Virtusa Interview Questions

This blog on Virtusa Interview Questions for freshers covers the list of interview questions and interview preparation which are recently covered. These Virtusa interview questions includes the category of both freshers and experienced professionals.

Virtusa Interview Questions

About Virtusa

One sprint at a time, inspiring innovation with Virtusa, we assist you in driving your change at the speed and enthusiasm of a startup, with experienced execution on a global scale. Businesses now seek transformative change at a size and speed that challenges established modes of operation. We ignite transformation with our Digital Transformation Studio, which provides deep digital engineering and industry experience via client-specific and integrated agile scrum teams.

Virtusa accelerates business by combining deep industry experience with seamless technology delivery. We empower our clients to alter, disrupt, and unlock new value back by today’s most known technology companies, thanks to a robust partner ecosystem that includes a range of Fintech and Insurtech startup relationships. We are proud of who we are and what we do at Virtusa. We have been honored for our great service, industry leadership, business culture, and so much more over the years.

Virtusa Interview Process

Virtusa hires both on-campus and off-campus freshmen. These Virtusa Interview Questions is for both fresher and experienced candidates. In addition to the applications through the career portal.

Round 1: Virtusa Online Technical Aptitude Assessment.

Round 2: Virtusa Technical Interview.

Round 3: Virtusa HR Interview

Eligibility Criteria at Virtusa

Eligibility for the course:

  • B.E./B.Tech/MCA/M.Tech/M.E./M.Sc (IT)
  • 65% of candidates must have a GPA of 6.5 or above.

Virtusa Technical Interview Questions for Freshers and Experienced

1. Explain the binary search. How to implement it?

One of the most often used algorithms in computer programming is binary search. It is used almost often in computer applications since it is so widespread. You can tell that binary search is highly helpful by examining how frequently it appears in various programming languages. The quicker approach, binary search, can assist to seek the element in just O (log n) time. The element’s order must be sorted in order for binary search to function.

Java implementation of Binary Search
public boolean binarySearch(int[] arr, int low, int high, key){
//base case returns false when index is out of bound 
if(low > high) 
    return false;

int mid = (low+high)/2
//Searching on mid if key found then return true
if(arr[mid] == key) 
    return true
//Searching on right sub array if key exist there
else if(arr[mid] < key) 
    return binarySearch(arr, mid+1, high, key);
//Searching on left sub-array of key exist there.
    return binarySearch(arr, low, mid-1, key);

2. Difference between left join and right join?


The Left Join operator is used to join two tables when certain columns have both main and foreign keys. If a column in the left table has primary key values, only those rows will be included in the query’s result set. If you do not specify a primary key column, the result set will include all rows. A right join returns all rows in the right table that have values that match any values in the left table. The left join returns all rows that include any of the values from the left table.

3. what is the use of ‘super’ keyword inside the constructor?

The Super keyword with inside the constructor is used to invoke the parent class constructor. Generally, when a subclass extends the parent class, the figure class has a parameterized constructor. If we create the object of the child class, then the default constructor of the parent can be invoked implicitly. Since we want to initialize the object with a few values, so we want to explicitly call it from the child class constructor the usage of the super keyword.

4. Define DHCP.

The Dynamic Host Configuration Protocol (DHCP) enables a device to automatically get an IP address and other network information from a DHCP server. This might be helpful if you have a big network and want to offer each device a unique IP address or if you don’t want to manually allocate IP addresses to devices on your network. Many routers have a built-in DHCP server, but you can also set up a DHCP server on your computer to provide devices on your network IP addresses.


5. Explain some drawbacks of classical waterfall modal.

The standard waterfall model has a number of drawbacks; thus we utilize different software development lifecycle models that are based on it instead of using it for actual projects. These model’s primary flaws are as follows:

There is no feedback path: Software grows from one phase to the next in the traditional waterfall paradigm. Developers are presumed to be error-free at all times. As a result, there is no method for rectifying mistakes.

Change requests are difficult to accommodate: This approach presupposes that all client requirements can be identified ahead of time, but in fact, customer requirements change over time. It is tough to accommodate any modification requests once the requirements specifications phase has been finished.

this model proposes starting a new phase once the preceding one is finished. However, this cannot be maintained in real-world enterprises. Phases may overlap to improve efficiency and cut expenses.

6. Define TCP/IP Protocol.

The network protocol TCP/IP (Transmission Control Protocol/Internet Protocol) is used by computers to interact with one another. It is the foundation of the internet and how we obtain information from it. TCP is an abbreviation for Transmission Control Protocol, whereas IP is an abbreviation for Internet Protocol.

These two phrases explain how data is transferred from one computer to another. TCP/IP is analogous to a data highway system. Each connection has its own pair of TCP and IP channels. When data passes through this system, it goes in a specified direction and adheres to the rules established by each lane. For example, if you’re going along the street, your path is referred to as a lane. When you’re driving, it’s referred to as an interstate or expressway.

Separate lanes must be used for each direction since only one way of data may be sent at a time (for example, 1st Lane – Download; 2nd Lane – Upload).

You can instantaneously exchange files with anyone using TCP/IP on the internet and with other computers that have TCP/IP enabled on their network ports with the correct software installed on your computer.

7. Difference between set and list.

A list is an ordered group of values where each value has a unique index number that may be used to retrieve it. A set is an unsorted group of values that, once generated, cannot be changed. Lists are ordered (beginning at 0), whereas sets are unordered. This is the primary distinction between the two types of data.

There are various uses for sets:

  • They can be used to store data in a certain sequence, such as a list of phone numbers, the months of the year, or the days of the week.
  • While files are duplicated, sets can be used to maintain their original order (for instance, when sharing data with a person who doesn’t have the same software tools).
  • They can be used to depict a limited population with distinct individuals (e.g., all people born in New York City).
  • They may be utilized to depict random events with equal chance for each participant (e.g., rolling dice).
  • They can also be utilized to keep particular instances of items (e.g., all forks from your kitchen drawer).
  • These applications demonstrate the versatility of both sets and lists. In order to choose the appropriate kind for your application, it is crucial to understand how they differ from one another.

8. You are given a number array and a goal number. You must provide the index of two integers in such a way that the goal sum will be reached by adding the index’s elements.

The obvious method is to select every element and identify the element that sums to goal. This method may take some time (n2). As a result, we can see that we are repeating the task by modifying the index each time. So, one thing we can do is keep the index of the element that we have already visited in HashMap. Then, if an element is necessary to sum to a goal that we may obtain from the Hashmap. So, using this method, we can do this task in O(n) time.

//This method returns the index of the two-element that sum to the target.
public int[] solution(int[] nums, int target) {
int val = 0;
// HashMap that stores the index of the element that are required
// to sum to target
HashMap< Integer, Integer> hm = new HashMap< >();
hm.put(nums[0], 0);
for(int i = 1; i < nums.length; i++){
    val = target - nums[i];
    //Returning the solution of the element found.
        return new int[]{hm.get(val), i};
    // Adding the element to the hashmap so that it may be needed
    // for future element
    hm.put(nums[i], i);
return new int[]{0,0};

9. Brief is REST API?

REST API (Representational State Flow) is an architectural approach for describing information transfer between web services. REST interactions are classified into three types: request and response, PUT and GET, and resource and representation. These exchanges may be carried out using regular HTTP requests, but REST also includes a contract that specifies the sorts of data that can be communicated, how it can be structured, and how it can be manipulated.

The REST API concept is to reduce the quantity of data delivered over the network. It does this by specifying how data will be sent (PUT or POST) and the method to be utilized (GET or DELETE).

Another important component of REST API is that both the client and the server must follow a set of rules that specify how data will be sent (e.g. which format/data format). The combination of these two features increases remote communication security by ensuring that no information is transferred between devices unless both parties explicitly accept it.

Because it minimizes complexity while assuring interoperability across web services, REST API has become a common architectural paradigm among current online applications. Although the notion of REST API may appear straightforward at first look, there are various nuances to consider when developing an application with this architectural style in mind. REST API, in particular, necessitates both clients.

10. Explain ACID Property in DBMS.

The term ACID stands for “Atomicity, Consistency, Isolation, and Durability.” A database system feature that assures consistency between the database’s internal data and external data sources such as a file system. If a property is lacking in one region, the data must be consistent throughout all areas.

Atomicity: Only modifications expressly authorized by a transaction are permitted in the database system.

Consistency: The database’s internal data and external data sources must be consistent. This is accomplished by making certain that no transactions attempt to change the same records at the same time.

Isolation: Transactions must proceed independently of one another. For instance, both transactions are likely to fail if one edits a record that another transaction is changing.

Durability: After a transaction has been completed, all records must be written back to their original position with no damage.

Virtusa Interview Questions

1. What are the main method is static in java?

The main () method in Java is always static, thus the compiler can call it before or after the creation of a class object.

2. What is abstract class?

Abstract classes have one or more abstract methods, which are methods that are stated but have no implementation. Abstract classes cannot be instantiated and must rely on subclasses to supply implementations for abstract methods.

3. How abstract classes are similar or different in java from C++?

In C++, a class becomes abstract if it has at least one pure virtual function, but in Java, a distinct term abstract is necessary to make a class abstract.

4. What is object cloning?

Object cloning is the process of creating an exact replica of an object using the assignment operator. It makes a new instance of the current object’s class and initializes all of its fields with the identical values of the corresponding fields of this object.

5. Different between HashMap and HashTable in java.

There are numerous differences between HashMap and Hashtable in Java: Hashtable is synchronized and better for non-threaded applications, but HashMap is not, and unsynchronized objects often perform better than synchronized ones. Hashtables do not support null keys or values.

6. What is static variable in java?

In Java, a static variable is a variable that is initialized just once at the beginning of execution and belongs to a class. It is a variable that is an attribute of the class, not the object. Static variables are initialized just once, at the start of the execution.

7. How HashMap works in java?

Map items are stored in HashMap using its static inner class Node. As a result, each node in a hashMap entry is a node. Internally, HashMap employs a hashCode for the key Object, which is then utilized by the hash function to determine the index of the bucket where the new item may be inserted.

8. How are java objects stored in java?

All objects in Java are dynamically allocated to heaps. Only a reference is formed when a class type variable is only declared. The new method must be used to allot memory to an object (). As a result, heap memory is always allotted to the object.

9. How is inheritance in C++ different from java?

C++ allows for multiple inheritance of any class. A class in Java can only inherit from one other class, although it can implement many interfaces. Java makes a clear distinction between interfaces and classes.

10. What are the collection of framework?

A collection framework is a class library that offers general methods for building, finding, sorting, and iterating over object collections. In other words, it provides the building blocks for creating new collection types.

Unlike standard APIs such as java.util.Collection, a collection framework can be used to develop new data structures that are not included in the JDK. As a result, programmers may easily design new collections that have features in common with JDK collections already in use. This idea is offered by several well-known frameworks, like Google Guava and Apache Commons Collections. But not every collection structure is made equal. It’s critical to make an informed decision when selecting a framework for your project since a collection framework with poor architecture might result in memory leaks or defects that are hard to debug.

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HR Virtusa Interview Questions

  • Tell me a little about yourself.
  • Why ought I to employ you?
  • In what position do you see yourself in five years?
  • Who in your life has influenced you, and why?
  • On a scale of one to ten, rate me as an interviewer.

Virtusa Interview Questions for Experienced

Karthik, Former Technology Engineer at Virtusa

  • I started working with Virtusa in Chennai in 2017 as a fresher. I can now talk about my experience with Virtusa.
  • In 2017, I received an offer from Virtusa along with four other NIT Bhopal graduates. We began working with Virtusa in Chennai in October 2017. In Chennai, there are two atc of Virtusa, one in Navallur and the other in DLF Ramapuram. With 17 other new hires, we first joined Virtusa’s Navallur office.
  • The majority of Virtusa projects employ the java programming language, therefore you will have plenty of opportunities to learn.
  • As soon as you receive a project, your job begins, but the problem is, you’ll still have a fulfilling life outside of your support role, where you could have to put in long hours.

Anubhav, Worked at Virtusa for 6-years

What are some pointers for adapting the Virtusa job interview process?

I found the following two things to be helpful in passing my Virtusa interview:

  • Thorough knowledge of my skill set.
  • Honestly.

Hope it also benefits you.

Santhosh, Associate Engineer at Virtusa (company) (2017–present)3-years

How competitive is Virtusa’s hiring process?

In Virtusa, the employment procedure is quite competitive off-campus. Written exams, technical interviews, and HR will all be required. It will be simple to succeed in the interview if one can pass the written test. Virtusa recently had a drive in Hyd. Three thousand students showed up, but only 70 were chosen. Many candidates are solely vetted through written exams.

To pass the written test, we must successfully run at least two of the three programs. They focus mostly on the Java collection idea, however someone with strong programming abilities will breeze through the interview. Best wishes, guys.


The Virtusa Interview Questions provides a aid in your mental preparation for the Virtusa Interview Process. Check out the two sets of Virtusa Interview Questions, then prepare yourself to crush the interview.

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