A local area network has been running for 1 year (8,760 hours) and has been shut down for 8 hours due to equipment failure. Later, after the network was expanded and new equipment was added, it ran for another year, and was stopped for another 3 hours due to software failure.
Which of the following statements is true about the availability of this network (Avalabilit)?

• A.Availability after network expansion is better than before expansion
• B.Availability after network expansion is worse than before expansion
• C.The availability of the network is 99.96% since its inception
• D.Before expansion, network availability was 99.91%

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There is an entry of 192.168.1.0/27 in the IP routing table of the router. To import it into BGP, which of the following commands should be used?

• A.network 192.168.1.0 255.255.255.224
• B.network 192.168.1.0 mask 0.0.0.31
• C.network 192.168.1.0 mask 255.255.255.224
• D.network 192.168.1.0 0.0.0.31

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The command to configure a silent interface on a router so that the router does not send OSPF protocol packets is _______.

• A.RTA-ospf-1]silent-interface serial2/0
• B.RTA-ospf]silent-interface serial2/0
• C.RTA-ospf-1-area-0.0.0.1]silent-interface serial2/0
• D.RTA-Serial2/0]silent-interface

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Which of the following statements is true about filter-polic filtering OSPF routes?

• A.OSPF routing information can be filtered by the next hop based on the routing information to be added to the routing table
• B.Routing information can be filtered by interface
• C.OSPF routes can be filtered by IP address prefix list
• D.OSPF routes can be filtered by configuring ACL

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In the topology shown in the figure, the following configurations are performed on RTA, RTB, and RTC:
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
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
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
RTC-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
How to configure if RTD can learn route 10.0.0.0/24?

• A.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
• B.RTD]ospf 1 RTD-ospf-1]area 2 RTD-ospf-1-area-0.0.0.2]network 20.0.0.0 0.0.0.255 RTD-ospf-1-area-0.0.0.2]stub
• C.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]stub
• D.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]area 0 RTD-ospf-1-area-0.0.0.0]stub

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