单项选择题

What kind of packets does OSPF send to keep up connectivity with its neighboring routers?（）

A. SPF packets
B. hello packets
C. keepalive packets
D. dead interval packets
E. LSU packets

相关考题

What kind of information does a router running a link-s...

多项选择题What kind of information does a router running a link-state routing protocol need to create and maintain its topological database?（）

A. LSAs from other routers
B. Beacons received on point-to-point links
C. hello packets
D. Routing tables received from neighbors
E. SAP packets sent by other routers
F. TTL packets from exclusive routers

In a point-to point network, which address are OSPF hel...

单项选择题In a point-to point network, which address are OSPF hello packets sent to?（）

A.127.0.0.1
B.192.168.0.5
C.223.0.0.1
D.172.16.0.1
E.224.0.0.5
F.254.255.255.255.255

The Testking router is running both RIP and IGRP, and t...

单项选择题The Testking router is running both RIP and IGRP, and the same route is learned by this router from both of these methods. However, when you issue the command"show ip route" you see only the IGRP route, and not the RIP route. Why is this?（）

A. IGRP has a faster update timer.
B. IGRP has a lower administrative distance.
C. RIP has a higher metric value for that route.
D. The IGRP route has fewer hops.
E. The RIP path has a routing loop.

CCNA(640-801)

What kind of packets does OSPF send to keep up connectivity with its neighboring routers?（）