Topwise Communications Interview Questions and Answers

Q1. Salary Expectation
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Q2. Work Experience
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Q3. Relocation Plans
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Codility Test General C# and SQL

Q1. (live coding) Create a class Employees with fields FirstName LastName, DoB, and Gender Return avg age of employees, return avg age by genders
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Create a class Employees with fields FirstName LastName, DoB, and Gender. Return avg age of employees and avg age by genders.
• Create a class Employees with fields FirstName, LastName, DoB, and Gender

• Calculate the average age of all employees

• Calculate the average age by genders
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Q2. What design pattern you know
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I am familiar with design patterns such as Singleton, Factory, Observer, and MVC.
• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and up...read more
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Q3. SOLID principles
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Q4. How to optimize SQL Queries
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Optimizing SQL queries involves using indexes, minimizing data retrieval, avoiding unnecessary joins, and optimizing query structure.
• Use indexes on columns frequently used in WHERE clauses

• Minimize data retrieval by selecting only necessary columns

• Avoid unnecessary joins by using EXISTS or IN clauses instead

• Optimize query structure by using appropriate joins and subqueries
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Q5. Which type of Indexes you know
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Types of indexes include clustered, non-clustered, unique, composite, and filtered indexes.
• Clustered index: Physically reorders the data in the table based on the index key.

• Non-clustered index: Contains a sorted list of references to the table data rows.

• Unique index: Ensures that no two rows have the same values in the indexed columns.

• Composite index: Index that is created on multiple columns.

• Filtered index: Index that...read more
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Q6. Have you ever read SQL Execution Plan?
Ans. 
Yes, I have read SQL Execution Plans to optimize query performance.
• I have analyzed SQL Execution Plans to identify bottlenecks in queries.

• I have used SQL Execution Plans to optimize query performance by understanding how the database engine executes queries.

• I have made query optimization recommendations based on SQL Execution Plans.

• I have experience with tools like SQL Server Management Studio to view and analyze Execu
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Q7. .NET Framework DI 3th party tools
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Q8. Are you familiar with MSUnit, xUnit, nUnit
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Q9. Unit Testing libraries (e.g Bogus, Moq..)
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Q1. What questions do you have?
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Q2. How was your interview's?
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Q3. Why you want to change your job?
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Q1. Personal questions they asked?
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Q2. Package details asking in previous process
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Soo easy aptitude exam asked questions

Q1. What is oops in Java,fibo, and sorting
Ans. 
OOPs in Java refers to Object-Oriented Programming concepts, fibo likely refers to Fibonacci sequence, and sorting refers to arranging elements in a specific order.
• OOPs in Java includes concepts like classes, objects, inheritance, polymorphism, and encapsulation.

• Fibo likely refers to the Fibonacci sequence, where each number is the sum of the two preceding ones (e.g. 0, 1, 1, 2, 3, 5, ...).

• Sorting involves arranging el...read more
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Q2. Why is garbage collector is used in java etc more of java questions
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Q3. Can main can be overloaded and overrided
Ans. 
Yes, main can be overloaded but not overridden in C++.
• Main can be overloaded by defining multiple functions with different parameters.

• Example: int main() and int main(int argc, char* argv[])

• Main cannot be overridden as it is a static function of the program.
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Q1. Merge two sorted linked lists
Ans. 
Merge two sorted linked lists into a single sorted linked list
• Create a new linked list to store the merged result

• Iterate through both input linked lists and compare nodes to determine the order in which they should be added to the result list

• Handle cases where one list is longer than the other
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Q2. Check if paranthesis are balanced or not
Ans. 
To check if parentheses are balanced, use a stack data structure to keep track of opening and closing parentheses.
• Use a stack to push opening parentheses and pop when encountering a closing parenthesis

• If stack is empty when encountering a closing parenthesis, return false

• After iterating through all parentheses, if stack is empty, return true
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Q1. Right view of a Binary Search tree
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The right view of a Binary Search Tree shows the nodes that are visible when viewing the tree from the right side.
• The right view of a Binary Search Tree includes the rightmost node at each level.

• Nodes at each level that are not visible from the right side are not included in the right view.

• Example: For the Binary Search Tree with values 1, 2, 3, 4, 5, the right view would be 1, 3, 5.
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Q2. Few javascript questions on how to parse a json object without using inbuilt libraries.
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Q1. Knn algorithm using python
Ans. 
KNN algorithm is a simple and effective machine learning algorithm for classification and regression tasks.
• KNN stands for K-Nearest Neighbors.

• It is a non-parametric, lazy learning algorithm.

• Works by finding the K closest training examples in feature space to a given input data point.

• Classification: Assign the most common class among the K nearest neighbors.

• Regression: Take the average of the K nearest neighbors' target...read more
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Q2. Some LC problem on suffix and prefix
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Q1. Case study on imbalanced dataset
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Q2. Evaluation metrics
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Q1. HR will call you and ask your current roles and responsibilities ?
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Q2. Job designation senior system engineer (IAM, Azure portal, SaaS Applications, API integrations, Vulnerability Management)
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Q1. Do you anything related vulnerability management?
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Q2. How do you support application for sso enablement?
Ans. 
Supporting application for SSO enablement involves configuring authentication settings, integrating with identity providers, and testing functionality.
• Configure authentication settings within the application to enable SSO

• Integrate the application with identity providers such as Okta, Azure AD, or PingFederate

• Test the SSO functionality to ensure seamless user experience

• Provide documentation and training for users on how
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Q3. Haw you handle outages and any regular task you performed?
Ans. 
I handle outages by following established procedures and prioritize tasks based on impact.
• Immediately assess the situation to determine the root cause of the outage

• Communicate with stakeholders to keep them informed of the issue and expected resolution time

• Work with cross-functional teams to troubleshoot and resolve the outage as quickly as possible

• Document the outage incident and steps taken for future reference and i...read more
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Q4. How you deal with change management?
Ans. 
I handle change management by implementing structured processes, communication, and stakeholder involvement.
• Implementing a change management process to track and document changes

• Communicating changes effectively to all stakeholders

• Involving key stakeholders in decision-making and planning

• Ensuring proper testing and validation of changes before implementation
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Q5. How do you enable sso for applications for saas?
Ans. 
Enable SSO for SaaS applications by integrating with identity providers and configuring authentication protocols.
• Integrate with identity providers such as Okta, Azure AD, or Google Workspace

• Configure authentication protocols like SAML, OAuth, or OpenID Connect

• Implement single sign-on functionality in the application code

• Ensure secure communication between the application and the identity provider
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Q6. What is RTO in disaster recovery?
Ans. 
RTO stands for Recovery Time Objective in disaster recovery, representing the targeted duration of time within which a business process must be restored after a disaster.
• RTO is a crucial metric in disaster recovery planning, indicating the maximum acceptable downtime for a system or process.

• It helps organizations determine the resources and strategies needed to recover from a disaster within a specific timeframe.

• For ex...read more
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Q7. Which application you are using to connect servers?
Ans. 
I primarily use SSH (Secure Shell) to connect servers.
• SSH (Secure Shell) is a widely used application for securely connecting to servers

• Other applications like PuTTY, OpenSSH, and WinSCP can also be used for server connections
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Q1. Hiring manager will brief about jd and ask questions based on related job and you are working
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Q2. Do you vulnerability management?
Ans. 
Yes, I am experienced in vulnerability management.
• I have experience in identifying, prioritizing, and mitigating vulnerabilities in systems and networks.

• I am proficient in using vulnerability scanning tools such as Nessus, Qualys, and OpenVAS.

• I have implemented patch management processes to address vulnerabilities in a timely manner.

• I have conducted vulnerability assessments and penetration testing to identify weakness...read more
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Q3. You worked applications were connected or disconnected one?
Ans. 
I have experience working with both connected and disconnected applications.
• I have experience developing applications that can function both online and offline.

• I have worked on projects where data synchronization is crucial for seamless user experience.

• Examples include mobile apps that can work offline and sync data when connected to the internet.
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Q4. Have you taken care of Authorization part?
Ans. 
Yes, I have experience in taking care of the Authorization part in various projects.
• Implemented role-based access control (RBAC) to manage user permissions

• Configured and managed authentication protocols such as OAuth and SAML

• Worked on setting up access control lists (ACLs) for network security

• Experience with managing user roles and permissions in Active Directory

• Utilized single sign-on (SSO) solutions for seamless user
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Q1. Work regarding your job profile
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Q2. Linux related questions
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A test that covers all fundamental topics, including networking, object-oriented programming (OOP), and data structures and algorithms (DSA).

Q1. Write code for quick sort
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Q2. Puzzle
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Java coding questions, basic Java questions.

Q1. Java basics questions.
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Q2. Live coding.
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Q1. Discussion on previous experience and projects.
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Q2. System design question
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Q1. Questions on SQL, Java advanced, personal projects, Java frameworks, UI based questions, Agile methodologies.
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Q2. Interview discussion with the whole team.
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Q1. Benefits discussion.
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Q2. Salary discussion.
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