Ready for database questions in the developer interview? Understanding databases has become essential for job positions from data analysts to software engineers, especially in our modern era of AI. 👇 To help you prepare, we've summarized 5 frequently asked database interview questions and their answers. #Databases #TechInterview #CodingInterview #softwareengineering
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Educative provides interactive courses for software developers. We are changing how developers continue their education and stay relevant by providing pre-configured learning environments that adapt to match a developer’s skill level. For instructors, Educative provides the best authoring platform for creating interactive content with just a few clicks. Join 1.5 Million developers working at top organizations like Amazon, Netflix, Google, and Stripe. Try Educative’s FREE Trial, which gives you unlimited access to nearly 500 interactive, world-class courses spanning JavaScript and Front-End Development, to System Design and Machine Learning. Join our Newsletter here: https://grokkingtechcareer.substack.com.
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❓ What separates a good candidate from a great candidate? …Mock interview experience! 🥇 Every Olympian you'll watch on TV this summer has practiced for their event by stimulating the real thing over and over until they've perfected it… and so should you! As you progress through the tech interview loop this summer, take advantage of the GitHub 𝗦𝘁𝘂𝗱𝗲𝗻𝘁 𝗣𝗮𝗰𝗸. You'll gain free access to our AI Mock Interviewer throughout the rest of July, where you can engage in as many mock interviews as you need (for no additional cost) to get interview-ready this summer. You'll also get free access to 70+ free courses and 30% off all Educative plans. 🌞 In the process of locking down your first SWE role this summer, make sure you're doing everything you can to be a great candidate! Get started with the GitHub Student Pack and make this the summer where your career begins. 🔗 https://educat.tv/3y2OGx6 #GitHub #softwareengineering #students #programming #TechCareers #coding
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In 2018, Amazon lost over $100M in sales when it crashed on Prime Day. What went wrong… and how will Amazon scale for high demand during Prime Day 2024? 👇 When an e-commerce giant the size of Amazon experiences any amount of downtime, the impact on revenue can be severe. When that downtime happens to occur on Prime Day, the consequences would be catastrophic. Back in 2018, that’s exactly what happened. The outage lasted for several hours. The main Amazon website and mobile app were affected, with users reporting issues accessing product pages, completing purchases, and loading the home page. According to estimates, Amazon lost $100 million in sales during the downtime — an estimated $1.2 million per minute. There are a few key factors that likely contributed to the failure: 1️⃣ 𝐇𝐢𝐠𝐡𝐞𝐫-𝐭𝐡𝐚𝐧-𝐞𝐱𝐩𝐞𝐜𝐭𝐞𝐝 𝐭𝐫𝐚𝐟𝐟𝐢𝐜 𝐬𝐩𝐢𝐤𝐞 This exceeded Amazon’s capacity — despite its preparation. To mitigate these issues in real-time, Amazon attempted to fall back to a simpler frontend page, while blocking international traffic. 2️⃣ 𝐂𝐚𝐬𝐜𝐚𝐝𝐢𝐧𝐠 𝐟𝐚𝐢𝐥𝐮𝐫𝐞𝐬 Though Amazon used a robust microservices architecture, it likely faced issues where service dependencies caused cascaded failures. This was also reported for other Amazon services, such as Twitch, Alexa, and Prime Now. 3️⃣ 𝐃𝐞𝐥𝐚𝐲𝐬 𝐢𝐧 𝐬𝐜𝐚𝐥𝐢𝐧𝐠 While Amazon uses autoscaling to handle surges in traffic, there were delays in scaling up resources due to configuration issues with Amazon’s systems and services. This forced Amazon to manually deploy servers to meet the traffic load, which cost time and money. The surge in traffic was likely the biggest culprit — the system received approximately 63.5 million requests per second(!) on its storage and computational service. 📦 Amazon is a great case study in what it truly takes to scale for traffic during high-demand periods. If you are interested in diving deeper and picking up a few actionable tips, you can check out my comprehensive blog post: >> https://educat.tv/4f40ZK7 #amazon #primeday #amazonprime #amazonprimeday #systemdesign
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🦇 Are all the horror stories around coding interview take-home assessments true? Well… not exactly. Demystify the rumors of the dreaded coding take-home assignment down below! 🌞 As you progress through the entire interview loop this summer to land your first SWE job, utilize the GitHub 𝗦𝘁𝘂𝗱𝗲𝗻𝘁 𝗣𝗮𝗰𝗸. Take advantage of this limited-time deal to bolster your interview skills and crush any coding assignment that comes your way during the full interview loop! You'll get free access to 70+ courses, 30% off all Educative plans, and free access to our AI Mock Interviewer throughout July, where you can engage in as many mock interviews as you need to get interview-ready this summer. Get started with the GitHub Student Pack, which is linked below. 🔗 https://educat.tv/4f548cD #GitHub #softwareengineering #students #programming #TechCareers #coding
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🌊 Get started with data visualization in Python with this one-stop-shop for everything Seaborn! 🐍 Seaborn is a Python library that simplifies statistical graphs, aggregation, and informative visuals. For anyone interested in Data Science and analytics, Seaborn is a critical tool to have in your toolkit. Use this free and comprehensive cheatsheet to guide your entire Seaborn journey, from installation to complete mastery! 🔗 Looking for more free cheatsheets and guides? You're in luck! Check out our full roster of downloadable cheatsheets: [link] 💬Didn't find what you were looking for? Let us know below what concepts, technologies, or skills you'd like to see in a cheatsheet. #Seaborn #DataScience #DataVisualization #Python #programming
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❓Learning how to code in Python? 👉 Accomplish your goal in just 5 steps! Everyone prefers different learning styles and paces, making every learning journey unique. However, while learning Python, you must complete each of these 5 general steps if you want to succeed: 1️⃣ Get set up and familiar with the systems 2️⃣ Start with learning the basics of Python 3️⃣ Get hands-on with simple projects 4️⃣ Explore Python's libraries and frameworks 5️⃣ Engage with the Python community and dive deeper 💬 What do you think? If you've been there before, what precisely should beginners be wary of as they begin their Python journeys? #learntocode #Python #programming #softwareengineering