Revature Interview UPDATED Exam Questions with CORRECT Verified Answers, Exams of Computer Science

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Revature Interview UPDATED Exam Questions with CORRECT verified Answers 1: What is Revature?- Correct Answer - Revature is a technology talent development company that recruits, trains, and deploys software engineers. 2: Describe the Revature training program.- Correct Answer - The Revature training program is an intensive, hands-on training course that typically lasts 10-12 weeks, focusing on various programming languages, frameworks, and development methodologies. 3: What programming languages are commonly taught in Revatures training program?- Correct Answer - Common programming languages include Java, C#, Python, and JavaScript. 4: What is the purpose of the Revature Interview Exam?- Correct Answer - The purpose of the Revature Interview Exam is to assess a candidates technical knowledge, problem-solving skills, and readiness for the training program. 5: What types of questions are typically asked in the Revature Interview Exam?- Correct Answer - The exam typically includes questions on programming concepts, data structures, algorithms, and sometimes questions related to specific technologies or frameworks. 6: How important is understanding data structures for the Revature Interview Exam?- Correct Answer - Understanding data structures is very important as it forms the basis for many programming problems and algorithmic challenges. 7: What is an algorithm?- Correct Answer - An algorithm is a step-by-step procedure or formula for solving a problem. 8: Give an example of a common sorting algorithm.- Correct Answer - An example of a common sorting algorithm is QuickSort. 9: What is Object-Oriented Programming (OOP)?- Correct Answer - Object-Oriented Programming (OOP) is a programming paradigm based on the concept of objects, which can contain data and code to manipulate that data. 10: Name the four main principles of Object-Oriented Programming.- Correct Answer - The four main principles are Encapsulation, Abstraction, Inheritance, and Polymorphism. 11: What is Encapsulation in OOP?- Correct Answer - 23: Name the different types of loops commonly used in programming.- Correct Answer - Common types of loops include for loops, while loops, and do-while loops. 24: What is a conditional statement?- Correct Answer - A conditional statement is a statement that performs different actions based on whether a specified condition is true or false. 25: Give an example of a conditional statement in Java.- Correct Answer - An example of a conditional statement in Java is the if-else statement. 26: What is an array?- Correct Answer - An array is a collection of elements, each identified by an array index or key. 27: How do you declare an array in Java?- Correct Answer - In Java, you can declare an array as follows: `int[] arrayName;`. 28: What is a function?- Correct Answer - A function is a block of code designed to perform a particular task, which can be called when needed. 29: Explain the difference between a function and a method.- Correct Answer - A function is a standalone block of code, while a method is a function associated with an object or class. 30: What is a constructor in OOP?- Correct Answer - A constructor is a special method used to initialize objects of a class. 31: What is the difference between a constructor and a method?- Correct Answer - A constructor is used to initialize an object, while a method is used to perform a task or operation on an object. 32: Explain the concept of exception handling.- Correct Answer - Exception handling is the process of responding to exceptions, which are runtime errors, in a controlled manner. 33: What are the keywords used in Java for exception handling?- Correct Answer - The keywords used are try, catch, finally, and throw. 34: What is a try-catch block?- Correct Answer - A try-catch block is used to handle exceptions by executing code that might throw an exception in the try block and handling the exception in the catch block. 35: What is the purpose of the finally block?- Correct Answer - The finally block is used to execute code that must run regardless of whether an exception is thrown or not. 36: What is a software development lifecycle (SDLC)?- Correct Answer - SDLC is a process used by the software industry to design, develop, and test high- quality software. 37: Name the phases of the SDLC.- Correct Answer - The phases include planning, analysis, design, implementation, testing, deployment, and maintenance. 38: What is Agile methodology?- Correct Answer - Agile is a software development methodology that focuses on iterative development, where requirements and solutions evolve through collaboration. 39: What is Scrum?- Correct Answer - Scrum is an Agile framework for managing complex projects, typically used in software development. 40: Define a sprint in Scrum.- Correct Answer - A sprint is a time-boxed period, usually 2-4 weeks, during which a specific set of work must be completed and made ready for review. GET, PUT, POST, and DELETE data.Q54: What are the common HTTP methods used in RESTful APIs?A54: Common HTTP methods include GET, POST, PUT, DELETE, PATCH, and OPTIONS. 53: What is a RESTful API?- Correct Answer - A RESTful API is an application programming interface that uses HTTP requests to GET, PUT, POST, and DELETE data.Q54: What are the common HTTP methods used in RESTful APIs?A54: Common HTTP methods include GET, POST, PUT, DELETE, PATCH, and OPTIONS. 54: What are the common HTTP methods used in RESTful APIs?- Correct Answer - Common HTTP methods include GET, POST, PUT, DELETE, PATCH, and OPTIONS. 55: What is JSON?- Correct Answer - JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. 56: What is XML?- Correct Answer - XML (eXtensible Markup Language) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. 57: What is SQL?- Correct Answer - SQL (Structured Query Language) is a standard language for managing and manipulating databases. 58: What is a primary key in a database?- Correct Answer - A primary key is a unique identifier for a record in a database table. 59: What is a foreign key in a database?- Correct Answer - A foreign key is a field in a database table that creates a relationship between two tables. 60: What is normalization in a database?- Correct Answer - Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. 61: What is a JOIN statement in SQL?- Correct Answer - A JOIN statement is used to combine rows from two or more tables based on a related column between them. 62: What is an index in a database?- Correct Answer - An index is a database object that improves the speed of data retrieval operations on a table. 63: What is a transaction in a database?- Correct Answer - A transaction is a sequence of one or more SQL operations that are executed as a single unit of work. 64: Explain ACID properties in the context of databases.- Correct Answer - ACID properties (Atomicity, Consistency, Isolation, Durability) ensure reliable processing of database transactions.