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| Section | Weight | Objectives |
|---|---|---|
| Design Secure Architectures | 30% | - Secure workloads and applications
|
| Design Cost-Optimized Architectures | 20% | - Cost-effective resource selection
|
| Design High-Performing Architectures | 24% | - Performance scaling
|
| Design Resilient Architectures | 26% | - Highly available architecture
|
This format is for candidates who do not have the time or energy to use a computer or laptop for preparation. The SAA-C03 PDF file includes real SAA-C03 questions, and they can be easily printed and studied at any time. ITCertMagic regularly updates its PDF file to ensure that its readers have access to the updated questions.
NEW QUESTION # 487
[Design High-Performing Architectures]
An ecommerce application uses a PostgreSQL database that runs on an Amazon EC2 instance. During a monthly sales event, database usage increases and causes database connection issues for the application. The traffic is unpredictable for subsequent monthly sales events, which impacts the sales forecast. The company needs to maintain performance when there is an unpredictable increase in traffic.
Which solution resolves this issue in the MOST cost-effective way?
Answer: C
Explanation:
Amazon Aurora Serverless v2 is a cost-effective solution that can automatically scale the database capacity up and down based on the application's needs. It can handle unpredictable traffic spikes without requiring any provisioning or management of database instances. It is compatible with PostgreSQL and offers high performance, availability, and durability1. Reference: 1: AWS Ramp-Up Guide: Architect2, page 312: AWS Certified Solutions Architect - Associate exam guide3, page 9.
NEW QUESTION # 488
A company runs an order management application on AWS. The application allows customers to place orders and pay with a credit card. The company uses an Amazon CloudFront distribution to deliver the application. A security team has set up logging for all incoming requests. The security team needs a solution to generate an alert if any user modifies the logging configuration. Which combination of solutions will meet these requirements? (Choose two.)
Answer: A,D
Explanation:
A). EventBridge Rule: Detects modifications to CloudFront distributions in real time and triggers the Lambda function for further action.
B). ALB + Config: Focuses on ALB security violations, not relevant for CloudFront logging changes.
C). Lambda + SNS: Provides real-time notifications about changes in logging configuration.
D). GuardDuty: Focuses on threat detection, not logging configuration changes.
E). API Gateway + WAF: Unrelated to CloudFront logging changes.
NEW QUESTION # 489
A leading e-commerce company is in need of a storage solution that can be simultaneously accessed by 1000 Linux servers in multiple availability zones. The servers are hosted in EC2 instances that use a hierarchical directory structure via the NFSv4 protocol. The service should be able to handle the rapidly changing data at scale while still maintaining high performance. It should also be highly durable and highly available whenever the servers will pull data from it, with little need for management.
As the Solutions Architect, which of the following services is the most cost-effective choice that you should use to meet the above requirement?
Answer: C
Explanation:
Amazon Web Services (AWS) offers cloud storage services to support a wide range of storage workloads such as EFS, S3 and EBS. You have to understand when you should use Amazon EFS, Amazon S3 and Amazon Elastic Block Store (EBS) based on the specific workloads. In this scenario, the keywords are rapidly changing data and 1000 Linux servers.
Amazon EFS is a file storage service for use with Amazon EC2. Amazon EFS provides a file system interface, file system access semantics (such as strong consistency and file locking), and concurrently- accessible storage for up to thousands of Amazon EC2 instances. EFS provides the same level of high availability and high scalability like S3 however, this service is more suitable for scenarios where it is required to have a POSIX-compatible file system or if you are storing rapidly changing data.
Data that must be updated very frequently might be better served by storage solutions that take into account read and write latencies, such as Amazon EBS volumes, Amazon RDS, Amazon DynamoDB, Amazon EFS, or relational databases running on Amazon EC2.
Amazon EBS is a block-level storage service for use with Amazon EC2. Amazon EBS can deliver performance for workloads that require the lowest-latency access to data from a single EC2 instance.
Amazon S3 is an object storage service. Amazon S3 makes data available through an Internet API that can be accessed anywhere.
In this scenario, EFS is the best answer. As stated above, Amazon EFS provides a file system interface, file system access semantics (such as strong consistency and file locking), and concurrently-accessible storage for up to thousands of Amazon EC2 instances. EFS provides the performance, durability, high availability, and storage capacity needed by the 1000 Linux servers in the scenario.
S3 is incorrect because although this provides the same level of high availability and high scalability like EFS, this service is not suitable for storing data which are rapidly changing, just as mentioned in the above explanation. It is still more effective to use EFS as it offers strong consistency and file locking which the S3 service lacks.
EBS is incorrect because an EBS Volume cannot be shared by multiple instances.
Storage Gateway is incorrect because this is primarily used to extend the storage of your on-premises data center to your AWS Cloud.
References:
https://docs.aws.amazon.com/efs/latest/ug/how-it-works.html
https://aws.amazon.com/efs/features/
https://d1.awsstatic.com/whitepapers/AWS%20Storage%20Services%20Whitepaper-v9.pdf#page=9 Check out this Amazon EFS Cheat Sheet:
https://tutorialsdojo.com/amazon-efs/
NEW QUESTION # 490
A company has multiple VPCs with IPv6 enabled for its suite of web applications. The Solutions Architect tried to deploy a new Amazon EC2 instance but she received an error saying that there is no IP address available on the subnet.
How should the Solutions Architect resolve this problem?
Answer: A
Explanation:
Amazon Virtual Private Cloud (VPC) is a service that lets you launch AWS resources in a logically isolated virtual network that you define. You have complete control over your virtual networking environment, including selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways. You can use both IPv4 and IPv6 for most resources in your virtual private cloud, helping to ensure secure and easy access to resources and applications.
A subnet is a range of IP addresses in your VPC. You can launch AWS resources into a specified subnet.
When you create a VPC, you must specify a range of IPv4 addresses for the VPC in the form of a CIDR block. Each subnet must reside entirely within one Availability Zone and cannot span zones. You can also optionally assign an IPv6 CIDR block to your VPC, and assign IPv6 CIDR blocks to your subnets.
If you have an existing VPC that supports IPv4 only and resources in your subnet that are configured to use IPv4 only, you can enable IPv6 support for your VPC and resources. Your VPC can operate in dual- stack mode - your resources can communicate over IPv4, or IPv6, or both. IPv4 and IPv6 communication are independent of each other. You cannot disable IPv4 support for your VPC and subnets since this is the default IP addressing system for Amazon VPC and Amazon EC2.
By default, a new EC2 instance uses an IPv4 addressing protocol. To fix the problem in the scenario, you need to create a new IPv4 subnet and deploy the EC2 instance in the new subnet.
Hence, the correct answer is: Set up a new IPv4 subnet with a larger CIDR range. Associate the new subnet with the VPC and then launch the instance.
The option that says: Set up a new IPv6-only subnet with a large CIDR range. Associate the new subnet with the VPC then launch the instance is incorrect because you need to add IPv4 subnet first before you can create an IPv6 subnet.
The option that says: Ensure that the VPC has IPv6 CIDRs only. Remove any IPv4 CIDRs associated with the VPC is incorrect because you can't have a VPC with IPv6 CIDRs only. The default IP addressing system in VPC is IPv4. You can only change your VPC to dual-stack mode where your resources can communicate over IPv4, or IPv6, or both, but not exclusively with IPv6 only.
The option that says: Disable the IPv4 support in the VPC and use the available IPv6 addresses is incorrect because you cannot disable the IPv4 support for your VPC and subnets since this is the default IP addressing system.
References:
https://docs.aws.amazon.com/vpc/latest/userguide/vpc-migrate-ipv6.html
https://docs.aws.amazon.com/vpc/latest/userguide/vpc-ip-addressing.html
https://aws.amazon.com/vpc/faqs/
Check out this Amazon VPC Cheat Sheet:
https://tutorialsdojo.com/amazon-vpc/
NEW QUESTION # 491
A company needs to minimize the cost of its 1 Gbps AWS Direct Connect connection. The company's average connection utilization is less than 10%. A solutions architect must recommend a solution that will reduce the cost without compromising security.
Which solution will meet these requirements?
Answer: D
Explanation:
company need to setup a cheaper connection (200 M) but B is incorrect because you can only order port speeds of 1, 10, or 100 Gbps for more flexibility you can go with hosted connection, You can order port speeds between 50 Mbps and 10 Gbps.
https://docs.aws.amazon.com/whitepapers/latest/aws-vpc-connectivity-options/aws-direct-connect.html
NEW QUESTION # 492
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