Wipro Exchange Administrator Interview Questions and Answers

1 hr test with mcq and coding snippet

Q1. What are pointers in c?
Ans. 
Pointers are variables that store memory addresses of other variables in C programming language.
• Pointers are used to manipulate data structures like arrays, linked lists, and trees.

• They can be used to pass values by reference to functions.

• Pointers can also be used to allocate memory dynamically using functions like malloc() and calloc().
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Q2. Write a linked list program.
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A linked list program is a data structure that stores a sequence of elements with pointers to the next element.
• Create a Node class with a value and a next pointer

• Create a LinkedList class with a head pointer and methods to add, remove, and traverse nodes

• Example: LinkedList ll = new LinkedList(); ll.add(5); ll.add(10); ll.remove(5);
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Q3. Applications of data structures
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Data structures are used to organize and manipulate data efficiently in various applications.
• Data structures are used in databases to store and retrieve data quickly.

• In computer graphics, data structures are used to represent geometric objects.

• Data structures are used in algorithms such as sorting and searching.

• In networking, data structures are used to represent network packets and routing tables.

• Data structures are u...read more
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Q4. Algorithm for merge sort
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Merge sort is a divide and conquer algorithm that recursively divides the input array into two halves, sorts them and then merges them.
• Divide the array into two halves

• Recursively sort the two halves

• Merge the sorted halves

• Repeat until the entire array is sorted
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Q5. Cloud computing application in real world in project
Ans. 
Cloud computing is widely used in various industries for data storage, processing, and analysis.
• Cloud computing allows for easy scalability and cost-effectiveness in managing large amounts of data.

• Real-time collaboration and access to data from anywhere are some of the benefits of cloud computing.

• Examples of cloud computing applications in real-world projects include Amazon Web Services (AWS), Microsoft Azure, and Goog...read more
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Q6. Java and nodejs questions
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Sitting arrangement questions

Blood group relationship

Cloud computing Testing

HTML css java script

What is DATA base management system

Q1. Tell me about your self
Ans. My name is sumalata vastrad iam from Gadag I did my graduation in BCA from Karnataka University dharwad currently iam researching jobs i did my schooling from Howrah
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Q2. Family background detailed
Ans. I belong to a nuclear family we are four members in my family father, mother younger brother and me
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Q3. Company background detailed
Ans. Enable business outcome for client through global managaed service for networking data centre cloud in structure founded in 1988
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Q4. What is DATA structure
Ans. 
A data structure is a way of organizing and storing data in a computer so that it can be accessed and manipulated efficiently.
• Data structures provide a means to manage and organize data in a logical and efficient manner.

• They define the relationship between the data, allowing for easy retrieval and modification.

• Examples of data structures include arrays, linked lists, stacks, queues, trees, and graphs.
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Q5. Definition of java and benifit of java
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Java is a popular programming language known for its platform independence and extensive libraries.
• Java is an object-oriented language that allows developers to write code once and run it on any platform.

• It provides a robust and secure environment for developing and executing applications.

• Java has a vast collection of libraries and frameworks that simplify development and enhance productivity.

• It supports multithreading...read more
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Q6. Characters of java script
Ans. 
JavaScript characters include letters, numbers, symbols, and special characters.
• JavaScript characters can be used to create strings, numbers, and perform operations.

• Examples of JavaScript characters include 'a', '1', '$', and '&'.
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Q7. What is software engineer (se)
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A software engineer is a professional who designs, develops, and maintains software applications.
• Software engineers use programming languages and tools to create software solutions.

• They analyze user requirements and design software architecture.

• Software engineers write code, test and debug software, and ensure its functionality.

• They collaborate with other team members and follow software development best practices.

• Exam...read more
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Q8. What are the model of software engineerwat
Ans. 
The models of software engineering refer to different approaches or methodologies used in software development.
• Waterfall model

• Agile model

• Iterative model

• Spiral model

• V-model
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Q9. Explain resk management system
Ans. 
A risk management system is a software tool or platform that helps organizations identify, assess, and mitigate risks.
• A risk management system helps organizations identify potential risks and their impact on business operations.

• It assesses the likelihood of risks occurring and the severity of their impact.

• The system provides tools for documenting and tracking risks, assigning responsibilities, and implementing mitigati...read more
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Q10. What is operating system
Ans. 
An operating system is a software that manages computer hardware and software resources and provides common services for computer programs.
• Manages computer hardware and software resources

• Provides common services for computer programs

• Controls and coordinates computer operations

• Acts as an intermediary between users and computer hardware

• Examples: Windows, macOS, Linux, Android, iOS
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Q11. DefiNe software testing
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Software testing is the process of evaluating a software system to identify defects or errors.
• Software testing is essential to ensure the quality and reliability of software.

• It involves executing the software with the intention of finding bugs or issues.

• Testing can be done manually or using automated tools.

• Different types of testing include unit testing, integration testing, system testing, and acceptance testing.

• Examp...read more
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Q1. Tell me about your self
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Q2. Family background detailed
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Q3. Company background detailed
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Q1. What is your name please tell Detailed NTT
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Q2. NTT DATA company background detailed
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Q3. Tell me your self introduction
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Cloud computing Testing

Blood group relationship

Sitting arrangement questions

Alphabet letter coding

Q1. Tell me about your self
Ans. My name is sumalata vastrad iam from Gadag I did my graduation in BCA from Karnataka University dharwad currently iam researching jobs i did my schooling from Howrah
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Q2. Family background detailed
Ans. I belong to a nuclear family we are four members in my family father, mother younger brother and me
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Q3. Company background detailed
Ans. Founded in 1988 enable business out come for client
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Blood group relationship between parents and children

Blood group relationship between parents and children

Q1. What are indexes in the database? what is the difference between clustered and non-clustered indexes?
Ans. 
Indexes are used to improve database performance. Clustered indexes determine the physical order of data, while non-clustered indexes do not.
• Indexes are used to speed up data retrieval operations in a database.

• Clustered indexes determine the physical order of data in a table, while non-clustered indexes do not.

• A table can have only one clustered index, but multiple non-clustered indexes.

• Clustered indexes are generally ...read more
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Q2. Write a query to delete duplicate rows from a table.
Ans. 
Query to delete duplicate rows from a table
• Use GROUP BY clause to group the rows by their unique values

• Use HAVING clause to filter out the groups with count greater than 1

• Use DELETE statement to delete the duplicate rows
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Q3. Class A { public string A() { return "hello"; } } what is wrong with above code?
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Q4. What is a singleton pattern and how to implement it?
Ans. 
Singleton pattern restricts the instantiation of a class to a single instance and provides a global point of access to it.
• Create a private constructor to restrict instantiation of the class

• Create a private static instance of the class

• Create a public static method to access the instance

• Ensure thread safety if necessary

• Examples: Database connection, Logger, Configuration settings
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Q5. How do you handle exceptions in stored procedures?
Ans. 
Handle exceptions in stored procedures by using TRY-CATCH blocks.
• Use TRY-CATCH blocks to catch and handle exceptions

• Log the error message and severity level

• Rollback the transaction if necessary

• Rethrow the error if it cannot be handled

• Use RAISERROR to raise custom error messages
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Q6. Explain SOLID principles.
Ans. 
SOLID principles are a set of five design principles that help in creating maintainable and scalable software.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open-Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Subtypes should be substitutable for their base types.

• I - Interface Segregation Principle: C...read more
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Q7. Difference between throw and throw exception?
Ans. 
throw is used to throw an exception while throw exception is used to throw a specific exception.
• throw is used to throw any type of exception while throw exception is used to throw a specific type of exception.

• throw exception is followed by the type of exception that needs to be thrown.

• throw can be used to throw any object while throw exception can only be used to throw an exception object.

• Example: throw new Exception("
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Q1. How will you install, support and manage platform
Ans. 
I will use a combination of automation tools and manual processes to install, support and manage the platform.
• I will use automation tools like Ansible, Puppet or Chef to automate the installation process.

• I will create documentation and provide training to support the platform.

• I will monitor the platform using tools like Nagios or Zabbix to ensure it is running smoothly.

• I will provide support to users and troubleshoot a...read more
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Q2. How will you do capacity planning
Ans. 
Capacity planning involves estimating future resource needs based on current and projected usage.
• Analyze current usage patterns and trends

• Forecast future demand based on growth projections

• Consider potential changes in technology or business needs

• Identify potential bottlenecks and plan for scalability

• Regularly review and adjust plans as needed
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Q1. Hashmap, linkedlist, arraylist, collection interface
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Q2. Small coding questions on collection interface
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Q1. Managerial round, questions were on certain scenarios like production issues and how to handle them
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Q1. Relocation, salary discussion
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Q1. Diff between HANA and ECC
Ans. 
HANA is an in-memory database platform while ECC is a traditional ERP system.
• HANA is designed to handle large amounts of data in real-time while ECC is not optimized for real-time processing.

• HANA uses column-based storage while ECC uses row-based storage.

• HANA has a simpler data model and can handle unstructured data while ECC has a more complex data model.

• HANA is a newer technology while ECC has been around for decades...read more
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Q2. Must know the details of FM's used in devlops
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Java, micro service, spring boot

Q1. Micro service basics
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Q2. Simple Java programming
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Q3. Basic questions of SQL queries
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Q4. Questions from project related
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