What is a valid option when using the ...

单项选择题What is a valid option when using the ping command?（）

A. packet loss
B. packet size
C. CRC
D. TCP port

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1.单项选择题Which command do you use to show active alarms?（）

A. show hardware state
B. show system alarms
C. show chassis state
D. show services alarms

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2.单项选择题Which command do you use to display the messages seen during the last system boot?（）

A. show system boot-messages
B. show chassis messages
C. show file system boot-messages
D. show boot-log messages

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3.单项选择题Which command displays the amount of space available on the storage media?（）

A. show chassis routing-engine
B. show system file-storage
C. file list
D. show system storage

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4.单项选择题Which operational command would you use to quickly verify the state of all interfaces?（）

A. show interfaces terse
B. show interfaces
C. show configuration interfaces
D. show interface status

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5.单项选择题Your network administrator has asked you to view the real-time interface usage on ge-0/0/0. Which command would be used?（）

A. monitor interface ge-0/0/0
B. traceoptions interface ge-0/0/0
C. debug interface ge-0/0/0
D. monitor usage ge-0/0/0

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6.单项选择题A network administrator wants to verify the active alarms on interface so-0/0/0.0. Which command displays this information?（）

A. show interfaces alarms
B. show interfaces terse
C. show alarms extensive
D. show interfaces extensive

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7.单项选择题Which command will allow you to quickly determine the administrative status of all interfaces on a Junos device?（）

A. show interfaces status
B. show interfaces summary
C. show interfaces terse
D. show interfaces admin

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8.单项选择题When using the monitor traffic command on Junos devices, which UNIX-based utility is accessed?（）

A. snoop
B. tcpdump
C. monitor
D. tail

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9.单项选择题A network administrator would like to view detailed interface status, properties, statistics, errors,and CoS packet counters.Which operational command will display this information?（）

A. show interfaces extensive
B. show interfaces
C. show configuration interfaces
D. show interface status

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10.单项选择题Which statement is true regarding the Network Time Protocol (NTP) on Junos devices?（）

A. MD5 authentication is supported by the Junos OS
B. Server mode is not supported by the Junos OS
C. The Junos OS can provide a primary time reference
D. The Junos OS does not support the use of a boot server

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