Question 1:
Which EC2 Purchasing Option can provide you the biggest discount, but it is not suitable for critical jobs or databases?
Correct Answer: (3) They offer the largest discounts among EC2 Purchasing Options, making them cost-effective for non-critical workloads. However, they come with the risk of termination, which makes them less suitable for critical jobs or databases that require consistent availability.
Question 2:
What should you use to control traffic in and out of EC2 instances?
Correct Answer: (2) They are specifically designed to control inbound and outbound traffic at the EC2 instance level, allowing you to tailor access and enhance the security of your instances effectively. This understanding is crucial for managing network security within AWS.
Question 3:
How long can you reserve an EC2 Reserved Instance?
Correct Answer: (1) EC2 Reserved Instances can only be reserved for those two specific durations, ensuring you understand the fixed options available for long-term capacity planning within AWS. This knowledge is essential for effectively managing resource costs and availability.
Question 4:
You would like to deploy a High-Performance Computing (HPC) application on EC2 instances. Which EC2 instance type should you choose?
Correct Answer: (2) These EC2 instances are specifically tailored for compute-intensive tasks, making them ideal for High-Performance Computing (HPC) applications that require powerful processors and high performance. This choice aligns perfectly with your need for efficient processing in demanding workloads.
Question 5:
Which EC2 Purchasing Option should you use for an application you plan to run on a server continuously for 1 year?
Correct Answer: (1) They are specifically designed for long-term workloads, allowing you to reserve capacity for 1 or 3 years, ensuring consistency and cost-effectiveness for applications that need to run continuously. This choice effectively aligns with your need for a stable server environment over an extended period.
Question 6:
You are preparing to launch an application that will be hosted on a set of EC2 instances. This application needs some software installation and some OS packages need to be updated during the first launch. What is the best way to achieve this when you launch the EC2 instances?
Correct Answer: (3) Using EC2 User Data allows you to automatically execute a bash script on instance launch, streamlining the process of installing required software and updating OS packages without manual intervention. This method is efficient, especially for managing multiple instances, aligning well with best practices for cloud deployment.
Question 7:
Which EC2 Instance Type should you choose for a critical application that uses an in-memory database?
Correct Answer: (3) These EC2 instances are designed specifically for applications that require significant memory capacity, such as in-memory databases, enabling faster data access and processing. This aligns perfectly with your need for high performance in handling large data sets directly in memory.
Question 8:
You have an e-commerce application with an OLTP database hosted on-premises. This application has popularity which results in its database has thousands of requests per second. You want to migrate the database to an EC2 instance. Which EC2 Instance Type should you choose to handle this high-frequency OLTP database?
Correct Answer: (2) These EC2 instances are specifically designed to handle high, sequential read/write operations on large data sets, making them well-suited for high-frequency OLTP databases like your e-commerce application. This choice directly addresses the need for performance in handling thousands of requests per second efficiently.
Question 9:
Security Groups can be attached to only one EC2 instance.
Correct Answer: (1) Security Groups are designed to be flexible, allowing you to attach the same group to multiple EC2 instances within the same AWS Region or VPC, simplifying management and enhancing security consistency across instances. This understanding aligns with best practices in AWS architecture.
Question 10:
You're planning to migrate on-premises applications to AWS. Your company has strict compliance requirements that require your applications to run on dedicated servers. You also need to use your own server-bound software license to reduce costs. Which EC2 Purchasing Option is suitable for you?
Correct Answer: (2) They provide the required dedicated servers for compliance needs and allow you to use your existing server-bound software licenses, making them highly suitable for your situation. This choice emphasizes your understanding of how to align AWS services with strict compliance and licensing requirements.
Question 11:
You would like to deploy a database technology on an EC2 instance and the vendor license bills you based on the physical cores and underlying network socket visibility. Which EC2 Purchasing Option allows you to get visibility into them?
Correct Answer: (3) They provide you with visibility into the physical cores and network socket configurations, aligning perfectly with the licensing model based on those specifications. This choice demonstrates your understanding of how specific EC2 purchasing options can meet vendor compliance requirements effectively.
Question 12:
Spot Fleet is a set of Spot Instances and optionally ……………
Correct Answer: (2) Spot Fleet can include both Spot Instances and On-Demand Instances, providing flexibility to automatically request the most cost-effective option available while maintaining resource availability. This understanding is key to utilizing EC2's pricing models effectively.
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