Free PDF Amazon - SAA-C03 - Pass-Sure Latest Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam Test Materials

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Amazon SAA-C03 certification exam is a comprehensive exam that covers a wide range of topics related to AWS, including EC2, S3, RDS, VPC, IAM, and many other services. SAA-C03 exam consists of 65 multiple-choice and multiple-response questions and has a duration of 130 minutes. SAA-C03 exam is available in English, Japanese, Korean, and Simplified Chinese.

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Amazon SAA-C03 exam, also known as the Amazon AWS Certified Solutions Architect - Associate (SAA-C03), is a certification exam that tests candidates' abilities to design and deploy scalable, highly available, and fault-tolerant systems on Amazon Web Services (AWS). Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam certification is essential for IT professionals who want to validate their expertise in AWS architecture and design and is highly sought-after by employers globally.

Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam Sample Questions (Q743-Q748):

NEW QUESTION # 743
An online events registration system is hosted in AWS and uses ECS to host its front-end tier and an RDS configured with Multi-AZ for its database tier.
What are the events that will make Amazon RDS automatically perform a failover to the standby replica?
(Select TWO.)

  • A. Compute unit failure on secondary DB instance
  • B. Storage failure on primary
  • C. In the event of Read Replica failure
  • D. Storage failure on secondary DB instance
  • E. Loss of availability in primary Availability Zone

Answer: B,E

Explanation:
Amazon RDS provides high availability and failover support for DB instances using Multi-AZ deployments. Amazon RDS uses several different technologies to provide failover support. Multi-AZ deployments for Oracle, PostgreSQL, MySQL, and MariaDB DB instances use Amazon's failover technology. SQL Server DB instances use SQL Server Database Mirroring (DBM).
In a Multi-AZ deployment, Amazon RDS automatically provisions and maintains a synchronous standby replica in a different Availability Zone. The primary DB instance is synchronously replicated across Availability Zones to a standby replica to provide data redundancy, eliminate I/O freezes, and minimize latency spikes during system backups. Running a DB instance with high availability can enhance availability during planned system maintenance, and help protect your databases against DB instance failure and Availability Zone disruption.
Amazon RDS detects and automatically recovers from the most common failure scenarios for Multi-AZ deployments so that you can resume database operations as quickly as possible without administrative intervention.

The high-availability feature is not a scaling solution for read-only scenarios; you cannot use a standby replica to serve read traffic. To service read-only traffic, you should use a Read Replica. Amazon RDS automatically performs a failover in the event of any of the following:
Loss of availability in primary Availability Zone.
Loss of network connectivity to primary.
Compute unit failure on primary.
Storage failure on primary.
Hence, the correct answers are:
- Loss of availability in primary Availability Zone
- Storage failure on primary
The following options are incorrect because all these scenarios do not affect the primary database.
Automatic failover only occurs if the primary database is the one that is affected.
- Storage failure on secondary DB instance
- In the event of Read Replica failure
- Compute unit failure on secondary DB instance References: https://aws.amazon.com/rds/details/multi- az/ https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.MultiAZ.html Check out this Amazon RDS Cheat Sheet: https://tutorialsdojo.com/amazon-relational-database-service-amazon-rds/


NEW QUESTION # 744
A company has a VPC for its Human Resource department and another VPC located in different AWS regions for its Finance department. The Solutions Architect must redesign the architecture to allow the finance department to access all resources that are in the human resource department, and vice versa. An Intrusion Prevention System (IPS) must also be integrated for active traffic flow inspection and to block any vulnerability exploits.
Which network architecture design in AWS should the Solutions Architect set up to satisfy the above requirement?

  • A. Create a Traffic Policy in Amazon Route 53 to connect the two VPCs. Configure the Route 53 Resolver DNS Firewall to do active traffic flow inspection and block any vulnerability exploits.
  • B. Establish a secure connection between the two VPCs using a NAT Gateway. Manage user sessions via the AWS Systems Manager Session Manager service.
  • C. Launch an AWS Transit Gateway and add VPC attachments to connect all departments. Set up AWS Network Firewall to secure the application traffic travelling between the VPCs.
  • D. Create a Direct Connect Gateway and add VPC attachments to connect all departments. Configure AWS Security Hub to secure the application traffic travelling between the VPCs.

Answer: C

Explanation:
A transit gateway is a network transit hub that you can use to interconnect your virtual private clouds (VPCs) and on-premises networks. As your cloud infrastructure expands globally, inter-Region peering connects transit gateways together using the AWS Global Infrastructure. Your data is automatically encrypted and never travels over the public internet.

A transit gateway attachment is both a source and a destination of packets. You can attach the following resources to your transit gateway:
- One or more VPCs.
- One or more VPN connections
- One or more AWS Direct Connect gateways
- One or more Transit Gateway Connect attachments
- One or more transit gateway peering connections
AWS Transit Gateway deploys an elastic network interface within VPC subnets, which is then used by the transit gateway to route traffic to and from the chosen subnets. You must have at least one subnet for each Availability Zone, which then enables traffic to reach resources in every subnet of that zone.
During attachment creation, resources within a particular Availability Zone can reach a transit gateway only if a subnet is enabled within the same zone. If a subnet route table includes a route to the transit gateway, traffic is only forwarded to the transit gateway if the transit gateway has an attachment in the subnet of the same Availability Zone.
Intra-region peering connections are supported. You can have different transit gateways in different Regions.
AWS Network Firewall is a managed service that makes it easy to deploy essential network protections for all of your Amazon Virtual Private Clouds (VPCs). The service can be setup with just a few clicks and scales automatically with your network traffic, so you don't have to worry about deploying and managing any infrastructure. AWS Network Firewall's flexible rules engine lets you define firewall rules that give you fine-grained control over network traffic, such as blocking outbound Server Message Block (SMB) requests to prevent the spread of malicious activity.



AWS Network Firewall includes features that provide protections from common network threats. AWS Network Firewall's stateful firewall can incorporate context from traffic flows, like tracking connections and protocol identification, to enforce policies such as preventing your VPCs from accessing domains using an unauthorized protocol. AWS Network Firewall's intrusion prevention system (IPS) provides active traffic flow inspection so you can identify and block vulnerability exploits using signature-based detection. AWS Network Firewall also offers web filtering that can stop traffic to known bad URLs and monitor fully qualified domain names.
Hence, the correct answer is: Launch a Transit Gateway and add VPC attachments to connect all departments. Set up AWS Network Firewall to secure the application traffic travelling between the VPCs.
The option that says: Create a Traffic Policy in Amazon Route 53 to connect the two VPCs. Configure the Route 53 Resolver DNS Firewall to do active traffic flow inspection and block any vulnerability exploits is incorrect because the Traffic Policy feature is commonly used in tandem with the geoproximity routing policy for creating and maintaining records in large and complex configurations. Moreover, the Route 53 Resolver DNS Firewall can only filter and regulate outbound DNS traffic for your virtual private cloud (VPC). It can neither do active traffic flow inspection nor block any vulnerability exploits.
The option that says: Establish a secure connection between the two VPCs using a NAT Gateway.
Manage user sessions via the AWS Systems Manager Session Manager service is incorrect because a NAT Gateway is simply a Network Address Translation (NAT) service and can't be used to connect two VPCs in different AWS regions. This service allows your instances in a private subnet to connect to services outside your VPC but external services cannot initiate a connection with those instances.
Furthermore, the AWS Systems Manager Session Manager service is meant for managing EC2 instances via remote SSH or PowerShell access. This is not used for managing user sessions.
The option that says: Create a Direct Connect Gateway and add VPC attachments to connect all departments. Configure AWS Security Hub to secure the application traffic travelling between the VPCs is incorrect. An AWS Direct Connect gateway is meant to be used in conjuction with an AWS Direct Connect connection to your on-premises network to connect with a Transit Gateway or a Virtual Private Gateway. You still need a Transit Gateway to connect the two VPCs that are in different AWS Regions.
The AWS Security Hub is simply a cloud security posture management service that automates best practice checks, aggregates alerts, and supports automated remediation. It's important to note that it doesn't secure application traffic just by itself.
References:
https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-peering.html
https://aws.amazon.com/transit-gateway
https://aws.amazon.com/network-firewall
Check out these Amazon VPC and VPC Peering Cheat Sheets: https://tutorialsdojo.com/amazon-vpc/
https://tutorialsdojo.com/vpc-peering/


NEW QUESTION # 745
A Solutions Architect is working for a weather station in Asia with a weather monitoring system that needs to be migrated to AWS. Since the monitoring system requires a low network latency and high network throughput, the Architect decided to launch the EC2 instances to a new cluster placement group. The system was working fine for a couple of weeks, however, when they try to add new instances to the placement group that already has running EC2 instances, they receive an 'insufficient capacity error'.
How will the Architect fix this issue?

  • A. Verify all running instances are of the same size and type and then try the launch again.
  • B. Create another Placement Group and launch the new instances in the new group.
  • C. Stop and restart the instances in the Placement Group and then try the launch again.
  • D. Submit a capacity increase request to AWS as you are initially limited to only 12 instances per Placement Group.

Answer: C

Explanation:
A cluster placement group is a logical grouping of instances within a single Availability Zone. A cluster placement group can span peered VPCs in the same Region. Instances in the same cluster placement group enjoy a higher per-flow throughput limit for TCP/IP traffic and are placed in the same high- bisection bandwidth segment of the network.

It is recommended that you launch the number of instances that you need in the placement group in a single launch request and that you use the same instance type for all instances in the placement group.
If you try to add more instances to the placement group later, or if you try to launch more than one instance type in the placement group, you increase your chances of getting an insufficient capacity error.
If you stop an instance in a placement group and then start it again, it still runs in the placement group.
However, the start fails if there isn't enough capacity for the instance.
If you receive a capacity error when launching an instance in a placement group that already has running instances, stop and start all of the instances in the placement group, and try the launch again. Restarting the instances may migrate them to hardware that has capacity for all the requested instances.
Stop and restart the instances in the Placement group and then try the launch again can resolve this issue. If the instances are stopped and restarted, AWS may move the instances to a hardware that has the capacity for all the requested instances.
Hence, the correct answer is: Stop and restart the instances in the Placement Group and then try the launch again.
The option that says: Create another Placement Group and launch the new instances in the new group is incorrect because to benefit from the enhanced networking, all the instances should be in the same Placement Group. Launching the new ones in a new Placement Group will not work in this case.
The option that says: Verify all running instances are of the same size and type and then try the launch again is incorrect because the capacity error is not related to the instance size.
The option that says: Submit a capacity increase request to AWS as you are initially limited to only 12 instances per Placement Group is incorrect because there is no such limit on the number of instances in a Placement Group.
References:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html#placement-groups-clu ster
http://docs.amazonaws.cn/en_us/AWSEC2/latest/UserGuide/troubleshooting-launch.html#troubleshootin g-launch-capacity Check out this Amazon EC2 Cheat Sheet:
https://tutorialsdojo.com/amazon-elastic-compute-cloud-amazon-ec2/


NEW QUESTION # 746
A company is planning to use an Amazon DynamoDB table for data storage. The company is concerned about cost optimization. The table will not be used on most mornings. In the evenings, the read and write traffic will often be unpredictable. When traffic spikes occur, they will happen very quickly.
What should a solutions architect recommend?

  • A. Create a DynamoDB table with provisioned capacity and auto scaling.
  • B. Create a DynamoDB table with a global secondary index.
  • C. Create a DynamoDB table in provisioned capacity mode, and configure it as a global table.
  • D. Create a DynamoDB table in on-demand capacity mode.

Answer: D


NEW QUESTION # 747
A company has an on-premises data center that is running out of storage capacity. The company wants to migrate its storage infrastructure to AWS while minimizing bandwidth costs. The solution must allow for immediate retrieval of data at no additional cost.
How can these requirements be met?

  • A. Deploy AWS Direct Connect to connect with the on-premises data center. Configure AWS Storage Gateway to store data locally. Use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3.
  • B. Deploy AWS Storage Gateway using cached volumes. Use Storage Gateway to store data in Amazon S3 while retaining copies of frequently accessed data subsets locally.
  • C. Deploy AWS Storage Gateway using stored volumes to store data locally. Use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3.
  • D. Deploy Amazon S3 Glacier Vault and enable expedited retrieval. Enable provisioned retrieval capacity for the workload.

Answer: B

Explanation:
The solution that will meet the requirements is to deploy AWS Storage Gateway using cached volumes and use Storage Gateway to store data in Amazon S3 while retaining copies of frequently accessed data subsets locally. This solution will allow the company to migrate its storage infrastructure to AWS while minimizing bandwidth costs, as it will only transfer data that is not cached locally. The solution will also allow for immediate retrieval of data at no additional cost, as the cached volumes will provide low-latency access to the most recently used data. The data stored in Amazon S3 will be durable, scalable, and secure.
The other solutions are not as effective as the first one because they either do not meet the requirements or introduce additional costs or complexity. Deploying Amazon S3 Glacier Vault and enabling expedited retrieval will not meet the requirements, as it will incur additional costs for both storage and retrieval. Amazon S3 Glacier is a low-cost storage service for data archiving and backup, but it has longer retrieval times than Amazon S3. Expedited retrieval is a feature that allows faster access to data, but it charges a higher fee per GB retrieved. Provisioned retrieval capacity is a feature that reserves dedicated capacity for expedited retrievals, but it also charges a monthly fee per provisioned capacity unit. Deploying AWS Storage Gateway using stored volumes to store data locally and use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3 will not meet the requirements, as it will not migrate the storage infrastructure to AWS, but only create backups. Stored volumes are volumes that store the primary data locally and back up snapshots to Amazon S3. This solution will not reduce the storage capacity needed on-premises, nor will it leverage the benefits of cloud storage. Deploying AWS Direct Connect to connect with the on-premises data center and configuring AWS Storage Gateway to store data locally and use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3 will not meet the requirements, as it will also not migrate the storage infrastructure to AWS, but only create backups. AWS Direct Connect is a service that establishes a dedicated network connection between the on-premises data center and AWS, which can reduce network costs and increase bandwidth. However, this solution will also not reduce the storage capacity needed on-premises, nor will it leverage the benefits of cloud storage.
References:
AWS Storage Gateway
Cached volumes - AWS Storage Gateway
Amazon S3 Glacier
Retrieving archives from Amazon S3 Glacier vaults - Amazon Simple Storage Service Stored volumes - AWS Storage Gateway AWS Direct Connect


NEW QUESTION # 748
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