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Linux

Linux
What command is used to display the characteristics of a process?

ps
du
au
pid

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Linux
What layer of OSI determines the interface of the system with the user?

Network
Application
None of these
Session
Data-link

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Linux
Which class network is used for a collection of a small number of networks with a large number of nodes?

Class B
None of these
All of these
Class C
Class A

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Linux
How many primary partitions can exist on one drive?

2
None of these
4
1
16

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Linux
Which program is used to schedule particular jobs or programs at particular times on the system?

vi
Scheduler
Outlook
None of these
cron

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Linux
What command is used to assign only read permission to all three categories of the file'letter'?

chmod a - rw letter
chmod go + r letter
chmod ugo = r letter
chmod u + r, g + r, o - x letter

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