OCR A-Level Computer Science Legal, ethical and data overview quiz quiz

Real (float)

Integer (whole number)

Boolean (true or false)

Character

64

128

256

65536

First in, first out (FIFO)

Sorted at all times

Last in, first out (LIFO)

Indexed by key

Push and pop

Hash and probe

Insert and traverse

Enqueue and dequeue

It can grow and shrink dynamically without shifting elements

It allows faster access to any element directly by its numeric index position

It uses less memory per item because no pointers are stored alongside the data

It keeps every item permanently in sorted order

checks every single item in the structure one after another until it is found

applies a hash function to the key to compute the array index directly

keeps the whole table permanently sorted so a binary search can be used

stores all the keys in a first in, first out queue and scans it

$\{2, 4, 6, 8\}$

$\{2, 8\}$

$\{4, 6\}$

$\{\}$

compare the two digit strings directly, character by character, from the left

assume the hexadecimal value is always the larger of any two given numbers

simply count how many characters each number has and pick the longer one

convert both to a common base such as denary, then compare

Unauthorised access to or modification of computer material

Storing personal data securely with encryption and access controls in place

Writing and freely sharing your own open-source software with the community

Encrypting files that belong to you on your own personal computer

regulating exactly how organisations may store and process personal data records

giving the creator exclusive rights to copy, distribute and adapt their work

allowing anyone at all to copy, distribute and modify any program completely freely

governing the lawful interception of private electronic communications by the state

List only the disadvantages of the technology and ignore any possible benefits entirely

Simply state that the new technology is illegal and therefore should never be used at all

Present a balanced discussion of benefits and harms and reach a justified conclusion

Describe the underlying hardware in great technical detail without discussing any ethics

the gap between binary number representation and denary number representation in computers

the split between the physical hardware of a system and the software that runs upon it

the difference between a stack data structure and a queue data structure in memory

the gap between those with access to technology and skills and those without