Q161. What is a Kubernetes namespace?
A namespace is a virtual cluster inside a physical cluster. It scopes names, RBAC, resource quotas, and network policies. - Objects such as Pods, Services, and ConfigMaps...
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Q162. What is the difference between EC2 instance store and EBS?
Both provide block storage to EC2, but with different durability and lifecycle. - Instance store is physically attached NVMe or SSD storage on the host. It offers very hi...
Q163. Which are valid SQL comments?
SQL supports both single-line and multi-line commenting syntax across relational database engines: ### 1. Single-Line Standard Comment (`--`): The official ANSI SQL stand...
Q164. What are the basic data types in TypeScript?
TypeScript adds static typing on top of JavaScript, categorizing data types into primitives, composite structures, and special utility types: ### 1. Primitives: - **`bool...
Q165. What are lambda expressions or arrow functions?
**Arrow functions** (also known as "lambda expressions") provide a concise syntax for writing function expressions in JavaScript. Introduced in ES6, arrow functions are o...
Q166. What is the difference between state and props?
In React, both **state** and **props** are plain JavaScript objects, but they serve different purposes and have distinct behaviors: ### State - **Definition:** State is a...
Q167. What is Next.js?
**Next.js** is an open-source React framework developed and maintained by Vercel that enables developers to build high-performance, full-stack web applications. ### Core ...
Q168. What is Vue.js?
**Vue.js** is an open-source, progressive Javascript framework for building user interfaces that aim to be incrementally adoptable. The core library of VueJS is focused o...
Q169. What is the difference between div element and span element?
The div element is a block-level element that is used to group and organize other HTML elements while span element is an inline-element that is used to apply style or att...
Q170. What is tuple datatype in TypeScript?
In TypeScript, a tuple is a type that allows you to define an array with a fixed number of elements of different types. Tuples are similar to arrays, but the types of ele...