Exam #1

Which commands below are useful to collect data about remote filesystem connections? (Choose TWO correct answers.)

• pidstat

• nfsiostat

• sadf

• cifsiostat

What mechanism does collectd use to gather monitoring information on systems?

• It uses a library of plugins.

• A master server connects to a collectd service on each machine to retrieve the information.

• It collects its own information on each server and sends that to a master server.

• It makes SNMP queries to the clients being monitored.

When planning a web server which of the following choices will impact system sizing? (Choose THREE correct answers.)

• How many concurrent users are expected.

• Which hardware vendor has better Linux support.

• What type of content will be served.

• What scripting languages will the web server support.

• Will the OS install be CD, DVD or network based.

In the following output, what is the last 5 minutes load average for the system?

12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31

• 0.47

• 24.71

• 35.31

• There is no 5 minute interval

Which command is used to unload a single module currently loaded by the kernel without unloading any modules that it depends upon? (Specify the command

with or without path information)

According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code?

(Please specify the full path with no version information.)

After configuring a new kernel, what file under /usr/src/linux/ contains the configuration?

Which of the following terms are used to describe 3.x kernel releases? (Choose TWO correct answers.)

• beta

• final

• longterm

• prerelease

• stable

What happens if the Linux kernel can't mount the root filesystem when booting?

• An error message is shown and the administrator is asked by the kernel to specify a valid root filesystem to continue the boot process.

• An error message is shown and the system reboots after a keypress.

• An error message is shown and the system boots in maintenance mode.

• An error message is shown showing which device couldn't be mounted or informing that init couldn't be found.

• An error message is shown stating that the corresponding kernel module couldn't be loaded.

Where is the LILO boot loader code typically installed on a system with only a single Linux installation and no other operating systems?

• In the master boot record.

• In the boot sector.

• In the /boot directory.

• At the start of the kernel.