Which of the following tools are route filters?

• A.route-polic
• B.filter-polic
• C.ACL
• D.Address mask

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In the OSPF broadcast network, there are 4 routers RTA, RTB, RTC, and RTD in the same network segment, and their priorities are 2, 0, 1, and 1, respectively. The router IDs are 192.168.1.1, 192.168.2.1, 192.168.3.1 and 192.168.4.1.
If the OSPF protocol is activated on these 4 routers at the same time, the BDR selected by OSPF is _____.

• A.RTB
• B.RTD
• C.RTC
• D.RTA

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After executing the displaospf lsdb command on the MSR router RTA, the router output is as follows:

From the above output, you can judge _______.

• A.This is an ASBR
• B.There are two Tpe5 LSAs in the LSDB
• C.There are two Tpe7 LSAs in the LSDB
• D.This is an ABR

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Run the command and display information on the router as follows:
<RTA>displaisis peer
Peer information for ISIS (1)
----------------------------
Stem Id: 2222.2222.2222
Interface: Tun2 Circuit Id:
State: Up HoldTime: 27s Tpe: L1 PRI: -
Stem Id: 3333.3333.3333
Interface: Tun3 Circuit Id:
State: Up HoldTime: 25s Tpe: L2 PRI: -
From the above information, you can know RTA______.

• A.The ports connected to the two neighbors are not of LAN type
• B.It is the DIS of two neighbors
• C.Is a Level-2 router
• D.It is a Level-1-2 router

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The administrator wants to configure the RIP routing priority value on the MSR router to be 60. Which of the following commands is correct?

• A.Router-rip-1]rip preference 60
• B.Router]preference 60
• C.Router-rip-1]preference 60
• D.Router]rip preference 60

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