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举一反三
【多选题】Which of the following is true about routers internal to a totally NSSA area?（）
A.
Routers cannot redistribute external routes into the area.
B.
Routers should have zero Type 3 LSAs in their LSDBs.
C.
Routers should have zero Type 5 LSAs in their LSDBs.
D.
Routers should learn default routes from the ABRs attached to the area.
【单选题】Study the exhibit carefully. Routers A and B are customer routers. Routers 1， 2， 3 and 4 are provider routers. The routers areoperating with various IOS versions. Which frame mode MPLS configuration s...
A.
Before MPLS is enabled， the ip cef command is only requited on routers 1 and 4
B.
After MPLS is enabled， the ip cef command is only required on routers 1 and 4
C.
Before MPLS is enabled， the ip cef command is only required on the Ethernet 0 inteces ofrouters 1 and 4
D.
After MPLS is enabled， the ip cef command is only required on the Ethernet 0 inteces ofrouters 1 and 4
E.
Before MPLS is enabled， the ip cef command must be applied to all provider routers
【单选题】He told me the news_____, believe it or not, he had earned $1 000 in a single day.
A.
that
B.
which
C.
as
D.
because
【单选题】— That's _____ he told me the other day. — Thank you for telling me the truth. [ ]
A.
that
B.
which
C.
when
D.
what
【单选题】Which of the following is generally not true about routers?
A.
Routers check the central internet-map which shows routes for all packets.
B.
Routers get packets from computer, and forward them on.
C.
Routers continuously monitor the status of their connections.
D.
Routers forward each packet one hop closer to its final destination.
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