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全部科目 > 软件认证工程师考试 > 思科认证考试 > CCNA系列认证 > CCNA(640-802)

单项选择题

Which command shows your active Telnet connections?（）

A. show session
B. show cdp neighbors
C. show users
D. show queue

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单项选择题

Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?（）

A. transport type all
B. transport output all
C. transport preferred all
D. transport input all

单项选择题

What is the OSPF default frequency,in seconds,at which a cisco router sends hello packets on a multi-access network?（）

A. 10
B. 40
C. 30
D. 20

单项选择题

Which dose the frame-relay interface-dlci command configure?（）

A. remote DLCI on the main interface
B. local DLCI on the main interface
C. local DLCI on the subinterface
D. remote DLCI on the subinterface

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