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How does the ERX Edge Router interact with subscriber IP addresses assigned by an externa lDHCP 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 ad

题目

How does the ERX Edge Router interact with subscriber IP addresses assigned by an externa lDHCP 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 keepalives to the subscriber and makes the address available when the subscriber stops responding.
  • D、It sends keepalives 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：

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2题：

The ERX Edge Router in your Bridged 1483 network has multiple external DHCP servers configured.During discovery, which algorithm does the router use to decide which DHCP server to send packets to?()

A. direct mode

B. round robin

C. weighted round robin

D. No algorithm is used.


参考答案：D

第3题：

The ERX Edge Router is configured for PPP over Ethernet without using VLAN tagging. How many PPP over Ethernet major interfaces can be configured per port?()

A.1

B.100

C.2048

D.4096


参考答案：A

第4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5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6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7题：

What are the three OSPF authentication methods supported on the ERX Edge Router?()

A.A

B.B

C.C

D.D

E.E


参考答案：A, B, C

第8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9题：

Which command is used on the local router to invoke a loopback mode on a remote ERX Edge Router?()

A.A

B.B

C.C

D.D


参考答案：B

第10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

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