EC2 Placement Groups are used to control how EC2 instances are placed on AWS infrastructure for better performance, fault tolerance, or low latency. An Auto Scaling Group (ASG) automatically manages the number of EC2 instances based on traffic and workload demand. AWS Key Management Service (KMS) is a managed service used to create, manage, and control encryption keys for securing data in AWS. The AWS Well-Architected Framework is a set of best practices that helps design secure, reliable, efficient, and cost-effective cloud architectures on AWS.
The key difference between a shallow copy and a deep copy is how they handle references within the copied object. It supports object-oriented programming and is widely adopted for general-purpose development, allowing quick, efficient coding. Sunny Sarkar is a Content Manager with over 8 years of experience in SEO-driven content writing, technical documentation, and content strategy. https://uvik.io/ Prepare to excel in your upcoming interview with our comprehensive set of interview questions, carefully crafted to give you a competitive edge. Additionally, I set up Jenkins to publish Extent Reports and email notifications directly.
In this framework, the same test scripts can run with multiple sets of data, enabling comprehensive coverage and robustness of the tests. A hub is a server or a central point that controls the test executions on different machines. In simple words, it is used to distribute your test execution on multiple platforms and environments concurrently.
Do I need to know API versioning strategies?
- Learn to design NoSQL databases, manage distributed clusters, handle document data and build scalable applications.
- With the ‘Copy’ activity, data can be moved between various source and sink data stores, including Azure Data Lake Storage, Azure Blob Storage, and Azure SQL Database.
- By leveraging these libraries, senior Python developers can effectively communicate insights from data analysis.
- These questions will help you gauge the candidates’ problem-solving skills and their ability to troubleshoot effectively in real-world scenarios.
If you’re determined to make yourself stand out as a Python developer, your best bet is to start practising these coding questions in Python, one coding question at a time. Focus on solving everyday coding problems, mastering the core Python concepts, and always push yourself to consider writing optimized and readable code. Participate in coding challenges and develop small projects to apply your knowledge in real-world scenarios. Once you are comfortable with the basics, learn concepts such as list comprehensions, lambda functions, generators, decorators, and iterators. Gain familiarity with classes, objects, inheritance, polymorphism, and encapsulation.
I designed a service mesh architecture that allowed event-driven communication between loosely coupled services. After that, I would establish end-to-end visibility through project dashboards (Jira, Confluence), monitor for technical risks, and align with all stakeholders in advance through regular demos. Balanced binary search trees, BSTs, and operations such as insert or search also have O(log n) time as they traverse the tree’s height, which scales logarithmically. To prevent abuse, add rate limiting, a link-creation queue, and a click stat counter that runs asynchronously.
This gives a true picture of where CPU time is spent, including tight loops and native code. Async-profiler uses POSIX signals (SIGPROF) and the internal AsyncGetCallTrace API to interrupt threads at any arbitrary point — no safepoint required. Pooling small plain objects often adds synchronisation overhead that outweighs the allocation savings.
Q15. What are Django Forms and ModelForms?
For example, a metaclass could automatically register any new model class with a central registry or enforce that all subclasses must have a certain attribute defined. They allow for reusable logic that can customize attribute access, making them powerful for building frameworks and ORMs. They have a lot of experience leading technical interviews, so they’re well-practiced at helping you show your best skills, and are up to date with our best practices.