UST Technical Lead 1 Interview Questions and Answers

Q1. Work regarding your job profile
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Q2. Linux related questions
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Q1. Fake Interview, Didn't expect this from virtusa
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Q2. FakeInterviews conducted, Didn;t expect this from virtusa
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Q3. Virtusa Scammers
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Q1. Describe 5 non functional requirements
Ans. 
Non functional requirements are criteria that specify how a system should behave, rather than what it should do.
• Performance - system should respond within 2 seconds for all user interactions

• Scalability - system should be able to handle 1000 concurrent users

• Reliability - system should have a 99.99% uptime

• Security - system should encrypt all sensitive data

• Usability - system should have a user-friendly interface
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Q2. How will you improve performance of legacy app which has to work with your latest microservice.
Ans. 
Improve legacy app performance by optimizing code, implementing caching, and scaling resources.
• Optimize code by identifying and removing bottlenecks

• Implement caching to reduce database calls and improve response time

• Scale resources by using containers or serverless architecture

• Use asynchronous processing for long-running tasks

• Upgrade hardware or infrastructure if necessary
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Q1. Explain security in microservices
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Security in microservices involves implementing authentication, authorization, encryption, and monitoring to protect data and services.
• Implement authentication and authorization mechanisms to control access to microservices.

• Use encryption to secure communication between microservices and external clients.

• Implement monitoring and logging to detect and respond to security incidents.

• Consider using API gateways for central...read more
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Q2. Describe microservices architecture for a wealth management app
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Microservices architecture for a wealth management app involves breaking down the application into smaller, independent services.
• Each microservice focuses on a specific business function, such as client onboarding, portfolio management, or reporting.

• Services communicate through APIs, allowing for flexibility and scalability.

• Each microservice can be developed, deployed, and scaled independently, leading to faster develo...read more
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Hacker Rank test, problem solving. Java 8

Q1. Java 8 feature related questions.
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Q2. Jvm architecture and memory management
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Q3. Sql self join query and query tuning
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Q4. Spring boot microservices design pattern discussion
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Q1. Problem solving based on java and case study
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Q2. Team handling and management skills
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Q3. Docker and Orchetratetion framework
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Q4. Aws cloud and cicd and related technologies
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Q1. Python code snippets for different codes
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Q2. SQL Queries on Joins
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Q1. Tell me about your framework
Ans. 
My framework is a comprehensive set of tools, libraries, and best practices that I use to streamline the development process and ensure high-quality deliverables.
• Utilizes design patterns such as MVC for structuring code

• Includes libraries for common tasks like data manipulation and networking

• Emphasizes unit testing and continuous integration for code quality

• Integrates with popular tools like Git for version control

• Suppo...read more
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Q2. Type of selenium waits
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Types of Selenium waits include implicit, explicit, and fluent waits.
• Implicit wait: Waits for a certain amount of time before throwing a NoSuchElementException.

• Explicit wait: Waits for a certain condition to occur before proceeding further.

• Fluent wait: Waits for a condition to be true with a defined polling frequency.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
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Q3. Xpath and CSS difference
Ans. 
XPath is used to navigate through XML documents, while CSS is used to style HTML elements.
• XPath is more powerful and flexible for navigating XML documents

• CSS is more commonly used for styling HTML elements

• XPath uses path expressions to select nodes in an XML document

• CSS uses selectors to target specific HTML elements
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Q4. Coding to check list
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Talk about one of three topics for 2 mins

Q1. What is DHCP and why do we use it what is dns How does DHCP work in a network What is the role of a router What is a gateway How to boot into safemode
Ans. 
DHCP is a network protocol that automatically assigns IP addresses to devices, DNS translates domain names to IP addresses, routers connect networks, gateways connect networks with different protocols, booting into safe mode allows troubleshooting.
• DHCP automatically assigns IP addresses to devices on a network

• DNS translates domain names to IP addresses for easier access

• Routers connect different networks together to ena...read more
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Q2. What is IP address What are the classes of IP What is workgroup and domain What is BSOD What is 32 bit and 64 bit OS SSD vs HDD explain windows boot process System keeps restarting. Steps to resolve how to...read more
Ans. 
IP address is a unique identifier assigned to each device connected to a network. Classes of IP include A, B, C, D, and E. Workgroup and domain are network organization structures. BSOD is Blue Screen of Death.
• IP address is a unique numerical label assigned to each device on a network

• Classes of IP include A, B, C, D, and E with different ranges of addresses

• Workgroup is a peer-to-peer network where each computer has its...read more
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Q1. Delete vs Drop in sql?
Ans. 
DELETE is used to remove rows from a table while keeping the table structure intact. DROP is used to remove an entire table from the database.
• DELETE is a DML (Data Manipulation Language) command, while DROP is a DDL (Data Definition Language) command.

• DELETE can be rolled back, while DROP cannot be rolled back.

• Example: DELETE FROM table_name WHERE condition; DROP TABLE table_name;
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Q2. Autocalender, duicate vs refrence in power bi
Ans. 
Autocalender creates a date table automatically, while duplicate creates a copy of a table and reference creates a linked table in Power BI.
• Autocalender automatically generates a date table based on the data in your model.

• Duplicate creates a copy of a table with the same data and structure.

• Reference creates a linked table that shares the same data as the original table.

• Autocalender is useful for quickly creating date t...read more
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