By default, which PPP mechanism does the ERX Edge Router use to monitor the session for a PPP over ATM client?（）A、pingB、helloC、get requestD、echo request

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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

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第1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2题：

When configuring a serial interface on a router, what is the default encapsulation?()

A. atm-dxi

B. frame-relay

C. hdlc

D. lapb

E. ppp

参考答案：C

第3题：

A subject_____is the mechanism of that equipment.

A、which there continues to be intense debate

B、what continues to be intense debate

C、which continues to be intense debate

D、on which it continues to be intense debate

参考答案：A

第4题：

In PPPoA architecture， which two methods are most commonly deployed？（）

A、terminating PPP sessions at the service provider
B、PPP framing
C、PPP multiplexing
D、GRE tunneling
E、L2TP tunneling

正确答案:A,E

第5题：

Which two statements about queuing mechanisms are true？（）

A、FIFO queuing is only appropriate for slower serial interfaces
B、weighted fair queuing is the default queuing mechanism used for all but slower than E1 rate interfaces
C、only one queuing mechanism type can be applied to an interface
D、weighted fair queuing does not require the configuration of access lists to classify traffic
E、flow-based weighted fair queuing provides for queues to be serviced in a round-robin fashion

正确答案:C,D

第6题：

In a PPP over ATM environment,which two PPP authentication methods are supported by the ERX Edge Router?()

A.IKE

B.PAP

C.CHAP

D.MSCHAP

参考答案：B, C

第7题：

Which two statements about using the CHAP authentication mechanism in a PPP link are true?()

A.CHAP uses a two-way handshake

B.CHAP authentication periodically occurs after link establishment

C.CHAP has no protection from playback attacks

D.CHAP authentication is performed only upon link establishment

E.CHAP uses a three-way handshake

F.CHAP authentication passwords are sent in plaintext

参考答案：B, E

第8题：

When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?()

A. profile

B. domain map

C. DHCP server

D. RADIUS server

参考答案：B

第9题：

Which of the following protocols utilize UDP as the layer 4 transport mechanism?（）

A、TACACS
B、Telnet
C、SMTP
D、SNMP
E、HTTP
F、TFTP

正确答案:D,F

第10题：

When configuring a serial interface on a router, what is the default encapsulation?（）

A、atm-dxi
B、frame-relay
C、hdlc
D、lapb
E、ppp

正确答案:C

By default, which PPP mechanism

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