Right Answer: A deadlock in SQL Server occurs when two or more transactions are waiting for each other to release locks on resources, creating a cycle of dependencies that prevents any of the transactions from proceeding. SQL Server automatically detects deadlocks and resolves them by terminating one of the transactions, allowing the other to continue.
Right Answer: The V model is a software development process that illustrates the relationship between development phases and testing phases. It is shaped like a "V," where the left side represents the stages of development (requirements, design, coding) and the right side represents corresponding testing stages (unit testing, integration testing, system testing). Each development phase has a directly associated testing phase to ensure quality at every step.
Right Answer: No, automation does not replace manual testing; it complements it. Both have their own strengths and are used together for effective testing.
Right Answer: Black box testing is a software testing method where the tester evaluates the functionality of an application without knowing its internal code or structure. The focus is on input and output, ensuring the software behaves as expected based on requirements.
Right Answer: I took time off in my academic career to focus on personal development, gain practical experience, and explore different interests that ultimately enhanced my skills and knowledge.
Right Answer: The Bug Life Cycle consists of the following stages:
1. **New**: The bug is identified and reported.
2. **Assigned**: The bug is assigned to a developer for fixing.
3. **Open**: The developer starts working on the bug.
4. **Fixed**: The developer has fixed the bug and it is ready for testing.
5. **Retest**: The tester verifies the fix.
6. **Closed**: The bug is confirmed as fixed and is closed.
7. **Reopened**: If the bug still exists after retesting, it is reopened for further investigation.
These stages help track the status of bugs throughout the development process.
Right Answer: Flexbox, or the Flexible Box Layout, is a CSS layout model that allows items in a container to be arranged and aligned efficiently. It works by defining a container as a flex container using `display: flex;`, which enables its direct children (flex items) to be laid out along a main axis (horizontal or vertical). You can control the alignment, direction, spacing, and size of these items using properties like `flex-direction`, `justify-content`, `align-items`, and `flex-wrap`. This makes it easier to create responsive layouts without using floats or positioning.
Right Answer: The DOM (Document Object Model) is a programming interface for web documents that represents the structure of a webpage as a tree of objects. You can manipulate the DOM using JavaScript by selecting elements (e.g., using `document.getElementById`, `document.querySelector`), modifying their properties (e.g., `element.innerHTML`, `element.style`), adding or removing elements (e.g., `element.appendChild`, `element.remove`), and responding to events (e.g., `element.addEventListener`).
Right Answer: Synchronous code executes sequentially, meaning each operation must complete before the next one starts. Asynchronous code allows operations to run independently, enabling other tasks to proceed without waiting for the previous ones to finish.
Right Answer: Event bubbling is a JavaScript event propagation method where an event starts from the target element and bubbles up to its ancestors in the DOM hierarchy. Event delegation is a technique that involves attaching a single event listener to a parent element to manage events for multiple child elements, leveraging event bubbling to handle events efficiently.
Right Answer: Semantic HTML elements are tags that clearly describe their meaning in a human- and machine-readable way, such as `<header>`, `<article>`, `<footer>`, and `<section>`. They are important because they improve accessibility, enhance SEO, and make the structure of the web page clearer for developers and browsers.