Q1. Explain the difference between a Deployment and a StatefulSet.
Both manage Pods, but they make different guarantees. Deployment: - Manages stateless, interchangeable replicas identified by a random suffix. - Supports rolling updates ...
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Q2. What is the difference between an Application Load Balancer and a Network Load Balancer?
Both are Elastic Load Balancers, but they operate at different OSI layers. - Application Load Balancer (layer 7) understands HTTP and HTTPS, supports host and path-based ...
Q3. What is the N+1 problem in GraphQL and how do you solve it?
Resolvers run per field. If a list resolver returns N items and a child field resolver loads related data one item at a time, you get one query for the list plus N querie...
Q4. How does SvelteKit routing and data loading work?
SvelteKit uses filesystem routing under src/routes. A +page.svelte renders a page, +page.js or +page.server.js exports a load function that runs before the page and retur...
Q5. What is Composer and what does the autoload section do?
Composer is PHP's dependency manager. It reads composer.json, resolves a version graph and writes composer.lock to pin exact versions for reproducible installs. composer ...
Q6. How do lazy loading and code splitting improve performance?
Lazy loading defers work until it is needed. For images, loading="lazy" and decoding="async" defer off-screen loads, but never lazy-load the LCP image because it delays t...
Q7. What is the difference between overloading and overriding?
Overloading and overriding are different mechanisms that are often confused because both involve the same method name. Overloading is compile-time polymorphism: several m...
Q8. How do Angular route guards and lazy loading work together?
The router supports guards that run during navigation: CanActivate, CanActivateChild, CanDeactivate for unsaved forms, CanMatch for feature flags, and Resolve to prefetch...