Q: Question 12If a < b and a < c thena is the greatest numbera is the smallest numberb is the greatest numberc is the greatest number

a is the smallest numberReason — If a < b and a < c, it means a is less than both b and c. Therefore, a is the smallest number among a, b, and c.

Question 1

Question 1Name the device used to convert images, printed text or an object into digital image.

Accepted Answer

Scanner

Question 2

Question 2Give any two features of Python.

Accepted Answer

Two features of Python are:Python is an interpreted, interactive, directly executed language with a pre-compiled code.It is free, open-source and portable language having a large repository of libraries.

Question 3

Question 3If the value of a = 10 and b = 15, then a *= b will assign ............... to the variable a.25150100225

Accepted Answer

150Reason — The operator *= is a shorthand for multiplying and assigning a value. So, a *= b means a = a * b. Given a = 10 and b = 15, the expression evaluates to a = 10 * 15, which results in a = 150.

Question 4

Question 4Define Sequence data type in Python? Give two examples.

Accepted Answer

A sequence data type is a data structure that holds an ordered collection of items. These items can be of any type, and the sequence maintains their order.For example — list, string.

Question 5

Question 5The software which is freely available for use but source code may not be available comes under —Open-SourceFirmware SoftwareFreeware SoftwareProprietary Software

Accepted Answer

Freeware SoftwareReason — Freeware software is freely available for use but source code is not available to the public.

Question 6

Question 6Which of the following is a valid variable name?1namena*menamename one

Accepted Answer

nameReason — A valid variable name in Python can only contain letters (a-z, A-Z), digits (0-9), and underscores (_). It cannot start with a digit, contain special characters like *, or include spaces. Therefore, "name" is a valid variable name.

Question 7

Question 7Anu wants to change the width of a column Author in a Table Library from Varchar(20) to Varchar(30). Which command should she use?

Accepted Answer

Anu should use MODIFY clause with ALTER TABLE command to modify the data type size for the Author column from 20 to 30 characters. The command is as follows:ALTER TABLE Library
MODIFY Author VARCHAR(30);

Question 8

Question 8The superimposition of computer-generated perceptual information over the existing physical surrounding is called ............... .

Accepted Answer

Augmented Reality

Question 9

Question 9Seema is collecting data for her science project from science blogs, e-newspapers and various websites this process is known as ............... .Data CapturingData RetrievalData StorageAll of these

Accepted Answer

Data RetrievalReason — Data retrieval involves obtaining and collecting data from various sources, such as science blogs, e-newspapers, and websites.

Question 10

Question 10What will be the correct output of the following code:a, b = '30', '5'
c = a+b
print(c)19305ValueErrorTypeError

Accepted Answer

305Reason — In the above code, a and b are strings as they are enclosed in quotes. When using the + operator with strings, it performs concatenation rather than arithmetic addition. Therefore, a + b results in the concatenation of '30' and '5', producing '305'.

Question 11

Question 11If you add a new column in a table using the Alter Table command, which value is inserted in the new column for the existing rows?

Accepted Answer

If we add a new column in a table using the Alter Table command, the new column will be filled with NULL for all existing rows.

Question 12

Question 12If a < b and a < c thena is the greatest numbera is the smallest numberb is the greatest numberc is the greatest number

Accepted Answer

a is the smallest numberReason — If a < b and a < c, it means a is less than both b and c. Therefore, a is the smallest number among a, b, and c.

Question 13

Question 13Mismatched redundant copies of data is known as Data ............... .DependenceRedundancyInconsistencyIsolation

Accepted Answer

InconsistencyReason — Mismatched redundant copies of data is known as Data Inconsistency.

Question 14

Question 14............... is a subfield of linguistics, Computer Science and Artificial Intelligence concerned with the interaction between computer and human language.

Accepted Answer

NLP (Natural Language Processing)

Question 15

Question 15Convert 1 GB to 1 Kilobytes.

Accepted Answer

1 GB = 1024 megabytes (MB) and 1 MB = 1024 kilobytes (KB).Therefore:1 GB = 1024 MB * 1024 KB/MB = 1,048,576 KBSo, 1 GB is equal to 1,048,576 KB.

Question 16

Question 16Shikha has written the following SQL statement:Select Name, Dept, Salary*12 as "Annual Salary" from EMP;What is "Annual Salary" in the above statement?

Accepted Answer

In the given SQL statement, "Annual Salary" is an alias for the calculated column Salary*12. An alias is a temporary name given to a column or table in an SQL query, making it easier to reference and display the results.

Question 17

Question 17Consider the following dictionaryBook = {1 : "Informatics Practices", 
        2 : "Computer Science ",
        3 : "Information Technology"}Jaya executes statement: 2 in BookAssertion (A): For the above dictionary Book, the output of the statement 2 in Book is True.Reasoning (R): For Dictionary, the ‘in’ and ‘not in’ operators return True or False.Both A and R are true and R is the correct explanation of A.Both A and R are true but R is not the correct explanation of A.A is true but R is false.A is false but R is true.

Accepted Answer

Both A and R are true and R is the correct explanation of A.ExplanationThe statement 2 in Book checks if the key 2 exists in the dictionary Book. Since 2 is a key in the dictionary with the value "Computer Science ", the statement returns True. The in and not in operators in Python dictionaries return True or False depending on whether the specified key exists in the dictionary or not.

Question 18

Question 18For a given listL = [1, 2, 3, 4, 5, 6]the index of element 4 will be:Assertion (A): The index of element 4 will be 3 or -3.Reasoning (R): Python list supports forward and backward indexing with -1 to given to left most and 0 to right most element.Both A and R are true and R is the correct explanation of A.Both A and R are true but R is not the correct explanation of A.A is true but R is false.A is false but R is true.

Accepted Answer

A is true but R is false.ExplanationThe index of element 4 in the list L = [1, 2, 3, 4, 5, 6] is 3. Additionally, the index -3 refers to the element 4 when counting from the end of the list. Python lists support both forward (positive) and backward (negative) indexing with -1 referring to the rightmost element and 0 referring to the leftmost element.

Question 19

Question 19Evaluate the following expression:(i) 12/3+4**2-6/3(ii) not True or False and True

Accepted Answer

(i) 12 / 3 + 4**2 - 6 / 3    = 12 / 3 + 16 - 6 / 3    = 4 + 16 - 2    = 20 - 2    = 18(ii) not True or False and True     = False or False and True     = False or False     = False

Question 20

Question 20What will be the output of the following code?for k in range(-10, 0, 2):  
    print(k)

Accepted Answer

Output-10
-8
-6
-4
-2
ExplanationThe for loop generates a sequence of numbers starting from -10, stopping before 0 (i.e., 2), and incrementing by 2 each time, resulting in the sequence -10, -8, -6, -4, -2.

Practice Paper

Section A 1 Mark Each

Section B 2 Marks Each

Section C 3 Marks Each

Section D 4 Marks Each

Section E 5 Marks Each