TIAA Global Business Services Senior System Administrator Interview Questions and Answers

Q1. Be clear with your basics
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Q1. Maven basics, Design Patterns
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Q1. Project related interview questions
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Q1. Salary discussion, Asked some questions
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Q1. Tell me about your 1 project
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Q1. Java 8 features
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Q2. Transaction management in Java
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Transaction management in Java involves managing database transactions to ensure data integrity and consistency.
• Use JDBC or JPA for transaction management

• Begin a transaction with 'beginTransaction()' method

• Commit the transaction with 'commit()' method

• Rollback the transaction with 'rollback()' method
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Q3. Api design using Spring boot
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Api design using Spring boot involves creating RESTful APIs with Spring framework for efficient communication between client and server.
• Use @RestController annotation to define RESTful web services

• Utilize @RequestMapping annotation to map HTTP requests to specific handler methods

• Implement request and response bodies using @RequestBody and @ResponseBody annotations

• Leverage Spring Boot's auto-configuration and embedded s
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Q1. Design patterns and its usages
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Design patterns are reusable solutions to common problems in software design.
• Design patterns help in creating flexible, maintainable, and scalable software.

• Some common design patterns include Singleton, Factory, Observer, and Strategy.

• Each design pattern has a specific purpose and can be applied in different scenarios.

• Understanding design patterns can improve code quality and make development more efficient.
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Q2. System design interview questions
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Q1. Loop in linked list
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A loop in a linked list occurs when a node points to a previously visited node.
• To detect a loop, use two pointers - slow and fast. Move slow by one node and fast by two nodes. If they meet, there is a loop.

• To remove a loop, use the same two pointers approach to find the loop node. Then, move one pointer to the head and both pointers by one node until they meet at the loop start. Set the next of the last node to NULL.

• A ...read more
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Q2. 12 factors of Micro services
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Microservices are small, independent services that work together to form a larger application.
• Decentralized architecture

• Loosely coupled services

• Independent deployment

• Resilience

• Scalability

• Flexibility

• Composability

• Autonomy

• Continuous delivery

• Domain-driven design

• API-based communication

• Containerization
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Q1. Salary discussion
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Analytics case study

Q1. Why do you want to change roles
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Q1. What technologies are you familiar with
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I am familiar with a wide range of technologies including programming languages, databases, cloud services, and development tools.
• Programming languages (e.g. Java, Python, C++)

• Databases (e.g. MySQL, MongoDB, Oracle)

• Cloud services (e.g. AWS, Azure, Google Cloud)

• Development tools (e.g. Git, Jenkins, Docker)
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Q1. Tell me about yourself
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