Explore fundamental concepts of running applications in the cloud using serverless platforms with this quiz on Deno Deploy. Enhance your understanding of deployment, configuration, and the benefits of cloud-based app hosting with easy, practical questions.
Which best describes the main purpose of using Deno Deploy for application hosting?
Explanation: The correct answer is 'To run JavaScript or TypeScript applications seamlessly in the cloud,' as Deno Deploy is focused on hosting such applications online. Designing desktop or mobile apps is not its intended use. It also does not specialize in generating graphical user interfaces automatically. The other options describe different technologies or tools.
What type of service is Deno Deploy categorized as in cloud computing?
Explanation: Deno Deploy operates as a serverless platform, which aligns with Platform-as-a-Service offerings, where infrastructure management is abstracted. Infrastructure-as-a-Service provides more direct hardware control, which is not the primary focus here. Cloud Storage Services are for storing files, while Virtual Private Networks handle secure connectivity, not app deployment.
Which programming languages can you use to write applications for Deno Deploy?
Explanation: Deno Deploy is designed specifically for running JavaScript and TypeScript code in the cloud. Python, Ruby, C#, Java, Go, and Rust are not officially supported for direct execution on this platform. Choosing any of the distractors would not allow application deployment in this serverless environment.
What is a key advantage of deploying applications using a serverless cloud platform like Deno Deploy?
Explanation: Automatic scaling is a major benefit of serverless cloud platforms, adjusting resources as demand changes. Manual server configuration is minimized, not required. Offline availability cannot be guaranteed as deployments are cloud-based and online. Desktop environment support is unrelated to cloud deployment.
Which action typically initiates the deployment of a new application version on a serverless cloud platform?
Explanation: To deploy a new version, users upload their updated source code to the cloud platform, triggering deployment. Desktop shortcuts and hardware drivers are unrelated to cloud deployments. Burning to a CD is an outdated and irrelevant process for cloud-based application updates.
If you want to fix a bug in your live cloud application, what should you do?
Explanation: Fixing bugs requires uploading corrected code to the cloud platform, which automatically updates the deployment. Disconnecting the internet or replacing hardware are not necessary for code fixes. Asking users to uninstall is not practical for cloud-hosted services.
How does serverless cloud deployment often help optimize costs for application developers?
Explanation: Serverless solutions typically bill developers based on actual compute and resource usage, which can be more cost-effective. Fixed fees, hardware purchases, or mandatory license renewals are not typical features of serverless billing models. Always-on resources are not a requirement, helping keep costs flexible.
When your serverless cloud app receives more visitors, what usually happens automatically?
Explanation: Serverless platforms automatically allocate extra resources during traffic spikes to maintain performance. Manual hardware upgrades, shutting down the app, or restricting users through emails are not standard practices in a serverless environment.
Why might you use environment variables when deploying a cloud application?
Explanation: Environment variables keep sensitive data, like API keys, out of source code, enhancing security. Embedding confidential information directly is less secure. Limiting to desktops or randomizing updates are not related to environment variables.
What should developers use to track errors and performance for their cloud applications?
Explanation: Cloud platforms typically offer monitoring and logging features to help developers observe errors and performance in real-time. User complaints provide limited feedback and are not sufficient for thorough monitoring. Shutting off apps or installing anti-virus tools are unrelated to effective monitoring strategies.