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NEW QUESTION # 206
An application is running on multiple Amazon EC2 instances. The company wants to make the application highly available by configuring a load balancer with requests forwarded to the EC2 instances based on URL paths.
Which AWS load balancer will meet these requirements and take the LEAST amount of effort to deploy?
- A. Application Load Balancer
- B. Custom Load Balancer on Amazon EC2
- C. AWS OpsWorks Load Balancer
- D. Network Load Balancer
Answer: A
Explanation:
Explanation
The correct answer is B because Application Load Balancer is an AWS load balancer that will meet the requirements and take the least amount of effort to deploy. Application Load Balancer is a type of Elastic Load Balancing that operates at the application layer (layer 7) of the OSI model and routes requests to targets based on the content of the request. Application Load Balancer supports advanced features, such as path-based routing, host-based routing, and HTTP header-based routing. The other options are incorrect because they are not AWS load balancers that will meet the requirements and take the least amount of effort to deploy. Network Load Balancer is a type of Elastic Load Balancing that operates at the transport layer (layer 4) of the OSI model and routes requests to targets based on the destination IP address and port. Network Load Balancer does not support path-based routing. AWS OpsWorks Load Balancer is not an AWS load balancer, but rather a feature of AWS OpsWorks that enables users to attach an Elastic Load Balancing load balancer to a layer of their stack. Custom Load Balancer on Amazon EC2 is not an AWS load balancer, but rather a user-defined load balancer that runs on an Amazon EC2 instance. Custom Load Balancer on Amazon EC2 requires more effort to deploy and maintain than an AWS load balancer. Reference: Elastic Load Balancing
NEW QUESTION # 207
Which statement describes a characteristic of the AWS global infrastructure?
- A. Edge locations contain multiple AWS Regions.
- B. AWS Regions contain multiple Regional edge caches.
- C. Each data center contains multiple edge locations.
- D. Availability Zones contain multiple data centers.
Answer: D
Explanation:
Availability Zones contain multiple data centers. This is a characteristic of the AWS global infrastructure, which consists of AWS Regions, Availability Zones, and edge locations. AWS Regions are geographically isolated areas that contain multiple Availability Zones. Availability Zones are physically separate locations within an AWS Region that are engineered to be isolated from failures and connected by low-latency, high-throughput, and highly redundant networking. Each Availability Zone contains one or more data centers that house the servers and storage devices that run AWS services. Edge locations are sites that are located closer to the end users and provide caching and content delivery services. AWS Global InfrastructureAWS Certified Cloud Practitioner - aws.amazon.com
NEW QUESTION # 208
Which task must a user perform by using the AWS account root user credentials?
- A. Make changes to AWS production resources.
- B. Access AWS Cost and Usage Reports.
- C. Grant auditors' access to an AWS account for a compliance audit.
- D. Change AWS Support plans.
Answer: D
Explanation:
The AWS account root user is the email address that you used to sign up for AWS. The root user has complete access to all AWS services and resources in the account. You should use the root user only to perform a few account and service management tasks. One of these tasks is changing AWS Support plans, which requires root user credentials. For other tasks, you should create an IAM user or role with the appropriate permissions and use that instead of the root user.
NEW QUESTION # 209
According to security best practices, how should an Amazon EC2 instance be given access to an Amazon S3 bucket?
- A. Hard code an IAM user's secret key and access key directly in the application, and upload the file.
- B. Store the IAM user's secret key and access key in a text file on the EC2 instance, read the keys, then upload the file.
- C. Modify the S3 bucket policy so that any service can upload to it at any time.
- D. Have the EC2 instance assume a role to obtain the privileges to upload the file.
Answer: D
Explanation:
Explanation
According to security best practices, the best way to give an Amazon EC2 instance access to an Amazon S3 bucket is to have the EC2 instance assume a role to obtain the privileges to upload the file. A role is an AWS Identity and Access Management (IAM) entity that defines a set of permissions for making AWS service requests. You can use roles to delegate access to users, applications, or services that don't normally have access to your AWS resources. For example, you can create a role that allows EC2 instances to access S3 buckets, and then attach the role to the EC2 instance. This way, the EC2 instance can assume the role and obtain temporary security credentials to access the S3 bucket. This method is more secure and scalable than storing or hardcoding IAM user credentials on the EC2 instance, as it avoids the risk of exposing or compromising the credentials. It also allows you to manage the permissions centrally and dynamically, and to audit the access using AWS CloudTrail. For more information on how to create and use roles for EC2 instances, see Using an IAM role to grant permissions to applications running on Amazon EC2 instances1 The other options are not recommended for security reasons. Hardcoding or storing IAM user credentials on the EC2 instance is a bad practice, as it exposes the credentials to potential attackers or unauthorized users who can access the instance or the application code. It also makes it difficult to rotate or revoke the credentials, and to track the usage of the credentials. Modifying the S3 bucket policy to allow any service to upload to it at any time is also a bad practice, as it opens the bucket to potential data breaches, data loss, or data corruption. It also violates the principle of least privilege, which states that you should grant only the minimum permissions necessary for a task.
References: Using an IAM role to grant permissions to applications running on Amazon EC2 instances
NEW QUESTION # 210
When designing AWS workloads to be operational even when there are component failures, what is an AWS best practice?
- A. Design for automatic failover to healthy resources.
- B. Perform quarterly disaster recovery tests.
- C. Place the main component on the us-east-1 Region.
- D. Design workloads to fit on a single Amazon EC2 instance.
Answer: A
Explanation:
Explanation
Designing for automatic failover to healthy resources is an AWS best practice when designing AWS workloads to be operational even when there are component failures. This means that you should architect your system to handle the loss of one or more components without impacting the availability or performance of your application. You can use various AWS services and features to achieve this, such as Auto Scaling, Elastic Load Balancing, Amazon Route 53, Amazon CloudFormation, and AWS CloudFormation4.
NEW QUESTION # 211
A company is using a central data platform to manage multiple types of data for its customers. The company wants to use AWS services to discover, transform, and visualize the data.
Which combination of AWS services should the company use to meet these requirements? (Select TWO.)
- A. Amazon Elastic File System (Amazon EFS)
- B. AWS Glue
- C. Amazon Redshift
- D. Amazon Quantum Ledger Database (Amazon QLDB)
- E. Amazon QuickSight
Answer: B,C
Explanation:
Explanation
AWS Glue is a fully managed extract, transform, and load (ETL) service that makes it easy to prepare and load data for analytics. AWS Glue can discover data sources, transform data, and make it available for analysis by using data catalogs and workflows. Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud that enables customers to analyze data using standard SQL and existing business intelligence tools. Amazon Redshift can also integrate with other AWS services to visualize and transform data. Amazon Elastic File System (Amazon EFS) provides a simple, scalable, fully managed elastic NFS file system for use with AWS Cloud services and on-premises resources. Amazon QuickSight is a fast, cloud-powered business intelligence service that makes it easy to deliver insights to everyone in an organization. Amazon Quantum Ledger Database (Amazon QLDB) is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log owned by a central trusted authority.
NEW QUESTION # 212
A company hosts a large amount of data in AWS. The company wants to identify if any of the data should be considered sensitive.
Which AWS service will meet the requirement?
- A. AWS Identity and Access Management (IAM)
- B. Amazon CloudWatch
- C. Amazon Macie
- D. Amazon Inspector
Answer: C
Explanation:
Amazon Macie is a fully managed service that uses machine learning and pattern matching to help you detect, classify, and better protect your sensitive data stored in the AWS Cloud1. Macie can automatically discover and scan your Amazon S3 buckets for sensitive data such as personally identifiable information (PII), financial information, healthcare information, intellectual property, and credentials1. Macie also provides you with a dashboard that shows the type, location, and volume of sensitive data in your AWS environment, as well as alerts and findings on potential security issues1.
The other options are not suitable for identifying sensitive data in AWS. Amazon Inspector is a service that helps you find security vulnerabilities and deviations from best practices in your Amazon EC2 instances2. AWS Identity and Access Management (IAM) is a service that helps you manage access to your AWS resources by creating users, groups, roles, and policies3. Amazon CloudWatch is a service that helps you monitor and troubleshoot your AWS resources and applications by collecting metrics, logs, events, and alarms4.
Reference:
1: What Is Amazon Macie? - Amazon Macie
2: What Is Amazon Inspector? - Amazon Inspector
3: What Is IAM? - AWS Identity and Access Management
4: What Is Amazon CloudWatch? - Amazon CloudWatch
NEW QUESTION # 213
Which AWS services make use of global edge locations'? (Select TWO.)
- A. Amazon CloudFront
- B. AWS Fargate
- C. AWS Global Accelerator
- D. Amazon VPC
- E. AWS Wavelength
Answer: A,C
Explanation:
Explanation
Amazon CloudFront and AWS Global Accelerator are two AWS services that make use of global edge locations. Edge locations are AWS sites that are deployed worldwide in major cities and places with a high population. Edge locations are used to cache data and reduce latency for end-user access1.
Amazon CloudFront is a content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency and high transfer speeds. Amazon CloudFront uses a global network of over 200 edge locations and 13 regional edge caches to cache your content closer to your viewers, improving performance and reducing costs23.
AWS Global Accelerator is a networking service that improves the availability and performance of your applications with local or global users. AWS Global Accelerator uses the AWS global network to route user traffic to the optimal endpoint based on health, performance, and policies. AWS Global Accelerator uses over
100 edge locations to bring your application endpoints closer to your users, reducing network hops and improving user experience45. References: 1: AWS for the Edge - Amazon Web Services (AWS), 2: Content Delivery Network (CDN) - Amazon CloudFront - AWS, 3: Amazon CloudFront Documentation, 4: AWS Global Accelerator - Amazon Web Services, 5: AWS Global Accelerator Documentation
NEW QUESTION # 214
A company is building an application that needs to deliver images and videos globally with minimal latency.
Which approach can the company use to accomplish this in a cost effective manner?
- A. Deliver the content through Amazon CloudFront.
- B. Deliver the content through AWS PrivateLink.
- C. Implement a VPN across multiple AWS Regions.
- D. Store the content on Amazon S3 and enable S3 cross-region replication.
Answer: A
Explanation:
Explanation
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer-friendly environment. It works seamlessly with services including AWS Shield for DDoS mitigation, Amazon S3, Elastic Load Balancing or Amazon EC2 as origins for your applications, and Lambda@Edge to run custom code closer to customers' users and to customize the user experience. By using CloudFront, you can cache your content at the edge locations that are closest to your end users, reducing the network latency and improving the performance of your application. CloudFront also offers a pay-as-you-go pricing model, so you only pay for the data transfer and requests that you use.
NEW QUESTION # 215
Which AWS service is always provided at no charge?
- A. Elastic Load Balancers
- B. AWS Identity and Access Management (IAM)
- C. AWS WAF
- D. Amazon S3
Answer: B
Explanation:
AWS Identity and Access Management (IAM) is a web service that helps you securely control access to AWS resources. You can use IAM to create and manage AWS users and groups, and use permissions to allow and deny their access to AWS resources. IAM is always provided at no charge12. Reference: 1: AWS Identity and Access Management (IAM) - Amazon Web Services (AWS), 2: Which aws service is always provided at no charge? - Brainly.in
NEW QUESTION # 216
A company wants to improve its security and audit posture by limiting Amazon EC2 inbound access.
According to the AWS shared responsibility model, which task is the responsibility of the customer?
- A. Protect the global infrastructure that runs all of the services offered in the AWS Cloud.
- B. Patch and back up Amazon Aurora.
- C. Configure logical access controls for resources, and protect account credentials.
- D. Configure the security used by managed services.
Answer: C
Explanation:
Explanation
According to the AWS shared responsibility model, the customer is responsible for configuring logical access controls for resources, and protecting account credentials. This includes managing IAM user permissions, security group rules, network ACLs, encryption keys, and other aspects of access management1. AWS is responsible for protecting the global infrastructure that runs all of the services offered in the AWS Cloud, such as the hardware, software, networking, and facilities. AWS is also responsible for configuring the security used by managed services, such as Amazon RDS, Amazon DynamoDB, and Amazon Aurora2.
NEW QUESTION # 217
AWS has the ability to achieve lower pay-as-you-go pricing by aggregating usage across hundreds of thousands of users.
This describes which advantage of the AWS Cloud?
- A. Launch globally in minutes
- B. Increase speed and agility
- C. High economies of scale
- D. No guessing about compute capacity
Answer: C
Explanation:
AWS has the ability to achieve lower pay-as-you-go pricing by aggregating usage across hundreds of thousands of users. This means that AWS can leverage its massive scale and purchasing power to reduce the costs of infrastructure, hardware, software, and operations. These savings are then passed on to the customers, who only pay for the resources they use. You can learn more about the AWS pricing model from [this webpage] or [this digital course].
NEW QUESTION # 218
A company wants to use the latest technologies and wants to minimize its capital investment. Instead of upgrading on-premises infrastructure, the company wants to move to the AWS Cloud.
Which AWS Cloud benefit does this scenario describe?
- A. Massive economies of scale
- B. Increased speed to market
- C. The trade of infrastructure expenses for operating expenses
- D. The ability to go global in minutes
Answer: C
Explanation:
The trade of infrastructure expenses for operating expenses is one of the benefits of the AWS Cloud. By moving to the AWS Cloud, the company can avoid the upfront costs of purchasing and maintaining on-premises infrastructure, such as servers, storage, network, and software. Instead, the company can pay only for the AWS resources and services that they use, as they use them. This reduces the risk and complexity of planning and managing IT infrastructure, and allows the company to focus on innovation and growth. Increased speed to market, massive economies of scale, and the ability to go global in minutes are also benefits of the AWS Cloud, but they are not the best ones to describe this scenario. Increased speed to market means that the company can launch new products and services faster by using AWS services and tools. Massive economies of scale means that the company can benefit from the lower costs and higher performance that AWS achieves by operating at a large scale. The ability to go global in minutes means that the company can deploy their applications and data in multiple regions and availability zones around the world to reach their customers faster and improve performance and reliability5
NEW QUESTION # 219
A company has teams that have different job roles and responsibilities. The company's employees often change teams. The company needs to manage permissions for the employees so that the permissions are appropriate for the job responsibilities.
Which IAM resource should the company use to meet this requirement with the LEAST operational overhead?
- A. IAM user groups
- B. IAM instance profiles
- C. IAM policies for individual users
- D. IAM roles
Answer: D
Explanation:
IAM roles are a way of granting temporary permissions to entities that need to access AWS resources, such as users, applications, or services. IAM roles allow customers to assign permissions to entities without having to create or manage IAM users or credentials for them. IAM roles can be assumed by different entities depending on the trust policy attached to the role. For example, IAM roles can be assumed by IAM users in the same or different AWS accounts, AWS services such as EC2 or Lambda, or external identities such as federated users or web identities. IAM roles can also be switched by IAM users to temporarily change their permissions. IAM roles are recommended for managing permissions for employees who often change teams, because they allow customers to define permissions based on job roles and responsibilities, and easily assign or revoke them as needed. IAM roles also reduce the operational overhead of creating, updating, or deleting IAM users or credentials for each employee or team change.
NEW QUESTION # 220
Which statements represent the cost-effectiveness of the AWS Cloud? (Select TWO.)
- A. Users can trade fixed expenses for variable expenses.
- B. AWS offers increased speed and agility.
- C. Users can deploy all over the world in minutes.
- D. AWS is responsible for patching the infrastructure.
- E. Users benefit from economies of scale.
Answer: A,E
Explanation:
Explanation
The statements that represent the cost-effectiveness of the AWS Cloud are:
Users can trade fixed expenses for variable expenses. By using the AWS Cloud, users can pay only for the resources they use, instead of investing in fixed and upfront costs for hardware and software. This can lower the total cost of ownership and increase the return on investment.
Users benefit from economies of scale. By using the AWS Cloud, users can leverage the massive scale and efficiency of AWS to access lower prices and higher performance. AWS passes the cost savings to the users through price reductions and innovations. AWS Cloud Value Framework
NEW QUESTION # 221
A company is running its application in the AWS Cloud. The company wants to periodically review its AWS account for cost optimization opportunities.
Which AWS service or tool can the company use to meet these requirements?
- A. AWS Budgets
- B. AWS Cost Explorer
- C. AWS Pricing Calculator
- D. AWS Trusted Advisor
Answer: B
Explanation:
Explanation
AWS Cost Explorer is an AWS service or tool that the company can use to periodically review its AWS account for cost optimization opportunities. AWS Cost Explorer is a tool that enables the company to visualize, understand, and manage their AWS costs and usage over time. The company can use AWS Cost Explorer to access interactive graphs and tables that show the breakdown of their costs and usage by service, region, account, tag, and more. The company can also use AWS Cost Explorer to forecast their future costs, identify trends and anomalies, and discover potential savings by using Reserved Instances or Savings Plans.
NEW QUESTION # 222
A company wants to manage access and permissions for its third-party software as a service (SaaS) applications. The company wants to use a portal where end users can access assigned AWS accounts and AWS Cloud applications.
Which AWS service should the company use to meet these requirements?
- A. AWS Identity and Access Management (1AM)
- B. AWS Directory Service for Microsoft Active Directory
- C. Amazon Cognito
- D. AWS 1AM Identity Center (AWS Single Sign-On)
Answer: D
Explanation:
AWS IAM Identity Center (AWS Single Sign-On) is the AWS service that the company should use to meet the requirements of managing access and permissions for its third-party SaaS applications. AWS Single Sign-On is a cloud-based service that makes it easy to centrally manage single sign-on (SSO) access to multiple AWS accounts and business applications. You can use AWS Single Sign-On to enable your users to sign in to a user portal with their existing corporate credentials and access all of their assigned accounts and applications from one place4.
NEW QUESTION # 223
A company is migrating a relational database server to the AWS Cloud. The company wants to minimize administrative overhead of database maintenance tasks.
Which AWS service will meet these requirements?
- A. Amazon DynamoDB
- B. Amazon RDS
- C. Amazon EC2
- D. Amazon Redshift
Answer: B
Explanation:
Amazon RDS is the AWS service that will meet the requirements of migrating a relational database server to the AWS Cloud and minimizing administrative overhead of database maintenance tasks. Amazon RDS is a fully managed relational database service that handles routine database tasks, such as provisioning, patching, backup, recovery, failure detection, and repair. Amazon RDS supports several database engines, such as MySQL, PostgreSQL, Oracle, SQL Server, and Amazon Aurora5.
NEW QUESTION # 224
Which of the following are AWS Cloud design principles? (Select TWO.)
- A. Make data-driven decisions to determine cloud architectural design.
- B. Refine operational procedures infrequently.
- C. Pay for compute resources in advance.
- D. Test systems at production scale.
- E. Emphasize manual processes to allow for changes.
Answer: A,D
Explanation:
The correct answers are B and D because making data-driven decisions to determine cloud architectural design and testing systems at production scale are AWS Cloud design principles. Making data-driven decisions to determine cloud architectural design means that users should collect and analyze data from their AWS resources and applications to optimize their performance, availability, security, and cost. Testing systems at production scale means that users should simulate real-world scenarios and load conditions to validate the functionality, reliability, and scalability of their systems. The other options are incorrect because they are not AWS Cloud design principles. Paying for compute resources in advance means that users have to invest heavily in data centers and servers before they know how they will use them. This is not a cloud design principle, but rather a traditional IT model. Emphasizing manual processes to allow for changes means that users have to rely on human intervention and coordination to perform operational tasks and updates. This is not a cloud design principle, but rather a source of inefficiency and error. Refining operational procedures infrequently means that users have to stick to the same methods and practices without adapting to the changing needs and feedback. This is not a cloud design principle, but rather a hindrance to innovation and improvement. Reference: AWS Well-Architected Framework
NEW QUESTION # 225
A company wants to migrate its high-performance computing (HPC) application to Amazon EC2 instances.
The application has multiple components. The application must have fault tolerance and must have the ability to fail over automatically.
Which AWS infrastructure solution will meet these requirements with the LEAST latency between components?
- A. Multiple Availability Zones
- B. Multiple AWS Regions
- C. Regional edge caches
- D. Multiple edge locations
Answer: A
Explanation:
Explanation
Using EC2 instances in multiple Availability Zones is an AWS infrastructure solution that meets the requirements of migrating a high performance computing (HPC) application to AWS with fault tolerance and failover capabilities, and with the least latency between components. An Availability Zone is a physically isolated location within an AWS Region that has its own power, cooling, and network connectivity. EC2 instances within the same Region can communicate with each other using low-latency private IP addresses. By using EC2 instances in multiple Availability Zones, the company can achieve fault tolerance and failover for their HPC application, because they can distribute the workload and data across different locations that are independent of each other. If one Availability Zone becomes unavailable or impaired, the company can redirect the traffic and data to another Availability Zone without affecting the performance and availability of the application5
NEW QUESTION # 226
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