Public Service Commission Nepal Rastra Bank, Open Competitive Written Examination for the post of Technician, Information Technology, Assistant Deputy, Assistant (Information Technology)2081/09/14
Paper: First
Time: 2 Hours Full Marks: 75
Subject: Information Technology-I
The answer of each section should be written in a separate answer book. Otherwise the answer sheet will be cancelled.
Subjective
Section "A" 30 Marks
1. What is Distributed Denial Of Service (DDOS) attack? Explain in brief with an arbitrary example. 5
2. Explain the major components of motherboard of a computer with their purposes. 5
3. Mention the working principle of Zener diode, its characteristics behaviors and uses. 5
4. Explain the working principle of MOSFET used as an amplifier. 5
5. Describe how storage devices facilitate data storage, retrieval and organization for various applications and operating systems. Also, describe major categories of storage devices along with their characteristics including speed, capacity and use cases. 4+6 = 10
Section "B" 45 Marks
6. Explain various memories of computer along with their characteristics features and uses. 5
7. Discuss the types of security threats to operating system and ways to manage those threats.
8. Briefly describe TCP and UDP with their purpose. What is IPCONFIG tool used for? Write. 4+1 = 5
9. What is Disaster Recovery? Mention the basic steps of disaster recovery planning. 2+3 = 5
10. Differentiate between lossless and lossy compression based on their working procedures, benefits, drawbacks and applications. 5
11. Explain the concept of process management in operating systems, including the different states of a process, the role of the Process Control Block (PCB) and the various scheduling algorithms used for process management. 10
12. Differentiate among network hardware (NIC, Repeater, Hub, Bridge, Switch and Router) along with their functions and features. 10
-The End-
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