Original Question GATE CSE 1990 Question 2(iv): Consider the following relational algebra expression: πA(R ⋈ (S ⋈ T)) where R, S, and T are relations, and A is a set of attributes. Suggest how this expression can be optimized. Detailed …
Gate Question State True or False with reason: Logical data independence is easier to achieve than physical data independence. Answer and Explanation Answer: False Logical data independence is actually more difficult to achieve than physical data independence. Let’s explore why …
A comprehensive guide to understanding key database concepts for GATE aspirants Original GATE Question Year: 1990 Question Number: 2-iv Instructions: Match the following database concepts with their corresponding terms: Secondary index – (q) B-tree Non-procedural query language – …
GATE CSE 1987 Question 2n: Mastering Functional Dependencies in Databases Are you preparing for GATE CSE and struggling with database concepts? Let’s dive deep into a classic question from GATE CSE 1987 that tests your understanding of functional dependencies. This …
GATE CSE 1987 Question 2n: Functional Dependencies in Databases Original GATE Question Year: 1987 Question Number: 2n Question: Does a relation r with schema (X, Y) satisfy the functional dependency X → Y, and can the tuples ⟨1, …
Introduction In the realm of operating systems (OS), process scheduling plays a crucial role in ensuring efficient CPU utilization and smooth multitasking. The scheduler is responsible for deciding which process gets to execute at any given time, ensuring that system …
Process Schedulers in Operating Systems Understand the key concepts of process schedulers, their types, and roles in operating systems, with real-life examples from Windows, UNIX/Linux, and macOS. Essential knowledge for GATE and UGC NET preparation. Introduction Process scheduling is one …
Discover the fundamentals of CPU scheduling in operating systems. This guide covers key terminologies, different scheduling algorithms, and their impact on system performance, complete with numerical examples. Introduction CPU scheduling is a fundamental concept in operating systems that ensures efficient …
Introduction to Process Control Block (PCB) 1. Introduction to Process Management: Definition: Process management is a core function of the Operating System (OS) responsible for managing processes, from creation to termination. Example: Compiling and running a C/C++ program demonstrates how …
Introduction to Process Structure in Memory When a program runs on a computer, it is loaded into the system’s memory, transforming it from a passive entity (a program) into an active one (a process). The memory structure of a process …
Context Switch: What It Is: Context switch happens when the CPU shifts from executing one process to another. This involves saving the current process’s state (like its position in the task, data in registers, etc.) and loading the state of …
Imagine you’re working on your computer, and you have several tasks open—maybe a web browser, a music player, and a word document. But, you can only focus on one thing at a time. Your brain quickly switches between these tasks, …
