6-3 Operating Systems 2

What component do I/O (input/output) devices connect to?

• The Driver

• Central Processing Unit

• Motherboard

• RAM

Answer explanation

I/O devices connect to the Motherboard, which acts as the main circuit board connecting all components in a computer system.

What is a buffer?

Choose two statements that apply.

• An interrupt in normal CPU processing.

• An area of main memory reserved by the OS.

• A period of processing time used to handle input.

• 
  It holds data passed to it from the CPU until the I/O device is ready.

• A lag in downloading a file.

Answer explanation

A buffer is an area of main memory reserved by the OS and holds data passed to it from the CPU until the I/O device is ready. These two statements accurately describe the concept of a buffer.

What is a device driver?

Select two statements that apply.

• It is small software a program that is specific to each device.

• It is an external hardware device.

• 
  It allows the operating system to communicate with a device.

• A printer device driver will work for all types of printers.

• You should never upgrade a device driver.

Answer explanation

A device driver is small software specific to each device, allowing the OS to communicate with it. It is not an external hardware device, and upgrading drivers can be necessary.

Which of the following are examples of operating system user management?

Choose two options.

• Allocating user profile accounts to users.

• Searching for files located on a storage device.

• Installing drivers so you can connect peripherals.

• Providing a user interface so you can interact with the computer.

• Managing the access rights of user profiles.

Answer explanation

Correct examples of operating system user management include allocating user profile accounts to users and managing the access rights of user profiles.

Which of the following is a common security feature in operating system user management?

• • 
    Usernames

• • Renaming files

• • Passwords

• • Drivers

Answer explanation

Passwords are a common security feature in operating system user management to authenticate and secure user accounts.

What does API stand for?

• Apple Programming Interface

• Application Programming Interface

• Application Procedure Interface

• Application Programming IOS

Answer explanation

API stands for Application Programming Interface, which is the correct choice among the given options.