
Question #15
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. Voltage monitoring
B. Temperature monitoringcorrect
C. Fan control
D. System power-on and power-off control
View answer
Correct Answer: B
Question #16
Which of the following is the configuration command for linkage between VRRP and BFD?
A. vrrp vrid 1 track bfd-session session-name 1 reduced 100correct
B. bfd-session vrrp vrid 1 track session-name 1 reduced 100
C. vrrp vrid 1 track bfd-session-name 1 reduced 100
D. track vrrp vrid 1 bfd-session session-name 1 reduced 100
View answer
Correct Answer: A
Question #17
ACL command ac1 [number] ac1-number [ match-order {autol config}], where ac1-numnbe is used to specify the number of the access control list, and the value range of ac1-number of the basic access control list is ().
A. 1000~3999
B. 0~1000
C. 3000~3999
D. 2000 ~2999correct
View answer
Correct Answer: D
Question #18
Regarding the description of the Hello message in PIM-SM, the error is:
A. The routers periodically use Hello messages to keep in touch
B. In the PIM-SM network, the newly started multicast router needs to use Hello messages to discover neighbors and maintain neighbor relationships
C. Hello packets are sent to the multicast address 224
D. Elect DR in multi-router network segment through Hello message
View answer
Correct Answer: C
Question #19
When a stateful inspection firewall forwards subsequent data packets (not the first packet), which of the following is mainly based on?
A. Route table
B. OFIB table
C. MAC address table
D. Session tablecorrect
View answer
Correct Answer: D
Question #20
Which of the following statements regarding BGP message types and characteristics is false?
A. ello messages are periodically sent between BGP peers to maintain their connection
B. pdate messages are used to exchange routing information between BGP peers
C. pen messages are used to establish a peer relationship between two neighbors
D. otification messages are used to transmit error information between BGP Speakers
View answer
Correct Answer: A
Question #21
During the operation of the DHCP protocol, the process from when the client applies to obtain an IP address is: ① The host sends a DHCP Request to request an IP address ② Server sends DHCP Offer message response ③ The host sends a DHCP Discover message to find DHCP ④ Server 4 Server responds with ACK response request after receiving the request
A. ③ - ② - ① - ④correct
B. ① - ② - ③ - ④
C. ① - ④ - ③ - ④
D. ③ - ④ - ① - ②
View answer
Correct Answer: A
Question #22
Which of the following descriptions about setting Community through routing policies to affect routing selection is wrong?
A. It can be indirectly affected
B. It cannot be affected, because the Community attribute of the route is a non-transitional attribute and cannot be passed between routers
C. It can be affected indirectly
D. After the router receives the routing update whose Commmity attribute is No_ Advertise, it will not advertise it outside the local A
View answer
Correct Answer: A
Question #23
OpenSent
A. 3-1-2-5-4
B. 1-3-5-2-4
C. 3-5-1-2-4
D. 3-1-5-2-4correct
View answer
Correct Answer: D
Question #24
The following is the BGP information output by the router. Which of the description of this information is wrong?
A. The Router ID of the router is 1
B. Use the display bgp network command to display the routing information of BGP advertised through the BGP network
C. The AS number of the router is 10
D. The router has introduced the network segment of 4
View answer
Correct Answer: D
Question #25
Which of the following does not include the switch role in the stack system?
A. Main switch
B. Candidate switchcorrect
C. Slave switch
D. Standby switch
View answer
Correct Answer: B
Question #26
Which of the following description of OSPF neighbor relationship and adjacency relationship is correct?
A. The adjacency relationship is maintained by OSPF DD packets
B. OSPF routers must establish an adjacency before exchanging Hello packets
C. The neighbor relationship is selected from the adjacency relationship and formed to exchange routing information
D. Not all neighbor relationships can be adjacenciescorrect
View answer
Correct Answer: D
Question #27
About the description about the OSPF calculating the shortest path tree stage, which is the correct?
A. The first stage calculates the Stub network segment, and the second stage calculates the router node and Transit network segment
B. The first stage calculates routing nodes and Transit network segments, and the second stage calculates Stub network segments
C. The first stage calculates the stub segment, and the second stage calculates the routing node
D. The first stage calculates the routing nodes, and the second stage calculates the Stub network segment
View answer
Correct Answer: B
Question #28
In SSM, which version of IGMP needs to be used?
A. IGMPv1
B. IGMPv3correct
C. IGMPv2
D. IGMPv4
View answer
Correct Answer: B
Question #29
There is a message in the BGP protocol that is periodically sent between BGP neighbors to maintain the neighbor relationship. This message is:
A. Update
B. Hello
C. open
D. Keepalivecorrect
View answer
Correct Answer: D
Question #30
The four routers run IS-S and have established an adjacency relationship. The area numbers and router levels are marked in the figure. What is the cost of R4 reaching 10.0.2.2/32?
A. 40
B. 10
C. 20
D. 30correct
View answer
Correct Answer: D

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