What will a router do during startup if a configuration file is not located in NVRAM?（）

单项选择题A router leams 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 route will use the EIGRP route.
D. The router will load balance and use all three routes.

单项选择题One type of frame switching uses low-latency forwarding and then switches to a higher-latency error checking mode when an error threshold is exceeded. What is the name of this frame switching mode?（）

A. store and forward
B. fragment-free
C. adaptive cut-through
D. fast-forward

单项选择题What is the advantage of using a multipoint interface instead of point-to-point subinterfaces when configuring a Frame Relay hub in a hub-and-spoke topology?（）

A. it avoids split-horizon issues with distance vector routing protocols.
B. IP addresses can be conserved if VLSM is not being used for subnetting.
C. A multipoint interface offers greater security compared to point-to-point subinterface configurations.
D. The multiple IP network addresses required for a multipoint interface provide greater addressing flexibility over point-to-point configurations.

多项选择题What are the possible trunking modes for a switch port?（）

A.transparent
B.auto
C.on
D.desirable
E.client
F.forwarding

多项选择题Which of the following are types of flow control?（）

A.buffering
B.cut-through
C.windowing
D.congestion avoidance
E.loadbalancing