A level computer science

What are the 2 parts of a computer instruction?

• Op-code and operator

• Op-code and Opstate

• Opcode and Operand

• Opcommand and Opmemory

Black box testing means...

• The tester is familiar with the code and is checking that all routes through the code work correctly

• The tester is focused on the functionality of the code

• The software is nearly ready for release

• The maximum load on the system is being checked.

What is the kernel of the operating system?

• The parts of the OS that interact with peripherals

• Central components of the operating system

• The part of the OS that are not loaded into memory

• The start-up instructions for the computer

What is a multitasking computer?

• Multiple users can be logged in at the same time

• A CPU core that can run more than one process at a time

• Multiple programs can be running at the same time

• A computer that can handle multiple input devices.

A signal sent by a hardware or software to the CPU indicating that something needs attention is...

• a system call

• interrupt

• paging

• blocking

Process management....

• allocates time for processes to use the CPU

• is responsible for creating, deleting, renaming of files and folders

• stores programs and data that are presently being used by the CPU

• is the method by which the user interacts with the computer system

During your systems boot process what is the first thing that happens.

• The operating system is started

• POST occurs

• The device drivers for each connected device are loaded

• The BIOS switches on each connected device in a pre-defined sequence

What is the difference between paging and segmentation in memory management?

• Paging splits the process to be loaded into equal size blocks

• Paging splits the process to be loaded into variable sized, logical blocks

• Paging allocates frames to hold the data on the hard drive

• Paging is used on Windows computers, segmentation on MacOS

Bytecode is an example of....

• Machine code

• Assembly language

• Source code

• Intermediate code

Which of the following is not a state that a process in memory can be in?

• Ready to run

• Running

• Blocked

• Paused