JavaScript IT Questions and Answers MCQ - Set 01 - ObjectiveBooks

JavaScript IT Questions and Answers MCQ - Set 01

Practice Test: Question Set - 01

1. Which brackets is used to write array in java script?
    (A) Curve bracket
    (B) Square bracket
    (C) Curly bracket
    (D) Corner bracket

2. How many types of error are there in JavaScript programming?
    (A) 3
    (B) 4
    (C) 6
    (D) 8

3. What is the full form of BOM?
    (A) Browser Object Method
    (B) Browser Object Model
    (C) Browser Oriented Method
    (D) Browser Oriented Model

4. Which one enables the hosting providers to manage multiple domains on a single server?
    (A) Network server
    (B) SQL server
    (C) Web server
    (D) Database server

5. What is the purpose of Initialization part in ’for’ loop?
    (A) Exit the loop
    (B) Evaluate the condition
    (C) Increase or decrease the initial variable
    (D) Initiate the variable

6. Which statement is used to execute code after try and catch?
    (A) Finally
    (B) Syntax error
    (C) Throw
    (D) Type error

7. What is the purpose of length property in array?
    (A) Returns number of array element
    (B) Returns number of characters
    (C) Returns number of fields in object array
    (D) Returns number of highest array index

8. Which variable works as function argument in java script?
    (A) Function variable
    (B) Global variable
    (C) Local variable
    (D) Object variable

9. Which is an instance of class?
    (A) Class
    (B) Name space
    (C) Object
    (D) Property

10. Which property is used to transfer files from one host to another host over internet?
    (A) IP
    (B) FTP
    (C) HTTP
    (D) SMTP

11. What is the output of the following JavaScript code?
      var x = ” ITI “;
      var y = “ GOVT “;
      var o = y concat(x)
    (A) ITI GOVT
    (D) GOVT ITI

12. Which is a statement terminator in JavaScript?
    (A) ","
    (B) ";"
    (C) ":"
    (D) ". ."

13. Which is a valid js code to sort element of an array tracle?
    (A) Trade.sort:
    (B) Trade.sort();
    (D) Sort.(trade);

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