单项选择题

What is the interface connecting the routing engine to the packet forwarding engine called？（）

A.Loopback 0
B.management
C.internal（fxp1）
D.control interface

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单项选择题

On a Juniper Router， where is the JUNOS software located？（）

A.EPROM
B.Zip drive
C.hard drive
D.compact flash

单项选择题

If the PFE does not have a route to the destination address of a packet， which action will be taken？（）

A.The PFE floods the packet out of all interfaces.
B.The PFE drops the packet and sends a destination unreachable notification back to source device.
C.The PFE forwards the packet to the routing engine for further processing.
D.The PFE queues the packet and sends a request for a layer 3 lookup to the routing engine.

单项选择题

In which mode are users allowed to configure the device， including interfaces， protocols， user access， and system hardware properties？（）

A.priviledged mode
B.configuration mode
C.monitoring mode
D.operational mode