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To pass the Amazon SAA-C03 exam, candidates need to demonstrate their expertise in various areas such as designing resilient architectures, selecting appropriate AWS services to meet specific requirements, implementing cost optimization strategies, and securing AWS resources. AWS Certified Solutions Architect - Associate certification exam is an excellent way for IT professionals to showcase their skills and expertise in AWS, which is one of the leading cloud computing platforms in the world. Passing the SAA-C03 Exam can open up many job opportunities in the field of cloud computing and can help professionals advance their careers in this rapidly growing industry.
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Amazon SAA-C03 Exam is updated to reflect the latest AWS services and features, making it a reliable measure of candidates' knowledge and skills in AWS. SAA-C03 exam covers a broad range of topics, including AWS core services, security, database, and networking. Successful candidates are expected to be able to design and deploy scalable, cost-effective solutions that meet the specific needs of their clients or organizations.
NEW QUESTION # 201
[Design Resilient Architectures]
A company hosts a database that runs on an Amazon RDS instance that is deployed to multiple Availability Zones. The company periodically runs a script against the database to report new entries that are added to the database. The script that runs against the database negatively affects the performance of a critical application. The company needs to improve application performance with minimal costs.
Which solution will meet these requirements with the LEAST operational overhead?
Answer: B
Explanation:
A read replica is a copy of the primary database that supports read-only queries. By creating a read replica, you can offload the read workload from the primary database and improve its performance. The script can query the read replica without affecting the critical application that uses the primary database. This solution also has the least operational overhead, as you do not need to modify the script, export the data manually, or manage a cache cluster. Reference:
Working with PostgreSQL, MySQL, and MariaDB Read Replicas
Amazon RDS Performance Insights
NEW QUESTION # 202
A global online sports betting company has its popular web application hosted in AWS. They are planning to develop a new online portal for their new business venture and they hired you to implement the cloud architecture for a new online portal that will accept bets globally for world sports. You started to design the system with a relational database that runs on a single EC2 instance, which requires a single EBS volume that can support up to 30,000 IOPS.
In this scenario, which Amazon EBS volume type can you use that will meet the performance requirements of this new online portal?
Answer: D
Explanation:
The scenario requires a storage type for a relational database with a high IOPS performance. For these scenarios, SSD volumes are more suitable to use instead of HDD volumes. Remember that the dominant performance attribute of SSD is IOPS while HDD is Throughput.
In the exam, always consider the difference between SSD and HDD as shown on the table below. This will allow you to easily eliminate specific EBS-types in the options which are not SSD or not HDD, depending on whether the question asks for a storage type which has small, random I/O operations or large, sequential I/O operations.
Since the requirement is 30,000 IOPS, you have to use an EBS type of Provisioned IOPS SSD. This provides sustained performance for mission-critical low-latency workloads. Hence, EBS Provisioned IOPS SSD (io1) is the correct answer.
EBS Throughput Optimized HDD (st1) and EBS Cold HDD (sc1) are incorrect because these are HDD volumes which are more suitable for large streaming workloads rather than transactional database workloads.
EBS General Purpose SSD (gp2) is incorrect because although a General Purpose SSD volume can be used for this scenario, it does not provide the high IOPS required by the application, unlike the Provisioned IOPS SSD volume.
Explanation:
Reference:
https://aws.amazon.com/ebs/details/
Amazon EBS Overview - SSD vs HDD:
https://www.youtube.com/watch?v=LW7x8wyLFvw
Check out this Amazon EBS Cheat Sheet:
https://tutorialsdojo.com/amazon-ebs/
NEW QUESTION # 203
A company has a three-tier environment on AWS that ingests sensor data from its users' devices The traffic flows through a Network Load Balancer (NIB) then to Amazon EC2 instances for the web tier and finally to EC2 instances for the application tier that makes database calls What should a solutions architect do to improve the security of data in transit to the web tier?
Answer: B
NEW QUESTION # 204
[Design Secure Architectures]
A company has deployed its application on Amazon EC2 instances with an Amazon RDS database. The company used the principle of least privilege to configure the database access credentials. The company's security team wants to protect the application and the database from SQL injection and other web-based attacks.
Which solution will meet these requirements with the LEAST operational overhead?
Answer: D
Explanation:
AWS WAF is a web application firewall that helps protect web applications from common web exploits that could affect application availability, compromise security, or consume excessive resources. AWS WAF allows users to create rules that block, allow, or count web requests based on customizable web security rules. One of the types of rules that can be created is an SQL injection rule, which allows users to specify a list of IP addresses or IP address ranges that they want to allow or block. By using AWS WAF to protect the application, the company can prevent SQL injection and other web-based attacks from reaching the application and the database.
RDS parameter groups are collections of parameters that define how a database instance operates. Users can modify the parameters in a parameter group to change the behavior and performance of the database. By using RDS parameter groups to configure the security settings, the company can enforce best practices such as disabling remote root login, requiring SSL connections, and limiting the maximum number of connections.
The other options are not correct because they do not effectively protect the application and the database from SQL injection and other web-based attacks. Using security groups and network ACLs to secure the database and application servers is not sufficient because they only filter traffic at the network layer, not at the application layer. Using AWS Network Firewall to protect the application and the database is not necessary because it is a stateful firewall service that provides network protection for VPCs, not for individual applications or databases. Using different database accounts in the application code for different functions is a good practice, but it does not prevent SQL injection attacks from exploiting vulnerabilities in the application code.
Reference:
AWS WAF
How AWS WAF works
Working with IP match conditions
Working with DB parameter groups
Amazon RDS security best practices
NEW QUESTION # 205
A company is using a fleet of Amazon EC2 instances to ingest data from on-premises data sources. The data is in JSON format and Ingestion rates can be as high as 1 MB/s. When an EC2 instance is rebooted, the data in-flight is lost. The company's data science team wants to query Ingested data In near-real time.
Which solution provides near-real -time data querying that is scalable with minimal data loss?
Answer: A
NEW QUESTION # 206
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