Which keyword is used to inherit a class in Java?
Anonymous Quiz
48%
A) extends
10%
B) super
11%
C) implements
19%
D) inherits
12%
D) extends
What does Express.js primarily provide in the MEARN stack?
Anonymous Quiz
17%
A) A NoSQL database system
21%
B) A frontend framework
42%
C) A backend web application framework
20%
D) A JavaScript runtime environment
What does SQL stand for?
Anonymous Quiz
89%
A) Structured Query Language
3%
B) Simple Query Language
5%
C) Sequential Query Language
4%
D) Standard Query Language
Which SQL statement is used to extract data from a database?
Anonymous Quiz
12%
A) GET
61%
B) SELECT
26%
C) EXTRACT
1%
D) OPEN
Which SQL statement is used to update data in a database?
Anonymous Quiz
14%
A) MODIFY
4%
B) CHANGE
70%
C) UPDATE
12%
D) ALTER
Which SQL keyword is used to sort the result-set?
Anonymous Quiz
27%
A) SORT
55%
B) ORDER BY
14%
C) GROUP BY
5%
D) ARRANGE
Which of the following is a characteristic feature of cloud computing?
Anonymous Quiz
16%
A) Limited scalability and fixed resources
13%
B) High upfront costs for hardware
67%
C) On-demand self-service and broad network access
4%
D) Sole reliance on local infrastructure
Which SQL statement is used to extract data from a database?
Anonymous Quiz
4%
A) OPEN
27%
B) EXTRACT
62%
C) SELECT
7%
D) GET
Which SQL keyword is used to retrieve only unique values?
Anonymous Quiz
47%
A) DISTINCT
46%
B) UNIQUE
5%
C) DIFFERENT
2%
D) SINGLE
What is the main function of the command interpreter in an operating system?
Anonymous Quiz
23%
A) To provide the interface between the API and application program
21%
B) To handle the execution of programs
53%
C) To interpret commands allowing a user to communicate with the operating system
3%
D) To manage the resources of the computer
What is the primary function of a router?
Anonymous Quiz
23%
A) To provide wireless connectivity
56%
B) To connect multiple networks and route network traffic between them
18%
C) To store data for network users
3%
D) To manage the security of a network
Which of the following is a type of supervised learning?
Anonymous Quiz
25%
A) Clustering
39%
B) Reinforcement Learning
30%
C) Regression
6%
D) Dimensionality Reduction
What is the main function of the operating system?
Anonymous Quiz
88%
A) To manage the computer's hardware and software resources
5%
B) To provide Internet connectivity
4%
C) To run office applications
3%
D) To protect the computer from viruses
In a multitasking operating system, what does the term 'process scheduling' refer to?
Anonymous Quiz
65%
A) The method used to allocate the processor to a process
20%
B) The way the operating system protects the process's memory
9%
C) The process of installing new applications
6%
D) The routine that manages the battery life of the system
Which of the following is an example of a real-time operating system?
Anonymous Quiz
47%
A) Windows 10
6%
B) MacOS
25%
C) Linux
22%
D) RTOS
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How can a data type be declared to be a constant type in JavaScript?
Anonymous Quiz
67%
const
11%
let
12%
var
10%
constant
What does the 'endl' manipulator do in C++?
Anonymous Quiz
40%
Moves the cursor to the next line and flushes the output buffer.
27%
Ends the program execution immediately.
28%
Inserts a newline character into the output stream.
5%
Clears the output buffer and resets it to its initial state.
How is a code block indicated in Python?
Anonymous Quiz
23%
Brackets
60%
Indentation
7%
Key
10%
None of the above
Which function is used to convert an object into a JSON string in Javascript?
Anonymous Quiz
35%
stringify()
33%
parse()
25%
convert()
7%
None of the above