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Basic Aptitude Questions and Answers for Freshers

Published On: February 9, 2024

Basic Aptitude Questions and Answers for Freshers


Aptitude questions and answers are one of the prerequisites for any job in general. When it comes to IT-related jobs, aptitude tests take an elaborate objective form, which we will discuss in this blog. Aptitude tests cover a wide range of skills, such as numerical, analytical, problem-solving, logical reasoning, and personality tests in general. But when it comes to IT jobs, aptitude tests can cover skills like programming attitude, algorithm problem-solving, technical knowledge, and more. This blog will hopefully answer your queries about aptitude tests. Check out the SLA Institute to learn about all the different courses and training we offer. 

Aptitude tests in IT jobs

Aptitude tests generally take quite a different approach in IT jobs. The reasons for aptitude tests in IT are listed below:

  • Assessing Technical Skills: Aptitude tests help evaluate if a candidate has the right technical skills for an IT job, like knowledge of programming, problem-solving, and understanding algorithms that are specific to the role.
  • Predicting Success: These tests are designed to guess how well a candidate might do in a job by checking if they can handle the essential tasks. Employers use these tests to see if candidates can adapt and perform well in the technical challenges of the workplace.
  • Fair Evaluation: Aptitude tests provide a fair and unbiased way to assess candidates. It makes sure everyone is evaluated based on their skills and abilities without any unfair judgments.
  • Efficient Screening: When there are lots of people applying for IT jobs, aptitude tests help quickly sort through candidates and find those with the best technical skills. This is important in IT, where having the right technical abilities is a major requirement.
  • Saving Time and Money: Aptitude tests are a cost-effective way to check technical skills early in the hiring process. Employers can identify suitable candidates before spending a lot of time and resources on lengthy interviews.
  • Learning Ability: Aptitude tests can show how quickly a candidate can learn and adapt to new technologies. In the fast-changing IT field, being able to learn quickly is a valuable trait.
  • Tailored Tests: Employers can customize aptitude tests to match the specific needs of different IT jobs. This way, they can focus on testing skills and knowledge that directly relate to the position.
  • Comparison Standard: Aptitude tests create a standard way to compare candidates. Employers can identify the best candidates based on their technical skills and problem-solving abilities.
  • Spotting Potential Issues: Aptitude tests may highlight areas where a candidate needs improvement in their technical knowledge or skills. This information helps employers plan targeted training or development programs.

Components of an IT aptitude test

An IT aptitude test has several components, which are listed below:

Analytical and Logical Reasoning:

These questions aim to gauge the candidate’s capability in analyzing intricate situations, recognizing patterns, and making logical deductions. They might cover challenges related to coding patterns, data analysis, or resolving issues within computer systems.

Numerical Skills:

In the context of IT, questions testing numerical aptitude often involve interpreting numerical data, working with mathematical concepts, and solving problems linked to algorithms or data structures.

Coding Proficiency:

These assessments evaluate a candidate’s coding skills and grasp of programming concepts. Questions can span from basic coding problems to more advanced challenges involving algorithms.

Algorithmic Problem-Solving:

Tasks in this category focus on the candidate’s ability to create efficient algorithms and solve computational problems. This may include optimizing code, understanding algorithmic complexities, or tackling coding challenges.

Technical Understanding:

IT aptitude tests may include questions assessing the candidate’s grasp of fundamental concepts in areas like networking, databases, operating systems, software development methodologies, and IT project management.

System Analysis and Design:

Questions related to system design and analysis assess the candidate’s capability to comprehend and create system architectures, design databases, or evaluate the practicality of IT solutions.

Database Management:

In this category, questions assess the candidate’s knowledge of database systems, SQL queries, and data manipulation. You might be tasked with designing database structures or writing SQL statements.

Recommended read: Database Administration Training in Chennai

Real-World Problem Solving:

Certain aptitude tests present scenarios that IT professionals might encounter in real-world situations. Candidates are then evaluated based on their problem-solving approach and decision-making skills.

Basic aptitude questions and answers for freshers

Question 1: If the sum of two consecutive integers is 35, what are the integers?

Answer: Assume the first integer is x. The second one is (x + 1). Their sum is x + (x + 1) = 35. Solving for x, we find x = 17. Thus, the consecutive integers are 17 and 18.

Question 2: A train travels 150 miles in 3 hours. What is its average speed?

Answer: The average speed of the train is calculated as the total distance divided by the total time. For this case, it’s 150 miles / 3 hours, resulting in an average speed of 50 miles per hour.

Question 3: If the cost of 5 pens is ₹20, what is the cost of 8 pens?

Answer: Let x be the cost of one pen. The total cost of 5 pens is 5x = ₹20. Solving for x, we find x = ₹4. Therefore, the cost of 8 pens is 8 * ₹4 = ₹32.

Question 4: The perimeter of a rectangle is 30 cm. If the length is 8 cm, what is the width?

Answer: The perimeter (P) of a rectangle is given by the formula P = 2(l + w), where l is the length and w is the width. Plugging in the values, we have 30 = 2 (8 + w). Solving for w, we find w = 7 cm.

Question 5: If the product of two numbers is 24 and one of the numbers is 4, what is the other number?

Answer: Let the other number be x. The product is given by 4 * x = 24. By solving for x, we find x = 6.

Question 6: A car travels 240 miles in 4 hours. What is its average speed in miles per hour?

Answer: The average speed is calculated as the total distance divided by the total time. For this case, it’s 240 miles / 4 hours, resulting in an average speed of 60 miles per hour.

Question 7: If the sum of three consecutive odd numbers is 51, what are the numbers?

Answer: Let the three consecutive odd numbers be x, x + 2, and x + 4. Their sum is x + (x + 2) + (x + 4) = 51. By solving for x, we find x = 15. Thus, the numbers are 15, 17, and 19.

Question 8: A square has a perimeter of 20 cm. What is the length of one side?

Answer: The perimeter of a square is given by the formula P = 4s, where s is the length of one side. Plugging in the values, we have 20 = 4s. By solving for s, we find s = 5 cm.

Question 9: If a shirt is on sale for 25% off its original price of ₹40, what is the sale price?

Answer: The discount is 25% of ₹40, which is (25/100) * ₹40 = ₹10. Therefore, the sale price is ₹40 minus ₹10, equaling ₹30.

Question 10: If the average of three numbers is 15 and two of the numbers are 10 and 20, what is the third number?

Answer: Let the third number be x. The average is (10 + 20 + x) / 3 = 15. By solving for x, we find x = 15.

Question 11: What is the fundamental role of an operating system?

Answer: An operating system acts as a mediator between computer hardware and user applications. Its responsibilities include resource management, offering a user interface, and facilitating communication between software and hardware components.

Question 12: Define RAM and its function in a computer system.

Answer: RAM (Random Access Memory) is a type of computer memory that is volatile and used for temporary storage of data required by the CPU for quick access. It enables rapid read and write operations, ensuring swift access to running applications and data.

Question 13: Distinguish between HTTP and HTTPS.

Answer: HTTP (Hypertext Transfer Protocol) is unsecured, whereas HTTPS (Hypertext Transfer Protocol Secure) employs encryption through SSL/TLS to secure communication between a user’s browser and the server. HTTPS is commonly utilized for secure transactions on the internet.

Question 14: Elaborate on the purpose of a firewall.

Answer: A firewall is a network security device responsible for monitoring and controlling incoming and outgoing network traffic. It acts as a barrier between a trusted internal network and untrusted external networks, preventing unauthorized access and safeguarding against cyber threats.

Question 15: What role does a DNS server play?

Answer: DNS (Domain Name System) servers translate human-readable domain names into IP addresses, allowing computers to locate and connect to websites on the internet. They serve as a directory for mapping domain names to corresponding IP addresses.

Question 16: Explain the concept of cloud computing.

Answer: Cloud computing involves delivering computing services, such as storage, processing power, and applications, over the internet. Users can access these services on-demand, eliminating the need for physical infrastructure or on-site servers.

Recommended read: cloud computing interview questions

Question 17: What is the purpose of SQL in the context of databases?

Answer: SQL (Structured Query Language) is used for managing and manipulating relational databases. Using this, users can create, retrieve, update, and delete data in a database. Common operations include SELECT for querying data and INSERT, UPDATE, and DELETE for modifying data. 

Recommended read: MS SQL DBA interview questions and answers 

Question 18: Differentiate between a software update and a software upgrade.

Answer: A software update typically addresses bug fixes, enhances security, or adds minor features to existing software. In contrast, a software upgrade signifies a more substantial version change, often incorporating significant new features, improvements, or alterations to the user interface.

Question 19: What role does version control play in software development?

Answer: Version control systems (e.g., Git) aid in tracking changes to source code during software development. They facilitate collaboration among developers, allow the retrieval of previous versions, and provide a structured approach to managing code changes.

Question 20: How does a Content Delivery Network (CDN) contribute to web infrastructure?

Answer: A CDN comprises a distributed network of servers collaborating to serve web content, including images and videos, tailored to users’ geographical locations. Its primary function is to optimize website performance by minimizing latency and improving loading speeds.


Aptitude questions and answers for freshers are our attempt to help IT graduates and students get an understanding of what kind of questions to expect. These questions are not to be understood as the only questions that will be asked. Candidates are advised to prepare questions on related topics as well, so that a well-versed understanding of the subject matter is possible. 

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