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What are firewalls? Explain and discuss three methods they employ to secure a network. [8]

So the first thing to do for this question is break down the question into what the marks will be given for. As this question is not testing written communication you do not need to worry about writing lo...

BM
Answered by Bhavik M. Computing tutor
2482 Views

What is the difference between compile-time errors and runtime errors?

Before we can run our program on a computer, a compiler translates our human-readable code into machine language - a long string of 0s and 1s. When the code is being compiled, the compiler looks for synta...

TG
Answered by Teodora G. Computing tutor
3069 Views

Describe the difference between passing parameters into a function by reference and by value? Indicating how this may lead to unexpected outputs.

Passing an input parameter by reference is also called pass by address, this is where the address of the variable to act on is passed to the function. This allows the function to change the value stored a...

MB
Answered by Morgan B. Computing tutor
2233 Views

What is the difference between a dynamic and a static data structure?

A dynamic data structure is one that is not fixed in size and may not be contiguous in the computer's main memory. This is implemented through the use of pointers which 'point' to the location of the next...

TD
Answered by Toby D. Computing tutor
11369 Views

Describe what is meant by a modular design and state on advantage of a modular design.

A program which is dividied into self-contained modules which can be further subdivided into smaller modules. They can be written and tested individually.

Advantages are: Can be reused in other pro...

ED
Answered by Emanuel D. Computing tutor
1641 Views

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