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NEW QUESTION 233
As shown in the figure, RTA, RTB, and RTC run the OSPF routing protocol, and the cost of each link is shown in the figure. Run OSPF protocol between RTA, RTB and RTC, and successfully establish neighbors. Run BGP between RTA and RTB and successfully establish IBGP neighbors; meanwhile, RTA, RTB and RTD establish EBGP neighbors. RTC imports the external route 172.16.1.0/24 into OSPF, the import type is tpe1, and the cost is 200. Configure OSPF routes to import BGP on RTA and RTB, and do not set any routing policy.
According to the above scenario analysis, the correct description below is ______.
- A. Two BGP routes of 172.16.1.0/24 are learned on the RTD, and the MED values are both 200
- B. Two BGP routes of 172.16.1.0/24 are learned on RTD, with MED values of 210 and 220 respectively
- C. Two BGP routes of 172.16.1.0/24 are learned on RTD, and the route with the smaller router-id is preferred
- D. Two BGP routes of 172.16.1.0/24 are learned on RTD, with MED values of 210 and 200
- E. Two BGP routes of 172.16.1.0/24 are learned on RTD, and the route with MED of 210 is preferred
- F. Two BGP routes of 172.16.1.0/24 are learned on RTD, and the route with MED of 200 is preferred
Answer: B,E
NEW QUESTION 234
The messages that IS-IS periodically sends on broadcast network type links are ________.
- A. PSNP
- B. CSNP
- C. LSP
- D. IIH
Answer: B,D
NEW QUESTION 235
In the IS-IS network as shown in the figure, when the route is stable, shut down the interface where the IP address 192.168.24.1 is located on the RTB. Then IS-IS topology ______ , IP routing information ______ .
- A. no change, change
- B. no change, no change
- C. change, change
- D. change, no change
Answer: C
NEW QUESTION 236
Which of the following methods of routing filtering are feasible?
- A. By filtering routing information carried in routing protocol packets
- B. For OSPF, the routing information calculated by LSDB can be filtered
- C. By filtering routing protocol packets
- D. For OSPF, 5 types of LSA can be filtered on ABR
Answer: A,B,C
NEW QUESTION 237
Regarding the Stub area and NSSA area of the OSPF protocol, the following statements are incorrect: _______
- A. The injection of Tpe5 LSA is not allowed in the stub area, while the injection of Tpe5 LSA is allowed in the NSSA area
- B. Both stub area and NSSA area allow injection of Tpe3 LSA
- C. Tpe4 LSA injection is not allowed in stub area and NSSA area
- D. The injection of Tpe7 LSA is not allowed in the stub area, while the injection of Tpe7 LSA is allowed in the NSSA area
Answer: B,C,D
NEW QUESTION 238
As shown in the figure, 4 routers are connected to an Ethernet link. The router interface is a broadcast network type, and the DIS election has been carried out and an adjacency relationship has been established.
If the RTA restarts at this time, after the restart is completed, the DIS on this link is ______
- A. RTD
- B. RTA
- C. RTC
- D. RTB
Answer: B
NEW QUESTION 239
Run the command and display information on the router as follows:
<RTA>displaisis brief
ISIS(1) Protocol Brief Information:
network-entit:
01.1111.1111.1111.00
is-level: level-1-2
cost-ste: narrow
preference: 15
Lsp-length receive: 1497
Lsp-length originate: level-1 1476
level-2 1476
maximum imported routes number: 10000
Timers:
lsp-max-age: 1200
lsp-refresh: 900
Interval between SPFs: 10
From the above information, you can know RTA______.
- A. Is a Level-1-2 router
- B. Its Stem-ID is 1111.1111.1111
- C. It is a Level-1 router
- D. Its Stem-ID is 1111.1111.1111.00
Answer: A,B
NEW QUESTION 240
Which of the following descriptions about BGP Peer Group is correct?
- A. Only inbound oute-polic can be configured for BGP Peerr Group
- B. The default type of BGP Peer Group is internal
- C. The default type of BGP Peer Group is external
- D. BGP Peer must belong to a certain BGP Peer Group, otherwise the neighbor relationship cannot be established
Answer: B
NEW QUESTION 241
In the topology shown in the figure, by executing the import-route direct command on RTA, inject 192.168.0.0/24, 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24 and 192.168.4.0/ 24 These five routes, and perform the following configuration on RTA, RTB and RTC respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 1.1.1.1 0.0.0.0
RTA-ospf-1-area-0.0.0.1]nssa
RTA-ospf-1]asbr-summar192.168.0.0 255.255.224.0 not -advertise
RTB]ospf 1
RTB-ospf-1]area 1
RTB-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]nssa default-route-advertise
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
Then the impossible routes in the RTC routing table are _____
- A. 192.168.3.0/24
- B. 2.2.2.3/32
- C. 1.1.1.1/32
- D. 192.168.0.0/20
Answer: A,D
NEW QUESTION 242
There are a lot of static routes with tags of 100 and 200 on RTA. RTA and RTB run OSPF routing protocol, and RTB needs to learn all static routes on RTA. At the same time, it is required that on RTB, the priority of the route with tag 200 is 200.
To achieve the above requirements, which of the following configurations is incorrect?
- A. RTA configuration: route-polic1 permit node 10 if-match tag 100 appltag 100 route-polic1 permit node 20 if-match tag 200 appltag 200 ospf import-route static route-polic1 RTB configuration: route-polic2 permit node 10 if-match tag 200 applpreference 200 ospf preference ase route-polic2 150
- B. RTA configuration: ospf import-route static RTB configuration: route-polic2 permit node 10 if-match tag 200 ospf preference ase route-polic2 200
- C. RTA configuration: route-polic1 permit node 10 if-match tag 100 route-polic1 permit node 20 if-match tag 200 ospf import-route static route-polic1 RTB configuration: route-polic2 permit node 10 if-match tag 200 applpreference 200 ospf preference ase route-polic2 150
- D. RTA configuration: route-polic1 permit node 10 if-match tag 100 appltag 100 route-polic1 permit node 20 if-match tag 200 appltag 200 ospf import-route static route-polic1 RTB configuration: route-polic2 permit node 10 if-match tag 200 ospf preference ase route-polic2 200
Answer: B,C,D
NEW QUESTION 243
In the OSPF protocol, the types of LSAs that ASBRs cannot aggregate are _______
- A. Tpe5 LSA
- B. Tpe7 LSA
- C. Tpe3 LSA
- D. Tpe4 LSA
Answer: C,D
NEW QUESTION 244
In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
rtb-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTB-ospf-1]import-route direct
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
rtc]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]stub no-summarRTC-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
rtc-ospf-1-area-0.0.0.2]network 3.3.3.3 0.0.0.0
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 4.4.4.4 0.0.0.0
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]stub
Which of the following routes ______ cannot possibly exist in the RTD's routing table.
- A. 10.0.0.0/24
- B. 0.0.0.0/0
- C. 1.1.1.1/32
- D. 2.2.2.2/32
Answer: A,C,D
NEW QUESTION 245
It is known that the configuration of a router's PBR is as follows:
policy-based-route pbr_a permit node 10
if-match acl 3000
if-match packet-length 101 1000
apploutput-interface serial 2/0
Assuming the policy is successfully applied, how will the relevant traffic on this router be forwarded?
- A. Data flow matching Alc3000 will be forwarded according to policy routing
- B. Packets with a length of 101~1000 bytes will be forwarded according to policy routing
- C. The data flow that matches the Alc3000 and the packet whose length is more than 1000 bytes will not be forwarded according to the policy route
- D. In the data flow matching Alc3000, the packets with the packet length of 101~1000 bytes will not be forwarded according to the policy routing
Answer: C
NEW QUESTION 246
As shown in the figure, RTB establishes EBGP neighbor relationship with RTA and RTD, and AS100 uses confederation to solve large-scale routing problems. If RTA advertises route 10.1.1.0/24 to RTB.
Then regarding the advertisement of the route on RTB, the following statement is correct is ______.
- A. If the route carries the NO_EXPORT_SUBCONFED attribute, RTB will not advertise the route to RTC, but will advertise the route to RTD.
- B. If the route carries the NO_EXPORT_SUBCONFED attribute, RTB will not advertise the route to RTC and RTD.
- C. If the route carries the NO_EXPORT attribute, RTB will not advertise the route to RTC, but will advertise the route to RTD.
- D. If the route carries the NO_EXPORT attribute, RTB will not advertise the route to RTC and RTD.
Answer: B
NEW QUESTION 247
In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
RTB-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
RTC]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]stub
RTC-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 4.4.4.4 0.0.0.0
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]stub
Which of the following routes may exist in the RTD routing table ______.
- A. 1.1.1.1/32
- B. 10.0.0.0/24
- C. 3.3.3.3/32
- D. 2.2.2.2/32
Answer: B,C,D
NEW QUESTION 248
In the IS-IS network shown in the figure, after the routes of each router are stable, the RTA learns ______ IS-IS Level-2 routes through neighbors.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 249
Regarding the default metric value of different routing protocols when importing routes, the following description is correct: __________
- A. When OSPF routing protocol redistributes routes, the default cost of the redistributed routes is 0
- B. BGP uses the cost value of the imported route plus 1 as the MED value after importing the BGP domain
- C. When OSPF routing protocol redistributes routes, the default cost of the redistributed routes is 1
- D. BGP uses the cost value of the imported route as the MED value after importing the BGP domain
Answer: C,D
NEW QUESTION 250
In the network as shown in the figure, no dynamic routing protocol is enabled between all routers, and only static routes can be configured.
Then the correct configuration on RTE should be _________.
- A. ip route-static 10.0.0.0 255.255.252.0 S2/0
- B. ip route-static 10.0.0.0 255.255.254.0 S1/0
- C. ip route-static 10.0.0.0 255.255.252.0 S1/0
- D. ip route-static 10.0.0.0 255.255.254.0 S2/0
Answer: C
NEW QUESTION 251
Regarding the Tpe3 LSA in the OSPF protocol, the correct statement is ______
- A. Tpe3 LSA actually transmits routing entries, not link state descriptions
- B. If the Tpe3 LSA passes through multiple ABRs during the transmission process, all fields will not be changed.
- C. Tpe3 LSA can be filtered out in some cases
- D. Tpe3 LSA is generated by ABR
Answer: A,C,D
NEW QUESTION 252
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