Answer the following questions in detail.
Question 1) Distinguish between computer networks and distributed systems.
Question 2) What do you mean by data dictionary?
Question 3) Explain the term VIRUS with suitable example.
Question 4) Write down the disadvantages of mesh topology?
Question 5) What do you mean by a data center?
Question 6) do you mean by the term Security.
Question 7) Explain the role of computers in modern society in detail.
Question 8) Write down the layers of OSI model.
Question 9) What do you mean by cryptography?
Question 10) Explain firewall with detail explanation.