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React js multiple choice questions with answers

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Explore a comprehensive collection of react js mcq questions . Test your knowledge and understanding of React.js concepts, from component lifecycle to state management and JSX syntax. Enhance your skills, prepare for interviews, or assess your proficiency in this popular JavaScript library.  MCQss provide a collection of MCQs specifically focused on testing one's knowledge and understanding of React.js concepts. These react js multiple choice questions with answers likely cover a wide range of topics, such as component lifecycle, state management, JSX syntax, event handling, and more.   Here are some react js assessment multiple choice questions along with their answers: 1. What is React.js?    a) A back-end programming language    b) A front-end JavaScript library    c) A database management system    d) A mobile application framework    Answer: b 2. Which company developed React.js?    a) Facebook    b) Go...

Internet security MCQ (Free Multiple-Choice Questions)

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MCQss is a free MCQ practise-based website that provides you with a platform to assess your skill level before appearing in your final exam or job interview test. These latest Internet security mcq with answers will help you pass your final exam without hesitation. Internet security mcq questions and answers What is the best way to protect your personal information online? A) Share it only with trusted websites and companies B) Use a VPN whenever you connect to the internet C) Use complex and unique passwords for each account D) All of the above Answer: D) All of the above What is a VPN? A) A virtual public network used by companies to connect remote workers B) A virtual private network used by individuals to encrypt their internet connection C) A virtual password network used to store and manage passwords D) A virtual personal network used to connect IoT devices Answer: B) A virtual private network used by individuals to encrypt their internet connection What is a firewall? A) A type...

200+ Health & Medicine Online Interview Test MCQ

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 MCQss contains a vast collection of multiple-choice questions related to Health and Medicine.The questions cover a diverse range of topics, including Anatomy, Physiology, Pharmacology, Pathology, and many more. These free question banks for medical students are helpful for preparing for medical entrance exams, nursing exams, or other health-related competitive exams. 1. Which of the following is not a function of the liver? a) Regulation of blood sugar levels b) Production of bile c) Production of insulin d) Detoxification of harmful substances Answer: c) Production of insulin 2. What is the recommended daily intake of water for an average adult? a) 1 liter b) 2 liters c) 3 liters d) 4 liters Answer: b) 2 liters 3. Which of the following is not a symptom of depression? a) Lack of interest in activities b) Insomnia c) High energy levels d) Feelings of sadness or hopelessness Answer: c) High energy levels 4. What is the name of the condition where there is an inflammation of the jo...

1100+ javascript mcq(multiple choice) question with answers

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Free JavaScript MCQ Practice Test (1100+ MCQ) Are you ready to test your knowledge of JavaScript, mcqss provide 1100+ JavaScript MCQ (Free Multiple Choice Questions and Answers). So start practice and develop your skill level. 1. What is JavaScript? a) A server-side programming language b) A client-side programming language c) Both a server-side and a client-side programming language d) None of the above 2. What is the correct way to declare a JavaScript variable? a) var = variableName; b) variableName = var; c) var variableName; d) None of the above 3. What is the difference between == and === in JavaScript? a) == compares values and data types, while === only compares values b) == only compares values, while === compares values and data types c) == and === are interchangeable d) None of the above 4. Which statement is used to exit a loop in JavaScript? a) continue b) break c) exit d) return 5. What is the purpose of the typeof operator in JavaScript? a) To check if a variable is nul...

300+ C-sharp Online MCQs Practice Test

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The website mcqss.com provides a large number of multiple-choice questions related to C#. These questions cover a wide range of topics related to the C# programming language, including data types, control statements, loops, classes, and access specifiers. The questions are designed to test a candidate's knowledge and understanding of C#, and are suitable for both beginners and experienced programmers. The website is a useful resource for anyone looking to improve their skills in C# and prepare for job interviews or certification exams in the field.  Practice C-sharp free mcqs questions Start practice our  300+ free c-sharp mcqs (online multiple choice questions with answers) and develop your skill level. 1. What does C# stand for? A. Computer Sharp B. C Sharp C. Common Sharp D. Console Sharp Answer: B 2. Which of the following is not a data type in C#? A. int B. bool C. char D. array Answer: D 3. Which keyword is used to define a class in C#? A. class B. struct C. interface ...

Practice 300+ Biology MCQs (Free multiple choice questions)

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Online Interview MCQs Questions MCQss Free (mcqs practice test ) is a Free Multiple Choice Questions Answers platform. These online interview questions are designed to help students and individuals who are preparing for exams, tests, or job interviews.  300+ Biology Solved MCQs Test (multiple choice questions) Practice our Free more than  300 Biology MCQs (online interview test)  and see how sharp is your knowledge of Biology. The website has a user-friendly interface, and visitors can navigate through various categories of biology MCQs such as cell biology, genetics, ecology, evolution, and more.  Here are only thirty multiple choice questions related to biology along with their answers  Which of the following is the smallest unit of life? a. Cell b. Molecule c. Atom d. Tissue Answer: a. Cell Which of the following is not a type of RNA? a. Messenger RNA (mRNA) b. Transfer RNA (tRNA) c. Ribosomal RNA (rRNA) d. Deoxyribonucleic acid (DNA) Answer: d. Deoxyri...

800+ FREE JAVA PROGRAMMING MCQs

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This website offers multiple-choice questions (MCQs) related to the Java programming language, designed to test and improve learners' knowledge and understanding of Java concepts. It is a helpful resource for Java learners to assess their skills and track their progress in a concise and accessible format. MCQss provide latest and authentic java multiple choice questions. The users receive instant feedback of the answers. No registration is required to take the test, and it is completely free of cost. Java programming online multiple choice questions What is Java? A. A programming language B. A software application C. A hardware device D. An operating system Answer: A What is the purpose of the "public static void main" method in Java? A. It is the entry point of a Java program. B. It is used to print text to the console. C. It is used to declare variables. D. It is used to create objects. Answer: A What is the correct syntax to declare an array in Java? A. int[] arrayNa...