Chapter 5

Question 1

What is the threshold amount of physical memory, above which allocating swap space is no longer recommended?

Answer 1

A swap partition should always be created, no matter how much physical memory is available.

Question 2

Which of the following files lists currently active swap partitions?

Answer 2

/proc/swaps

Question 3

Which file is used to define swap partitions which should be activated automatically as the system boots?

Answer 3

/etc/fstab

Question 4

What command line would be used to initialize a disk partition to be used as swap space?

Answer 4

mkswap /dev/sda3

Question 5

What command line would be used to initialize a file to be used as swap space?

Answer 5

mkswap /tmp/swapfile

Question 6

ext3 is to mount as swap is to ….

Answer 6

swapon

Question 7

Which of the following lines could be used to define a swap area that should be activated at system startup in the /etc/fstab file?

Answer 7

/dev/sda4 swap swap defaults 0 0

Question 8

Which of the following commands is used to deactivate a swap area?

Answer 8

swapoff

Question 9

Which of the following command lines could be used to activate a swap partition with a priority of 3?

Answer 9

swapon -p 3 /dev/sda3

Question 10

Which of the following commands could confirm that a swap partition is active with a priority of 3?

Answer 10

cat /proc/swaps