What does closed source software entail?

Giving no access to the source code

Giving full access to the source code

Giving partial access to the source code

Open source software allows... (multiple answers)

the modification and improvement of source code

no modification and improvement of source code

One difference between open and closed source is ... (multiple answers)

closed requires a cost to purchase a license

closed may have ongoing fees like a subscription

open requires a cost to purchase a license

open may have ongoing fees like a subscription

Which of the following is a benefit of using virtual storage (NOT VIRTUAL MEMORY)? (multiple answers)

data is stored away from the computer

all data can be backed up at the same time

can access data from elsewhere in the world

Which of the following is a benefit of using virtual storage (NOT VIRTUAL MEMORY)? (multiple answers)

data can be recovered from an off site location

do not need to worry about local storage size when backing up on virtual storage

storage can be expanded to increase the storage capacity

Which of the following is a disadvantage of LAN?

can't share an internet connection

A LAN can centrally ... (multiple answers)

provide usernames and passwords

A LAN allows access to data on

A LAN does not allow access to data

A LAN allows access to data on ...

A LAN does not allow access to data

Which of the following are descriptions of protocol layers? (multiple answers)

Each layer applies protocols in order i.e. one after the other

Each layer is independent allowing modification without effecting other layers

Each lay applies protocols at the same time

Each layer is not independent but allows modification without effecting other layers

Which of the following are descriptions of protocol layers? (multiple answers)

Each layer can only communicate with adjacent layers

Layers allow for standards for individual tasks

Each layer can communicate with any layer

Layers do not allow for standards for individual tasks

Which of the following are descriptions of protocol layers? (multiple answers)

Each layer breaks a task down into manageable units

It is easy to find a issue with a layer

Each layer performs tasks and does not need them broken down

it is difficult to find an issue with a layer

Which of the following best describes a Multi-User Operating System?

allows multiple users at the same time

runs multiple programs at the same time

allows multiple computers to work together on a single task

has a dedicated limited function

Which of the following best describes a Multi-Tasking Operating System?

runs multiple programs at the same time

allows multiple users at the same time

allows multiple computers to work together on a single task

has a dedicated limited function

Which of the following best describes a Distributed Operating System?

allows multiple computers to work together on a single task

runs multiple programs at the same time

allows multiple users at the same time

has a dedicated limited function

Which of the following best describes a Embedded Operating System?

has a dedicated limited function

runs multiple programs at the same time

allows multiple users at the same time

allows multiple computers to work together on a single task

Which of the following are the first and second steps of dealing with an interrupt?

● Interrupt checked for at start/end of each fetch-execute cycle ● If the interrupt is of a lower/equal priority to the current process then the current process continues

● (If interrupt raised) contents of registers copied to stack ● Flags are set to determine if interrupts are enabled / disabled

● Program counter changed to point to Interrupt Service Routine (ISR) // ISR runs ● After interrupt complete, previous register values restored back from stack

● Flag is reset ● If higher priority interrupt received during servicing of interrupt, this is added to stack and new interrupt dealt with

Which of the following are the third and fourth steps of dealing with an interrupt?

● (If interrupt raised) contents of registers copied to stack ● Flags are set to determine if interrupts are enabled / disabled

● Interrupt checked for at start/end of each fetch-execute cycle ● If the interrupt is of a lower/equal priority to the current process then the current process continues

● Program counter changed to point to Interrupt Service Routine (ISR) // ISR runs ● After interrupt complete, previous register values restored back from stack

● Flag is reset ● If higher priority interrupt received during servicing of interrupt, this is added to stack and new interrupt dealt with

Which of the following are the fifth and sixth steps of dealing with an interrupt?

● Program counter changed to point to Interrupt Service Routine (ISR) // ISR runs ● After interrupt complete, previous register values restored back from stack

● Interrupt checked for at start/end of each fetch-execute cycle ● If the interrupt is of a lower/equal priority to the current process then the current process continues

● (If interrupt raised) contents of registers copied to stack ● Flags are set to determine if interrupts are enabled / disabled

● Flag is reset ● If higher priority interrupt received during servicing of interrupt, this is added to stack and new interrupt dealt with

Which of the following are the seventh and eighth steps of dealing with an interrupt?

● Flag is reset ● If higher priority interrupt received during servicing of interrupt, this is added to stack and new interrupt dealt with

● Interrupt checked for at start/end of each fetch-execute cycle ● If the interrupt is of a lower/equal priority to the current process then the current process continues

● (If interrupt raised) contents of registers copied to stack ● Flags are set to determine if interrupts are enabled / disabled

● Program counter changed to point to Interrupt Service Routine (ISR) // ISR runs ● After interrupt complete, previous register values restored back from stack

What is the aim of memory management?

To ensure RAM is used efficiently and not wasted

To ensure secondary storage is used efficiently and not wasted

To ensure primary storage is used efficiently and not wasted

To ensure ROM is used efficiently and not wasted

What does memory management do?

Removes data not needed anymore, frees up space and allocates memory to applications

Removes cached data and clears up temporary internet files

frees up space and allocates storage space for applications upon install

Which of the following describes paging?

Paging uses fixed sized divisions to split up memory. Paging is divided physically.

Paging uses variable sized divisions to split up memory. Paging is divided logically.

Paging uses fixed sized divisions to split up memory. Paging is divided logically.

Paging uses variable sized divisions to split up memory. Paging is divided physically.

Which of the following describes segmentation?

Segmentation uses variable sized divisions to split up memory. Segmentation is divided logically.

Segmentation uses fixed sized divisions to split up memory. Segmentation is divided logically.

Segmentation uses fixed sized divisions to split up memory. Segmentation is divided physically.

Segmentation uses variable sized divisions to split up memory. Segmentation is divided physically.

When would virtual memory be used?

Virtual memory may be used when RAM is almost full to enable applications to continue running by using secondary storage to act as memory until there is enough free space in RAM.

Virtual memory may be used when ROM is almost full to enable applications to continue running by using secondary storage to act as memory until there is enough free space in ROM.

Virtual memory may be used when RAM is almost full to enable applications to continue running by using primary storage to act as memory until there is enough free space in RAM.

Virtual memory may be used when RAM is almost full to enable applications to continue running by using secondary storage to act as memory until there is enough free space in ROM.

If data is in virtual memory, what needs to happen before it can be used?

It needs to be moved back to RAM

It needs to be deleted from secondary storage

It needs to be transferred to ROM

Which statements are true? (multiple answers)

Paging causes internal fragmentation whereas segmentation causes external fragmentation

A page table is used to map page location which is slower than a segmentation table

Paging causes external fragmentation whereas segmentation causes internal fragmentation

A segmentation table is used to map segment locations which is slower than a page table

Which statements are true?

RAM is more expensive that secondary storage per GB

Over use of virtual memory causes slow down and even disk thrashing if pages have to be swapped back and forth too often

RAM is less expensive that secondary storage per GB

Over use of virtual storage causes slow down and even disk thrashing if segments have to be swapped back and forth too often

Which of the following describes a stack?

Stack is FILO/LIFO and uses one pointer. A stack is pushed and popped.

Stack is a FIFO/FILO and uses one pointer. A stack is pushed and popped.

tack is a LIFO/FILO and uses one pointer. A stack is enstacked and destacked.

Stack is a FIFO/FILO and uses one pointer. A stack is enstacked and destacked.

Which of the following describes a queue?

A queue is FIFO/LILO and uses two pointers. A queue is enqueued and dequeued.

A queue is FIFO/LIFO and uses two pointers. A queue is pushed and popped.

A queue is FIFO/LILO and uses one pointer. A queue is enqueued and dequeued.

A queue is FIFO/LILO and uses two pointers. A queue is pushed and popped.

Which of the following describes a tuple?

A tuple cannot be changed at runtime because it is immutable

A tuple cannot be changed at runtime because it is mutable

A tuple can be changed at runtime because it is immutable

A tuple can be changed at runtime because it is mutable

Which of the following describes an array?

An array is fixed in size. Arrays hold data of a single data type.

An array is variable in size. Arrays hold data of a single data type.

An array is variable in size. Arrays hold data of a multiple data type.

An array is fixed in size. Arrays hold data of a multiple data type.

Which of the following describes a list?

An list is variable in size. Arrays hold data of a multiple data type.

An list is variable in size. Arrays hold data of a single data type.

An list is fixed in size. Arrays hold data of a single data type.

An list is fixed in size. Arrays hold data of a multiple data type.

Revision

Quiz

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Computers

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1st - 12th Grade

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Practice Problem

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R Rayat

Used 12+ times

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