Small comp sys fund quiz

What is the purpose of the kernel in an operating system?

• To increase the speed of the internet connection
• To make the operating system visually appealing
• Manage system resources

what is the 2nd step of the COMPTIA 6 STEP?

• Establish a theory of probable cause

• Test the theory to determine cause.

• Establish a plan of action to resolve the problem and implement the solution.

• Identify the problem

What does DMA do?

• Allows peripherals to access the memory directly without involving the CPU

• DMA is responsible for decoding memory addresses within the CPU.

• DMA is responsible for allocating memory to each running program

Answer explanation

The wrong answer is describing the memory management unit or MMU

Why is DMA Important?

• ensures the security and integrity of data transferred between peripheral devices and the CPU

• frees up the CPU to perform other tasks while data is being transferred

What is step 5 of the COMPTIA 6 step?

• Establish a plan of action to resolve the problem and implement the solution.

• Test the theory to determine cause.

• Verify full system functionality

• Establish a theory of probably cause.

what is the 2nd layer of the operating system

• I/O management

• file management

• memory management

• user interface

Multi tasking refers to what?

• having two processors running the same program

• having more than one processor

• running more than one program at a time

SRAM is what?

• volatile cache memory on the CPU

• non-volatile storage

• volatile main memory

What is normally stored on the ROM?

• The Operating system

• The BIOS/UEFI

• Programs

• The GUI

Which of these buses are bi-directional?

• Control

• Data

• Address