单项选择题

A.It monitors messages from the external server and upd……

How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCP server?（）

A.It monitors messages from the external server and updates the routing table as needed.
B.It maintains the leases for the DHCP server and reassigns addresses to new subscribers.
C.It sends keep alives to the subscriber and makes the address available when the subscriber stops responding.
D.It sends keep alives to the subscriber and removes the host route when the subscriber stops responding.

<上一题目录下一题>

热门试题

单项选择题Which configuration command allows the ERX Edge Router to advertise customer networks into the provider’s IGP？（）

A.redistribute direct
B.redistribute static
C.redistribute connected
D.redistribute access-internal

多项选择题Which two B-RAS service offerings maintain the analog dial-up model with centralized user authentication，authorization，andaccounting？（）

A.Routed1483
B.Bridged1483
C.PPPoverATM
D.PPPoverEthernet

单项选择题You would like to configure an ATM PVC with a virtual circuit identifier of 33 on virtual path 0.The PVC should use an unspecified bit rate and be encapsulated in the AAL5SNAP format.Which command accomplishes this goal？（）

A.atm pvc0/33 aal5snap
B.atm pvc33033 aal5snap
C.atm pvc0/33 aal5snap ubr
D.atm pvc33033 aal5snap ubr

单项选择题What is the maximum attainable bandwidth using an analog data modem？（）

A.28.8kbps
B.56kbps
C.128kbps
D.1544kbps

多项选择题Which two factors affect the speed of your DSL connection?（）

A.line quality
B.distance from the CO
C.brand of xDSL modem
D.number of twisted-pair wires used