Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）A、The ERX router sends an Active Discovery Off ermessage.B、The ERX router sendsan Active Discovery Initiation message.C、The customer device sends an Acti

题目

Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）

A、The ERX router sends an Active Discovery Off ermessage.
B、The ERX router sendsan Active Discovery Initiation message.
C、The customer device sends an Active Discovery Offer message.
D、The customer device sends an Active Discovery Initiation message.

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第1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2题：

The ERX Edge Router responds toa received PPP over Ethernet Active Discovery Initiation(PADI) with which message type?()

A.PPPoE Active Discovery Offer

B.PPPoE Active Discovery Initiation

C.PPPoE Active Session Confirmation

D.PPPoE Active Session Acknowledgment

参考答案：A

第3题：

What are the two stages of PPP over Ethernet?()

A.PPP Session stage

B.PPPoE Search Stage

C.PPPoE Discovery Stage

D.PPP Confirmation stage

参考答案：A, C

第4题：

The ERX Edge Router responds to a received PPP over Ethernet Active Discovery Initiation （PADI） with which message type？（）

A、PPPoE Active Discovery Offer
B、PPPoE Active Discovery Initiation
C、PPPoE Active Session Confirmation
D、PPPoE Active Session Acknowledgment

正确答案:A

第5题：

For a router to obtain a certificate from a CA， what is the first stepof the certificate enrollment process？（）

A、 the router generates a certificate request and forwards it tothe CA
B、 the router generates an RSA key pair
C、 the router sends its public key to the CA
D、 the CA sends its public key to the router
E、 the CA verifies the identity of the router
F、 the CA generates a certificate request and forwards it to the router

正确答案:B

第6题：

A user is connected on a DSL line and is using a PPP over Ethernet service.Which network device strips the ATM header from the datagram and investigates the PPP header?()

A.DSLAM

B.DSL modem

C.ERX Edge Router

D.customer workstation

参考答案：C

第7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8题：

The PPP over Ethernet Discovery Stage determines which two parameters? ()(Choose two.)

A. session ID

B. authentication server

C. IP address of the client

D. MAC address of the ERX router

参考答案：A, D

第9题：

In PIM-SM operations， the first router connected to the multicast source sends the Register message towhich device？（）

A、Multicast source
B、Multicast receiver
C、RP
D、RP mapping agent
E、Designated Router （DR）

正确答案:C

第10题：

You have a Bridged 1483 service offering where each ATM PVC is assigned a /30 subnet. What are two characteristics of this configuration？（）

A、It burns IP addresses.
B、It conserves IP addresses.
C、Both the client and the ERX Edge Router have IP addresses.
D、The client has an IP address， but the ERX Edge Router uses an unnumbered address.

正确答案:A,C

Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）A、The ERX router sends an Active Discovery Off ermessage.B、The ERX router sendsan Active Discovery Initiation message.C、The customer device sends an Acti

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