Which of the following statements is true?

• a. The GRUB boot loader is stored in the /usr/grub directory.
• b. LILO needs to be reinstalled after it has been modified.
• c. The GRUB2 boot loader is often used on legacy Linux systems.
• d. GRUB needs to be reinstalled after it has been modified.

hich of the following commands can be used to start a UNIX SysV daemon called lala in runlevels 1, 2, and 3?

• a. chkconfig --level 123 lala on
• b. update-rc.d lala defaults
• c. systemctl enable lala 123
• d. service enable lala 123

Which of the following best describes the author's purpose in this passage? A. to entertain B. to persuade C. to describe D. to explain

Which of the following is a characteristic of nonmetals?

Nonmetals do not conduct electricity.

Nonmetals are often shiny and hard.

Nonmetals are often malleable.

Nonmetals are often ductile.

How do you check whether a file already exists? How do you delete a file? How do you rename a file? Can you find the file size (the number of bytes) using the File class? How do you create a directory?

Which of the following commands can be used to start a UNIX SysV daemon called lala in runlevels 1, 2, and 3?

• a. chkconfig --level 123 lala on
• b. update-rc.d lala defaults
• c. systemctl enable lala 123
• d. service enable lala 123

Which of the following statements best describes evolution?

A. Individuals change in response to changes in the environment.

B. The match between individuals and their environment decreases over time.

C. Populations change genetically from one generation to the next.

D. Natural selection favors the most abundant trait.

You wish to configure the runlevels that a particular upstart daemon is started in. What should you do?

• a. Run the appropriate update-rc.d command.
• b. Modify the contents of the /etc/rc[runlevel].d directories.
• c. Modify the daemon configuration file within the /etc/init directory.
• d. Run the appropriate systemctl command.

You have recently modified the options within the /etc/default/grub file. What command can you use next to rebuild the GRUB2 configuration file?

• a. grub2-install
• b. grub-install
• c. grubby
• d. grub2-mkconfig

The timeout value in the GRUB configuration file is measured in?

• a. seconds
• b. 1/10 of minutes
• c. 1/10 of seconds
• d. 1/100 of seconds

Which command causes the system to enter Single User Mode?

• a. init 0
• b. init 1
• c. init 6
• d. initstate 5

The first daemon loaded on a Linux system is ________________.

• a. initstate
• b. inittab
• c. init
• d. linux

Merissa wants to borrow $12,000 to purchase a used boat. After looking at her monthly budget, she realizes that all she can afford to pay per month is$250. The bank is offering a 6.1% loan. What should the length of her loan be so that she can keep within her budget? Round to the nearest year.

In what directory is Stage2 of the GRUB2 boot loader stored?

• a. /boot
• b. /root
• c. /bin
• d. /