The command to cancel the automatic route aggregation of RIP protocol on the MSR router is ___________.

• A.[Router-rip-1]undo summary
• B.[Router-rip-1] undo auto-summary
• C.[Router-Serial1/0] undo auto-summary
• D.[Router-Serial1/0] undo summary

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In the IS-IS network shown in the figure, each router is configured as follows.
RTA-isis-1] cost-ste wide
RTB-isis-1] cost-ste wide-compatible
RTC-isis-1]cost-ste narrow-compatible
Then it is ________ that can correctly calculate the link cost between each other.

• A.RTA and RTC
• B.RTA and RTB
• C.RTB and RTC
• D.None

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Regarding the comparison between OSPF protocol and RIPv2 protocol, the following statement is correct is _______.

• A.Both protocols support routing information triggered updates
• B.OSPF protocol supports authentication, while RIPv2 protocol does not
• C.Both protocols use a poison reversal mechanism to prevent routing loops
• D.RIPv2 uses hops as routing metric, while OSPF uses cost as routing metric

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RTA and RTB run OSPF routing protocol, and both belong to the backbone area.
Which of the following methods cannot be used to advertise the RTA direct route 192.168.1.0/24 to the OSPF routing domain?

• A.RTA-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255
• B.RTA]ip route-static 192.168.1.0 24 null0 RTA-ospf-1]import-route static
• C.RTA-ospf-1]import-route direct
• D.RTA-ospf-1]import-route static

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In the following NSAP, the NET address that can be used as an integrated IS-IS is _______.

• A.20.AAAA.BBBB.CCCC.00
• B.10.101.202.303.00
• C.1000.2000.3000.00
• D.10.2222.3333.4444.01

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