Unit 5: AWS Compute Services - Practice Quiz

1 What is the main purpose of a cloud compute service?

2 Which factor commonly helps determine the type of compute service needed?

3 What does scalability mean in cloud computing?

4 Which AWS service is primarily used to run virtual servers?

5 What is an EC2 instance?

6 What does an Amazon Machine Image (AMI) provide?

7 Which component controls the processing capacity of an EC2 instance?

8 What is the purpose of an EC2 security group?

9 What is an EC2 key pair commonly used for?

10 Which action changes the size or capacity of an existing EC2 instance?

11 What is an On-Demand EC2 pricing model?

12 Which EC2 pricing option can provide discounts for a commitment to a consistent amount of usage?

13 What are Spot Instances designed to use?

14 Which action can help reduce unnecessary EC2 costs?

15 Which AWS tool helps estimate the cost of planned AWS resources?

16 What is a key feature of a managed compute service?

17 Which AWS service runs code without requiring users to manage servers?

18 What type of computing model does AWS Lambda primarily use?

19 What is a container?

20 Which AWS service is a managed container orchestration service?

21 A company wants to run an application without managing servers and pay only when the application code executes. Which AWS compute service best meets these requirements?

22 A development team needs complete control over the operating system, installed software, and network configuration of its compute environment. Which service should it use?

23 An application experiences predictable traffic during business hours but very little traffic overnight. Which compute design best balances availability and resource efficiency?

24 A company must run a legacy application that requires a custom kernel module. Which AWS compute option is most appropriate?

25 An EC2-based web application must remain available if one Availability Zone fails. Which deployment provides the required resilience?

26 A workload performs continuous video encoding and requires consistently high CPU performance. Which EC2 instance family is the best starting point?

27 An EC2 instance needs permission to read objects from a specific Amazon S3 bucket. What is the recommended approach?

28 A database on EC2 requires a persistent block storage volume whose data must survive an instance stop and start. Which storage option should be used?

29 A fault-tolerant data-processing job can be interrupted and restarted from checkpoints. Which EC2 purchasing option is generally the most cost-effective?

30 A company expects a steady EC2 workload for the next three years but wants flexibility to change instance families and Regions. Which pricing model is most suitable?

31 A test server is needed for 10 hours each weekday and can remain stopped at other times. What is the most direct cost-optimization action?

32 An EC2 instance costs $0.20 per hour On-Demand and runs for 150 hours during a month. Ignoring storage and data transfer, what is the compute cost?

33 A developer wants to deploy a web application by uploading code while AWS handles capacity provisioning, load balancing, scaling, and health monitoring. Which service fits this requirement?

34 An image-processing function must run automatically whenever a new image is uploaded to an S3 bucket. Which architecture is most appropriate?

35 A research team needs to run thousands of queued, independent simulation jobs with varying CPU and memory requirements. Which managed compute service is designed for this workload?

36 A startup wants a simple virtual server bundle that includes compute, storage, networking, and predictable monthly pricing for a small website. Which service is the best fit?

37 A team wants to run Docker containers using AWS-managed orchestration without operating a Kubernetes control plane. Which service should it choose?

38 A company has standardized on Kubernetes and wants a managed AWS service that integrates with its existing Kubernetes tools. Which service is appropriate?

39 A team wants to run ECS tasks without provisioning or managing EC2 worker instances. Which launch option should it use?

40 A CI/CD pipeline builds container images that must be stored privately and then pulled by ECS tasks. Which AWS service should store the images?

41 A workload receives unpredictable bursts, processes each request for up to 18 minutes, requires 6 GiB of memory, and must run an unmodified Linux container. Which AWS compute option best satisfies these constraints with the least infrastructure management?

42 A company must run a licensed network appliance that requires access to a physical CPU socket count and does not support virtualized license mobility. Which compute model is most appropriate?

43 An event-driven image pipeline has no persistent server state, takes 40 seconds per image, and has traffic ranging from zero to thousands of requests per minute. Which design most directly aligns cost with actual execution?

44 A tightly coupled HPC application uses MPI and requires consistently low-latency, high-throughput communication between instances in one Availability Zone. Which EC2 placement strategy is most suitable?

45 An application writes temporary data to an instance store volume. The instance is stopped and later started on different underlying hardware. What should the architect expect?

46 An EC2 instance has an IAM role attached. An application on the instance must call Amazon S3 without storing long-term credentials. Which mechanism supplies the credentials?

47 A stateful EC2 application requires the operating system and in-memory process state to resume after a planned shutdown. The selected instance family and AMI support the feature. Which action is required?

48 Instances in a private subnet need outbound access to operating-system repositories, but unsolicited inbound internet connections must remain blocked. Which architecture meets the requirement without assigning public IPv4 addresses to the instances?

49 A company has a steady $10/hour EC2 On-Demand baseline in one Region and wants a one-year commitment that can also apply to future AWS Fargate usage. Which discount model best fits?

50 A fault-tolerant batch job checkpoints every two minutes and can resume on another instance. Its completion deadline is flexible. Which purchasing option usually provides the largest EC2 discount for this workload?

51 A Linux Regional Standard Reserved Instance has matching attributes for an instance family, but the workload changes to a different size within that family. Which property can preserve the discount automatically?

52 An Auto Scaling group runs 10 instances continuously. Six are a stable baseline; four vary among instance families and may later move to Fargate. Which commitment strategy minimizes lock-in while covering the predictable baseline?

53 A Lambda function has reserved concurrency set to 40 and currently has 40 concurrent invocations. Additional events arrive synchronously through an API. What is the immediate expected result?

54 A team submits thousands of containerized scientific jobs with CPU and memory requirements that vary by job. Jobs may queue until capacity is available. Which managed service is designed to schedule this workload?

55 A Lambda function processing SQS messages fails a subset of records in a batch. The team wants successfully processed records removed while only failed records become visible for retry. What should the function use?

56 A web application deployed with AWS Elastic Beanstalk needs zero-downtime replacement of its environment and a quick rollback path. Which deployment approach best fits?

57 An ECS task on Fargate must pull a private image from Amazon ECR and then access an S3 bucket from application code. Which IAM roles should grant these permissions?

58 An ECS service uses both On-Demand and Spot Fargate capacity. Two tasks must always run on On-Demand capacity, while additional tasks should prefer Spot. Which capacity-provider strategy element guarantees the two baseline tasks?

59 An EKS pod needs read-only access to one S3 bucket, but other pods on the same worker node must not receive that permission. Which approach provides the narrowest identity boundary?

60 An ECS service must keep exactly four healthy tasks during an Availability Zone failure and distribute replacements across the remaining zones. Which combination is essential?