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

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.

多项选择题For which two functions is the Routing Engine responsible?（）

A.packet forwarding
B.queuing functions
C.routing protocol control
D.JUNOS software operation

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

多项选择题Which two statements regarding JUNOS architecture are correct?（）

A.The Routing Engine handles all exception traffic.
B.The Routing Engine synchronizes the route table with the PFE
C.The Routing Engine is hot-pluggable.
D.The Routing Engine controls the PFE