In the IS-IS network as shown in the figure, if the route is stable, the RTB and RTD are changed to 192.168.224.0/24, then the IS-IS topology is ______, and the IP routing information is ______.

• A.change, no change
• B.no change, no change
• C.change, change
• D.no change, change

Comment: *

Name: *

Email: *

Verification: *

In IS-IS, what is the difference between Hello messages on P2P type links and LAN type links?

• A.The sending interval is inconsistent, P2P is 10s, and LAN is 3.3s
• B.The sending method is inconsistent, P2P uses unicast, and LAN uses multicast
• C.LAN IIH is divided into Level-1 and Level-2, while P2P does not distinguish between
• D.The types are inconsistent, use P2P IIH and LAN IIH respectively

Comment: *

Name: *

Email: *

Verification: *

In the system platform of the router, ________ belongs to the control plane, and _______ belongs to the forwarding plane.

• A.The fast announcement belongs to the control plane, and the MAC table belongs to the forwarding plane.
• B.MAC address learning belongs to the control plane, and the protocol routing table belongs to the forwarding plane.
• C.The MAC address learning belongs to the control plane, and the FIB table belongs to the forwarding plane.
• D.The protocol routing table belongs to the control plane, and the fast forwarding table belongs to the forwarding plane.

Comment: *

Name: *

Email: *

Verification: *

Two MSR routers RTA and RTB are connected through the 192.168.1.0/20 network segment. Now execute the following commands on the two routers:
RTA] ospf 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 100
RTB-ospf-100] area 1
RTB-ospf-100-area-0.0.0.1] network 192.168.1.0 0.0.0.255
From the above configuration, you can judge ______.

• A.RTA and RTB cannot establish OSPF neighbor relationship. The OSPF process ID and area ID must be configured to be the same before OSPF neighbor relationship can be established
• B.RTA and RTB can establish OSPF neighbor relationship
• C.RTA and RTB cannot establish OSPF neighbor relationship. If OSPF process numbers are configured to be the same, OSPF neighbor relationship can be established
• D.RTA and RTB cannot establish OSPF neighbor relationship. If the area ID is configured to be the same, OSPF neighbor relationship can be established

Comment: *

Name: *

Email: *

Verification: *

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 default-route-advertise no-summarRTC-ospf-1-area-0.0.0.2]network
30.0.0.0 0.0.0.255
RTC-ospf-1]import-route direct
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's routing table _______.

• A.0.0.0.0/0
• B.3.3.3.3/32
• C.1.1.1.1/32
• D.2.2.2.2/32

Comment: *

Name: *

Email: *

Verification: *