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Wipro Interview Questions and Answers for 2023

Wipro is an Indian multinational technology company headquartered in Bangalore that provides information technology (IT) services, consulting, and business process services. The company's services include application development and maintenance, infrastructure management, digital transformation, analytics, and engineering services. The interview process at Wipro varies depending on the position and level of the job but generally consists of several rounds, including a screening round, technical rounds, and HR rounds. Whether you're applying for a beginner-level position or preparing for a senior position, our set of Wipro interview questions and answers will help you prepare for the interview with more clarity and confidence.

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Beginner

The primary distinctions between object-oriented and object-based languages are as follows. 

  • Object-oriented languages adhere to all Object-Oriented Programming notions, whereas object-based languages do not, such as inheritance, polymorphism, etc. 
  • Object-oriented languages do not include built-in objects, but object-based languages do. JavaScript, for example, includes a built-in window object. 
  • Object-oriented programming languages include Java, C#, Smalltalk, and others, whereas object-based languages include JavaScript, VBScript, and others. 

It's no surprise that this one pops up often in Wipro interview questions and answers.

There are two methods for instructing the JVM to conduct the Garbage Collection. 

The garbage collection methods are accessible in Java's Runtime class. The Runtime class is a singleton in any Java application code. The function getRuntime returns a singleton instance of the Runtime class (). This Runtime instance may be used to request garbage collection by calling the gc() method. 

Using the System class System.gc() method, request that the JVM conduct GC. 

publicclassSample 
{ 
publicstaticvoidmain(String[] args) throwsInterruptedException 
{ 
Sample s1 = newSample(); 
Sample s2 = newSample(); 
// Making the reference variable as null 
s1 = null; 
System.gc(); 
// Making the reference variable as null 
s2 = null; 
// Calling for garbage collection through the getRuntime() method 
Runtime.getRuntime().gc(); 
} 
@Override 
protectedvoidfinalize() throwsThrowable 
{ 
System.out.println("Garbage collector has been called"); 
System.out.println("The Object whose garbage has been collected is : " + this); 
} 
} 

In the above code, we create two instances of a class and then reset them to null. The garbage collection is then requested using the two ways described above. As a result, we receive the output shown above. 

An association is a relationship between two separate classes that is established by their Objects. Associations can be one-to-one, one-to-many, many-to-one, or many-to-many. 

In Object-Oriented programming, an Object communicates with other Objects to use the capabilities and services given by that object. Association can have two forms: composition and aggregation. 

Aggregation is a special kind of relationship in which: 

  • It refers to a Has-A connection. 
  • It is a one-way relationship or a one-way association. 
  • Both items in Aggregation can continue independently, suggesting that ending one entity has no effect on the other. 
  • Each instructor is affiliated with a college, and each student is likewise associated with a college, as seen in the above graphic. As a result, both the learner and the instructor can live separately. 
  • Composition is a form of Aggregation in which two things rely heavily on one other. 
  • It signifies a connection component. 
  • In terms of composition, both entities rely on one another. 
  • When two entities combine to form a composition, neither entity can exist without the other. 
  • In the graphic above, we can plainly see that both the tire and the engine are essential components of a vehicle. Both are dependent on one another. The Vehicle entity is worthless without either of them. 

A precondition is a condition that must be satisfied before calling a member function. A class is suitable if preconditions are never false. If a precondition is not met, the next function is skipped. For example, before placing an element onto a stack, we use isfull() to determine whether the stack is full. A prerequisite, in this case, would be isfull(). 

If the precondition was true when the function was entered, the postcondition must be true when the function is exited. 

The post-conditions must never be false for a code to be successfully implemented. For example, we know that after adding an element to the stack, isempty() must always be true. This is a post-condition for a push operation. 

One of the most frequently posed Wipro interview questions, be ready for it.

At runtime, stack unwinding is the process of removing function entries from the function call stack. Stack Unwinding is frequently related with Exception Handling. When an exception occurs in C++, the function call stack is searched linearly for the exception handler, and any entries before the function containing the exception handler are erased. If the exception is not handled in the same code, stack unwinding is required (where it is thrown).  

Both delete() and free() are used to dynamically deallocate memory. 

The C library function free() can also be used in C++, although the term "delete" is a C++ keyword. 

The delete operator destroys a pointer created using the new operator or a NULL pointer, whereas the free() function destroys a pointer allocated with the malloc(), calloc(), or realloc() methods or a NULL pointer. 

When the delete operator in C++ eliminates the allocated memory, it executes the class's destructor, but the free() method does not; it simply frees the memory from the heap. 

Some of the most significant characteristics of an operating system are as follows: 

  • The operating system enables several apps and peripheral devices to share the computer's memory and CPU time. 
  • An operating system acts as a communication bridge between the user and the computer hardware (interface). An operating system provides a user interface, such as a graphical user interface or a command line. 
  • An operating system includes the ability to boot the machine. 
  • It maintains peripheral devices and does simple tasks such as keeping track of all devices attached to the system, naming a program called the Input/Output Controller that oversees each device, and so on. 
  • It provides file management, which is the process by which an operating system keeps, retrieves, manipulates, and saves data. 

Time slicing allows a job to run for a predetermined period before returning to the pool of available tasks. The executable job is then determined by the scheduler based on the priority and a range of other variables. In a time-slicing approach, a job executes for a set period. If another job with a higher priority is finished after that task, the scheduler performs the priority task next, depending on priority and other factors. 

The following are the benefits of time slicing in CPU scheduling: 

  • CPU resources are allocated equitably. Our CPU's kernel does not just devote all our computers' resources to a single job or service. Our kernel manages these processes without delay since the CPU is always executing several processes that are essential for it to function. 
  • It gives equal weight to all processes. The CPU does this by running processes one by one, slice by slice. A time slice is a short amount of time assigned to a task and performed by the CPU. 
  • It's easy to include into the system. 
  • After a given time, a process is interrupted, and another process runs for the same amount of time. 
  • The context switching strategy is used to save the states of preempted programs. As a result, the preempted processes' states are not lost. 

The following are the drawbacks of time slicing in CPU scheduling: 

  • If the slicing time is short, the processor output will be delayed. 
  • It spends a significant amount of time moving between contexts. 
  • Process management is greatly influenced by the time quantum/slice. 
  • Priorities are not established for processes. 
  • More important duties are not given priority. 
  • It's difficult to come up with an appropriate temporal quantum/slice. 

SHELL is a software that serves as the user's interface to the operating system. It is the Unix operating system's command-line interface. It takes information from you and then executes programs based on that information. Once the program has completed its execution, the output is presented. 

We may use Shell to execute commands, programs, and shell scripts. The kernel manages resources between processes and regulates critical computer activities. It also limits hardware access, organizes all running utilities, and controls resources across processes. The operating system's utilities are only accessible to kernel users. 

Shell Varieties: 

  • The C Shell: It contained, among other things, aliases and command history. It offers features that make programming easier, including as built-in arithmetic and C-like expression syntax. 
  • The Bourne Shell is the first UNIX shell. It's more convenient and quicker. It is devoid of interactive features such as the capacity to recall previous instructions. Furthermore, it lacks built-in support for arithmetic and logical expressions. It is the Solaris operating system's default shell. 
  • The Bourne shell is a subset of the Korn shell. As a result, the Bourne shell supports everything. It has interactive features. Among the features are built-in arithmetic and C-like arrays, functions, and string manipulation tools. It performs better than a C shell. 
  • The GNU Bourne-Again Shell (GABS): It is compatible with the Bourne shell. It has Korn and Bourne shell functionalities. 

Indexing is a strategy for increasing database speed by minimizing the number of disc accesses required while running a query. It is a data structure method for quickly discovering and accessing data in a database. 

Indexes have the following advantages: 

  • An index allows data to be readily accessed. 
  • When an index is utilized in a query, the performance often improves significantly. 
  • They're useful for sorting. It is feasible to avoid using a post-fetch-sort method. 
  • Each entry in the database is uniquely identifiable by the index. 

The disadvantages of indexing are as follows: 

  • Indexes slow down inserts, updates, and deletes. 
  • Indexes take up a lot of room (this increases with the number of fields used and the length of the fields). 

SQL Server Profiler is a graphical user interface for SQL Trace (SQL Trace is a built-in SQL Server program in SQL Server 6.5 that monitors and records database activity). This tool may monitor a Database Engine or Analysis Services instance by displaying server activity, setting filters to focus on the actions of certain users, applications, or workstations, and filtering SQL instructions. You may save information about each occurrence to a file or table for further examination. 

We may use the SQL Profiler program to track SQL Server connections and discover actions such as which SQL Scripts are being executed, failed tasks, and so on. This program monitors, analyzes, troubleshoots, and tunes SQL databases and their surroundings. 

Expect to come across this popular question in Wipro interview questions for freshers.

Hybrid cloud computing offers the ability to mix on-premises infrastructure, private cloud services, and public cloud services (such as Amazon Web Services (AWS) or Microsoft Azure) with platform orchestration. 

Cloud services are a great way to transcend traditional IT limitations, allowing you to innovate more quickly, cheaply, and easily than ever before. Every technology management organization has two agendas: the IT agenda and the business transformation agenda. Historically, the IT agenda has been focused on cost-cutting. Plans for digital business transformation, on the other hand, are focused on creating money through investments. 

The key advantage of a hybrid cloud is its adaptability. To get the agility required for a competitive edge, your organization may want (or need) to integrate public clouds, private clouds, and on-premises resources.  

Eucalyptus is commercial and open-source software for building private and hybrid cloud computing environments compatible with Amazon Web Services (AWS). The business Eucalyptus Systems invented it. Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems is what Eucalyptus stands for. By pooling computing, storage, and network resources, Eucalyptus enables application workloads to be easily scaled up or down. 

Some of its features include: 

  • The Eucalyptus User Console allows users to customize computational, network, and storage resources. Development and test teams may govern virtual instances using built-in key management and encryption tools. 
  • Eucalyptus can run various virtual machine images, including Windows and Linux. 

Users can develop a library of Eucalyptus Machine Images (EMIs) that are divorced from infrastructure details, allowing them to run on Eucalyptus clouds. 

  • Storage area network devices that leverage storage arrays to improve speed and reliability are supported by Eucalyptus. Eucalyptus also supports direct-attached storage. 
  • Eucalyptus 3.3 now includes new AWS compatibility capabilities. For example, resource tagging enables application developers and cloud administrators to apply customizable metadata tags to resources such as firewalls, load balancers, Web servers, and specific workloads to aid in their identification. 
  • Maintenance Mode in Eucalyptus 3.3 enables cloud managers to do maintenance on Eucalyptus clouds while instances and cloud applications remain operational. 
  • Among the new features in Eucalyptus 3.4 are improved image management and migration tools, warm upgrade capabilities, a hybrid cloud user dashboard to manage both Eucalyptus and AWS resources, Identity and Access Management (IAM) roles, and increased High Availability (HA). 

The Project Management Life Cycle is a collection of activities/tasks that must be accomplished in order to meet project objectives or targets. This aids in arranging and simplifying the efforts necessary to finish the project into a logical and attainable series of tasks. The Project Management Life Cycle is broken into four easy stages, which are as follows: 

The first and most crucial phase in the project's life cycle, during which the project's initial scope is decided, and resources are assigned. 

  • Planning: This phase demands you to take down enough detail for the project to plan time, cost, and resources. It determines the amount of labor necessary and handles risk properly. 
  • Execution: This stage comprises the processes that are used to finish the job of the project management plan. It all comes down to accomplishing the project's objectives. It also includes monitoring, evaluating, and controlling the project's progress. You must also identify potential problems and take appropriate action as soon as feasible. 
  • Closure: This stage is critical in project management since it oversees the concluding of all project activities. 

This comprises completing all activities across all levels, disbanding the project team, and utilizing the project closure report to sign off on the project with the client. 

In project management, RAID stands for Risk, Actions, Issues, and Dependencies. These are critical concepts for a project manager to grasp. 

Risks are possible problems that might have an influence on the project, either positively or negatively, causing the final output to diverge from the intended plan. 

Actions are the tasks that you complete during the project. 

Issues are impediments that may arise throughout the course of a project and must be adequately handled, or the project will be derailed or fail. 

Decisions are the actions/tasks that you select for the project. 

A common question in Wipro interview questions on C language, don't miss this one.

The key distinctions between localStorage and sessionStorage objects are as follows: 

  • The data in the localStorage object does not have an expiration date. The sessionStorage object, on the other hand, only stores data for one session. 
  • Data in a localStorage object is not erased when a browser window is closed. However, when the browser window is closed, the data in sessionStorage objects is deleted. 
  • SessionStorage data is only available in the current browser window. LocalStorage data, on the other hand, may be shared across several browser windows. 

CSS preprocessors are programming languages that extend the capability of CSS. In our CSS code, we may use variables, nesting, inheritance, mixins, functions, and mathematical operations. CSS preprocessors make it easy to automate repetitive tasks, reduce code bloat and mistakes, create reusable code snippets, and retain backward compatibility. 

The advantages and disadvantages of utilizing a preprocessor vary based on the type of project, however the following are examples of the advantages and disadvantages. 

Advantages: 

  • CSS Preprocessor allows you to add variables and functions to CSS, giving it a new dimension and scope, making development easier and more efficient. It also helps with code structure and cleanliness. 
  • CSS Preprocessors are a one-of-a-kind feature that allows you to merge many stylesheets into one. You may create individual files for each screen or page and then merge them into the main CSS file. 
  • The CSS Preprocessor might help you prevent repeats. Rather than rewriting popular styles, write them once and then import them. 
  • CSS class nesting simplifies and saves time when targeting DOM components. Nesting also makes it much easier to modify CSS files. 

Disadvantages: 

  • Preprocessors require preprocessing tools. They can take a long time to recompile. 
  • Even if the source files are small, the output CSS may be huge, making the request take longer to complete. 
  • Choosing a preprocessor is a matter of personal preference, and it may be illuminating to observe how a developer could select one over the other for your project. 

Block 

A block-level element is rendered as a block that will always begin on a new line and will expand to take up the whole width of its container.

By default, block-level components include div>, img>, section>, form>, and nav>. 

Inline 

Inline objects are drawn where they are defined, taking up just the space needed. The simplest way to learn how they function is to see how text flows on a page.

By default, inline elements include span>, b>, strong>, a>, and input>. 

The following are some of the most important characteristics of an operating system: 

  • The operating system allows several programs and peripheral devices to share the computer's memory and CPU time. 
  • An operating system provides a user interface (UI), such as a graphical user interface (GUI) or a command line (CL) (OS). 
  • The operating system of a computer includes features for booting it up. 
  • Manage the peripheral devices and do some simple tasks. 
  • It makes file management easier. File management is the process through which an operating system stores, retrieves, manipulates, and saves data. 

SQL Profiler is a profiler software that is generally used to watch SQL Server connections and determine activities such as which SQL Scripts are executing, and which are failing. 

A stored procedure is a set of SQL statements that may be executed in a variety of ways. Most database management systems, although not all, offer stored processes. By keeping the code or procedure in the system and utilizing it repeatedly, the stored process promotes reusability, making work more accessible. 

  • A thread is the smallest and most insignificant processing unit, a lightweight subprocess, and a distinct execution route.  
  • Threads are self-contained, which means that if one thread fails, the others are unaffected. It makes use of shared memory space. 
  • The method is time-consuming and might require several threads, and it is only a small part of a larger program. 

This is a frequently asked question in Wipro HR interview questions.

If a question like this is posed, an answer like Wipro is India's leading IT firm. It offers an excellent working atmosphere. Your qualities will be valued here. The company has worked in a variety of industries and nations. Once inside, you will have several alternatives based on your professional talents. Wipro also has a nice team to work with, and the work-life balance is outstanding.

  • Multitasking: As the name implies, multiple jobs run on a single CPU. We use multitasking to make the most of the CPU. 
  • There are two methods to multitask: 
    • Process-based Multitasking (Multiprocessing) 
    • Thread-based Multitasking (Multithreading) 
  • Multi-processing refers to a system's capacity to support many central processing units at the same time. 
  • As the name indicates, several threads are operating at the same time. 
  • A thread is the smallest unit of processing, a lightweight sub-process. 

The following are the primary distinctions between object-oriented and object-based languages: 

  • All Object Oriented Programming notions are adhered to by object-oriented languages, however not all Object Oriented Programming concepts, such as inheritance, polymorphism, and so on, are adhered to by object-based languages. 
  • Object-oriented languages lack built-in objects, whereas object-based languages do. JavaScript, for example, includes a window object. 
  • Java, C#, Smalltalk, and other object-oriented programming languages are examples, whereas object-based languages include JavaScript, VBScript, and others. 
Errors
Exceptions

A compilation or execution error cannot be recovered from. 

To recover from exceptions, use a try-catch block or the throw keyword. 

All errors in Java are of the unchecked variety. 

There are numerous exceptions for both checked and unchecked types. 

The environment in which the code is operating is the most common source of errors. 

Exceptions are thrown by the software. 

Errors may arise at both compilation and execution time.Compile Time: for example Error in Syntax Logical Error during Run Time 

All exceptions occur during program execution. 

Errors are defined in the Java.lang.error package file. 

Exceptions are defined in the Java.lang package. 

java.lang.StackOverflowError, java.lang.OutOfMemoryError are two examples. 

Examples of exceptional bundles: SQLException and IOExceptionhave been checked. ArrayIndexOutOfBoundsException, NullPointerException, and ArithmeticException are unchecked exceptions. 

Advanced

A precondition is a criterion that must be satisfied before a member function may be called. If preconditions are never false, a class is used correctly. If a precondition is not met, the next function is not executed. We call isfull() before placing an element into a stack, for example, to determine if the stack is full. The isfull() method is a prerequisite in this scenario. 

The postcondition must be true when the function is exited if the precondition was true when the function was entered. For a code to be successfully implemented, the postconditions must never be false.For example, we know that isempty() must always be true after adding an element to the stack. 

A C++ stack unwind is a technique that allows code to continue executing after it has run past its normal boundaries, such as the end of an if statement. 

Stack unwinding is a mechanism used by the compiler to remove function entries from the function call stack during runtime. Exception handling is commonly associated with stack unwinding since it requires the process of searching a linear fashion for the exception handler in all functions that could potentially handle an exception. If an exception is not handled in the same function, stack unwinding is necessary (where it is thrown). 

  1. Both delete() and free() are used to dynamically deallocate memory. 
  2. The C++ keyword "delete" is used, although the free() function is a C library function that may also be used in C++. 
  3. The delete operator removes a NULL pointer or a pointer allocated by the new operator, whereas the free() function removes a NULL pointer or a pointer allocated by the malloc(), calloc(), or realloc() methods. 
  4. The delete operator in C++ invokes the class's destructor when it deletes allocated memory, whereas the free() function does not; it just frees the memory from the heap.

Among the several sorts of objects in DBMS are: 

  • View: A database view is created using this object. It's a logical table based on a distinct point of view. The base table is the table from which the view is constructed. 
  • Table: To build a table in a database, use the CREATE TABLE statement. 
  • Sequence: This object command is used to create a database series. It's a database object that a user generates and shared with other users to produce unique numbers. 
  • Index: A database item can construct indexes in the database by using an index. Indexes are used to rapidly retrieve rows from a table. 
  • Synonym: This object is also used to generate database indexes. Using synonyms, you may rapidly locate the things. 

When you run a program, it loads in memory on your computer and begins to operate by sending and receiving processor instructions. When your software has to perform a task, it loads it into memory until the task is completed, at which point the program releases it. 

Now, explain the idea of dynamic memory allocation in the C programming language, which allows C programmers to allocate memory at runtime. The C language supports dynamic memory allocation using four functions in the stdlib.h header file. 

  • malloc() 
  • calloc() 
  • realloc() 
  • free() 

When developing software, a programmer must adhere to the SDLC. 

The software development life cycle explains the phases involved in the creation of new software. 

SDLC is made up of six steps: 

  • Consider the scope, technique, and features, among other things, while planning. 
  • Through a requirement analysis, gather the essential tools, data, and information for the project. 
  • Designing: Create a prototype to test the architecture of the project. 
  • Coding: Coding that adheres to the design. 
  • Testing is performed to see whether the actual result matches the planned output. 
  • Updating and maintaining 

To implement a Java interface, use the word "implement"; to extend a Java abstract class, use the word "extend." 

An interface can only extend another interface; an abstract class has two properties: it can only extend one Java class and implement several interfaces at once. 

Properties of a class are characteristics that characterize classes 

Using a C program, sort the items of an array in decreasing order. 

#include<stdio.h> 
include<conio.h> 
void main ()  
{  
intnum[30];  
inti, j, a, m;  
printf("Enter the value of N\n");  
scanf("%d", &m);  
printf("Enter the numbers \n");  
for (i = 0; i< m; ++i)  
scanf("%d", &num[i]);  
/* sorting begins ... */  
for (i = 0; i< m; ++i)  
{  
for (j = i + 1; j < m; ++j)  
{  
if (num[i] <num[j])  
{  
a = num[i];  
num[i] = num[j];  
num[j] = a;  
}  
}  
}  
printf("Descending order of the elements \n");  
for (i = 0; i< m; ++i)  
{  
printf("%d\n", num[i]);  
}  
} 

It's no surprise that this one pops up often in Wipro technical interview questions.

Bubble sorting is the process of outputting the items of an array in ascending or descending order. Strings can also be sorted using bubble sort. 

Sort the string using the following program: 

#include <stdio.h> 
#include <string.h> 
void main()   
{   
intnum, i, j;   
char name[15][20], temp[20];   
printf("\n Sorts the strings of an array using bubble sort :\n");     
printf("Number of strings :");   
scanf("%d", &num);   
printf("Input string %d :\n", num);   
for(i=0;i<=num; i++)   
{      
fgets(name[i], sizeof name, stdin);   
}   
for(i=1;i<=num;i++)   
for(j=0;j<=num-i;j++)   
if(strcmp(name[j],name[j+1])>0)   
{    
strcpy(temp,name[j]);   
strcpy(name[j],name[j+1]);   
strcpy(name[j+1],temp);   
}   
printf("The strings appears after sorting :\n");   
for(i=0;i<=num;i++)   
printf("%s\n",name[i]);    
} 
#include<conio.h> 
#include<stdio.h> 
void main()    
{   
if(printf("hello world"))   
{   
}   
}   

Output: 

hello world 

In object-oriented programming, polymorphism refers to the fact that a single name can have several variations. 

Polymorphism can be classified into two types: compile-time and runtime. Compile-time polymorphism is often referred to as method overloading, while runtime polymorphism is called method overriding. 

A struct is a data structure that contains both private and public members. The visibility (public, private, or protected) of a member will be public in the struct and private in the class if no access modifier is supplied. By default, visibility extends a bit farther than members: if no inheritance is specified, the struct will inherit openly from its base class, whereas the class will inherit secretly.

A hybrid cloud is an environment for Cloud Computing, Storage, and Services that combines on-premises infrastructure, private cloud services, and a public cloud (such as Amazon Web Services (AWS) or Microsoft Azure) with platform orchestration. In a hybrid cloud infrastructure, your cloud server mixes public clouds, on-premises computing, and private clouds. 

The fundamental benefit of cloud services is their capacity to facilitate quick change in a digital organization. Every corporation in charge of technology has two agendas: IT and business change. The IT strategy is almost usually focused on cost-cutting. Plans for digital business transformation, on the other hand, emphasize revenue generation through investments. 

The fundamental advantage of a hybrid cloud is its flexibility. To acquire the agility required for a competitive edge, your company may want (or need) to integrate public clouds, private clouds, and on-premises resources. 

The following are the benefits of a Thread: 

  • It enables successful communication. 
  • It shortens the time it takes to move between contexts. 
  • Using threads, we may achieve concurrency inside a process. 
  • Thread permits the usage of multiprocessor systems on a bigger scale and with more efficiency. 
  • Multithreading is the process of running many threads at the same time. 

A thread is a lightweight sub-process that is the smallest and smallest unit of processing. 

StringBuilderwas created to be a drop-in replacement for StringBuffer. Because it is not synchronized and is not thread-safe, it can only be used if a single thread accesses the StringBuffer, which is quicker in most circumstances. StringBufferwas created prior to StringBuilder. StringBuffer is synchronized, therefore applications that utilize it require extra memory and time to run.

Yes, method overloading allows you to have an unlimited number of main methods in a Java program. Examine the Advanced Wipro Interview Questions and Answers in this lesson.

When looking for an element, begin your search at the root node. If the data is less than the key value, look for it in the left subtree. In simpler words, this means looking for the element in the correct subtree.

Object-oriented languages adhere to all Object Oriented Programming notions; however, not all Object Oriented Programming concepts, such as inheritance, polymorphism, and so on, are adhered to by object-based languages. 

Objects are not built into object-oriented languages, although they are in object-based languages. Java, C#, Smalltalk, and other object-oriented programming languages are examples, whereas object-based languages include JavaScript, VBScript, and others.

An abstract class and an interface are two types of computer objects that enable a programmer to informally describe one type of object as if it were another type while retaining all the item's original characteristics. Java is the most well-known computer language that makes use of one or both concepts, though there are many similarities between abstract classes and interfaces.

  • Both delete() and free() are used to dynamically deallocate memory. 
  • Although the word "delete" is a C++ keyword, the free() function is a C library function that may also be used in C++. 
  • The free() function deletes a pointer produced with the new operator or a NULL pointer, whereas the delete operator deletes a pointer generated with the malloc(), calloc(), or realloc() methods or a NULL pointer. 
  • The delete operator in C++ invokes the class's destructor when it deletes allocated memory, whereas the free() function does not; it just frees the memory from the heap.  

This must be similar to the current class object because it is related to it. Giving this into a method rather than the current class object has two main advantages:

  • This is the last variable. As a result, no new value may be assigned to this, but the existing class object is not final and can be changed.  
  • 'this' can mostly be used in the synchronized block. 

Individuals must be able to adapt and function in response to changing conditions. At my previous job, where I had started out doing a lot of manual data entry, I was asked to switch to computer software that would perform the work for me. As a non-technical person,it was tough for me to acclimate to the program. I had one of my employees aid me in comprehending the assignment, and I also did my own research on the technology to be able to work with it and provide acceptable results. 

This is one of the popular Wiprohr interview questions 

An Internet Protocol address is a numerical designation assigned to each device (e.g., computer, printer) that participates in a computer network that uses the Internet Protocol for communication (IP address). The primary functions of an IP address are to identify the host or network interface and to address the location. 

A recovery environment is Windows Recovery Environment (Windows RE). It is employed in the repair of frequent reasons of unbootable operating systems. Windows Recovery Environment (Windows RE) is based on the Windows Pre-installation Environment (Windows PE) (Windows PE). Additional drivers, languages, Windows PE Optional Components, and other troubleshooting and diagnostic tools may be simply added. Windows RE is preinstalled by default in Windows 8.1, Windows 10, and Windows Server 2012 R2 installs. 

We may simply access the Windows RE capabilities via the Boot Options menu by following the instructions below: 

  • Select Start, Power, and then hold down the Shift key and click the Restart button. 
  • Start, Settings, Update and Security, and Recovery are the options. 
  • Now, select Restart now under "Advanced starting." 
  • To accomplish this, open the command prompt and type Shutdown /r /o. 

This question is a regular feature in Wipro interview questions for experienced, be ready to tackle it.

The gc() function is used to invoke the Garbage Collector. It is present in both system and runtime classes. When an object is no longer in use, the memory is automatically released. 

Java is a computer language that is type-safe. All variables in a statically typed language must be specified before they may be used. 

Create a method that calculates the distance between a and b, getDistance(a, b). 

import java.util.HashMap; 
import java.util.Map; 
import java.util.PriorityQueue; 
public class PrioRQueueExample { 
public static void main(String[] args){ 
PriorityQueue<Double> pq = new PriorityQueue<Double>((x,y)-> {Double z = y-x;return z.intValue(); }); 
PrioRQueueExample pqe = new PrioRQueueExample(); 
//Number of ATMs to return i.e. K 
int num_ATMs = 3; 
double curr_loc = 0.00; 
Map<String,Double> nallATMLocs = new HashMap<String,Double>(); 
//Map of ATM names and their distance co-ordinates 
nallATMLocs.put("atm1",45.0); 
nallATMLocs.put("atm2",78.0); 
nallATMLocs.put("atm3",54.0); 
nallATMLocs.put("atm4",64.0); 
nallATMLocs.put("atm5",35.0); 
nallATMLocs.put("atm6",42.0); 
nallATMLocs.put("atm7",57.0); 
nallATMLocs.put("atm7",1.00); 
nallATMLocs.forEach((atm,dist) ->{if(pq.size() < num_ATMs){ 
pq.add(pqe.getLocation(curr_loc,dist));} 
else{ 
if( pq.peek() > pqe.getLocation(curr_loc,dist)){ 
pq.poll(); 
pq.add(pqe.getLocation(curr_loc,dist)); 
} 
} 
}); 
pq.forEach(atmLoc -> System.out.println(atmLoc)); 
} 
private double getLocation(double curr,double atm){ 
return atm - curr; 
} 
} 

A UNIQUE constraint is the same as a PRIMARY key, except that each table can have many UNIQUE constraints. Unlike PRIMARY keys, UNIQUE constraints can only accept NULL once. If the restriction is applied to many fields, each field can allow NULL and some values if the sum of the values is unique.

It is case-sensitive in XML when uppercase and lowercase characters are treated differently. When it comes to element type names, attribute names, attribute values, all generic and parameter entity names, and data content, the case is critical (text).  

I'll start by checking to see if the machine sharing the disk is turned on. If that's the case, I'll go over the other files I have access to see if the problem is common. I'll also confirm that I have the necessary rights to view that file. If everything is in order but I still can't view the file, I'll double-check that the applications can transfer it to our local disk. I'll also make sure the file isn't currently in use by someone else. 

We have added a few Wipro automation testing interview questions in between to help those looking for this job. 

Description

These are the top Wipro interview questions and answers to give you an idea of what questions you could be asked in the Wipro interview and how to prepare for them. You can also take recognized Web Development course syllabus to get through the interviews and have your dream job. 

Employers, in general, like to ask questions similar to Wipro technical interview questions to software engineers. Because the number of developers is relatively large, it is difficult to choose the ideal one, which is why technical tests are required. 

Quality also exists in coding, although not all developers understand what that quality is. So, if you're going to interview any developer, these questions will help you choose the best one. 

And we hope you found these Wipro Interview Questions and Answers useful and helpful in your interview preparations. 

While no one can foresee the interviewer's questions, preparation is crucial if you want to work for your desired organization. 

Begin upskilling and reskilling yourself to propel your career forward with knowledgeHut Web Development course syllabus and degrees from world-class colleges. 

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