10 Minute Test 3

Which type of interface requires the most resources (memory/processing) to run?

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Embedded systems are designed to...

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An Operating System may make use of a buffer when transferring data.

Buffers are used...

• ...for temporary data storage

• ...for permanent data storage

Which type of secondary storage usually has the fastest read-write speed?

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Answer explanation

This is a tricky question as both Memory Card and SSD are within the Solid State category. Solid state as a category has the fastest read write speeds.

The reason the SSD drive has faster data access as it is presumed this is internal storage where as the memory card is external storage (removable) therefore is further away from the CPU and data takes a little longer to travel between the storage device and the CPU.

True or False?

"The Operating System gives some processes a higher priority for execution by the CPU than others"

• True

• False

Increasing the number of cores in a CPU...

• ... increases the number of instructions processed by each core per second.

• ... increases the number of instructions that can be carried out at the same time.

Which of the following is an example of a magnetic storage device?

• Memory Card

• DVD

• HDD

• SSD

Which of the following components controls the flow of data in the CPU?

• Arithmetic Logic Unit

• Control Unit

• Cache

• OS

What are the benefits of compression?

• File size is reduced therefore takes up less storage space

• File size reduced therefore takes less time to send between networks (e.g. as an email attachment)

• File size reduced therefore takes less time to upload and download

• File size reduced therefore the quality of the file is affected

What is the function of the accumulator?

• Holds the answers of the calculations performed by the ALU

• Holds the address for the next cycle

• Holds the address for the current cycle

• Holds the data fetched from memory