Information Technology Reference
In-Depth Information
IS-IS routers use which IP protocol or port?
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a. IP protocol 89.
b. TCP port 89.
c. UDP port 89.
d. IS-IS uses the data-link layer.
What are OSPF Type 3 LSAs?
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a. Router LSAs with interface state information produced by all routers
b. ASBR summary LSAs produced by ABRs
c. Summary LSAs produced by ABRs
d. External LSAs produced by ABRs
The following router output is produced by which command?
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Neighbor ID Pri State Dead Time Address Interface
112.20.150.6 1 FULL/DR 00:00:33 112.20.150.111 Ethernet0
112.20.150.7 1 FULL/ - 00:00:34 112.20.150.236 Serial0.1
a.
show clns is-neighbors
b.
show ip eigrp neighbors
c.
show ip ospf neighbors
d.
show isis neighbors
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What happens if an L1/L2 router can reach a destination through two different paths: one
an L1 path, the other an L2 path?
a. If the L1 and L2 path costs are equal, both routes are added to the routing table and
load balancing occurs.
b. The path with the lowest cost is used.
c. The L2 path is always used, regardless of the path costs.
d. The L1 path is always used, regardless of the path costs.
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What does O E2 mean in the following router output?
O E2 1.0.0.0/8 [110/1000] via 1.1.1.1, 00:00:01, Ethernet0
a. The route is an OSPF internal Type 2 route.
b. The route has a metric of 110.
c. The route is an OSPF external Type 2 route.
d. The route is an OSPF interarea route.
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