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NEW QUESTION # 309
IGMP Snooping cannot solve the bandwidth waste of multicast traffic on the Layer 2 switch, that is, whether IGMP Snooping is configured on the Layer 2 switch has no effect on the multicast traffic.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 310
Which of the following parameters are modified, the IS-IS neighbor relationship needs to be re-established? (Multiple choice)
- A. Modify the IF address of the IS-IS interface
- B. Modify the sending interval of llH on the IS-IS interface
- C. Modify the Level of the IS-IS interface
- D. Modify the Cost value of the IS-IS interface
Answer: A,C
NEW QUESTION # 311
When the stateful inspection firewall forwarding a subsequent packet (non-first packet), which is mainly based on the following items?
- A. OFIB table
- B. MAC address table
- C. Route table
- D. Session table
Answer: D
NEW QUESTION # 312
Which of the following description about the default routing of each protocol is wrong?
- A. OSPF cannot deliver default routes
- B. BGP can deliver default routes
- C. ISIS can issue default routes
- D. Static default route can be configured
Answer: A
NEW QUESTION # 313
Compared with routers and switching machines, what is the unique forwarding module of the firewall?
- A. LPU
- B. Switch fabric board
- C. SPU
- D. MPU
Answer: C
NEW QUESTION # 314
Which of the following is the reason why two routers directly connected can establish adjacency relationship but cannot establish OSPF adjacency relationship?
- A. Different network types are set on the two interfaces directly connected to the two routers
- B. The ospf dr-priority of the two directly connected ports is set to 0
- C. Both routers use the same Router ID
- D. The two routers use different Process IDs
Answer: B
NEW QUESTION # 315
Regarding the description of the routing tool, which of the following statement is wrong?
- A. The access control list (ACL) is used to match the IP routing information or the address of the data packet
- B. Prefix list (ip-prefix) matching object is the destination address of routing information
- C. route-policy can only match routes and data packets, and cannot be used to modify routing attributes or data packet forwarding behavior
- 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
Answer: C
NEW QUESTION # 316
BGP prefers the route with the best Origin attribute value. Origin attribute values are: EGP, IGP, ().
Answer:
Explanation:
incomplete
NEW QUESTION # 317
Routes injected into BGP by redistribution command, whose Origin attribute is Incomplete.
- A. True
- B. False
Answer: A
NEW QUESTION # 318
The state inspection firewall uses the session table to track the active TCP session and UDP session, and the firewall security policy determines which sessions to establish, and the data packet will only be forwarded when it is associated with the session.
- A. True
- B. False
Answer: A
NEW QUESTION # 319
Among the commonly used routing policy tools for BGP, what can be used to match a specific AS_path?
- A. ip-prefix
- B. filter-policy
- C. community-filter
- D. ip as-path-filer
Answer: D
NEW QUESTION # 320
The linkage between BFD and OSPF is to speed up the response of OSPF protocol to network topology changes through the rapid detection of link failures by BFD, which can increase the OSPF convergence speed from seconds to milliseconds.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 321
When routers running OSPF protocol exchange DD packets, which of the following parameters will be used to elect the master-slave relationship?
- A. Area ID
- B. DR priority of the interface
- C. Router ID
- D. The IP address of the interface
Answer: C
NEW QUESTION # 322
In the IS-IS broadcast network, which multicast MAC address does the Level-1 router use as the destination address for sending IIH?
- A. 0100-5E00-0001
- B. 0180-c200-0014
- C. 0180-c200-0015
- D. 0180-c200-0000
Answer: B
NEW QUESTION # 323
Which of the following is the multicast MAC address corresponding to the multicast address 224.011?
- A. 00-00-5e-00-01-01
- B. 01-00-5e-00-01-00
- C. 01-00-5e-00-01-01
- D. 00-00-5e-00-01-00
Answer: C
NEW QUESTION # 324
RSTP converges faster than STP because of? (Multiple choice)
- A. In RSTP, after a port is elected as a designated port, it will first enter the Discarding state, and then quickly enter the Forwarding state through the Proposal/Agreement mechanism
- B. The concept of edge port is introduced in RSTP. The edge port does not participate in the RSTP operation, and can be directly transferred from Disable to Forwarding state .
- C. If a root port in the network fails, the optimal Alternate port in the network will become the root port and enter the Forwarding state
- D. If a designated port in the network fails, the optimal Alternate port in the network will become the designated port and enter the Forwarding state
Answer: A,B,C
NEW QUESTION # 325
Stacking: refers to connecting two or more switches to each other through a dedicated connection cable. For example, to connect two switches, you can directly connect the UP-stacking port of one stacking switch to the DOWN stacking of another stacking switch. ports to expand the number of ports on a single switch.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 326
Which of the following statements about the BFD detection mode is correct? (Multiple choice)
- A. In query mode, once a BFD session is established, the system will no longer periodically send BFD control packets
- B. In asynchronous mode, the systems will send BFD control packets at the negotiated cycle. If a system does not receive the BFD control packets from the peer within the detection time, it will declare the status of the BFD session Down.
- C. Asynchronous detection mode does not support echo function
- D. Asynchronous mode is a commonly used BFD detection mode
Answer: A,B,C,D
NEW QUESTION # 327
As shown in the figure below, the RTC announces 10.1.1.0/24 into BGP, and the RTC is the client of the route reflector RTB, the router RT () will not receive the route entry 10.1.1.0/24 reflected by the RTB. (Use Uppercase)
Answer:
Explanation:
Capital letter A
NEW QUESTION # 328
R1, R2 , R3 , R4 run OSPF , and the area ID is as shown in the figure, then () will generate Type-3 LSA. (Please fill in the device name, such as R1)
Answer:
Explanation:
R2
NEW QUESTION # 329
Will setting the Community attribute of the route through the routing policy affect the route selection?
- A. It cannot be affected, because the Community attribute of the route is a non-transitional attribute and cannot be passed between routers
- B. It can be affected indirectly. By setting the Community attribute of the route, the route can be classified, and then different attributes related to route selection can be set according to the category. These attributes only include Loacal_Pre and MED, so as to achieve the purpose of affecting route selection
- C. It can be indirectly affected. By setting the Community attribute of the route, the route can be classified, and then set different route selection-related attributes according to the category, such as Local_Pre, MED, etc., to achieve the purpose of affecting route selection
- D. After the router receives the routing update whose Commmity attribute is No_ Advertise, it will not advertise it outside the local AS.
Answer: C
NEW QUESTION # 330
If the port DR Priority of a router is set to 0, then the router interface is allowed to be elected as DR or BDR, but the priority is the lowest.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION # 331
Which of the following descriptions about the default security zones Trust and Untrust of the firewall is correct? (Multiple choice)
- A. The direction of accessing the Untrust zone from the Trust zone is the Outboud direction
- B. The security level of Untrust is 50
- C. The direction of accessing the Untrust area from the Trust area is the Inboud direction
- D. The security level of Trust is 85
Answer: A,D
NEW QUESTION # 332
Which of the following option packets belong to OSPF protocol packets? (Multiple choice)
- A. LSA
- B. LSR
- C. Hello
- D. LSU
Answer: B,C,D
NEW QUESTION # 333
Route introduction refers to the operation of publishing routing information from one routing protocol to another routing protocol.
Which of the following statements about routing imports is correct? (Multiple choice)
- A. The routing protocol itself has the anti-loop feature, so there is no need to consider the loop problem when the routes enter each other.
- B. When implementing route import, you can also deploy route air control, so as to realize the flexible control of correct business traffic
- C. By importing routes, routing information can be transferred between different routing protocols
- D. When importing routes, it is necessary to pay attention to the fact that different vendors may have different routing priority agreements
Answer: B,C,D
NEW QUESTION # 334
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H12-821_V1.0-ENU Exam Practice Questions prepared by Huawei Professionals: https://passguide.dumpexams.com/H12-821_V1.0-ENU-vce-torrent.html