题目内容
（请给出正确答案）
[单选题]
下面是关于目前流行的台式PC机主板的叙述： Ⅰ．主板上通常包含微处理器插座(或插槽)和芯片组 Ⅱ．主板上通常包含ROMBIOS和存储器(内存条)插座 Ⅲ．主板上通常包含PCI总线插槽和AGP插槽 Ⅳ，主板上通常包含串口连接器和井口连接器 其中，正确的是
A.仅Ⅰ
B.仅Ⅰ和Ⅱ
C.仅Ⅰ、Ⅱ和Ⅲ
D.Ⅰ、Ⅱ、Ⅲ和Ⅳ
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A．IKE
B．PAP
C．CHAP
D．MSCHAP
更多“下面是关于目前流行的台式PC机主板的叙述：Ⅰ．主板上通常包含…”相关的问题
第1题
In a PPP over ATM environment,which two PPP authentication methods are supported by the ERX Edge Router？（）
第3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
第4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
第6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
第7题
When multiple PPP over Ethernet subscribers connect using the same DSL modem, which two attributes does the ERX use to differentiate between subscribers？ （）（Choose two.)
A. PPP session ID
B. subscriber name
C. source MAC address
D. destination MAC address
第8题
What is the default Quality of Service traffic class used by the ERX Edge Router？（）
A. bronze forwarding
B. assured forwarding
C. expedited forwarding
D. best effort forwarding
第9题
End users are failing to log in to the network.Which command is used on the ERX Edge Router to validate communications with the RADIUS server？（）
A. test ppp aaa
B. test aaa ppp
C. test radius user
D. test user radius
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