Answer the following problems in detail.

problem 1) Distinguish between computer networks and distributed systems.

problem 2) What do you mean by data dictionary?

problem 3) describe the term VIRUS with suitable ex.

problem 4) prepare down the disadvantages of mesh topology?

problem 5) What do you mean by a data center?

problem 6) do you mean by the term Security.

problem 7) describe the role of computers in modern society in detail.

problem 8) prepare down the layers of OSI model.

problem 9) What do you mean by cryptography?

problem 10) describe firewall with detail explanation.