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

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单项选择题

When a non-root user connects to a JUNOS platform and enters a username and password, the user is immediately placed at which level?（）

A.UNIX shell
B.user level CLI
C.configuration mode
D.operational mode

单项选择题

Which statement is true about the internal link between the Routing Engine and the Packet-Forwarding Engine?（）

A.It is only used for exception traffic.
B.It is an FE link called fxp2.
C.It is rate-limited to avoid DDOS attacks.
D.It is only used to send the forwarding-table from the Routing Engine to the Packet-Forwarding Engine.

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 furtherprocessing.
D.The PFE queues the packet and sends are quest for a layer3 lookup to the routing engine.