Tribhuwan University

Institute of Science and Technology

2080

Bachelor Level / First Year / First Semester / Science

Bachelors in Information Technology (BIT101)

(Introduction to Information Technology)

Full Marks: 60

Pass Marks: 24

Time: 3 Hours

Candidates are required to give their answers in their own words as for as practicable.

The figures in the margin indicate full marks.

Section A

Long Answers Questions

Attempt any TWO questions.
[2*10=20]
1.
Explain the reason of using hexadecimal and octal number system in computer?Add decimal number 23 and 12 using binary addition and verify the result with the help of decimal system.[10]
2.
What do you mean by network topology? Explain the features of Bus, Star, and Ring topologies.[10]
3.
What is security mechanism? List the technologies used for implementing the security mechanisms.[10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
What are the key features of fourth Generation of computer? Explain. [5]
5.
What are three parts of Central Processing Unit (CPU)? Explain. [5]
6.
What is Deadlock? What are the reasons for deadlock? [5]
7.
What is Binary Encoding? Why computers use Binary Encoding? [5]
8.
Explain about Physical address and Logical address. [5]
9.
Explain characteristics of Database system in brief. [5]
10.
What is security policy? Explain. [5]
11.
Explain impacts of IT on organizations. [5]
12.
Write short notes on: a. Importance of Networking Write short notes on: b. Digital signature [2.5+2.5]