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Linux

Linux
How many class A, B and C network IDs can exist?

128
2,113,658
126
16,382

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Linux
What command is used to set user and group quotas?

/sbin/usrquota
/sbin/quota
/sbin/quotaon
/sbin/edquota

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Linux
How many networks and nodes per network, are allowed by the Class B network?

None of these
All of these
127 networks and 16,777,216 nodes per network
2,097,152 networks and 254 nodes per network
16,384 networks and 65,534 nodes per network

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Linux
What command can be used to get information about yourself?

which
who am i
pwd
None of the listed here

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Linux
What command is used to assign executable permission to all of the files named "report"?

None of the listed here
chmod ugo + x report
chmod ugo + rw report
chmod u + x report

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

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

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