Which three CLI modes are available on the ERX Edge Router？（）

单项选择题What does the SRP distribute to the line modules when a routing table changes？（）

A.updated RIB-Out
B.link-state information
C.an incremental update
D.the complete routing table

单项选择题Which type of cable is required to access the router’s console port from a PC？（）

A.modem
B.Ethernet
C.nullmodem
D.straight-through

单项选择题When using a 40 Gbps switch fabric,how much full duplex bandwidth is available to each slot?（）

A.1.25Gbps
B.1.65Gbps
C.2.55Gbps
D.5.00Gbps

单项选择题Which configuration command builds a read-write SNMP community named operator?（）

A.Snmp-server community operator.
B.Snmp-server operator community.
C.Snmp-server community operator rw.
D.Snmp-server operator community rw

单项选择题The policy action of color is used for congestion control under which circumstance?（）

A.congestion in an upstream router
B.congestion in a downstream router
C.contention for queue space on an egress interface
D.contention for queue space on an ingress interface