Last Min

Question 1

Referential integrity

Answer 1

Ensuring information is not removed if it is required elsewhere in a linked database

Question 2

Linkers

Answer 2

this is a piece of software that is responsible for linking external modules and libraries included within the code

Question 3

Loafers

Answer 3

When a file is executed, the
loader retrieves the library or subroutine from the given memory location.

Question 4

Libraries

Answer 4

Libraries are pre-compiled programs

ready-to-use and error free, so save time

Question 5

Advantages and disad of bus

Answer 5

Relatively inexpensive to set up
● Doesn’t require any additional
hardware

If backbone cable fails, the entire
network gets disconnected
● As traffic increases, performance
decreases

Question 6

Advad and disadvantages of star

Answer 6

● Performance is consistent even with
heavy network traffic
● If one cable fails, only that single
terminal is affected
● Transmits data faster, giving better
performance than bus topology

Expensive due to switch and cabling
● If the central switch fails, the rest of
the network fails

Question 7

Ad and disad of mesh

Answer 7

Nodes don’t go through central switch so faster

Expensive if hardware Because need wires as it’s all connected
Expensive no hardware because u need devices to connect it

Question 8

Multi tasking

Answer 8

enable the user to carry out tasks seemingly simultaneously. This is done by using time slicing to switch quickly between programs and applications in memory

A multi-tasking operating system is the kind that you might find on a home PC.