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Linux

Linux
What command is used to add printing jobs to the queue?

None of these
lpd
lpr
lpc
lpq

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Linux
What port does squid listen, by default?

4322
3128
7334
None of these
2314

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Linux
What command is used to halt a Linux system?

init 0
Shutdown -g -y0
Ctrl+Alt+Del
Shutdown -t

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

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Linux
In OSI network architecture, the routing is performed by

data link layer
session layer
None of these
transport layer
network layer

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Linux
Which of the following is a valid format for mounting a CD-ROM drive?

None of these
All of these
mount /mnt/cdrom
mount /dev/cdrom
mount -t iso9660 /dev/cdrom / mnt/cdrom

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