It is possible to configure kernel parameters at runtime (e.g. the maximum size of the shared memory segment (shmmax)). In which TWO ways can this be changed to 2GB (2147483648 Bytes) on a running system?
A. Edit /etc/shmmax and set the parameter to 2147483648.
B. sysctl shmmax=2147483648.
C. sysctl kernel.shmmax=2147483648
D. echo 2147483648 > /proc/sys/kernel/shmmax
E. export kernel.shmmax=2147483648
A Linux machine freezes during boot. To boot directly to a shell prompt so that editing of files and manual starting of services is possible which command line must be passed to the kernel for the boot process?
A. init=/bin/bash
B. 1
C. runlevel=1
D. sh
E. /bin/sh
During which stage of the boot process would this message be seen? ide_setup: hdc=ide-scsi
A. Daemon initialization and setup.
B. Boot loader start and hand off to kernel.
C. Hardware initialization and setup.
D. Kernel loading.
Which command could be used to see the kernel messages created from the boot time until now?
A. initm
B. initmessage
C. initmsg
D. inittab
E. dmesg
You have elected to use the automounter and the autofs script. Your /etc/auto.master file contains the following: /home /etc/auto.home /project /etc/auto.project /datayp:data.map If you change the contents of /etc/auto.project to include a new source path what must be done to access the new path?
A. Shutdown and restart the local NFS client daemons
B. Run fsck on the affected mount point
C. Issue the /etc/init.d/autofs reload command
D. Add the newly mapped path to/etc/fstab
E. Nothing Simply access the newly mapped resource
Whatdoesthefollowingscriptdo?#!/bin/bashfind/-perm+4000|mail-s"Dailyfindoutput"root
A. Emails a report of all guid files to root
B. Emails a report of all important files to root
C. Emails a report of all writeable files to root
D. Emails a report of all suid files to root
E. Corrects permissions on files and emails the result to root
Which command, with options, could be used to change an ext2 file system on /dev/hdal to an ext3 file system?
Your newly-compiled kernel cannot find any modules it needs to load. What command was missed when compiling and installing the kernel?
What is the correct parameter to pass to the kernel at boot time to force it to use only one of the available processors?
You wish to notify all users that you have to take down a service on which they rely. What command will allow you to send a message to all currently logged on users? Enter only the command, not the path.
