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NEW QUESTION 173
In the IS-IS network as shown in the figure, RTB is configured with route aggregation.
So which of the following routes are included in the RTC IS-IS routing table?
- A. 172.16.1.0/24
- B. 172.16.3.0/24
- C. 172.16.2.0/24
- D. 172.16.0.0/22
Answer: D
NEW QUESTION 174
After the BGP router receives the route from the peer, the correct statement based on the operation process is ____________.
- A. After completing the route aggregation of the received routes, direct them to their peers according to the publishing strategy
- B. Receiving route filtering and attribute setting is the first step
- C. After completing the route optimization of the received route, perform the route installation
- D. After completing the routing installation of the received routing, perform routing optimization
Answer: B,C
NEW QUESTION 175
The contents of the OPEN message of the BGP protocol include ____________
- A. Router ID
- B. Hold timer value
- C. AS Number
- D. BGP protocol version number
Answer: A,B,C,D
NEW QUESTION 176
The description of NET in IS-IS is wrong.
- A. NET is a special type of NSAP address
- B. In the IP network, the NSEL value in the NET address is all 0
- C. Each router can have up to 3 NETs, and these three NETs can be arbitrary
- D. The full name of NET is Network EntitTitle, which is similar to the Router ID in OSPF and BGP
Answer: C
NEW QUESTION 177
Regarding the filter-polic filter, which of the following statements are correct?
- A. You can use filter-polic in RIP to filter the entire IP routing table sent to neighbors
- B. You can use filter-polic in IS-IS to filter IS-IS routing information received from neighbors
- C. You can use filter-polic in RIP to filter RIP routing information received from neighbors
- D. You can use filter-polic in OSPF to filter the OSPF routing information calculated by LSA
Answer: A,C,D
NEW QUESTION 178
Which of the following levels does the SOA-based network architecture divide the enterprise IT system into? (Choose one or more)
- A. Business layer
- B. Service layer
- C. Application layer
- D. Network layer
Answer: B,C
NEW QUESTION 179
Among the following features that can enhance the security of OSPF are _______
- A. Prohibit the port from sending OSPF packets
- B. Filter Tpe3 LSA
- C. Verification
- D. Virtual connection
Answer: A,B,C
NEW QUESTION 180
As shown in the figure, RTA and RTB establish an IS-IS adjacency relationship on a P2P type link. After RTB sends LSP_N to RTA, it sends LSP_N to RTA after a period of time. RTA then sends ______ to RTB. From the above, it can be seen that ______ is lost.
- A. CSNP, the first LSP_N
- B. PSNP, the first LSP_N
- C. PSNP, the second LSP_N
- D. CSNP, the second LSP_N
Answer: B
NEW QUESTION 181
In the topology shown in the figure, the following configurations are performed on RTA and RTB respectively:
RTA]ospf 1
RTA-ospf-1]area 1
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]network 10.0.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.4.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.7.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.8.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.15.0 0.0.0.255
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-0.0.0.1]abr-summar192.168.0.0 255.255.248.0
Then which of the following routes may exist in the RTC routing table_____
- A. 192.168.7.0/24
- B. 192.168.0.0/20
- C. 192.168.15.0/24
- D. 192.168.8.0/24
Answer: C,D
NEW QUESTION 182
Which of the following levels does the SOA-based network architecture divide the enterprise IT system into? (Choose one or more)
- A. Session layer
- B. Application layer
- C. Network layer
- D. Infrastructure layer
Answer: B,D
NEW QUESTION 183
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,
For the five routes of 192.168.2.0/24, 192.168.3.0/24 and 192.168.4.0/24, RTB is now required to not learn the above routes. What configuration can be performed on RTA?
- A. RTA-ospf-1]asbr-summar192.168.0.0 255.255.224.0 not-advertise
- B. RTB-ospf-1]asbr-summar192.168.0.0 255.255.0.0 not-advertise
- C. RTA-ospf-1]asbr-summar192.168.0.0 255.255.240.0 not-advertise
- D. RTB-ospf-1]asbr-summar192.168.0.0 255.255.248.0 not-advertise
Answer: A,C
NEW QUESTION 184
As shown in the figure, RTA, RTB, and RTC run OSPF, and the process number is 100; OSPF process 200 runs between RTA, RTB, and RTD. The cost of all interconnected links is set to 10. Set the external route priority of OSPF 100 on RTA and RTB to 190, and import an external route 172.16.1.0/24 into OSPF 100 on RTC. RTA is set to redistribute OSPF100 routes to OSPF200, and RTB is set to redistribute OSPF200 routes to OSPF100. After the operation is stable, suppose that the external route 172.16.1.0/24 imported on the RTC disappears suddenly.
Based on the above scenario analysis, the correct description below is ______.
- A. The route 172.16.1.0/24 on RTD still exists, and the next hop points to RTA
- B. The route of 172.16.1.0/24 on RTC disappears
- C. The route of 172.16.1.0/24 on the RTD disappears
- D. The route of 172.16.1.0/24 on RTC still exists, and the next hop points to RTB
Answer: A,D
NEW QUESTION 185
In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD:
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 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. 3.3.3.3/32
- B. 10.0.0.0/24
- C. 2.2.2.2/32
- D. 1.1.1.1/32
Answer: A,B
NEW QUESTION 186
Z router uses the Ethernet MAC address to generate the NET address of the IS-IS process. The disadvantages are ________.
- A. MAC address is not global and inconvenient to manage
- B. MAC address is not necessarily related to network planning, and MAC address is not easy to remember
- C. The length of the MAC address and the Stem-ID in the NET are the same, which is easy to confuse
Answer: A,B
NEW QUESTION 187
In the topology shown in the figure, perform the following configurations on RTA and RTC respectively:
RTA-ospf-1] area 1
RTA-ospf-1-area-0.0.0.1] authentication-mode simple
RTA] interface GigabitEthernet0/0
RTA-GigabitEthernet0/0] ospf authentication-mode simple plain 12345
RTC-ospf-1] area 0
RTC-ospf-1-area-0.0.0.0] authentication-mode simple
RTC] interface GigabitEthernet0/0
RTC-GigabitEthernet0/0] ospf authentication-mode simple plain 54321
If RTB needs to establish neighbor relationships with RTA and RTC respectively, which of the following configurations needs to be performed on RTB?
- A. RTB-ospf-1-area-0.0.0.0] authentication-mode simple RTB] interface GigabitEthernet0/0 RTB-GigabitEthernet0/0] ospf authentication-mode simple plain 12345 RTB] interface GigabitEthernet0/1 RTB-GigabitEthernet0/1] ospf authentication-mode simple plain 54321
- B. RTB-ospf-1-area-0.0.0.0] authentication-mode simple RTB-ospf-1-area-0.0.0.1] authentication-mode simple RTB] interface GigabitEthernet0/0 RTB-GigabitEthernet0/0] ospf authentication-mode simple plain 54321 RTB] interface GigabitEthernet0/1 RTB-GigabitEthernet0/1] ospf authentication-mode simple plain 12345
- C. RTB-ospf-1-area-0.0.0.0] authentication-mode simple RTB-ospf-1-area-0.0.0.1] authentication-mode simple RTB] interface GigabitEthernet0/0 RTB-GigabitEthernet0/0] ospf authentication-mode simple plain 12345 RTB] interface GigabitEthernet0/1 RTB-GigabitEthernet0/1] ospf authentication-mode simple plain 54321
- D. RTB-ospf-1-area-0.0.0.0] authentication-mode md5 RTB-ospf-1-area-0.0.0.1] authentication-mode md5 RTB] interface GigabitEthernet0/0 RTB-GigabitEthernet0/0] ospf authentication-mode simple plain 12345 RTB] interface GigabitEthernet0/1 RTB-GigabitEthernet0/1] ospf authentication-mode simple plain 54321
Answer: C
NEW QUESTION 188
After executing the displaospf routing command on the MSR router RTA, the router output is as follows:
From the above output, you can judge ______.
- A. 192.168.102.1 is the received Tpe2 LSA
- B. 192.168.100.1 is the received Tpe1 LSA
- C. There are 6 OSPF routes in total, including 1 intra-area route, 1 inter-area route, and 4 external routes
- D. The network segment 192.168.2.0 is not in Area0
Answer: C,D
NEW QUESTION 189
The two routers cannot establish OSPF neighbors. The following possible reasons are ________.
- A. The network type of both interfaces is P2P, and the DR election priority has been modified to 0
- B. The Hello time interval of both parties is inconsistent
- C. The authentication passwords configured by both parties are inconsistent
- D. Configure silent-interface so that the adjacent interfaces of both parties do not send protocol packets
Answer: B,C,D
NEW QUESTION 190
As shown in the figure, in the IS-IS network, the RTA configuration commands are as follows, please complete them.
RTA]isis
RTA-isis-1]______
RTA-isis-1]interface serial 2/0
RTA-Serial2/0]isis enable 1
- A. network-entit01.1111.1111.1111.00
- B. area 1
- C. is-level level-1
- D. network 192.168.12.1 0.0.0.0
Answer: A
NEW QUESTION 191
A router has an interface that uses frame relay to connect to multiple routers, and now IS-IS needs to be run between these routers, what needs to be done on this interface?
- A. The IS-IS network type needs to be configured as Broadcast under the interface
- B. Enable IS-IS under the interface
- C. The IS-IS network type needs to be configured as P2P under the interface
- D. Sub-interfaces need to be divided under the interface, each sub-interface corresponds to a neighbor, and IS-IS is enabled on the sub-interface
Answer: D
NEW QUESTION 192
In a certain network project, the client considers that network users may increase substantially in the future, so the network is required to have better scalability.
Which of the following measures can improve the scalability of the network?
- A. Use RIP-1 for routing configuration
- B. Deploy data encryption between the core and remote branches
- C. Use static routing for routing configuration
- D. Use OSPF protocol and plan network layered architecture
Answer: D
NEW QUESTION 193
In the topology shown in the figure, execute the following commands on the RTA router:
RTA-ospf-1] default-route-advertise
RTA] ip route-static 0.0.0.0 0.0.0.0 192.168.0.2
The default route cannot be observed in the routing table of the RTC router. The possible reason is ______
- A. A routing policy is configured on the RTC to filter the default route
- B. Area1 is configured as an NSSA area
- C. RTA's default route next hop address 192.168.0.2 is unreachable
- D. The default route of RTA does not enter the OSPF area through the import command
Answer: A,B,C
NEW QUESTION 194
IS-IS can support network layer protocols such as _______.
- A. Ethernet
- B. CLNP
- C. TCP
- D. IPv4
- E. IPv6
Answer: B,D,E
NEW QUESTION 195
In the network shown in the figure, the adjacency relationship between the routers is established normally, and there is no configured route leakage. Then RTA will forward the IP packet whose destination is 16.224.3.1 to ________.
- A. RTD
- B. RTE
- C. RTB
- D. RTC
Answer: C
NEW QUESTION 196
B In the topology shown in the figure, perform the following configuration in RTA:
RTA-ospf-1-area-0.0.0.1]network 192.168.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.3.0 0.0.0.255
It is required that the RTC must not learn the routes configured in the above RTA. What configurations can be performed on the router?
- A. RTB] acl number 2000 RTB-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255 RTB-ospf-1] filter-polic2000 import
- B. RTB-ospf-1-area-0.0.0.1]abr-summar192.168.0.0 255.255.252.0 not-advertise
- C. RTB] acl number 2000 RTB-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255 RTB-ospf-1-area-0.0.0.1] filter 2000 export
- D. RTC] acl number 2000 RTC-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255 RTC-ospf-1] filter-polic2000 import
Answer: B
NEW QUESTION 197
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