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Section-A (Very Short Answer Type Questions) Each question requires a very short answer (not exceeding 75 words), and each carries 3 marks . 1. Write a note on software maintenance. Explanation: Software maintenance refers to the process of modifying, updating, and improving software after its deployment to correct faults, improve performance, or adapt it to a changing environment. It includes: Corrective Maintenance: Fixing bugs and errors. Adaptive Maintenance: Modifying software due to changes in hardware or OS. Perfective Maintenance: Enhancing functionalities. Preventive Maintenance: Improving software for future stability. 2. Explain advantages and disadvantages of software reuse. Advantages of Software Reuse: Cost Reduction: Saves development costs by reusing existing components. Time-Saving: Speeds up development by avoiding redundant coding. Improved Quality: Reused components are already tested and stable. Standardization: Encourages the use of sta...

Section-A (Very Short Answer Questions) (Each question carries 3 marks) 1. What is an operating system? Discuss the various services of the OS. What is an Operating System? An Operating System (OS) is system software that manages hardware and software resources on a computer. It provides a user interface and acts as an intermediary between the user and the computer hardware. Services of an OS: Process Management: Manages process execution, multitasking, process scheduling, and synchronization. Memory Management: Allocates and deallocates memory to processes. Ensures efficient utilization of memory and prevents memory leaks. File System Management: Provides a structured way to store, retrieve, and manage files on storage devices. Handles file creation, deletion, and access permissions. Device Management: Manages input/output devices using device drivers. Ensures smooth communication between hardware devices and software. Security and Protection: Pro...

  Section-A  1. Discuss virtual memory and its benefits. Virtual Memory: Virtual memory is a memory management technique where secondary storage (e.g., a hard disk) is used as if it were part of the main memory (RAM). This allows a system to run applications that require more memory than is physically available. Benefits: Increased Efficiency: Allows more processes to run simultaneously by using disk space as an extension of RAM. Multitasking: Supports running multiple large applications without running out of memory. Isolation: Provides process isolation, preventing one process from interfering with another. Simplified Programming: Allows developers to write programs without worrying about physical memory constraints. 2. Explain directory structure. Directory Structure: A directory structure is a way of organizing files in a computer system. It enables users to store and retrieve files efficiently. There are several types of directory structures: Single...

Np - 3440 BBA/BCA/ETC Examination, Dec - 2023 Environmental Studies (BBA/BCA/ETC - 008)   Section A This section contains 6 question attempt any three questions each questions carries 20 marks answer must be descriptive Q1:-What is pollution describe in detail air pollution its types and control measure.   Q2:- define ecosystem describe in detail the structure and function of an ecosystem read by you   Q3:- write an essay on mineral sources.   Q4:- write notes on the following a. Energy flow in any ecosystem read by you b. Acid rains   Q5 . What do you mean by natural resources differentiate between renewable and nonrenewable resources explain with the help of example.   Q6. Define environment and discuss all the factor of environment Answer 1: What is Pollution? Explain Air Pollution, its Types, and Control Measures. Introduction Pollution refers to the introduction of harmful substances or products into th...