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NEW QUESTION 274
In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD respectively:
RTA] ospf 1 router-id 1.1.1.1
RTA-ospf-1] area 0
RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.0] network 1.1.1.1 0.0.0.0
RTB] ospf 1 router-id 2.2.2.2
RTB-ospf-1] area 0
RTB-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
RTB-ospf-1-area-0.0.0.0] network 2.2.2.2 0.0.0.0
RTB-ospf-1] area 1
RTB-ospf-1-area-0.0.0.1] network 192.168.2.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1] vlink-peer 3.3.3.3
RTC] ospf 1 router-id 3.3.3.3
RTC] ospf 1]import direct
RTC-ospf-1] area 1
RTC-ospf-1-area-0.0.0.1] network 192.168.2.0 0.0.0.255
RTC-ospf-1-area-0.0.0.1] vlink-peer 2.2.2.2
RTC-ospf-1] area 2
RTC-ospf-1-area-0.0.0.2] network 192.168.3.0 0.0.0.255
RTD] ospf 1 router-id 4.4.4.4
RTD-ospf-1] area 2
RTD-ospf-1-area-0.0.0.2] network 192.168.3.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2] network 4.4.4.4 0.0.0.0
Then the router type in the OSPF area of RTC is _______
- A. ABR
- B. In-area routers
- C. ASBR
- D. Backbone router
Answer: A,C,D
NEW QUESTION 275
Among the following OSPF protocol states, those that are not stable are ________.
- A. Loading
- B. Init
- C. Attempt
- D. 2-waC
Answer: A,B,C
NEW QUESTION 276
RTA and RTB establish an IS-IS adjacency relationship on a P2P type link as shown in the figure. The figure shows RTB from running IS-IS to sending CSNP. Then the message types of messages 1 to n may be ______.
- A. PSNP
- B. IIH
- C. CLV
- D. LSP
Answer: B,D
NEW QUESTION 277
Regarding the comparison between OSPF protocol and RIPv2 protocol, the following statement is correct is _______.
- A. OSPF protocol supports VLSM, while RIPv2 protocol does not support
- B. The two protocols are common IGP routing protocols, and both support automatic aggregation by class
- C. Both protocols support routing information triggered updates
- D. RIPv2 uses hops as routing metric, while OSPF uses cost as routing metric
Answer: C,D
NEW QUESTION 278
Regarding the first type of external route and the second type of external route in OSPF, which statement is correct is ________
- A. The first type of external routes are generated by injecting IGP routes
- B. If the routing information of the same network segment is learned through the first type of external routing and the second type of external routing at the same time, under the same conditions, the first type of external routing information will be preferred.
- C. The first type of external routes are generated by injecting BGP routes
- D. By default, the routes imported into the OSPF protocol through other routing protocols are the second type of external routes
Answer: B,D
NEW QUESTION 279
From RTA to RTD, etc., perform IS-IS networking according to the diagram, and the Stem-IDs of RTA, RTC, and RTD are shown in the diagram.
Then in the following options ______ can be used as the Stem-ID of RTB.
- A. 0004.0000.0000
- B. 0002.0003.0000
- C. 0003.0000.0000
- D. 0002.0000.0000
Answer: B,D
NEW QUESTION 280
In the network shown in the figure, the BGP routing learning between the routers is normal, and the BGP routing attributes all take default values.
After the route 8.0.0.0 is imported into BGP on RTA, if the next hop of route 8.0.0.0 on RTD is to point to RTB, the following adjustment methods are feasible again.
- A. Set the Local Preference value of the route sent by RTC to RTD to 50
- B. Set the Local Preference value of the route sent by RTB to RTD to 50
- C. Set the Local Preference value of the route sent by RTB to RTD to 200
- D. Set the Local Preference value of the route sent by RTC to RTD to 200
Answer: A,C
NEW QUESTION 281
An MSR router has four interfaces whose IP addresses are Loopback0:1.1.1.1/32, Loopback1:2.2.2.2/32, GE0/0:172.16.1.1/30, and GE0/1:192.168.1.1/30. Running OSPF protocol and enabling OSPF on only two interfaces, the Router ID selected by this router is _______.
- A. 192.168.1.1
- B. 172.16.1.1
- C. 1.1.1.1
- D. 2.2.2.2
Answer: D
NEW QUESTION 282
Regarding filter-polic filtering RIP routing, which of the following statements are correct?
- A. RIP routes can be filtered by configuring ACL
- B. The routing information can be filtered through the publishing gateway
- C. The routing information can be filtered through the interface
- D. RIP routes can be filtered through the IP address prefix list
Answer: A,B,C,D
NEW QUESTION 283
Which of the following levels does the SOA-based network architecture divide the enterprise IT system into? (Choose one or more)
- A. Application layer
- B. Business layer
- C. Service layer
- D. Network layer
Answer: A,C
NEW QUESTION 284
As shown in the figure: RTA and RTB are IBGP neighbors, and RTB and RTC are EBGP neighbors.
If the community attribute is used on the router RTA, so that the route 10.10.10.0/24 on the RTA can only be published to the RTB, but cannot be forwarded to the RTC through the RTB, what kind of community attribute value should be set for 10.10.10.0/24 on the RTA ?
- A. no-export
- B. no-advertise
- C. no-advertise-subconfed
- D. no-export-subconfed
Answer: A,B,D
NEW QUESTION 285
In the topology shown in the figure, the correct IP addresses have been configured on RTA, RTB and RTC, and the network layer is reachable.
If OSPF neighbors need to be established between routers and routes are transmitted correctly, which of the following configurations are feasible?
- A. RTA-Serial5/0] fr map ip 192.168.1.3 20 broadcast RTA-Serial5/0] fr map ip 192.168.1.2 50 broadcast RTA-Serial5/0] ospf network-tpe p2mp RTA] ospf 1 router-id 1.1.1.1 RTA-ospf-1] area 0 RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTB-Serial5/0] fr map ip 192.168.1.1 30 broadcast RTB-Serial5/0] ospf network-tpe p2mp RTB] ospf 1 router-id 2.2.2.2 RTB-ospf-1] area 0 RTB-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTC-Serial5/0] fr map ip 192.168.1.1 40 broadcast RTC-Serial5/0] ospf network-tpe p2mp RTC] ospf 1 router-id 3.3.3.3 RTC-ospf-1] area 0 RTC-ospf-1-area-0.0.0.0] network 192.168. 1.0 0.0.0.255
- B. RTA-Serial5/0] ospf dr-priorit100 RTA] ospf 1 router-id 1.1.1.1 RTA-ospf-1] peer 192.168.1.2 RTA-ospf-1] peer 192.168.1.3 RTA-ospf-1] area 0 RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTB] ospf 1 router-id 2.2.2.2 RTB-ospf-1] peer 192.168.1.1 RTB-ospf-1] area 0 RTB -ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTC] ospf 1 router-id 3.3.3.3 RTC-ospf-1] peer 192.168.1.1 RTC-ospf-1] area 0 RTC-ospf- 1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
- C. RTA] ospf 1 router-id 1.1.1.1 RTA-ospf-1] peer 192.168.1.2 RTA-ospf-1] peer 192.168.1.3 RTA-ospf-1] area 0 RTA-ospf-1-area- 0.0.0.0] network 192.168.1.0 0.0.0.255 RTB] ospf 1 router-id 2.2.2.2 RTB-ospf-1] area 0 RTB-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTC] ospf 1 router-id 3.3.3.3 RTC-ospf-1] area 0 RTC-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
- D. RTA] ospf 1 router-id 1.1.1.1 RTA-ospf-1] area 0 RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTB] ospf 1 router-id 2.2. 2.2 RTB-ospf-1] area 0 RTB-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTC] ospf 1 router-id 3.3.3.3 RTC-ospf-1] area 0 RTC-ospf- 1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
Answer: A,B
NEW QUESTION 286
Regarding the Local_Preference attribute of BGP, the following statement is wrong is ______
- A. The attribute value of Local_Preference only affects the traffic leaving the AS, not the traffic entering the AS
- B. BGP router passes this attribute to IBGP neighbor
- C. BGP router passes this attribute to EBGP neighbors
- D. The Local_Preferenc attribute is a recognized must-follow attribute
Answer: C,D
NEW QUESTION 287
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 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]nssa
RTC-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 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]nssa
RTD-ospf-1]import-route direct
Which of the following routes may exist in the RTD routing table ______.
- A. 0.0.0.0/0
- B. 3.3.3.3/32
- C. 2.2.2.2/32
- D. 1.1.1.1/32
Answer: B,C
NEW QUESTION 288
In the IS-IS network shown in the figure, RTA and RTB are configured as follows:
RTA]isis
RTA-isis-1]is-level level-1
RTA-isis-1]network-entit01.1111.1111.1111.00
RTA-isis-1]interface serial 2/0
RTA-Serial2/0]isis enable 1
RTB]isis
RTB-isis-1]network-entit01.2222.2222.2222.00
RTB-isis-1]interface serial 1/0
RTB-Serial1/0]isis enable 1
RTB-Serial1/0]isis circuit-level level-1
Then between RTA and RTB ______
- A. Establish both Level-1 and Level-2 adjacencies
- B. Only establish Level-2 adjacencies
- C. Unable to establish adjacency
- D. Only establish Level-1 adjacency
Answer: D
NEW QUESTION 289
Which of the following is incorrect about the filter-policy filter
- A. You can use RIP to close the SSL connection under abnormal conditions
- B. Filter-policy can be used in RIP to filter IS-IS routing information received from neighbors
- C. You can use filter-policy in OSPF to filter routing information between areas
- D. Filter-polic can be used in RIP to filter the entire IP routing table sent to neighbors
Answer: A,C
NEW QUESTION 290
Features of distance vector routing protocols include ________. (select one or more)
- A. use cost to destination as route metric
- B. Route convergence is fast
- C. hop-by-hop delivery of routing updates
- D. Periodically send routing updates
Answer: C,D
NEW QUESTION 291
In the IS-IS network shown in the figure, RTA, RTC, RTD, and RTE establish Level-2 adjacency with each other; RTB, RTA, and RTC establish Level-1 adjacency. After the reasons of each router are stable, RTB selects the next hop as ______ when accessing 192.168.5.1.
If RTA adds the following configuration at this time:
RTA-isis-1]import-route isis level-2 into level-1
Then RTB selects the next hop as ______ when it visits 192.168.5.1 again.
- A. RTA;RTA
- B. RTC; RTC
- C. RTC;RTA
- D. RTA;RTC
Answer: C
NEW QUESTION 292
Regarding the BGP aggregation function, which of the following statements are correct?
- A. When using BGP manual aggregation, you can use the attribute-polic- parameter to change the attributes of the aggregated route for more flexible control.
- B. BGP aggregation is divided into automatic aggregation and manual aggregation.
- C. BGP manual aggregation can advertise aggregated routes and specific routes at the same time, or select specific routes to generate aggregated routes.
- D. Because BGP supports CIDR, BGP automatic aggregation can automatically aggregate the routes that exist in the routing table into natural mask routes.
Answer: A,B,C
NEW QUESTION 293
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