Assignment 2

People interact directly with computers in many field in daily life.But we have threats to computr such as viruses and natural disasters.

a)Name 4 main sectors that used ict in their management.

~Education,banking,industry,e-commerce

b)State 2 different between worm and viruses.

WORMS-operates through the network.

-spreads copies of itself as a standalone program.

VIRUSES-spreads through any medium.

-spreads copies of itself as a that attaches to other programes.

c)There are 6 types of security measures that can be used to protect our computer.Explain what is;

i)Cryptography~is a process of transforming plaintext into ciphertext then back again.

ii)Firewall~is a piece of hardware or software which functions in a networked environment to prevent some communications forbidden by security policy.We used firewall to prevent hacking (unauthorized access is the use of a computer or network without permission).