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1

Convert: 7 GB = ______ MB.

SHORT Medium
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Explanation: 7 GB = 7 x 1024 MB = 7168 MB.
2

Which command is used to insert a new tuple into a relation?

MCQ Easy
a. ADD INTO
b. INSERT INTO
c. APPEND INTO
d. PUT INTO
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
INSERT INTO
Explanation: INSERT INTO <table> VALUES(...); or INSERT INTO <table>(columns) VALUES(...); is used to insert a tuple.
3

Evaluate the Java relational expression: 3 < 1

MCQ Easy
a. TRUE
b. FALSE
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
FALSE
Explanation: The expression 3 < 1 evaluates to false.
4

The term 'Computer' is derived from which word?

MCQ Easy
a. Compute
b. Compile
c. Communicate
d. Compare
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Compute
Explanation: Computer is derived from 'compute' which means to calculate.
5

Convert: 2 TB = ______ GB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Explanation: 2 TB = 2 x 1024 GB = 2048 GB.
6

If an attribute value is not explicitly specified in an INSERT command and it has no DEFAULT value defined, what value is used?

MCQ Medium
a. Zero
b. An empty string
c. NULL
d. The previous row's value
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
NULL
Explanation: If an attribute is not specified and has no DEFAULT, its value is set to NULL.
7

Evaluate the Java relational expression: 11 == 10

MCQ Easy
a. TRUE
b. FALSE
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
FALSE
Explanation: The expression 11 == 10 evaluates to false.
8

Which characteristic of a computer refers to producing wrong output due to wrong input, commonly called GIGO?

MCQ Medium
a. Speed
b. Accuracy
c. Diligence
d. Versatility
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Accuracy
Explanation: Accuracy: errors are usually due to wrong data/instructions (Garbage In Garbage Out), not the machine.
9

Convert: 3 TB = ______ GB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Explanation: 3 TB = 3 x 1024 GB = 3072 GB.
10

Which command is used to modify the value(s) of one or more tuples in a table?

MCQ Easy
a. MODIFY
b. CHANGE
c. UPDATE
d. ALTER
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
UPDATE
Explanation: UPDATE <table> SET <column>=<value> WHERE <condition>; modifies attribute values of matching tuples.
11

Evaluate the Java relational expression: 8 != 3

MCQ Easy
a. TRUE
b. FALSE
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
TRUE
Explanation: The expression 8 != 3 evaluates to true.
12

Which of the following is an example of secondary storage?

MCQ Easy
a. RAM
b. Cache Memory
c. Pen Drive
d. Registers
Information Technology (802) · Class 11 · Sep 26, 2026
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Pen Drive
Explanation: Pen drives, hard disks, CDs are secondary (non-volatile) storage devices.
13

Convert: 4 TB = ______ GB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Explanation: 4 TB = 4 x 1024 GB = 4096 GB.
14

Which command deletes ALL tuples from a table if the WHERE clause is omitted?

MCQ Easy
a. DROP TABLE
b. DELETE FROM <table>;
c. TRUNCATE ONLY
d. CLEAR TABLE
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
DELETE FROM <table>;
Explanation: DELETE FROM <table>; without a WHERE clause deletes all tuples but keeps the table structure intact.
15

Evaluate the Java relational expression: 30 >= 30

MCQ Easy
a. TRUE
b. FALSE
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
TRUE
Explanation: The expression 30 >= 30 evaluates to true.
16

Which memory is placed between CPU and Primary memory to speed up access?

MCQ Medium
a. ROM
b. Cache Memory
c. Secondary memory
d. Virtual memory
Information Technology (802) · Class 11 · Sep 26, 2026
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Cache Memory
Explanation: Cache memory is a high-speed memory acting as a buffer between CPU and main memory.
17

Convert: 5 TB = ______ GB.

SHORT Easy
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Explanation: 5 TB = 5 x 1024 GB = 5120 GB.
18

What is the basic structure of the SELECT command?

MCQ Easy
a. SELECT <table> FROM <attributes> WHERE <condition>
b. SELECT <attribute list> FROM <table list> WHERE <condition>
c. FROM <table> SELECT <attributes>
d. WHERE <condition> SELECT <attributes> FROM <table>
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
SELECT <attribute list> FROM <table list> WHERE <condition>
Explanation: SELECT <attribute list> FROM <table list> WHERE <condition>; is the basic syntax of a SELECT query.
19

Evaluate the Java relational expression: 2 > 5

MCQ Easy
a. TRUE
b. FALSE
Information Technology (802) · Class 12 · Sep 26, 2026
Show answer
FALSE
Explanation: The expression 2 > 5 evaluates to false.
20

Who is regarded as the person whose idea of digital packet switching influenced networking (unrelated distractor check)?

MCQ Medium
a. Charles Babbage
b. Gary Arlen Kildall
c. Alan Turing
d. Tim Berners-Lee
Information Technology (802) · Class 11 · Sep 26, 2026
Show answer
Gary Arlen Kildall
Explanation: Gary Arlen Kildall is known as the father of the operating system.