WalzoneInterview Prep
📞 Interviewing soon? Practice with a realistic AI mock phone interview — it calls you, then scores you. First 15 min FREE →

AWS · Basic · question 4 of 100

What is Amazon EC2, and what are its main features?

📕 Buy this interview preparation book: 100 AWS questions & answers — PDF + EPUB for $5

Amazon EC2, or Elastic Compute Cloud, is a web service that provides scalable compute capacity in the cloud. It allows users to launch and manage virtual servers, called instances, in a matter of minutes. EC2 is one of the core services provided by Amazon Web Services (AWS), and it is widely used by individuals and organizations to run applications, host websites, and process data.

Here are some of the main features of Amazon EC2:

Scalability: EC2 allows users to scale up or down their compute capacity based on their needs. Users can launch instances in minutes and add or remove capacity as required, without worrying about physical hardware limitations.

Flexibility: EC2 provides a variety of instance types that are optimized for different use cases, such as compute-intensive workloads, memory-intensive workloads, and storage-intensive workloads. Users can choose the instance type that best suits their needs.

Security: EC2 provides several security features, such as security groups and network ACLs, that allow users to control access to their instances. Users can also choose to encrypt their data at rest and in transit.

Availability: EC2 instances are deployed across multiple availability zones within a region, which provides high availability and fault tolerance. If an instance fails, another instance can take over automatically.

Cost-effectiveness: EC2 offers several pricing models, including on-demand instances, reserved instances, and spot instances, which can help users save money on their compute costs. Users can choose the pricing model that best suits their needs.

Here are some examples of how EC2 can be used:

Hosting websites and applications: EC2 instances can be used to host websites and applications, providing scalable compute capacity to handle traffic spikes and heavy workloads.

Running batch jobs: EC2 instances can be used to run batch jobs, such as data processing and analytics, without having to provision and manage physical hardware.

Serving as the backend for mobile applications: EC2 instances can be used to serve as the backend for mobile applications, providing scalable and reliable compute capacity to handle user requests.

Overall, Amazon EC2 is a powerful and flexible compute service that can be used for a wide range of use cases. Its scalability, flexibility, security, availability, and cost-effectiveness make it a popular choice for individuals and organizations that need to run applications and process data in the cloud.

Reading is step one. Saying it out loud is the interview. Our AI interviewer calls your phone and runs a realistic AWS interview — then scores it.
📞 Practice AWS — free 15 min
📕 Buy this interview preparation book: 100 AWS questions & answers — PDF + EPUB for $5

All 100 AWS questions · All topics