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.Management Sciences
Category: Basic of linux unix
Which class network is used for a collection of a small number of networks with a large number of nodes ?
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A. Class A
B. Class B
C. Class C
D. All of the above
In which tcp_wrappers file can you specify to allow all connections from all hosts ?
A. /etc/hosts.allow
B. /etc/hosts.deny
C. /etc/hosts
D. /etc/tcp.conf
What command is used to assign only read permission to all three categories of the file’letter’ ?
A. chmod u + r, g + r, o – x letter
B. chmod ugo = r letter
C. chmod a – rw letter
D. chmod go + r letter
The command chmod 761 letter is equivalent to__________________?
A. chmod 4=7, g = 6, o = 1 letter
B. chmod a = 761 letter
C. chmod u = rwx, g = rw, o = x letter
D. chmod 167 letter
Which of the following command is used to see the services running in NFS server ?
A. rpcinfo
B. serverinfo
C. NFSinfo
D. infserv
Which of the following commands can be used to get information about yourself ?
A. who am i
B. i /4
C. pwd
D. which
Which option will be used with sort command to start sorting ofter the nth column of the (m+l)th field ?
A. -m.n
B. +m.n
C. + n.m+1
D. +(m+l).n
How can you navigate around virtual consoles ?
A. Alt+Function Key
B. Ctrl+Function Key
C. Ctrl+Alt+Del
D. Alt+a+w+Function Key
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