Free & Accurate Amazon AWS Certified Cloud Practitioner Practice Questions | ExamTopics
Free & Accurate Amazon AWS Certified Cloud Practitioner Practice Questions | ExamTopics
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#1~10
01. A company is planning to run a global marketing application in the AWS Cloud. The application will feature videos that can be viewed by users. The company must ensure that all users can view these videos with low latency.
Which AWS service should the company use to meet this requirement?
- A. AWS Auto Scaling
- B. Amazon Kinesis Video Streams
- C. Elastic Load Balancing
- D. Amazon CloudFront
=> D. Amazon CloudFront
The company must ensure that all users can view these videos with low latency.
로우 레이턴시로 콘텐츠 전달, cdn 은 cloudFront 로
02. Which pillar of the AWS Well-Architected Framework refers to the ability of a system to recover from infrastructure or service disruptions and dynamically acquire computing resources to meet demand?
- A. Security
- B. Reliability
- C. Performance efficiency
- D. Cost optimization
=> B. Reliability
pillar: 기둥
recover from infrastructure or service disruptions and dynamically
운영 회복에 관한 것, 안정성
03. Which of the following are benefits of migrating to the AWS Cloud? (Choose two.)
- A. Operational resilience
- B. Discounts for products on Amazon.com
- C. Business agility
- D. Business excellence
- E. Increased staff retention
=>A,C
resilience : 회복력
운영 회복력, 비즈니시 민첩성
04. A company is planning to replace its physical on-premises compute servers with AWS serverless compute services. The company wants to be able to take advantage of advanced technologies quickly after the migration.
Which pillar of the AWS Well-Architected Framework does this plan represent?
- A. Security
- B. Performance efficiency
- C. Operational excellence
- D. Reliability
=> B. Performance efficiency
Performance efficiency: The performance efficiency pillar focuses on the efficient use of computing resources to meet requirements, and how to maintain efficiency as demand changes and technologies evolve.
Operational Excellence: The operational excellence pillar includes how your organization supports your business objectives, your ability to run workloads effectively, gain insight into their operations, and to continuously improve supporting processes and procedures to deliver business value.
I understand why you could think it is C, but I believe the correct answer is B (key part: as demand changes and technologies evolve)
나도 c라고 생각했지만, b이다. 성능 효율성은 컴퓨팅 자원을 효과적으로 사용하고 변화되는 환경에 효율성을 갖추는 것이다.
운영 효율성은 조직이 비즈니스 목적을 이루기위해 운영을 효과적으로 하는 것을 의미한다.
05. A large company has multiple departments. Each department has its own AWS account. Each department has purchased Amazon EC2 Reserved Instances.
Some departments do not use all the Reserved Instances that they purchased, and other departments need more Reserved Instances than they purchased.
The company needs to manage the AWS accounts for all the departments so that the departments can share the Reserved Instances.
Which AWS service or tool should the company use to meet these requirements?
- A. AWS Systems Manager
- B. Cost Explorer
- C. AWS Trusted Advisor
- D. AWS Organizations
=> D. AWS Organizations
여러개의 계정을 통합관리하는 것은 aws organizations 이다.
06. Which component of the AWS global infrastructure is made up of one or more discrete data centers that have redundant power, networking, and connectivity?
- A. AWS Region
- B. Availability Zone
- C. Edge location
- D. AWS Outposts
=> B. Availability Zone
AZ 정의
An Availability Zone (AZ) is a component of the AWS global infrastructure that is made up of one or more discrete data centers that have redundant power, networking, and connectivity. Each AZ is physically separated from other AZs within a region, and is designed to be fault-tolerant and provide low-latency networking.
07. Which duties are the responsibility of a company that is using AWS Lambda? (Choose two.)
- A. Security inside of code
- B. Selection of CPU resources
- C. Patching of operating system
- D. Writing and updating of code
- E. Security of underlying infrastructure
=> A, D
aws lambda는 서버리스 컴퓨팅 서비스이다.
Lambda runs your code on high availability compute infrastructure and performs all the administration of your compute resources. This includes server and operating system maintenance, capacity provisioning and automatic scaling, code and security patch deployment, and code monitoring and logging. All you need to do is supply the code.
사용자는 코드만 신경쓰면 된다.
08. Which AWS services or features provide disaster recovery solutions for Amazon EC2 instances? (Choose two.)
- A. ׀•׀¡2 Reserved Instances
- B. EC2 Amazon Machine Images (AMIs)
- C. Amazon Elastic Block Store (Amazon EBS) snapshots
- D. AWS Shield
- E. Amazon GuardDuty
=> B,C
재난 피해복구로부터 도움이 되는것?
ami, ebs snapshot 을 골랐다. 백업용으로 사용할 수 있다.
You can back up Amazon EC2 instances used by your workload as Amazon Machine Images (AMIs). The AMI is created from snapshots of your instance's root volume and any other EBS volumes attached to your instance. You can use this AMI to launch a restored version of the EC2 instance
09. A company is migrating to the AWS Cloud instead of running its infrastructure on premises.
Which of the following are advantages of this migration? (Choose two.)
- A. Elimination of the need to perform security auditing
- B. Increased global reach and agility
- C. Ability to deploy globally in minutes
- D. Elimination of the cost of IT staff members
- E. Redundancy by default for all compute services
=> B,C
사이트 오류로 또 B,D 라고 뜬다.
10. A user is comparing purchase options for an application that runs on Amazon EC2 and Amazon RDS. The application cannot sustain any interruption. The application experiences a predictable amount of usage, including some seasonal spikes that last only a few weeks at a time. It is not possible to modify the application.
Which purchase option meets these requirements MOST cost-effectively?
- A. Review the AWS Marketplace and buy Partial Upfront Reserved Instances to cover the predicted and seasonal load.
- B. Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run on Spot Instances.
- C. Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run at an On-Demand rate.
- D. Buy Reserved Instances to cover all potential usage that results from the seasonal usage.
=> C. Buy Reserved Instances for the predicted amount of usage throughout the year. Allow any seasonal usage to run at an On-Demand rate.
The application cannot sustain any interruption. => 어플리케이션이 중단되면 안된다. spot instance 활용 불가
#11~20
11. A company wants to review its monthly costs of using Amazon EC2 and Amazon RDS for the past year.
Which AWS service or tool provides this information?
- A. AWS Trusted Advisor
- B. Cost Explorer
- C. Amazon Forecast
- D. Amazon CloudWatch
=> B. Cost Explorer
가격 확인하는 것
12. A company wants to migrate a critical application to AWS. The application has a short runtime. The application is invoked by changes in data or by shifts in system state. The company needs a compute solution that maximizes operational efficiency and minimizes the cost of running the application.
Which AWS solution should the company use to meet these requirements?
- A. Amazon EC2 On-Demand Instances
- B. AWS Lambda
- C. Amazon EC2 Reserved Instances
- D. Amazon EC2 Spot Instances
=> B. AWS Lambda
1. Run code without provisioning or managing infrastructure. Simply write and upload code as a .zip file or container image.
2. Automatically respond to code execution requests at any scale, from a dozen events per day to hundreds of thousands per second.
3. Save costs by paying only for the compute time you use—by per-millisecond—instead of provisioning infrastructure upfront for peak capacity.
헷갈린다.
13. Which AWS service or feature allows users to connect with and deploy AWS services programmatically?
- A. AWS Management Console
- B. AWS Cloud9
- C. AWS CodePipeline
- D. AWS software development kits (SDKs)
=> D. AWS software development kits (SDKs)
AWS software development kits (SDKs) allow users to connect with and deploy AWS services programmatically. AWS provides SDKs for several popular programming languages, including Java, Python, JavaScript, and C++.
14. A company plans to create a data lake that uses Amazon S3.
Which factor will have the MOST effect on cost?
- A. The selection of S3 storage tiers
- B. Charges to transfer existing data into Amazon S3
- C. The addition of S3 bucket policies
- D. S3 ingest fees for each request
=> A. The selection of S3 storage tiers
티어가 가장 큰 요소이다.
15. A company is launching an ecommerce application that must always be available. The application will run on Amazon EC2 instances continuously for the next
12 months.
What is the MOST cost-effective instance purchasing option that meets these requirements?
- A. Spot Instances
- B. Savings Plans
- C. Dedicated Hosts
- D. On-Demand Instances
=> B. Savings Plans
saving plans가 보기 중에 제일 비용 효율적
16. Which AWS service or feature can a company use to determine which business unit is using specific AWS resources?
- A. Cost allocation tags
- B. Key pairs
- C. Amazon Inspector
- D. AWS Trusted Advisor
=> A. Cost allocation tags
cost allocation tags 처음보는 거지만.. 비용할당태그
AWS 비용 할당 태그 사용 - AWS 결제 (amazon.com)
AWS 비용 할당 태그 사용 - AWS 결제
태그는 사용자 또는 AWS가 AWS 리소스에 할당하는 레이블입니다. 각 태그는 키와 값으로 구성됩니다. 각 리소스에 대해 각 태그 키는 고유하며 하나의 값만 가질 수 있습니다. 태그를 이용하면 리
docs.aws.amazon.com
태그는 사용자 또는 AWS가 AWS 리소스에 할당하는 레이블입니다. 각 태그는 키와 값으로 구성됩니다. 각 리소스에 대해 각 태그 키는 고유하며 하나의 값만 가질 수 있습니다. 태그를 이용하면 리소스를 정리할 수 있고, 비용 할당 태그를 이용하면 AWS 비용을 더 자세히 추적할 수 있습니다. 비용 할당 태그를 활성화하면, AWS는 비용 할당 태그를 이용해 비용 할당 보고서의 리소스 비용을 정리하기 때문에 사용자는 쉽게 AWS 비용을 분류하고 추적할 수 있습니다. AWS는 AWS 생성 태그 및 사용자 정의 태그라는 두 가지 유형의 비용 할당 태그를 제공합니다. AWS 또는 AWS Marketplace ISV는 사용자를 위해 AWS 생성 태그를 정의, 생성 및 적용하며, 사용자는 사용자 정의 태그를 정의, 생성 및 적용합니다. 두 유형의 태그 모두 개별적으로 활성화해야만 Cost Explorer나 비용 할당 보고서에 표시됩니다.
17. A company wants to migrate its workloads to AWS, but it lacks expertise in AWS Cloud computing.
Which AWS service or feature will help the company with its migration?
- A. AWS Trusted Advisor
- B. AWS Consulting Partners
- C. AWS Artifacts
- D. AWS Managed Services
=> B. AWS Consulting Partners
AWS Consulting Partners can help the company with its migration to AWS. AWS Consulting Partners are professional services firms that have expertise in implementing, optimizing, and operating AWS solutions.
이것도 의견이 갈리고 있다.
18. Which AWS service or tool should a company use to centrally request and track service limit increases?
- A. AWS Config
- B. Service Quotas
- C. AWS Service Catalog
- D. AWS Budgets
=> B. Service Quotas
AWS 서비스 할당량 - AWS 일반 참조 (amazon.com)
AWS 계정에는 각 AWS 서비스에 대한 기본 할당량(이전에는 제한이라고 함)이 있습니다. 다르게 표시되지 않는 한, 리전별로 각 할당량이 적용됩니다. 일부 할당량에 대한 증가를 요청할 수 있으며 다른 할당량은 늘릴 수 없습니다.
Service QuotasAWS다수에 대한 할당량 관리를 돕는 서비스AWS한 곳에서 서비스를 이용할 수 있습니다. 할당량 값을 조회하는 것과 함께 Service Quotas 콘솔에서 할당량 증가를 요청할 수도 있습니다.
Service Quotas 를 이용해 할당량 관리를 할 수 있다고 한다 .
19. Which documentation does AWS Artifact provide?
- A. Amazon EC2 terms and conditions
- B. AWS ISO certifications
- C. A history of a company's AWS spending
- D. A list of previous-generation Amazon EC2 instance types
=> B. AWS ISO certifications
20. Which task requires using AWS account root user credentials?
- A. Viewing billing information
- B. Changing the AWS Support plan
- C. Starting and stopping Amazon EC2 instances
- D. Opening an AWS Support case
=> B. Changing the AWS Support plan
root 자격증명이 필요한 업무를 고르는 건데 가장 까다로운 업무를 골랐다.
#21~30
21. A company needs to simultaneously process hundreds of requests from different users.
Which combination of AWS services should the company use to build an operationally efficient solution?
- A. Amazon Simple Queue Service (Amazon SQS) and AWS Lambda
- B. AWS Data Pipeline and Amazon EC2
- C. Amazon Kinesis and Amazon Athena
- D. AWS Amplify and AWS AppSync
=> A. Amazon Simple Queue Service (Amazon SQS) and AWS Lambda
수많은 요청 처리를 효율적으로 할려면 sqs, lambda
22. What is the scope of a VPC within the AWS network?
- A. A VPC can span all Availability Zones globally.
- B. A VPC must span at least two subnets in each AWS Region.
- C. A VPC must span at least two edge locations in each AWS Region.
- D. A VPC can span all Availability Zones within an AWS Region.
=> D. A VPC can span all Availability Zones within an AWS Region.
23. Which of the following are components of an AWS Site-to-Site VPN connection? (Choose two.)
- A. AWS Storage Gateway
- B. Virtual private gateway
- C. NAT gateway
- D. Customer gateway
- E. Internet gateway
=> B,D
고객과 virtual private gateway가 연결되면 vpn 커넥션으로 볼 수 있다.
24. A company needs to establish a connection between two VPCs. The VPCs are located in two different AWS Regions. The company wants to use the existing infrastructure of the VPCs for this connection.
Which AWS service or feature can be used to establish this connection?
- A. AWS Client VPN
- B. VPC peering
- C. AWS Direct Connect
- D. VPC endpoints
=> B. VPC peering
vpc peering으로 vpc 간에 연결할 수 있따.
VPC 피어링이란? - Amazon Virtual Private Cloud
VPC 피어링이란? - Amazon Virtual Private Cloud
VPC 피어링이란? Virtual Private Cloud(VPC)는 사용자의 AWS 계정 전용 가상 네트워크입니다. VPC는 AWS 클라우드에서 다른 가상 네트워크와 논리적으로 분리되어 있습니다. AWS 리소스(예: Amazon EC2 인스턴
docs.aws.amazon.com
난 c 골랐는데, vpc peering 서비스도 기억하자
25. According to the AWS shared responsibility model, what responsibility does a customer have when using Amazon RDS to host a database?
- A. Manage connections to the database
- B. Install Microsoft SQL Server
- C. Design encryption-at-rest strategies
- D. Apply minor database patches
=> A. Manage connections to the database
이것도 답이 나뉜다.
db와 연결 관리를 해야한다고 생각함.
26. What are some advantages of using Amazon EC2 instances to host applications in the AWS Cloud instead of on premises? (Choose two.)
- A. EC2 includes operating system patch management.
- B. EC2 integrates with Amazon VPC, AWS CloudTrail, and AWS Identity and Access Management (IAM).
- C. EC2 has a 100% service level agreement (SLA).
- D. EC2 has a flexible, pay-as-you-go pricing model.
- E. EC2 has automatic storage cost optimization.
=> B,D
pay-as-you-go : 사용한 만큼.
27. A user needs to determine whether an Amazon EC2 instance's security groups were modified in the last month.
How can the user see if a change was made?
- A. Use Amazon EC2 to see if the security group was changed.
- B. Use AWS Identity and Access Management (IAM) to see which user or role changed the security group.
- C. Use AWS CloudTrail to see if the security group was changed.
- D. Use Amazon CloudWatch to see if the security group was changed.
=> C. Use AWS CloudTrail to see if the security group was changed.
cloudTrail은 모든 유저활동을 추적한다.
28. Which AWS service will help protect applications running on AWS from DDoS attacks?
- A. Amazon GuardDuty
- B. AWS WAF
- C. AWS Shield
- D. Amazon Inspector
=> C. AWS Shield
firewall is to protect from web app attacks
firewall 은 app-attack 을 막는 용도
29. Which AWS service or feature acts as a firewall for Amazon EC2 instances?
- A. Network ACL
- B. Elastic network interface
- C. Amazon VPC
- D. Security group
=> D. Security group
NACL 은 subnet level 이다 .
30. How does the AWS Cloud pricing model differ from the traditional on-premises storage pricing model?
- A. AWS resources do not incur costs
- B. There are no infrastructure operating costs
- C. There are no upfront cost commitments
- D. There are no software licensing costs
=> C. There are no upfront cost commitments
aws는 선행 비용이 없다고 거듭 강조한다.