Which Java keyword is used to create a subclass of a class?
Anonymous Quiz
16%
A) super
57%
B) extends
9%
C) implement
17%
D) subclass
✍5🤷♂2
What is the Java API?
Anonymous Quiz
88%
A) Application Programming Interface
2%
B) American Petroleum Institute
4%
C) Automated Program Integration
6%
D) Advanced Programming Interface
Which collection in Java stores elements in key-value pairs?
Anonymous Quiz
32%
A) ArrayList
18%
B) HashSet
35%
C) HashMap
16%
D) LinkedList
Which of the following access modifiers restricts access to the same package and subclasses in Java?
Anonymous Quiz
13%
A) public
45%
B) private
27%
C) protected
15%
D) default (package-private)
👍2❤🔥1
What is the purpose of the cin object in C++?
Anonymous Quiz
15%
A. It is used to print output to the console.
74%
B. It is used to read input from the console.
8%
C. It is used to perform mathematical calculations.
4%
D. It is used to declare variables.
What SQL statement is used to update data in a database?
Anonymous Quiz
6%
A) SELECT
14%
B) MODIFY
80%
C) UPDATE
1%
D) CHANGE
👍2
In SQL, which keyword is used to retrieve data from two or more tables with a related column?
Anonymous Quiz
66%
A) JOIN
12%
B) CONNECT
15%
C) MERGE
7%
D) COMBINE
👍1
Which SQL clause is used to filter the results of a SELECT statement?
Anonymous Quiz
55%
A) WHERE
18%
B) FROM
21%
C) SELECT
6%
D) HAVING
👍2❤🔥1🤣1
Which SQL command is used to retrieve all the records from a table?
Anonymous Quiz
66%
A) SELECT
24%
B) FETCH
6%
C) LOAD
4%
D) READ
👍5❤🔥1🤷♂1🕊1
What SQL statement is used to insert data into a database?
Anonymous Quiz
8%
A) ADD
85%
B) INSERT
5%
C) UPDATE
2%
D) CREATE
❤5👍4
What SQL statement is used to modify existing data in a database?
Anonymous Quiz
33%
A) ALTER
30%
B) MODIFY
35%
C) UPDATE
1%
D) CHANGE
👍18
Which SQL keyword is used to retrieve only unique values?
Anonymous Quiz
45%
a) DISTINCT
49%
b) UNIQUE
4%
c) DIFFERENT
2%
d) DISTINCTROW
👍4❤3❤🔥2🤷♂1🕊1
What is the purpose of the setTimeout function in JavaScript?
Anonymous Quiz
30%
a) To pause the execution of the script for a specific duration
31%
b) To set an interval for repeatedly executing a function
31%
c) To delay the execution of a function for a specified amount of time
8%
d) To measure the time taken by a function to execute
👍5❤1
What is the purpose of the JSON.stringify() method in JavaScript?
Anonymous Quiz
15%
a) Parse a JSON string
56%
b) Convert a JavaScript object to a JSON string
10%
c) Parse a JSON object
18%
d) Convert a JSON string to a JavaScript object
👍4
What does the !== operator in JavaScript mean?
Anonymous Quiz
52%
a) Not equal in value and not equal in type
33%
b) Not equal in value but equal in type
6%
c) Equal in value and equal in type
8%
d) Equal in value but not equal in type
✍12🤷♂4👍3
Which of the following is a valid way to declare a variable in JavaScript?
Anonymous Quiz
13%
a) variable x;
50%
b) var x;
12%
c) x = variable;
25%
d) let x;
🤷14❤🔥9👍3
What is the correct way to include an external JavaScript file named "script.js" in an HTML document?
Anonymous Quiz
52%
a) <script src="script.js">
23%
b) <script href="script.js">
12%
c) <script link="script.js">
14%
d) <link src="script.js">
❤2👍2
What is the primary goal of supervised learning?
Anonymous Quiz
33%
a) To classify data into predefined categories
28%
b) To identify patterns and relationships in data
11%
c) To learn from unlabeled data
29%
d) To predict an output variable based on input variables
👍13❤4❤🔥2
Which of the following is not a service model in cloud computing?
Anonymous Quiz
19%
a. Infrastructure as a Service (IaaS)
17%
b. Software as a Service (SaaS)
11%
c. Platform as a Service (PaaS)
53%
d. Database as a Service (DBaaS)
🫡9🔥3👍1