10+ Enterprise Architect Interview Questions and Answers

I have implemented various design patterns including Singleton, Factory, and Observer in the last project.

• Singleton pattern was used to ensure only one instance of a class exists.

• Factory pattern was used to create objects without specifying the exact class of object that will be created.

• Observer pattern was used to define a one-to-many dependency between objects.

Setting up and maturing Enterprise Architecture practice, proving value to stakeholders, and handling non-cooperating business stakeholders.

• Establish a clear vision and strategy for Enterprise Architecture practice.

• Define the scope, framework, and governance structure for Enterprise Architecture.

• Engage with key stakeholders to understand their needs and align EA initiatives with business goals.

• Demonstrate the value of EA through tangible outcomes such as cost savings, improve...read more

The number of threads and how to handle them depends on the specific application and its requirements.

• The number of threads should be determined based on the workload and available resources.

• Threads can be handled using thread pools, which can limit the number of threads and manage their lifecycle.

• Synchronization mechanisms such as locks and semaphores can be used to ensure thread safety.

• Asynchronous programming can also be used to handle threads and improve performance.

• Monit...read more

Designing an Enterprise Architecture for Wabtech involves creating a comprehensive framework to align business goals with technology solutions and drive innovation.

• Conduct a thorough analysis of Wabtech's current business processes, IT systems, and technology infrastructure.

• Identify key stakeholders and gather their input to understand their requirements and priorities.

• Develop a target architecture that aligns with Wabtech's strategic goals and objectives.

• Produce deliverables...read more

Agile methodology helps in Architecture by promoting flexibility, collaboration, and iterative development.

• Encourages frequent communication and collaboration between team members

• Allows for flexibility and adaptability to changing requirements

• Promotes iterative development and continuous improvement

• Helps in delivering value to customers quickly and efficiently

I address difficult stakeholders by actively listening, understanding their concerns, finding common ground, and maintaining open communication.

• Actively listen to their concerns and perspectives

• Understand their motivations and priorities

• Find common ground and areas of agreement

• Maintain open and transparent communication

• Seek feedback and address any issues promptly

Improve application performance by optimizing code, database, and server resources.

• Identify and fix code bottlenecks

• Optimize database queries and indexing

• Use caching and load balancing

• Upgrade server hardware and software

• Implement performance monitoring and testing

• Consider using a content delivery network (CDN)

A Landing Zone is a secure and well-architected environment for hosting cloud workloads.

• Define the scope and requirements of the Landing Zone

• Create a multi-account structure with AWS Organizations

• Implement security and compliance controls

• Automate the deployment of resources using AWS CloudFormation

• Use AWS Control Tower to simplify the setup process

Data loss prevention is a set of strategies and tools used to prevent sensitive data from being lost, stolen, or compromised.

• It involves identifying and classifying sensitive data

• Implementing policies and procedures to protect the data

• Monitoring and detecting potential data breaches

• Taking action to prevent or mitigate the impact of a breach

• Examples include encryption, access controls, and data backup and recovery

Creating an IT Roadmap involves strategic planning to align technology initiatives with business goals.

• Identify current IT infrastructure and systems

• Assess business goals and objectives

• Prioritize technology initiatives based on business needs

• Develop a timeline for implementation

• Allocate resources and budget accordingly

• Regularly review and update the roadmap

TOGAF (The Open Group Architecture Framework) is a widely used framework for enterprise architecture.

• TOGAF provides a comprehensive approach for designing, planning, implementing, and governing enterprise information architectures.

• It consists of a set of guidelines, best practices, and tools for developing an enterprise architecture.

• TOGAF is based on the concept of the Architecture Development Method (ADM) which outlines a step-by-step approach to creating an enterprise archi...read more

3 Tier Architecture is a client-server architecture consisting of presentation, application, and data tiers.

• Presentation tier: User interface layer that interacts with the user

• Application tier: Business logic layer that processes user requests

• Data tier: Database layer that stores and retrieves data

• Each tier can be developed and maintained independently

• Allows for scalability and flexibility

• Example: Web application with front-end, back-end, and database layers

Immutable class in Java cannot be modified after creation.

• Use the 'final' keyword to make class immutable.

• Make all fields private and final.

• Do not provide setter methods.

• Ensure that any mutable objects within the class are also immutable.

• Return a new instance when modifying the state of the object.