Write a 10-question quiz on the basics of how the internet works (DNS, HTTP, IP addresses, TCP, browsers). Mix 6 multiple-choice and 4 short-answer questions, ordered from easy to hard. After all questions, give an answer key with a one-line explanation for each answer. Keep the whole quiz under 600
Create a 4-week study plan to learn SQL from zero to job-ready basics, for someone with 1 hour on weekdays and 3 hours on weekends. For each week give the goals, the topics per day, one mini-project, and how I'll know I'm ready to move on. End with 3 free resources. Keep the whole plan under 500 wor
Explain "how compound interest works" three ways: (1) to a 10-year-old using an everyday analogy, (2) to a college student with the formula and one worked example, and (3) to a busy professional in two sentences with the one takeaway that matters. Keep each explanation under 120 words.
Explain what this function does as a senior engineer would to a junior teammate: first a one-sentence summary, then a step-by-step walkthrough, then any bugs, edge cases or performance issues, and finally a cleaner version. Keep the whole answer under 450 words. ```js function uniq(arr) { let out