Infosys is the dream company of many aspiring engineering freshers. This article covers the most important Infosys interview questions asked in the technical and HR interviews. Practicing these and similar questions will ensure your selection into the organization.
About Infosys
Infosys is a multinational corporation headquartered in Bangalore, Karnataka, India. It provides tech-based business solutions to its clients across 46 countries. Its universal banking solution, Finacle, is famous worldwide for its versatility and range of products.
Infosys Recruitment Process
Infosys hires around 20-30 % of candidates that pass its final HR round. To go through the Infosys Recruitment Process, you have to meet the bare minimum eligibility:
- Grade point average of 60% or above in Class 10th and 12th
- More than 6 CGPA in graduation
Infosys Interview Process
1. Online Assessment Test
The candidates qualifying the basic eligibility to appear for the first round, which has the following sections:
- Logical Analytical Reasoning – This includes data sufficiency, visual reasoning, syllogism, coding-decoding, and analogy. (Difficulty level – Easy to Moderate)
- Quantitative Aptitude – Permutations and combinations, Time and Speed, Probability, Percentages, Ratio and Proportion and related topics (Difficulty level – Moderate to Hard)
- Verbal Ability – Paragraph completion, synonyms-antonyms, para-jumbles, sentence completion, etc. (Difficulty Level – Easy to Moderate)
2. Technical Round
In the technical round, candidates are asked questions based on their resumes and the role they applied for. You are expected to have a sound knowledge of:
Also, expect questions on past professional/internship experiences and your role and contribution to them.
3. HR Interview Round
The HR interview round assesses your overall personality and suitability for the role. You can expect questions on your skills, hobbies, reasons for applying for Infosys, educational background and expectations from your position.
Can I Join Infosys Without a Degree?
Infosys requires a three- or four-year relevant Bachelor’s degree, much like most MNCs do. Nevertheless, Infosys has begun hiring people without a degree who possess appropriate experience and certification. In IT industry, Infosys would accept you as you own the necessary skill set.
What Is InfyTQ Certification?
The InfyTQ certification exam measures how well you are equipped for the workplace by looking at your knowledge of databases and coding. The finest part of InfyTQ is that if you do well on the test, Infosys will directly interview you for a position.
Have a look at the following Infosys interview questions for reference.
After going through the following questions, there is undoubtedly success and a platform for you to learn and grow.
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Infosys Interview Questions for Freshers and Experienced
The initial questions of an interview are intended to make you comfortable with the interviewers. The questions incline more toward what they have learned and acquired during their graduation for freshers. Experienced applicants will be expected to have some industry insights into different organizational models and data structures. They should also have informed opinions on technical matters based on their experience.
Infosys Interview Questions and Answers on OOPs
1. What is an Object in OOPs?
An object is an instance or subset of the class. It is attributable to a physical operation such as individual attributes, properties and behavior. It occupies space in the memory and has member functions defined in a class.
2. What is a Class in OOPs?
A class gives the object’s outline and has a fixed data type defined by the user. Member functions, variables, constants and other functionality are designated within a class. It does not use any memory during run time. A class can exist without an object, but an object cannot exist outside the class.
3. What Are The Basic OOPs Principles?
OOPs have four major basic principles:
Abstraction: Abstraction refers to the representation of essential properties without revealing the entire framework. Problems are solved at the ‘abstract’ or interface level.
Encapsulation: Data and the corresponding code are ‘encapsulated’, that is, combined in a single unit called a class.
Inheritance: The existing class properties are ‘inherited’ by the new child class. For example, if there are two separate child classes such as ‘Dog’ and ‘Cat’, they can inherit properties such as ‘mammals’ and ‘pets’ from the parent ‘Animal’ class.
Polymorphism: It allows cross-movement between parent and child classes. It is implemented using overriding and overloading.
Also Read: Difference Between Encapsulation and Abstraction 💻
4. How is method overloading different from method overriding?
Overloading |
Overriding |
Two or more methods in the same class have the same name but different parameters. |
The name and parameters are the same in super class and child class. |
Compile-time polymorphism |
Run-time polymorphism |
If overloading breaks, the error will be highlighted during compile-time and can be easily fixed. |
Causes serious problems on breaking as the error will be visible during run-time |
5. What is a constructor?
Constructors are used to initialize the data members of a new object. It prepares the object for run-time operation using keywords and member variables.
6. Explain OOPs in Brief.
Object-oriented programming allows programmers to express real-world situations using objects. An object is any entity that has states and behaviors. Shapes reflect an entity’s qualities or data, whereas procedures describe an item’s behaviors. Learners, employees, books, and other things are objects, and these objects communicate with each other by sending messages. A class serves as a blueprint for creating objects. To create objects, a type is necessary. For example, to create an Employee object, there must be an Employee class.
7. Give Reason. Why should we use OOPs?
By packaging together data states and code to modify those data states in OOP coding, you can keep the intricacies private (Considering an analogy of a car, you can only see the steering of the vehicle while driving, the circuitry behind it is hidden from you). OOP architecture consequently results in code that is adaptable, versatile, and expressive. As a result, it is particularly beneficial for creating more extensive programmes. You can use classes and objects to implement OOP in your programming. All states and capacities of the category to which they pertain will be present in the things you generate.
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8. What characterizes OOPs as a whole?
Following are some of the critical characteristics of OOPs:
- OOPS allows you to specify the variables of each data item by combining the code into a single unit. Encapsulation is the process of grouping information into a single unit.
- One can standardize your objects and make your programme easier to use by utilizing classes. We refer to this as an abstraction.
- More code can be reused when a class can inherit traits and behaviors from other courses.
- With the aid of polymorphism, numerous objects can be produced from a single, flexible class of code.
9. Mention some limitations of OOPs.
The following are some typical OOPs limitations:
- More prominent than other programmes in terms of size.
- It was labor-intensive to create, and it ran slower than other programmes.
- For some problems, it is improper.
- It needs some adjustment.
Infosys Interview Questions and Answers on C, C++
1. Explain some mportant differences between C and C++
C |
C++ |
C is a procedural language and does not have concepts of classes, objects and other principles related to OOPs. |
C++ is an Object-Oriented language (OOPs) and contains all its characteristics and principles such as inheritance, encapsulation and polymorphism. |
C cannot run C++ code. |
C++ can run almost every C code. |
Does not support operator and function overloading. |
Operator and function overloading are easily implementable. |
Main function can be called from any other function. |
Main function cannot be called from other functions. |
2. What is the difference between C++ and Java? Which one do you think is better and why?
C++ was introduced for systems and applications programming, while Java is used as an interpreter of printing systems and supports network computing. Java is platform-independent, which makes it easier for beginners to grasp. C++ is platform-dependent. Both are extremely relevant to their fields of application, and one can’t necessarily be said to be better than the other.
Also Read: Best Java Programs for Beginners and Experience 💻
3. What different forms of data are there in C++?
The four C++ data types are listed below:
- Basic Data Type. Char, short, int, float, long, double, bool, etc., are some examples.
- Data Type that was derived. Examples include pointers, arrays, etc.
- Enumeration Instance: enum
- Data kinds that are user-defined. Structure, class, etc., are instances.
4. Define class and object in C++.
A user-defined data type called a class has member functions and data members. The data variables are known as data members, and the methods used to manipulate these variables are known as member functions.
A class’s instances are objects. An object can alternatively be referred to as a parameter of a course because a class is a user-defined data type.
5. What distinguishes a class from a struct?
Class |
Structure |
By default, class members are private. |
The structure’s members are by default public. |
Accessibility specifiers by default are private when deriving a class. |
When a structure is derived from a class or struct, the underlying class’s or struct’s initial access constructors are set to public. |
Infosys Interview Question and Answers on DBMS and SQL
1. What various SQL subsets are there?
- Data Definition Language (DDL) allows you to create, modify, and remove objects in the database, among other activities.
- Access and manipulate data using the Data Manipulation Language (DML). You can use it to access, update, remove, and put data into the database.
- You can manage database access using the Data Control Language (DCL). Example: Permission to grant and revoke access.
Explore Top SQL Commands: DDL, DML, DCL, and TCL 💻
2. What distinguishes SQL and MySQL from one other?
SQL |
MySQL |
Structured Query Language, also known as SQL, is a common English language based language |
A database management system is MySQL. |
The heart of relational databases, which are utilized for database access and management, is SQL. |
Like SQL Server, Informix, etc., MySQL is an RDMS (Relational Database Management System). |
Did You Know?
There will be more than 800000 jobs available in the full stack developer industry by next year.