Cognizant technical interview questions for freshers with answers

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Cognizant technical interview questions for freshers with answers	The term "non-datatype" refers to a value rather than a datatype. Operating System. In this way, dynamic loading helps in better memory space utilization. Cognizant Placement Interiew. Read more about Are you ready to relocate? By going through the Cognizant Recruitment Process which is mentioned below you can familiarize yourselves with the hiring process that is usually followed by the Cognizant team.
Cognizant technical interview questions for freshers with answers	It's used to make a buffered character output stream with the default output buffer size. Looking for a way to join a reputed organization click here Cognizant? During the instantiation, the memory required for the object is allocated. The swapping of processes is performed to ensure the best utilization of the main memory. It means that the element that is inserted first gets removed first.
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Cognizant technical interview questions for freshers with answers	Did you think of changing your present job earlier? The greatest thing you can do is develop a list of the most popular HR interview questions and practice answering them. Please click for source What are the 5 states in a process life cycle? Solution: because position of plant C is always fix and A always planted before B and E. Change control is a function that ensures that all changes made into the software system are consistent and created using organizational rules and regulations. Which elements can occur only once and must be present? Java can be compiled as well ffeshers interpreted.

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The process took 3 days. I interviewed at Cognizant Technology Solutions. First HR will call you and brief you of your position in the company such as shift time, work culture salary and so on. After that HR conduct virtual interview in cognizant digital interview application. Once you complete interview the next day you would be sent a link to complete aptitude test.

Cognizant is a multinational technology company based in the United States that specializes in business consulting, information technology, and outsourcing.

The companys headquarters are in Teaneck, New Jersey. Cognizant assists businesses in modernising technology, reimagining processes, and transforming customer experiences in order to stay ahead in an ever-changing environment.

It is determined to enhance the way the world works via technology, whether its by altering the companies that the world relies on or by providing the tools and flexibility you need to develop the best you. Cognizants business is divided into three areas: digital business, digital operations, and digital systems and technology. Cognizant offers a great opportunity for learning and creating a career path for aspiring software engineers among all the MNCs offering Fresher Jobs in India.

Working here will expose you to a variety of new technologies as well as provide you with the opportunity to work with global customers that will help you improve your talents, problem-solving ability, and entrepreneurial spirit. Your ability to affect the future of your career—and the world—is limitless at Cognizant. From company culture to opportunities for growth, there are several things that make Cognizant an excellent option to begin your career with.

It provides a fantastic workplace that encourages employees to develop and improve their skills conducive to individual and company progress. In this article, weve covered the entire Cognizant interview process as well as a shared preparation method for acing the interview.

This study is based on online research and interviews with candidates who have recently appeared in the Cognizant interview process. For numerous jobs and departments, Cognizant hires both freshers and experienced professionals. Cognizant visits numerous college campuses in their final placements conducts walk-ins, and mega placement drives for fresher hiring.

Cognizant primarily hires experienced employees through its career website, HR consulting firms, and employee referral programmes. This season, Cognizant plans to run a recruitment process for four different positions. The following are the specifics:. Candidates applying for the GENC profile are required to appear for the aptitude test, which contains the following sections:.

Candidates should have at least basic hands-on programming skills to qualify for the GenC Elevate assessment, which should be substantiated by proof submitted during the self-profiling procedure.

The technical face-to-face interview round is the most crucial in the entire interview process. Programming language knowledge is required. Make sure youre familiar with at least one programming language. There is a considerable chance that you may be asked to write a code on pen and paper. Problem-solving skills will also be checked by the interviewer.

Knowledge of the most recent technological developments is an added advantage. You should have a fundamental awareness of contemporary technology trends, such as artificial intelligence AI , big data, and so on. Youll be asked questions about your previous projects and job experiences, such as what you did, what technology you utilized, what you developed, and how successful you were, among other things.

This is the most important round of the interview process. During this round, many in-tenders are rejected. The goal is to maintain a pleasant and confident demeanor. Interviews can be long and tedious, so remember to smile! During the HR phase, the interview panel will ask you questions about your personality, family background, education, interests, internships, work experience if applicable , and other topics.

Make preparations to answer questions on internships, projects, volunteerism, and extracurricular activities mentioned in your CV. You can never be too prepared when it comes to HR interview questions and responses. The greatest thing you can do is develop a list of the most popular HR interview questions and practice answering them. You should have the answers to these questions at your fingertips. Inter-Process Communication IPC is the mechanism by which cooperating processes share data and information.

There are 2 ways by which Inter process communication is achieved —. Semaphore is also an entity devised by Edsger W. Dijkstra, to solve the Process Synchronization problem in OS.

Its most popular use is in solving the Critical Section algorithm. It uses a signaling mechanism to allow access to shared resources namely by two — A Wait and B Signal. Deadlock refers to the condition when 2 or more processes are waiting for each other to release a resource indefinitely. A process in nature requests a resource first and uses it and finally releases it.

But in a deadlock situation, both the processes wait for the other process. A dangling pointer is a pointer that still points to a memory address that has been removed. Stack follows a LIFO pattern. It means that data access follows a sequence wherein the last data to be stored when the first one to be extracted. Arrays, on the other hand, do not follow a particular order and instead can be accessed by referring to the indexed element within the array. The way to prevent deadlock is to ensure that at least one of these conditions does not hold :.

Recursion is designed to solve problems that can be broken down into smaller, repeatable tasks. Because recursion involves repeatedly calling the same function, it has a short code length.

In problems involving trees and graphs, recursion works best. A binary tree is one type of data structure that has two nodes, a left node, and a right node. In programming, binary trees are an extension of the linked list structures.

Scanf format strings provide formatted input, while printf format strings provide unformatted input. Printf is used to print integers, characters, floats, and strings. The size of the float data type is 4bytes. Software engineering is made up of two terms that is software and engineering. Software engineering is an engineering branch to develops a software product using some scientific principles and procedures. The result will be a reliable and good quality product.

There are various software development models which are used in the software development life cycle to represent the process of building software. SDLC models define all the phases of software development. SDLC models can have a different methodology but the phases remain the same. The development team chooses the best SDLC model to develop a software product so that an efficient and reliable software product is developed.

By using SDLC models, you can develop a software product in a systematic and nice way. Here are some important SDLC models are given below-. No, the Integer data type does not support the range to Any value greater than that would be discarded.

We have the choice of using float or long int. Normalization is a step-by-step process via which we reduce the complexity of a database. The database may have a lot of redundancies unnecessary information that has become outdated or no longer useful like attendance records for former students in a university. Four major types of normalizations are. When several threads or processes share data, running in parallel on different cores, then changes made by one process may override changes made by another process running parallel, resulting in inconsistent data.

So, this requires processes to be synchronized, and handling system resources and processes to avoid such a situation is known as Process Synchronization. SQL commands are broadly classified into 4 categories. They are —. Overloading: Function overloading is a concept in which two or more functions with the same name are defined in the same class with the condition that their parameters differ in number or type. Overriding: Function overriding is a concept in which two functions with the same name and parameters are defined, with the requirement that one function is in a base class and the other in a derived class.

When a primary key is chosen from the set of candidate keys, the remaining keys are known as Alternate Keys.

The object is a class instance that holds the memory required for the logic in the class. It is a software system or collection of various programs that work together on a relational data model database and offers various integrated entities like — Database administration, Data definition, creation, updation, etc. Doubly linked lists are a special type of linked list wherein traversal across the data elements can be done in both directions.

This is made possible by having two links in every node, one that links to the next node and another one that connects to the previous node. Waterfall Model — This is the first software development model. The waterfall model is the linear sequential model in which all the phases work in a sequential manner. The output of the previous phase is the input for the upcoming phase.

But we cannot go back to the prior stage to change requirements. There is no overlapping between the phases of software development.

This model takes less time to develop and is very easy to understand. There are basically 4 types of software maintenance. They are. The connecting interface between the hardware of the computer and the end-user or his actions is called an operating system. The operating system carries out tasks asked to implement by the end-user, or supporting tasks to provide the functionality to the end-user with the help of computation power and support provided by the hardware of the system.

A process can be in any of the following 5 states:. We divide Process Scheduling into the following two types:. There are three types of schedulers categorically —. Interviewer asks questions related to oops,and then i was asked to sort my name and a program for polymorphism and some questions related to operators and my project. Psychometric Test. All Interview Exp. Cognizant Interview Dashboard. Question 1: What is a pointer?

Answer: A variable that stores the address of another variable is called a pointer. The benefits of employing a pointer include the following: Allocation of dynamic memory Handling arrays, strings, and structures in functions improves execution performance.

They play a vital role in OS design. Question What do you mean by Inter-Process Communication? Question 3: What is a semaphore? Answer: Semaphore is also an entity devised by Edsger W. Questions 4: What do you mean by a Deadlock? Answer: Deadlock refers to the condition when 2 or more processes are waiting for each other to release a resource indefinitely. Question 5: What is a dangling pointer? Answer: A dangling pointer is a pointer that still points to a memory address that has been removed.

Question 7: What is the difference between a stack and an array? Question 8: What are deadlock prevention techniques? Answer: The way to prevent deadlock is to ensure that at least one of these conditions does not hold : Mutual exclusion — If 1 resource is non-shareable, then the mutual exclusion condition must hold. Hold And wait — For the Hold and wait condition to never occur, it should be made sure that whenever a process requests a resource, it does not hold any other resource.

There can be many protocols implemented — One protocol could be allocating all resources to a process before its execution. Other Could be, A process can request resources only when it has no resources. Questions 9: What is recursion?

Answer: Recursion is designed to solve problems that can be broken down into smaller, repeatable tasks.

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Question What do you mean by Inter-Process Communication? Question 3: What is a semaphore? Answer: Semaphore is also an entity devised by Edsger W. Questions 4: What do you mean by a Deadlock? Answer: Deadlock refers to the condition when 2 or more processes are waiting for each other to release a resource indefinitely.

Question 5: What is a dangling pointer? Answer: A dangling pointer is a pointer that still points to a memory address that has been removed. Question 7: What is the difference between a stack and an array? Question 8: What are deadlock prevention techniques? Answer: The way to prevent deadlock is to ensure that at least one of these conditions does not hold : Mutual exclusion — If 1 resource is non-shareable, then the mutual exclusion condition must hold. Hold And wait — For the Hold and wait condition to never occur, it should be made sure that whenever a process requests a resource, it does not hold any other resource.

There can be many protocols implemented — One protocol could be allocating all resources to a process before its execution. Other Could be, A process can request resources only when it has no resources. Questions 9: What is recursion?

Answer: Recursion is designed to solve problems that can be broken down into smaller, repeatable tasks. Question Write a program to add two functions in Java.

Question What is a Binary Tree? Answer: A binary tree is one type of data structure that has two nodes, a left node, and a right node. Question What is printf? Question What is the size of the float data type? Answer: The size of the float data type is 4bytes.

Question Define software engineering. Answer: Software engineering is made up of two terms that is software and engineering. Software refers to the set of instructions that tells a computer what to do and how to perform any tasks.

Engineering is the work to build and design something in an effective manner. Question What are the Advantages and Disadvantages of white box testing?

Answer: Advantages: Entire code and structures are tested in the white box testing. It results in the optimization of code removing errors and helps in removing extra lines of code. This testing can start at an earlier stage. White box testing is easy to automate. Disadvantages: This testing is very expensive and time-consuming. Redesign of code needs test cases to be written again.

Missing functionalities cannot be detected. This technique can be very complex and at times, not realistic. Question Can we use int datatype to store values? Answer: No, the Integer data type does not support the range to Question Write a program to find the roots of a quadratic equation. Question What are the different types of normalization? Answer: Normalization is a step-by-step process via which we reduce the complexity of a database. Four major types of normalizations are First Normal Form 1NF : A relation is said to be in 1NF if and only if it does not have any multivalued attributes.

Example: A Student table containing a Phone number column must contain only one phone number value. After 1NF, we can still have redundant data. After 2NF, we can still have redundant data. In simple words, LHS should always be a super key. Question What is process synchronization? Answer: When several threads or processes share data, running in parallel on different cores, then changes made by one process may override changes made by another process running parallel, resulting in inconsistent data.

Only object-oriented programming models must be supported by Java. Memory management in Java is managed by the operating system. Java can be compiled as well as interpreted. Global scope is not supported in Java. Question What are the different types of SQL commands? Answer: SQL commands are broadly classified into 4 categories.

In other words, DML statements are used for data management. They provide access permissions to different kinds of users to access data in the database based on privileges Like admin or a normal user or a super user. Question What is overloading and overriding?

Answer: Overloading: Function overloading is a concept in which two or more functions with the same name are defined in the same class with the condition that their parameters differ in number or type. Question What is an Alternate Key? Answer: When a primary key is chosen from the set of candidate keys, the remaining keys are known as Alternate Keys. Question What is an object? Answer: The object is a class instance that holds the memory required for the logic in the class. Question What is the friend function?

Question What are doubly-linked Lists? Answer: Doubly linked lists are a special type of linked list wherein traversal across the data elements can be done in both directions. Question What is the Waterfall model? Answer: Waterfall Model — This is the first software development model. Question What are the various types of software maintenance?

Answer: There are basically 4 types of software maintenance. They are Corrective Maintenance: To correct any type of error present in the software product, corrective maintenance is used. Adaptive Maintenance: As new technology emerges, the software is updated by taking up adaptive maintenance.

Perfective Maintenance: The object of perfective maintenance is to improve software reliability and performance and add some new things to software products. Preventive Maintenance: There is a need for updation to prevent or correction of future errors in the software.

Question What is an Operating System? Answer: The connecting interface between the hardware of the computer and the end-user or his actions is called an operating system. Question What are the 5 states in a process life cycle? Question What are the different types of process scheduling in an Operating System? Answer: We divide Process Scheduling into the following two types: Preemptive Scheduling —The scheduling in which a running process can be interrupted if a high-priority process enters the queue and is allocated to the CPU is called preemptive scheduling.

In this case, the current process switches from the running queue to the ready queue and the high-priority process utilizes the CPU cycle.

Non-Preemptive Scheduling — The scheduling in which a running process cannot be interrupted by any other process is called non-preemptive scheduling. Any other process which enters the queue has to wait until the current process finishes its CPU cycle. Question What are the different types of schedulers? It selects the process that is to be placed in the ready queue. The long-term scheduler basically decides the priority in which processes must be placed in the main memory.

Short-term Scheduler: It decides the priority in which processes in the ready queue are allocated the central processing unit CPU time for their execution. The short-term scheduler is also referred to as the central processing unit CPU scheduler. We have given 15 most important technical interview questions for cognizant which will help you in understanding the nature of this exam well.

It is a high-speed computer bus interface designed to connect the host bus adapters to mass storage devices, such as hard disk drives and optical drives.

Statements are equivalent to sentences in natural languages. A statement forms a complete unit of execution. The following types of expressions can be made into a statement by terminating the expression with a semicolon. These kinds of statements are called expression statements. In addition to these kinds of expression statements, there are two other kinds of statements.

A declaration statement declares a variable. A control flow statement regulates the order in which statements get executed.

The for loop and the if statement are both examples of control flow statements. If the physical links are shared by more than two nodes, it is said to be Multiple Access.

Question 5. What is the benefit of using an enum rather than a define constant? The use of an enumeration constant enum has many advantages over using the traditional symbolic constant style of define. These advantages include a lower maintenance requirement, improved program readability, and better-debugging capability.

Conversely, symbolic constants must be manually assigned values by the programmer. Cognizant Off campus Drive Registration. Cognizant Recruitment A to Z details.

Question 6. If the physical links are limited to a pair of nodes it is said to be a point-point link. JavaARchive files are a big glob of Java classes, images, audio, etc. Normally when a browser encounters an applet, it goes and downloads all the files, images, audio, used by the Applet separately.

This can lead to slower downloads. Question 9. What is the order of objects destroyed in the memory?