Hosting VPS & Cloud Hosting 3 — Questions and Answers
Question 1: Which cloud hosting model provides virtualized computing resources over the internet on demand?
- SaaS
- PaaS
- IaaS (Correct answer)
- FaaS
Correct answer: IaaS
IaaS (Infrastructure as a Service) provides virtualized computing resources like VMs, storage, and networking over the internet on a pay-as-you-go basis.
Question 2: What is the purpose of a load balancer in a cloud hosting setup?
- To compress website files
- To distribute incoming traffic evenly across multiple servers (Correct answer)
- To encrypt SSL certificates
- To cache database queries
Correct answer: To distribute incoming traffic evenly across multiple servers
A load balancer distributes incoming web traffic across multiple servers to prevent any single server from becoming overwhelmed and to improve availability.
Question 3: What is 'object storage' in cloud hosting (e.g., AWS S3)?
- A relational database service
- A scalable service for storing unstructured files like images and backups (Correct answer)
- A virtual machine disk type
- A DNS record type
Correct answer: A scalable service for storing unstructured files like images and backups
Object storage like AWS S3 is a scalable service designed to store and retrieve any amount of unstructured data such as images, videos, and backups.
Question 4: What does 'auto-scaling' mean in cloud hosting?
- Automatically updating the server OS
- Automatically adjusting the number of server instances based on traffic load (Correct answer)
- Automatically renewing SSL certificates
- Automatically backing up databases
Correct answer: Automatically adjusting the number of server instances based on traffic load
Auto-scaling automatically adds or removes server instances based on real-time traffic load, ensuring performance during peaks and cost savings during low traffic.
Question 5: Which US cloud provider region is commonly labeled 'us-east-1'?
- California
- Oregon
- Northern Virginia (Correct answer)
- Ohio
Correct answer: Northern Virginia
us-east-1 is the AWS region identifier for Northern Virginia (N. Virginia), which was the first AWS region and remains the default for many services.
Question 6: What is a CDN and how does it relate to cloud hosting?
- A database service for cloud apps
- A network of distributed servers that caches and delivers content from locations closest to users (Correct answer)
- A cloud billing dashboard
- A container orchestration platform
Correct answer: A network of distributed servers that caches and delivers content from locations closest to users
A CDN (Content Delivery Network) is a global network of servers that caches static content and delivers it from the server geographically closest to each visitor.
Hosting VPS & Cloud Hosting 3
Which cloud hosting model provides virtualized computing resources over the internet on demand?