Linux certification sample question paper with answer set 5

Linux certification sample question paper with answer set 5

  • In the main configuration file of ftp server the directive userlist_enable=NO is used. Which users are allowed to login into ftp?
    • All users
    • no users
    • users in file /etc/vsftpd/user_list
    • users not in file /etc/vsftpd/user_list

    Answer — users in file /etc/vsftpd/user_list

  • Before using a schema to create ldap directory information what a user should do?
    • Add the schema in /etc/openldap/ldap.conf
    • nothing is to be done
    • add schema in /etc/openldap/openldap.conf
    • make the schema file

    Answer — Add the schema in /etc/openldap/ldap.conf

  • Which is the main configuration file for NIS server?
    • /etc/nis.conf
    • /etc/nis/yp.conf
    • /etc/yp/yp.conf
    • /etc/yp.conf

    Answer — /etc/yp.conf

  • Which command is used to enable the dhcp server?
    • chkconfig on
    • chkconfig start
    • chkconfig enable
    • server on

    Answer — chkconfig on

  • How can you get the hostname of your system from ip address?
    • host
    • hostname
    • gethost
    • none of these

    Answer — host ipaddress

  • Which file does contain the directory and file permission set by postfix?
    • /etc/postfix/postfix-files
    • /etc/postfix/postfix-file
    • /etc/postfix/permit-files
    • /etc/postfix/permit-file

    Answer — /etc/postfix/postfix-files

  • There are three clients A,B,and C. Administrator wants to allow A and B for xinetd services(with tcp wrappers).The client a is listed in file /etc/hosts.allow and c in /etc/hosts.deny.Is the configuration right?
    • No
    • Yes

    Answer — Yes

  • What is SIGKILL?
    • It is a signal used with kill command generally
    • It is not a command
    • none of them
    • both of them

    Answer — It is a signal used with kill command generally

  • May a process have pid of 0?
    • No process can not have pid of 0
    • Yes init process have pid of 0
    • Boot process have pid of 0
    • A process pid can be set to 0 using renice command

    Answer — No process can not have pid of 0

  • A user issues a command kill 0.What will be the impact of the command?
    • All process with pid >0 are re signaled.
    • Gives an error
    • Process with pid 0 is re signaled
    • all processes in current process are signaled.

    Answer — all processes in current process are signaled.

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