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Free Huawei H12-821 Test Practice Online? | SPOTO

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Question #1
Which of the following statements regarding DR/BDR are false? (Choose all that apply.)
A. n a broadcast network, DR and BDR must be elected
B. ll DR others establish neighbor relationships with DR and BDR only
C. R others listen on the multicast address 224
D. R others listen on the network address 224
View answer
Correct Answer: AD
Question #2
Which of the following statements regarding OSPF AS-External-LSA are true? (Choose all that apply.)
A. et mask is set to all 0s
B. dvertising Router is set as the router ID of an ASBR
C. ink State ID and Advertising Router can uniquely identify an AS-External-LSA
D. ink State ID is set as an address on the destination network segment
View answer
Correct Answer: BC
Question #3
Regarding the description of IGMP Snooping-working mechanism, which is the correct?
A. The layer 2 switch establishes and maintains the PIM routing table on the layer 2 by continuously monitoring IGMP messages
B. When IGMP Snooping is not running, the multicast message will be broadcast on the second layer
C. If the host sends an IGMP leave message, the switch will add the host to the corresponding multicast table
D. If the host sends an IGMP host report message, the switch will delete the multicast entry corresponding to the hos
View answer
Correct Answer: B
Question #4
The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.
A. TRUE
B. FALSEcorrect
View answer
Correct Answer: B
Question #5
What are the key components of building an IP wide-area bearer network solution together with Huawei NetEngine intelligent routers?
A. iMaster NCE-Fabric
B. iMaster NCE-IP
C. iMaster NCE-Campus
D. iMaster NCE-WANcorrect
View answer
Correct Answer: D
Question #6
IGMPV3 not only supports IGMPv1 General Query and IGMPv2 Group-Specific Query, and also IGMPv3 Source/Group-Specific Query.
A. TRUE
B. FALSE
View answer
Correct Answer: A
Question #7
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 #8
Which function does the switch control plane not include?
A. Business processing
B. Routing operation
C. System loadingcorrect
D. Traffic Statistics
View answer
Correct Answer: C
Question #9
Which of the following statement about OSPF neighbor information is wrong?
A. The router id of the neighbor is 2
B. This router is the Mastercorrect
C. The address of DR is 10
D. The router id of this router is 1
View answer
Correct Answer: B
Question #10
On the OSPF network shown in the figure, an adjacency has been established between R1 and R2. An engineer configures the commands in the figure on R2. In this case, which of the following routing entries may exist in the routing table of R2?
A. 10
B. 10
C. 10
D. 10
View answer
Correct Answer: ABC
Question #11
The default priority of the VRRP device in the backup group is:
A. 0
B. 200
C. 150
D. 100correct
View answer
Correct Answer: D
Question #12
Which of the following tools is used to filter routing information and set routing attributes for filtered routing information?
A. route-policycorrect
B. as-path-filter
C. policy-based-route
D. IP-prefix
View answer
Correct Answer: A
Question #13
Which of the following PIM protocol packets have unicast destination addresses.
A. Register Stop
B. Bootstrap
C. Graftcorrect
D. Assert
View answer
Correct Answer: C
Question #14
Which of the following descriptions about OSPF default routing is wrong?
A. The OSPF default route can be issued by the Area Border Router (ABR) to issue Type 3 default LSAs to guide routers in the area to forward packets between areas
B. When the router has no exact matching route, it can forward the message through the default route
C. Due to the hierarchical management of OSPF routes, the priority of class 5 and class 7 default routes is higher than that of class 3 default routes
D. Autonomous System Boundary Router (ASBR) publishes default LSA of type 5 or default LSA of type 7, which is used to guide routes in the autonomous system (AS) to access the outside of the autonomous systemcorrect
View answer
Correct Answer: D
Question #15
Which of the following description about the prefix list is wrong?
A. The prefix list can match the prefix number and prefix length
B. The prefix list can be used for packet filteringcorrect
C. The prefix list can be used to filter IP prefixes
D. The prefix list has a stronger matching function for routing masks than the access control list
View answer
Correct Answer: B
Question #16
The configuration command for linkage between VRRP and BFD is:
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
As shown in the figure, the stateful inspection firewall will forward the packet because the packet conforms to the firewall session state.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #18
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 #19
Regarding the description of network address port translation (NAP) and network address translation only (No-PAT), which of the following statements is correct?
A. No-PAT supports protocol address translation at the network layercorrect
B. No-PAT only supports protocol port translation at the transport layer
C. After NATP conversion, for external network users, all packets will only come from the same IP address
D. NAPT only supports protocol address translation at the network layer
View answer
Correct Answer: A
Question #20
Regarding the description of the summary automatic command and BGP aggregation, the error is:
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 #21
The four routers run IS-S and have established adjacency. The area numbers and router levels are marked in the figure. Which of the following statements is correct?
A. Both R2 and R3 will generate Level-1 LSPs with ATT set
B. R1 does not have the LSP generated by R4, so R1 can only communicate with R4 through the default route
C. Both R2 and R3 will generate LSPs of Level 1-2 with ATT set
D. R2 and R3 learn default routes from each other, and a routing loop occurs in the network
View answer
Correct Answer: A
Question #22
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 #23
Which BGP route will send BGP neighbors without BGP path load sharing enabled?
A. All BGP routes learned from all neighbors
B. Only the best route preferred by BGPcorrect
C. Only routes learned from IBGP
D. Only routes learned from EBGP
View answer
Correct Answer: B
Question #24
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 #25
Which of the following statements regarding OSPF neighbor relationship and adjacency is true?
A. Not all neighbors can establish adjacencies
B. Neighbor relationships are selected from adjacencies to exchange routing information
C. OSPF routers must establish an adjacency before exchanging information
D. Adjacencies are maintained using OSPF DD packet
View answer
Correct Answer: A
Question #26
When performing source NAT configuration and having no-pat configuration parameters, which of the following statements is correct?
A. Only the destination IP address is translated
B. Simultaneous source IP address and source port translation
C. Only source IP address translation is performedcorrect
D. Perform destination IP address and destination port translation
View answer
Correct Answer: C
Question #27
Regarding the default routes of each protocol, which of the following description is wrong?
A. BGP can deliver default routes
B. ISIS can issue default routes
C. OSPF cannot deliver the default routecorrect
D. Static default routing can be configured
View answer
Correct Answer: C
Question #28
To prevent inter - area routing loops, OSPF does not allow advertising routing information between two non - backbone areas and allows sing routing information only within an area or between the backbone area and a non - backbone are a. Therefore, each ABR must be connected to the backbone area.
A. TRUE
B. FALSE
View answer
Correct Answer: A
Question #29
In the network shown in the figure, R1 is configured with route penetration, then R1 sends the LSP of Level1-2 to R3, so that R3 can learn the entire network route.
A. True
B. Falsecorrect
View answer
Correct Answer: B

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