admin Oct, Fri, 2024 EXAM JAVASCRIPT PROGRAMMING EXAM 1234567891011121314151617181920 Exam Instructions: Total Number of Questions: 20 You will be required to answer a total of 20 multiple-choice questions. Time Limit: 200 seconds for the entire exam You must complete all 20 questions within 200 seconds. Once the time is up, the exam will automatically submit. Passing Criteria: A minimum score of 60% is required to pass the exam and qualify for a certificate. Certificate Award: Upon passing with at least 60%, you will be awarded a Certificate of Achievement. Multiple Attempts: You are allowed to take the exam multiple times. Only your highest score will be considered for certification. Additional Instructions: Read each question carefully before answering. The exam timer cannot be paused once it begins. Ensure a stable internet connection throughout the exam. Good luck, and feel free to retake the exam to improve your score! JAVASCRIPT PROGRAMMING EXAM Test your JAVASCRIP skills with a challenging exam designed to evaluate your knowledge in programming, data structures, and algorithms The certificate will be generated based on the information you provide in the form, so please ensure that all details are entered correctly. NameEmailPhone NumberUniversityCollegeDegreeDepartmentPass Out YearPass Out Year2014201520162017201820192020202120222023202420252026202720282029 1 / 20 1) How can you implement private methods in JavaScript classes? A) Creates private methods B) Avoid using for clarity C) Limits to public methods only D) Control with closures only 2 / 20 2) How can you use the Map object in JavaScript? A) Limits to unique keys B) Control with arrays only C) Maintains insertion order D) Avoid using objects for mapping 3 / 20 3) How do you create a closure in JavaScript? A) Retains access to its scope B) Controls execution context C) Avoid using nested functions D) Limits to function scope 4 / 20 4) How can you merge two arrays in JavaScript? A) Control with loops only B) Merges two arrays C) Limits to unique values D) Avoid using for filtering 5 / 20 5) How do you handle promises in JavaScript? A) Handles promise results B) Avoid using for clarity C) Control with callbacks only D) Limits to synchronous code 6 / 20 6) What is the purpose of the call() method in JavaScript? A) Avoid using call for clarity B) Control with apply only C) Calls a function with context D) Limits to event handling 7 / 20 7) What is the output of console.log((1).toString() === ‘1’)? A) True B) False C) undefined D) "TypeError" 8 / 20 8) How can you clone an object in JavaScript? A) Limits to deep copying B) Creates a shallow copy of an object C) Control with constructors only D) Avoid using cloning methods 9 / 20 9) What is the output of console.log([1, 2, 3].indexOf(2))? A) 2 B) False C) undefined D) True 10 / 20 10) What is the purpose of the bind() method in JavaScript? A) Control with apply only B) Sets function context C) Avoid using for callbacks D) Limits to creating new functions 11 / 20 11) What is the purpose of the Array.some() method? A) Checks if at least one element meets a condition B) Limits to all elements C) Avoid using some for checks D) Control with loops only 12 / 20 12) What is the purpose of window.localStorage in JavaScript? A) Avoid using for security B) Limits to session only C) Stores data persistently D) Control with cookies only 13 / 20 13) What is the purpose of the setImmediate() function? A) Executes callback immediately B) Avoid using for clarity C) Control with setTimeout only D) Limits to timeout only 14 / 20 14) How can you create a singleton in JavaScript? A) Control with constructors only B) Limits to multiple instances C) Avoid using for global access D) Ensures single instance 15 / 20 15) How can you convert a string to a number in JavaScript? A) Avoid using type conversion B) Control with manual checks only C) Converts string to number D) Limits to specific types 16 / 20 16) How can you check if a function is invoked as a method or as a standalone function? A) Avoid using for clarity B) Checks invocation context C) Limits to arrow functions D) Control with strict mode only 17 / 20 17) How can you implement inheritance in JavaScript? A) Control with classes only B) Limits to static inheritance C) Implements inheritance through prototypes D) Avoid using prototype chaining 18 / 20 18) What does the call() method do in JavaScript? A) Avoid using for performance B) Invokes function with context C) Control with apply only D) Limits to binding context only 19 / 20 19) What is the output of console.log((function() { return typeof arguments; })())? A) "string" B) "object" C) "array" D) "undefined" 20 / 20 20) How do you create a function that accepts a variable number of arguments? A) Control with array methods only B) Accepts variable arguments C) Avoid using rest parameters D) Limits to fixed arguments Your score isDear %%user_name%%, Your Score is %%score%% in %%quiz_name%% Share this post in Your linkedIn Post LinkedIn Facebook Twitter VKontakte Don’t miss out on more exciting challenges and updates—follow our network to stay ahead! 0% Thank you for participating in our Exam We’d love to hear your feedback to help us improve. Please take a moment to complete this review form. Thank you for your time and valuable feedback! 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