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What is Binary Search? Binary search is an efficient algorithm for finding a target value within a sorted array (or list). It works by repeatedly dividing the search interval in half, allowing you to skip over large portions of the array, making it much faster than a linear search, which checks each element one by one. How Does Binary Search Work? Here’s a step-by-step breakdown of how binary search operates: 1.  Start with the entire array : Define the leftmost ( l eft ) and rightmost ( right ) boundaries of the array. 2.  Find the middle element : Calculate the middle index of the current search range. 3.  Compare the middle element with the target : o  If the middle element is equal to the target, the search is complete, and the target is found. o  If the target is smaller than the middle element, focus on the left half of the array (ignore the right half). o  If the target is larger than the middle element, focus on the right half of the array (ignore t...

Python Interview Questions 1. What is Python, and explain the key features of python? 2. What are variables and data types in Python? 3. How do you create a list in Python? 4. Can you explain the difference between a list and tuple? 5. How do you handle exceptions in Python? 6. What are Python dictionaries, and how do you use them? 7. Explain list comprehension and provide an example. 8. How do you define a function in Python? 9. What is the purpose of the ‘self-parameter’ in class methods? 10. What is the usage of List, Set, Tuple and Dictionary? 11. What are lambda functions? 12. What are the new operators which are present in the Python? 13. How do you work with files in Python? 14. What are Python modules and packages? 15. How do you implement inheritance in Python? 16. What are the built-in data types in Python? 17. How do you sort a list in Python? 18. What is the difference between ‘==’ and ‘is’? 19. What is mean by the virtual environment? Do you know how to create a virtual en...

The Software Development Life Cycle (SDLC) is a systematic approach designed to produce high-quality software. By breaking down the development process into clear phases, teams can ensure that they meet user needs while staying on schedule and within budget. Let’s explore each step of the SDLC. 1. Requirement Gathering and Analysis The first step is to understand what the stakeholders need. This means talking to clients, users, and team members to collect all necessary information. By holding meetings, surveys, and brainstorming sessions, developers create a Requirement Specification Document . This document serves as the base for the whole project, showing what the software should do. 2. Planning After gathering requirements, the next step is planning. Here, the team defines the project scope, estimates costs, and decides how to allocate resources. They also look for possible risks that could arise during development. The outcome is a Project Plan that keeps everyone aligned througho...

For Fresher’s , HR interviews are not just about landing a job but also about making a strong first impression in the professional world. By being well-prepared, confident, and honest, you can set yourself apart from other candidates. Remember, Managers do not expect you to know everything as a fresher, they are looking for someone with the right attitude, soft skills, and potential to grow within the company.   Questions 1.Tell me about yourself. 2.What are your strengths and weaknesses?   3.Why should we hire you? 4.Why do you want to work here? 5.Tell me something new about yourself apart from your resume. 6.What are your career goals? 7.What is the one best moment that motivated you? 8.How do you handle stress and pressure?   9.What is your greatest achievement?   10.Why are you leaving your current job? (For Experience Candidates) 11.Why were you fired? (For experience Candidates) 12.Why was there a gap in your employment?  (For Experien...

SQL Topics Data types  , Types of SQL Commands ( DDL , DML , DRL , DCL , TCL )  , Importance of NULL , Importance of && (double am-present ) , Operators in SQL  , Special operators,   Number functions, Character functions , date functions  , Conversion Functions  ( to_char, to_date , to_number ), aggregate functions , order by , group by, having clause , constraints , sub-queries (Single-row , multi-row , multi-column , co-related, scalar  sub-queries) , pseudo-columns , Joins , Views , Importance of alias,   listagg , decode, trunc date function , Indexes , NVL  function , coalesce ,null - if ,case statement , extract. Basic SQL Questions 1. What is SQL? 2. What is a database ? 3. What are the different types of SQL commands? 4. What is the difference between SQL and MySQL? 5. Explain the structure of a SQL query. 6. What is a primary key? 7. What is a foreign key? 8. What are the different data types in SQL? 9. What is a SQL jo...