only summarized routes
all routes in the network
all routes in the backbone
No routes are advertised.
第1题：
A.1
B.10
C.100
D.10^8/link bandwidth
第2题：
A. It is a route to be used when the routing protocol fails.
B. It is a route configured by an ISP that sends traffic into a corporate network.
C. It is a route used when a packet is destined for a remote network that is not listed in the routing table.
D. It is a route manually configured for a specific remote network for which a routing protocol is not configured.
E. It is used to send traffic to a stub network.
第3题：
A. Restrain the formation of adjacencies.
B. Control the flooding scope of link-state PDUs.
C. Partition the L2 backbone into multiple domains.
D. Aggregate L1 domains into a contiguous backbone.
第4题：
A router learns about a remote network from EIGRP, OSPF, and a static route. Assuming all routing protocols are using their default administrative distance, which route will the router use to forward data to the remote network（）。
第5题：
A router learns about a remote network from EIGRP, OSPF, and a static route. Assuming all routing protocols are using their default administrative distance, which route will the router use to forward data to the remote network（）。
A.The router will use the static route.
B.The router will use the OSPF route.
C.The router will use the EIGRP route.
D.The router will load balance and use all three routes.
第6题：
A. BGP updates that travel through the local router and are destined for a remote router.
B. OSPF hello packets that are sent from a remote router and are destined for the local router.
C. Telnet traffic that is sent from a remote host and is destined for the local router.
D. Telnet traffic that travels through the local router and is destined for a remote end host.
第7题：
Refer to the exhibit. Router RT - 1 and router RT - 2 both advertise network 131.25.0.0/16 to routerRT - 3 via internal BGP. What is the reason that router RT - 3 chose router RT - 1 as its best path tonetwork 131.25.0.0/16.（）
A. It has a better router ID
B. It advertises a lower autonomous system
C. It advertises t he best AS - path
D. It advertises the best local preference
E. It advertises the best origin code
F. It advertises the best MED
第8题：
A. only summarized routes
B. all routes in the network
C. all routes in the backbone
D. No routes are advertised.
第9题：
IS-IS路由协议中L1和L2的边界处于路由器内部
第10题：
What does the command ip pim send-rp-discovery scope 16 achieve？（）