MCA MCQ Test based on AUAT 2024 2-Year MCA (P26) Paper by Aliah University. Free Live Quiz Test For You!

Wrong answer. Follow the hints...

Solution:

To determine what day it will be 61 days from today (Wednesday), you can follow these steps:

Calculate the remainder when 61 is divided by 7 (since there are 7 days in a week).

61 ÷ 7 = 8 R 5

So, the remainder is 5.

Add the remainder to the current day (Wednesday):

0 days from Wednesday is Wednesday.
1 day from Wednesday is Thursday.
2 days from Wednesday is Friday.
3 days from Wednesday is Saturday.
4 days from Wednesday is Sunday.
5 days from Wednesday is Monday.

Therefore, 61 days from today (Wednesday) will be Monday.

Wrong. Try looking at the physical nature of the activities and see if one stands out as different from the others.

That’s not quite right. Remember to check if the number is divisible by 7 first and then verify if adding 10 makes it divisible by 3.

Solution:

The correct answer is 9989.

9989/7 = 1427

When 10 is added to the four-digit number-

9989 + 10 = 9999

So, 9999 / 3 = 3333

That’s not quite right. Remember, the Highest Common Factor (H.C.F.) should be a divisor of the L.C.M. of 120 and fit the criteria for the numbers’ product relationship.

Solution:

Understanding the problem -

• LCM (Least Common Multiple) is the smallest number that is a multiple of all the given numbers.
• HCF (Highest Common Factor) is the largest number that divides all the given numbers exactly.

Key point: The HCF of a set of numbers must be a factor of their LCM.

Analyzing the Options

• 120 is the LCM.

• We need to find which option cannot be a factor of 120.

• 8 is a factor of 120 (120 ÷ 8 = 15)

• 12 is a factor of 120 (120 ÷ 12 = 10)

• 24 is a factor of 120 (120 ÷ 24 = 5)

• 35 is not a factor of 120.

Conclusion

Therefore, 35 cannot be the HCF of the three numbers.

Reason: The HCF must be a factor of the LCM, and 35 is not a factor of 120.

That's not quite right. Remember, the fraction should reflect the repeating pattern of "39" in the decimal. Try converting the repeating decimal again and check your calculation.

Solution:

1. Let $x$ be the repeating decimal:

   x=0.393939...

2. Multiply x by 100 to shift the decimal point two places to the right:

   100x = 39.393939...

3. Subtract the original $x$ from this new equation to eliminate the repeating part:

   100x − x = 39.393939... − 0.393939...
   99x = 39

4. Solve for $x$:

   x = 39/99​​

So, 0.393939... is equivalent to the fraction 39/99​.

Wrong answer. Follow the hints.

Solution:

List of Odd Numbers: The odd numbers from 1 to 100 are: 1, 3, 5, ..., 99.

Count of Odd Numbers: These numbers form an arithmetic sequence where the first term is 1 and the common difference is 2. The last term is 99. The number of terms can be found using the formula for the 𝑛 n-th term of an arithmetic sequence:

an ​= a1​ + (n−1) d

Setting an = 99, a1 = 1, and d = d:

99 = 1 + (n − 1) × 2

Solving for $n$:

$$99=1+2n-2$$

99 = 2n − 1

2n = 100

$$n=50$$

There are 50 odd numbers.

The sum of Odd Numbers: The sum of the first $n$ odd numbers is given by n^2. Therefore: Sum = 50^2  = 2500

The average is the sum divided by the number of terms:

Average = 2500 / 50 = 50

So the correct answer is 50.

That's not quite right. Try looking at the differences between consecutive numbers in the sequence to see if you can identify the pattern.

Solution:

Here (8, 7, 11, 12, 14, 17, 17, 22, ?) two distinct series are given alternately.

1. Odd-positioned numbers: 8, 11, 14, 17, ?
2. Even-positioned numbers: 7, 12, 17, 22

Odd-positioned Series Analysis:

• 11 - 8 = 3
• 14 - 11 = 3
• 17 - 14 = 3
• The pattern is adding 3 each time.

So, the next number in the odd-positioned series would be:

• 17 + 3 = 20

Even-positioned Series Analysis:

• 12 - 7 = 5
• 17 - 12 = 5
• 22 - 17 = 5
• The pattern is adding 5 each time.

Final Answer:

For the next number in the odd-positioned series (which is the missing number in the sequence), it should be 20.

Answer: The correct missing number is 20.

It looks like your answer might be incorrect. Check if there is a consistent pattern or relationship between the numbers in each pair. One of the pairs does not fit this pattern.

Solution:

To find the different pair, look for a pattern in the relationships between the numbers in each pair. In this case, the pattern is that the second number in each pair is the result of multiplying the first number by a factor and then adding or subtracting a constant.

Let's examine each pair:

1. 15 : 46
   Relationship: 15×3−1=46
2. 12 : 37
   Relationship: 12×3+1=37
3. 9 : 28
   Relationship: 9×3+1=28
4. 8 : 33
   Relationship: 8×4+1=33

All pairs except 8 : 33 follow the pattern where the second number is calculated by multiplying the first number by 3 and then adding or subtracting 1. The pair 8 : 33 does not fit this pattern.

Answer:  8 : 33

That's not quite right. Remember that Raghu's rank is twice that of Paul's, and there are 10 students ranked worse than Raghu. Try solving it again with this in mind.

Solution:

There are 50 students in total.

If there are 10 students ranked worse than Raghu, then Raghu is ranked 50 - 10 = 40th.

Since Raghu’s rank is twice that of Paul’s, if Raghu is 40th, Paul’s rank would be 40 ÷ 2 = 20th.

Answer: 20th

That's not correct. Follow the hints.

Solution:

Let Meena's current age be 3x and Mukta's current age be 5x.

After 9 years, Meena's age will be 3x+9 and Mukta's age will be 5x+9.

According to the problem, the new ratio of their ages will be 3:4.

So, set up the equation: 3x + 9 / 5x + 9 = 3 / 4​

Cross-multiply and solve for $x$:

4 (3x + 9) = 3 (5x + 9)

12x + 36 = 15x + 27

36 − 27 = 15x − 12x

9 = 3x

x = 3

Mukta's current age is $=15$ years.

That’s not correct. Make sure to verify the skills of each person and check who meets the criteria of being good in Physics, History, and Mathematics but not in Computer Science.

Answer: Nisha

That's not correct. Review the list of people and check each individual's strengths in the three subjects: Computer Science, History, and Dramatics.

Answer

The correct answer is Shobha.

Let's review the subjects each person is good at. We need to find someone who excels in Physics, Dramatics, and Computer Science simultaneously. Check each person’s list of subjects carefully to determine the correct answer.

Answer

The correct answer is Madhu.

Not quite right. Remember to verify each person’s skills across all three subjects: Physics, History, and Dramatics. Check each individual’s listed skills again.

Answer

The correct answer is Poonam.

That's not correct. Double-check the list of subjects each person is good at and see if any individual covers all four: History, Physics, Computer Science, and Mathematics.

Answer

The correct answer is Anjali.

Try rechecking the arrangement using the clues provided. Remember, J is between L and F, and G is between I and F. Use this information to correctly determine who is to the immediate left of F.

Solution Steps (Briefly):

1. Place J between L and F based on the clue.
2. Place G between I and F.
3. Determine H's position based on the clue that H is second to the left of J.
4. Place F opposite E, and ensure a lady is seated between F and I.
5. Use the remaining clues to finalize the seating arrangement.

The answer is H.

That’s not correct. Please re-evaluate the seating arrangement clues and positions of each person around the table.

Solution Steps:

1. Determine the positions from the clues:
   • J is between L and F.
   • G is between I and F.
   • H, a lady, is second to the left of J.
   • F is opposite E.
   • A lady is seated between F and I.
2. Place F and E first since F is opposite E.
   Example configuration (in terms of relative positions):
   • F opposite E.
   • G, I, and H's positions need to be determined based on their relative positions.
3. Using the clues, position J, L, and H:
   • J between L and F.
   • H second to the left of J.
   • Place the lady between F and I.
4. Complete the arrangement to satisfy all conditions.

After arranging, you'll find the exact seating positions.

Answer: Based on the correct arrangement, K is the person seated between E and H.

That's not quite right. Review the clues and recheck the seating arrangement to identify the three ladies correctly.

Step-by-Step Solution

1. J is between L and F: Place J between L and F.
2. G is between I and F: Place G between I and F.
3. H is a lady and is second to the left of J: Place H based on this clue.
4. F, a male member, is seated opposite E, a lady member: Place F and E opposite each other.
5. A lady member is between F and I: Confirm the arrangement and position.

After placing all members correctly, identify the ladies from the seating arrangement.

That's not quite right. Try reviewing the clues again and double-check the positions of each person. Remember to place people based on their relative positions and the number of people between them.

Solution (Brief Steps):

1. Place J, L, and F:
   • J is between L and F.
   • G is between I and F.
2. Place H, F, and E:
   • H is second to the left of J.
   • F is opposite E.
3. Place I and F:
   • There is a lady between F and I.
4. Complete the seating arrangement:
   • Based on the clues and logical placement, you will find that there are 2 people seated between K and F.

Answer: 2

Your answer is incorrect. Review the seating arrangement clues carefully. Ensure you correctly place all individuals according to the given clues and then determine the genders of J and K.

Answer: B. J is female, K is male

That's not correct.

Remember, an operating system is responsible for managing the hardware and software resources on a computer. Let's review each option:

• Windows, Linux, and MacOS are all operating systems that perform these tasks.
• Python, on the other hand, is a programming language used to write software.

Incorrect.

Let's break it down:

• Hard Drive: This is where data is stored, not processed.
• Random Access Memory (RAM): This temporarily holds data and instructions, but it does not perform processing.
• Graphics Processing Unit (GPU): This specializes in handling graphics and rendering images but is not responsible for most general processing tasks.

Incorrect. Let’s break it down:

1. The "Index Page" refers to a listing of contents.
2. The "Main Page" can describe a significant page, but it's not the standard term.
3. The "Landing Page" is used for specific marketing purposes and isn't necessarily the first page of a website.
4. The "Home Page" is the primary page that serves as the starting point of a website.

The correct answer is Home Page.

If you selected A. Input devices, C. Memory, or D. Storage, let's clarify why these aren't correct.

• Input devices are used to send data to the computer, like a keyboard or mouse, but they don't produce output.
• Memory refers to where data is temporarily stored while the computer is processing it, not where output is produced.
• Storage is where data is permanently saved, but it doesn't generate the output you see on the screen.

The correct component responsible for producing output from the computer's processing is the output device.

That's not correct. Let's go through the options briefly:

• A firewall is used to protect a network by controlling incoming and outgoing traffic.
• Antivirus software protects your system from malicious software.
• Encryption secures data by converting it into a coded format.
• Passwords are the primary tool used to control access to a computer system.

Not quite!

To swap two variables, you need a temporary space to hold one of the values while you exchange them. Try thinking about how you can perform the swap with minimal additional space.

Answer: 1

Incorrect.

Remember that n++ uses the current value of n before incrementing, while ++n increments n before using its value. Reconsider the evaluation order in the printf function.

Solution

When n is 3, the statement printf("%d %d", n++, ++n); involves both n++ and ++n being evaluated.

1. n++ means the current value of n (which is 3) is used, and then n is incremented by 1.
2. ++n means n is incremented first (which makes it 4 initially from the n++), and then the incremented value is used.

However, the order of evaluation in printf is not guaranteed to be left-to-right or right-to-left. It can vary between different compilers or execution contexts. Because of this, the exact output can differ, leading to the answer being implementation dependent.

Incorrect.

The %c format specifier in C is used to print the character associated with a given ASCII value. The integer 100 corresponds to a specific character in the ASCII table. Please check the ASCII table to find out which character corresponds to 100 and try again.

Correct Answer: prints the ASCII equivalent of 100

Not quite!

Recall that the printf function in C prints a string and returns the number of characters printed. Consider how this return value is used by the print function and what the %d format specifier expects.

Answer: results in a syntax error

Incorrect.

Let's review the options again. Keywords are reserved words that have specific meanings and uses in the C language, such as control statements and data types. Consider which of these options are used as keywords and which are not.

Answer: IF

If you chose A, C, or D:
To understand the behavior of a for loop without a condition, consider how loops generally function and what role the condition plays. Without a condition, the loop must still execute according to the rules of the language.

Answer: it is assumed to be present and taken to be true

Incorrect.

Remember that in pointer arithmetic, adding 1 to a pointer doesn't simply add 1 to the address but rather increments the pointer to the next element of the array, considering the size of the element.

If you selected an incorrect answer, review the structure of a basic C program and note that there is a specific function that is always required for the program to run.

Solution:

In C programming, every program must have at least one function. The essential function is main(), where the execution of the program begins. Here is a brief explanation for each option:

• A. must contain at least one function: Correct. Every C program must have a main function as the entry point.
• B. need not contain any function: Incorrect. A C program cannot run without the main function.
• C. needs input data: Incorrect. While input data might be necessary for certain programs, it is not a required element for every C program.
• D. None of the above: Incorrect, since option A is correct.

Remember that int **a; is a valid way to declare a variable in C/C++, though it might seem confusing. The declaration is legal, and it correctly follows the syntax rules for declaring a pointer to a pointer.

Answer: is syntactically and semantically correct

Not quite!

Remember, &x[i] is a pointer to the ith element of the array, which means it gives you the memory address where this element is stored. Consider which option correctly represents this address.

Answer: x + i

That’s not correct.

UNIX was actually developed at Bell Labs, which is a well-known research facility in the field of computing and telecommunications.

That's not quite right.

The chmod command is not used for copying files, changing ownership, or displaying directories. It specifically adjusts the permissions associated with files or directories.

Answer: It changes the permissions of a file or directory

This command does not show hidden files. To list all files, including hidden ones, you should use the -a option with the ls command.

Answer: ls -a

That’s not quite right.

Remember, the file type that stores data as readable characters (like numbers or letters) is different from those that store data in binary or other formats. Review the types of files and their characteristics to find the correct one.

Answer: text file

That's not quite right.

Remember that ../ takes you up one level in the directory structure. Try to think about what happens when you use ../ twice in a row from the current directory.

Answer: It changes the current directory to the parent directory of the current directory.

Let's break it down: To find the depth of a complete binary tree with $n$ nodes, you should use the binary logarithm of $1$, subtract 1, and then check the provided options.

Answer: log⁡2(n+1)−1

That's not quite right.

To list nodes in ascending order in a binary search tree, you should use a traversal that visits the left subtree first, then the node itself, and then the right subtree. This is known as in-order traversal.

Answer: In-order

That’s not quite right.

Try to think about how each new card is placed into the already arranged cards in a specific order.

Answer: insertion sort

That's not quite right.

Remember, the algorithm you're looking for is one that can compute the shortest paths between all pairs of nodes in a graph. Dijkstra's and Prim's algorithms are more focused on single-source shortest paths and minimum spanning trees, respectively.

Answer: Floyd's algorithm

That's not quite right.

The quick sort algorithm uses a method that involves breaking down the problem into smaller, simpler subproblems. Try to think about how the algorithm processes the data and solves it in parts.

Answer: Divide and Conquer

Not quite! Let’s break it down:

• A Queue uses FIFO (First In, First Out), where the first item added is the first one to be removed.
• A Linked List is a collection of nodes with no specific LIFO or FIFO order.
• A Tree is a hierarchical structure where nodes are connected in a parent-child relationship.

The data structure you’re looking for allows you to access the most recently added item first.

You might be overestimating the time required to insert an element. When adding an element at the front of a queue implemented with a linked list, you don’t need to traverse the entire list. Revisit how insertion works with linked lists and reconsider the time complexity.

Answer: O(n)

You're almost there! Remember, HTML is used for creating and organizing content on web pages. The correct answer involves the idea of marking up text and language related to this process.

Answer: Hyper Text Markup Language

Not quite!

Remember that CSS is used to define the visual presentation of web pages. The correct term involves "Cascading" which describes how styles are applied in a hierarchy.

Answer: Cascading Style Sheets

This is not the correct tag for creating hyperlinks. Remember, the tag you need is specifically designed for making clickable links and uses an attribute to specify the destination URL.

Answer: <a> (anchor tag)

Your answer is not correct.

Remember, a page fault specifically refers to the situation when the required data is not available in the main memory.

Answer: the page is not in main memory

That's not quite right.

Semaphores are specifically used to manage the way processes interact with each other and access shared resources. Consider the roles of semaphores in managing access and coordination between processes.

Answer: process synchronization

That's not correct.

Remember, context switching happens when a process is paused and another one is started. Consider which scheduling method allows processes to run uninterrupted.

Answer: Shortest Job First Scheduling

That's not correct.

To find the deadlock-avoidance algorithm, think about an algorithm that makes decisions based on the current state of the system to avoid potential deadlocks. Revisit the options and see which one is designed to handle resource allocation safely to prevent deadlocks.

Answer: Banker's algorithm

You might want to review how disk scheduling works. The correct answer is about managing the order of requests rather than physical locations or individual disks.

Answer: the order in which disk access requests must be served

That's not quite right. Remember, for each position in the string, you have 2 choices (0 or 1). To find the total number of possible strings, think about how many choices you have for each of the $n$ positions in the string.

Answer: 2^n

The correct number of possible strings of length 'n' formed from {0, 1} is found by considering that each position in the string can be either 0 or 1. This means you have two choices (0 or 1) for each position in the string of length 'n'. Re-evaluate your answer based on this principle.

Answer: The correct answer is a(a+b)a.

Here's why:

• For each position in the string of length 'n', you have 2 choices (either 0 or 1).
• Thus, the total number of different strings of length 'n' is given by 2n2^n2n, which matches the pattern (a+b)*a.

Incorrect. Let's go through each option:

1. Pushdown Automaton: This automaton uses a stack and recognizes context-free languages, which are more complex than regular languages.
2. Finite Automaton: This is the correct answer. Finite automata are used to recognize regular languages.
3. Turing Machine: Turing machines recognize recursively enumerable languages, which include all regular languages but are much more powerful and complex.
4. Context-Free Grammar: This generates context-free languages, which are also more complex than regular languages.

Answer: Finite Automaton

Incorrect. Let's break it down:

• The stack in a pushdown automaton is not used to store the input string. The input string is processed sequentially, but it's not stored in the stack.
• The stack is also not used to count the number of states; states are part of the control unit of the automaton.
• Finally, the stack doesn't store the output string; the output of a pushdown automaton is typically about whether it accepts or rejects the input string based on the stack's final state.

The correct role of the stack is to manage symbols necessary for recognizing context-free languages. Try again!

Answer: To keep track of symbols for managing context-free languages

Incorrect. Think about the hierarchy of automata and which one can simulate the others. Let's go through the capabilities step by step:

• Finite Automaton (A) can recognize regular languages.
• Pushdown Automaton (B) can recognize context-free languages, which include regular languages and more.
• Linear Bounded Automaton (C) can recognize context-sensitive languages, which include context-free and regular languages.
• Turing Machine (D) can recognize recursively enumerable languages, which include all languages recognized by the previous automata.

Incorrect.

To find the correct binary equivalent of 0.4375, multiply the fractional part by 2 and note down the integer part at each step. Continue until the fractional part is 0 or you reach a repeating pattern.

Solution:

To convert 0.4375 to binary:

1. Multiply 0.4375 by 2:

   0.4375 × 2 = 0.875 (integer part: 0)The integer part is 0.

2. Multiply the fractional part (0.875) by 2:

   0.875 × 2 = 1.75 (integer part: 1)The integer part is 1.

3. Multiply the fractional part (0.75) by 2:

   0.75 × 2 = 1.5 (integer part: 1)The integer part is 1.

4. Multiply the fractional part (0.5) by 2:

   0.5 × 2 = 1.0 (integer part: 1)The integer part is 1 and the fractional part is now 0, so the process stops here.

Combining the integer parts collected:

0.4375⌄10 = 0.0111⌄2​

Therefore, the correct answer is: 0.0111

Incorrect. To simplify X+X′Y, use Boolean algebra rules step by step. Here’s the detailed solution:

1. Use the distributive law: X+X′Y = X+Y(X′)
2. Apply the absorption law: X+Y(X′) = X+Y

The correct answer is obtained by recognizing that the expression simplifies directly using these steps.

Incorrect. Let's review the options:

• A. A key that uniquely identifies a column: This describes something else, like a unique constraint, but not a primary key.
• C. A key that can have null values: A primary key cannot have null values because it must uniquely identify each row.
• D. A key that is used to encrypt data: Encryption is not related to the primary key's purpose.

The correct answer focuses on uniquely identifying each row in a table.

Incorrect. Let's review the normal forms to understand where transitive dependencies are addressed:

1. First Normal Form (1NF): Ensures that the table has only atomic (indivisible) values.
2. Second Normal Form (2NF): Ensures that the table is in 1NF and all non-key attributes are fully functionally dependent on the primary key.
3. Third Normal Form (3NF): Ensures that the table is in 2NF and there are no transitive dependencies, meaning all non-key attributes depend directly on the primary key.
4. Boyce-Codd Normal Form (BCNF): A stricter version of 3NF where every determinant is a candidate key.

Answer: Third Normal Form (3NF)

Incorrect. Let's review the options step by step:

• RETRIEVE is not a valid SQL command.
• GET is also not an SQL command used to fetch data.
• FETCH is used in some contexts but not as a standalone command to retrieve data in SQL.
• The correct SQL command to retrieve data from a database is SELECT.

The eigenvalues of a diagonal matrix are not found by summing or multiplying the diagonal entries. Instead, each eigenvalue is simply one of the entries on the diagonal of the matrix.

Answer: the entries on the diagonal

It looks like there might be some confusion. To find the determinant of an identity matrix, consider that all its diagonal elements are 1 and all off-diagonal elements are 0. The determinant is the product of the diagonal elements, which in this case are all 1s.

Answer: 1

Not quite. The condition you're thinking of may be related to specific properties of the matrices but doesn’t necessarily ensure that AB equals BA.

Solution: To solve this, recognize that the condition needed for matrices A and B to satisfy AB = BA is when A and B commute with each other. This means that for any two matrices, if AB = BA, then they are said to commute. Other properties, such as invertibility, size, or orthogonality, do not guarantee commutativity.

That’s not quite right. To check if a set is closed under an operation, you need to ensure that performing the operation on any two natural numbers always yields another natural number. Review how each operation affects the natural numbers and try again!

Solving the Question Step-by-Step:

1. Addition: Adding any two natural numbers always gives another natural number (e.g., 2 + 3 = 5).
2. Subtraction: Subtracting two natural numbers does not always result in a natural number (e.g., 3 - 5 = -2, which is not a natural number).
3. Multiplication: Multiplying any two natural numbers always results in another natural number (e.g., 2 × 3 = 6).
4. Exponentiation: Raising a natural number to the power of another natural number always results in another natural number (e.g., 2^3 = 8).

Answer: Subtraction

That's not quite right. To solve the problem, simplify A∩(A∩B)^c by first understanding the complement of the intersection and then applying the intersection with set $A$.

Answer: A∩B^c.

The Islamic financial system aims to create fairness and equity by involving both parties in sharing both the risks and returns, not just one or the other. Review the principles of Islamic finance to understand how it addresses both aspects.

Answer: sharing return and sharing risk

This is not the preferred practice according to Islamic tradition. Try to remember the recommended order based on Sunnah.

Answer: right leg first

The expectation from performing good deeds is not always about immediate praise or material rewards. Think about what deeper, more meaningful rewards might be expected from such actions.

The correct answer is related to the concept of continuous water flow, not stopping or starting.

Answer: Stop-Stop

This answer is not correct.

Remember, Azan is only called for the regular daily prayers. Consider the prayers that are unique and do not have a call to prayer.

Answer: Eid-ul-Adha and Janaza

That’s not the phrase commonly used for expressing thanks in Islam. Consider the option that specifically conveys gratitude or appreciation.

You might want to reconsider if prayers have to be in a specific language or if God can understand all languages. Remember, God’s understanding is not limited to any one language.

Answer: any language

That’s not quite right.

Consider the idea that human dignity is about treating everyone equally, regardless of their gender or wealth. Think again about the universal respect everyone deserves.

Answer: All are equal

Incorrect.

Daily prayers are not just about personal convenience but are considered essential and mandatory for believers in all situations.

Answer: obligatory in all situations

That's not quite right.

Remember, while all messengers are a type of prophet, not all prophets are messengers. Think about the roles and their specific definitions.

Answer: All messengers are prophets but all prophets are not messengers

That’s not correct.

The birth of Prophet Muhammad (PBUH) is celebrated in a specific month of the Islamic calendar. Try to remember the significant month associated with his birth.

Answer: Rabi al-Awwal

Incorrect.

The youngest daughter of Prophet Muhammad (PBUH) is known for her deep affection for her father and her significant role in early Islamic history.

Answer: Fatima

Incorrect. Let’s break it down:

• Hazrat Ali (A): He was among the first followers of Islam, so he was never an enemy of Islam.
• Hazrat Usman (C): He was also an early convert and not known to be an enemy of Islam.
• Abdur Rahman (D): He was a companion but not known for being a staunch enemy initially. Therefore, the correct answer is Hazrat Umar (B), who was initially an opponent of Islam but converted and became a strong supporter.

Answer: Hazrat Umar

Incorrect.

The Hijri calendar, like the Gregorian calendar, has 12 months in a year. It is a lunar calendar, so the months are based on the cycles of the moon.

Answer: 12

Incorrect!

Maintaining greenery is an important aspect in Islam. Let's review the Islamic teachings on nature and the environment:

1. Islam emphasizes stewardship of the Earth.
2. The Prophet Muhammad (PBUH) encouraged planting trees and maintaining greenery.
3. Islam views taking care of the environment as a form of worship.

Answer: encouraged

Incorrect.

When fasting, especially in Islamic traditions, there are specific guidelines about abstaining from food and drink. Let's go through the options to understand why the chosen answer is incorrect:

• A. It is permitted to drink little water while fasting: Drinking water, even a little, breaks the fast.
• C. It is permitted to drink juice while fasting: Consuming juice is not allowed as it breaks the fast.
• D. It is permitted to eat dates while fasting: Eating dates is typically done to break the fast at sunset, not during the fasting period.

Answer: No, it is not permitted to eat or drink anything while fasting

Incorrect.

The hijab is not related to Islamic dress for men, prayer, or dietary guidelines. It specifically refers to something else. Let's review the options step by step:

1. The hijab is not an Islamic dress for men (Option A).
2. The hijab is not an Islamic prayer (Option C).
3. The hijab is not related to Islamic dietary guidelines (Option D). This leaves us with the correct option.

Answer: Islamic dress for women

Incorrect.

To solve this question, recall the common Arabic terms for different spiritual beings:

• Messengers (Rusul) refers to prophets.
• Arat is not a commonly known term for angels.
• Jinnat refers to supernatural beings created from smokeless fire. The correct term for angels is Malaikah.

Incorrect.

Let’s solve it step by step:

1. Christianity Era: While it seems related to a religious context, "CE" is used as a more neutral term than "AD".
2. Circular Era: This option doesn’t relate to historical timekeeping.
3. Common Era: This term is a secular way to denote the same era as AD.
4. Cultural Era: This option doesn't relate to the way years are commonly designated.

The correct answer is "Common Era," which is a secular term equivalent to Anno Domini (AD).

Incorrect.

Let's analyze the options to understand why it's not the right choice:

• A. Pride and arrogance: These traits are discouraged in Islam as they go against the principles of humility and submission to God.
• B. Boastfulness and superiority: Boastfulness and feeling superior to others are not characteristics promoted in Islam, as they conflict with the value of humility.
• D. None of the above: This option implies that none of the listed characteristics are correct, which is not true. One of the options does correctly describe the fundamental characteristics of a Muslim.

Answer: Piety and humility

That's not quite right.

Remember, “at sixes and sevens” is an idiom used to describe something being disorganized or chaotic. Think about which option best fits this description.

Answer: in disorder or confusion

Your choice does not fit the context of the sentence. To solve this, consider what emotion might lead someone to make reparations and how they might do so by benefiting the church.

Answer: remorse, atone

That's not quite right.

Remember, the term you're looking for describes areas that are far from major cities and rivers, often isolated.

Answer: hinterland

If you chose incorrectly, remember that the term for someone who drives a car as a job is not related to being orderly, a janitor, or an amateur. Think of a specific term used for someone hired to drive others.

Answer: chauffeur

That's not quite right.

Remember, "credit" is typically followed by "for" to indicate what you are giving credit for. Additionally, when talking about boasting, the correct preposition often shows the relationship to what is being boasted about.

Answer: for, of

Incorrect.

Let's break it down:

• Joule measures energy or work, not power.
• Newton-second is a unit of momentum, not power.
• Joule-second combines energy and time in a way that doesn't fit the definition of power.

The correct SI unit for measuring power is the one that represents work done per unit time.

Answer: Watt

That’s not correct.

To find the right answer, remember that certain vitamins are essential for different bodily functions. The vitamin responsible for blood clotting is vital for preventing excessive bleeding.

Answer: Vitamin-K

The symbol "Cu" stands for a specific element on the periodic table. To find the correct answer, look at each option and identify which one is represented by "Cu." Remember, "Cu" is derived from the Latin name for the element.

Answer: Copper

The correct answer is not the option you selected.

To find the ocean between Africa and Australia, consider the oceans that are located in the southern and eastern parts of the world.

Answer: Indian

That’s not quite right.

To find the correct number, review the Fundamental Duties listed in the Indian Constitution. They are outlined in a specific section. You might want to double-check your source for accuracy.

Answer: 10 (actually 11)