Coforge Graduate Engineer Trainee (Get) Interview Questions, Process, and Tips

Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DSA, OOPS and DBMS.

Q1. 
Reverse a String Problem Statement
Given a string STR containing characters from [a-z], [A-Z], [0-9], and special characters, determine the reverse of the string.
Input:
The input starts with a single i...read more
Ans. 
This can be done by iterative swapping using two pointers. The first pointer points to the beginning of the string, whereas the second pointer points to the end. Both pointers keep swapping their elements and go towards each other. Essentially, the algorithm simulates the rotation of a string with respect to its midpoint.
Time Complexity : O(n)
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Q2. What are the types of polymorphism in Object-Oriented Programming?
Ans. 
Polymorphism is of two types :
1. Compile Time Polymorphism : 
Invokes the overloaded functions by matching the number and type of arguments. The information is present during compile-time. This means the C++ compiler will select the right function at compile time. It is achieved through function overloading and operator overloading.

2. Run Time Polymorphism : 
This happens when an object’s method is called durin...read more
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Q3. What is inheritance in object-oriented programming?
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Inheritance is the process in which two classes have an is-a relationship among each other and objects of one class acquire properties and features of the other class. The class which inherits the features is known as the child class, and the class whose features it inherited is called the parent class.
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Q4. How does garbage collection work in Java?
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Java garbage collection is an automatic process. Automatic garbage collection is the process of looking at heap memory, identifying which objects are in use and which are not, and deleting the unused objects. An in-use object, or a referenced object, means that some part of your program still maintains a pointer to that object. An unused or unreferenced object is no longer referenced by any part of your program. So the...read more
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Q5. What is the difference between checked and unchecked exceptions in Java?
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1) Checked Exception
The classes that directly inherit the Throwable class except RuntimeException and Error are known as checked exceptions. For example, IOException, SQLException, etc. Checked exceptions are checked at compile-time.

2) Unchecked Exception
The classes that inherit the RuntimeException are known as unchecked exceptions. For example, ArithmeticException, NullPointerException, ArrayIndexOutOfBoundsException...read more
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Round duration - 30 minutes
Round difficulty - Easy

This was a typical managerial round.

1hr aptitude test
easily solvable

Q1. Basic coding generals
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Q2. Where to go what to know about domain
Ans. 
To excel in a domain, one must know where to focus their learning and what specific knowledge is required.
• Research the current trends and advancements in the domain

• Understand the key concepts and principles of the domain

• Identify the important tools and technologies used in the domain

• Learn from experts and professionals in the field

• Stay updated with industry news and developments
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Q1. Why to join the company
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Q2. Location and general talks
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Round duration - 45 minutes
Round difficulty - Easy

This was a technical round with questions on core computer engineering subjects.

Q1. What is the Software Development Life Cycle (SDLC)?
Ans. 
SDLC is a process followed for a software project, within a software organization. It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software. The life cycle defines a methodology for improving the quality of software and the overall development process.

A typical Software Development Life Cycle consists of the following stages −

Stage 1: Planning and Requirement An...read more
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Q2. What is a bandpass filter?
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A bandpass filter is an electronic device or circuit that allows signals between two specific frequencies to pass, but that discriminates against signals at other frequencies. Some bandpass filters require an external source of power and employ active components such as transistors and integrated circuits; these are known as active bandpass filters. Other bandpass filters use no external source of power and consist onl...read more
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Q3. What is the cutoff frequency?
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Cutoff frequency (also known as corner frequency, or break frequency) is defined as a boundary in a system’s frequency response at which energy flowing through the system begins to be attenuated (reflected or reduced) rather than passing through. The cutoff frequency or corner frequency in electronics is the frequency either above or below which the power output of a circuit, such as a line, amplifier, or electronic fi...read more
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Q4. What is the difference between 32-bit and 64-bit operating systems?
Ans. 
A 32-bit system can access 232 different memory addresses, i.e 4 GB of RAM or physical memory ideally, it can access more than 4 GB of RAM also. 
A 64-bit system can access 264 different memory addresses, i.e actually 18-Quintillion bytes of RAM. In short, any amount of memory greater than 4 GB can be easily handled by it.
A major difference between 32-bit processors and 64-bit processors is the number of calculatio...read more
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