CMS专题

单选题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

题目
单选题
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.

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相似问题和答案

第1题：

How many traffic classes are supported on the ERX Edge Router?()

A.1

B.2

C.4

D.8


参考答案：D

第2题：

By default, which PPP mechanism does the ERX Edge Router use to monitor the session for a PPP over ATM client?()

A. ping

B. hello

C. get request

D. echo request


参考答案：D

第3题：

Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?()

A. ip sa-validate

B. ip split-horizon

C. ip access-routes

D. ip filter-options


参考答案：A

第4题：

Which service does the ERX Edge Router support with a virtual router?()

A.voice over IP

B.wholesale services

C.IP quality of service

D.SNMP management


参考答案：B

第5题：

Which command prompts an ERX Edge Router to go into a loopback mode on T1 number 1 when a command is received from a remote ERX Edge Router?()

A.A

B.B

C.C

D.D


参考答案：A

第6题：

Beginning with software version 4－0－0.rel,how many virtual routers canbe configured on the ERX Edge Router?()

A.32

B.128

C.256

D.1000


参考答案：D

第7题：

By default, how often does an ERX Edge Router send an OSPF link－state advertisement in a stable network?()

A.A

B.B

C.C

D.D


参考答案：D

第8题：

When sending an LCP Configuration Request, what can the ERX Edge Router possibly negotiate?()

A.IP address

B.authentication

C.WINS assignment

D.Domain Name Server


参考答案：B

第9题：

How does the ERX Edge Router interact with an external DHCP server in a Bridged 1483 network?()

A.It maintains DHCP leases on behalf of subscribers.

B.It initiates DHCP requests on behalf of subscribers.

C.It passes DHCP traffic to and from the server;you must configure static host routes.

D.It passes DHCP traffic to and from the server and inserts host routes into its routing table.


参考答案：D

第10题：

In a PPP over ATM service offering, what is a valid method for assigning an address to the ERX Edge Router?（）

  • A、DHCP assigned addresses
  • B、RADIUS assigned addresses
  • C、IP numbered with a loopback reference
  • D、IP unnumbered with a loopback reference

正确答案:D

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