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Amazon AWS-Solutions-Architect-Professional Valid Test Review: AWS Certified Solutions Architect - Professional - PassTestking Help you Pass

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Amazon AWS-Solutions-Architect-Professional (AWS Certified Solutions Architect - Professional) Exam is a certification offered by Amazon Web Services (AWS) for professionals who design and deploy scalable, fault-tolerant systems on AWS. AWS Certified Solutions Architect - Professional certification is targeted at individuals who have experience with AWS and possess advanced technical skills, such as designing and deploying applications on AWS, selecting the appropriate AWS services for a given scenario, and troubleshooting AWS deployments.

The AWS Certified Solutions Architect - Professional certification exam consists of multiple-choice and multiple-response questions, as well as scenario-based questions that require the candidate to apply their knowledge to real-world scenarios. AWS-Solutions-Architect-Professional Exam is timed and lasts for 180 minutes. Candidates must achieve a passing score of 750 out of 1000 to earn the certification.

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Amazon AWS Certified Solutions Architect - Professional Sample Questions (Q315-Q320):

NEW QUESTION # 315
A company is hosting a critical application on a single Amazon EC2 instance. The application uses an Amazon ElastiCache for Redis single-node cluster for an in-memory data store. The application uses an Amazon RDS for MariaDB DB instance for a relational database. For the application to function, each piece of the infrastructure must be healthy and must be in an active state.
A solutions architect needs to improve the application's architecture so that the infrastructure can automatically recover from failure with the least possible downtime.
Which combination of steps will meet these requirements? (Select THREE.)

A. Create a replication group for the ElastiCache for Redis cluster. Configure the cluster to use an Auto Scaling group that has a minimum capacity of two instances.
B. Use an Elastic Load Balancer to distribute traffic across multiple EC2 instances Ensure that the EC2 instances are configured in unlimited mode.
C. Modify the DB instance to create a Multi-AZ deployment that extends across two Availability Zones.
D. Create a replication group for the ElastiCache for Redis cluster. Enable Multi-AZ on the cluster.
E. Modify the DB instance to create a read replica in the same Availability Zone. Promote the read replica to be the primary DB instance in failure scenarios.
F. Use an Elastic Load Balancer to distribute traffic across multiple EC2 instances. Ensure that the EC2 instances are part of an Auto Scaling group that has a minimum capacity of two instances.

Answer: A,C,F

Explanation:
Explanation
A) Using an Elastic Load Balancer (ELB) to distribute traffic across multiple EC2 instances and ensuring that the EC2 instances are part of an Auto Scaling group with a minimum capacity of two instances will improve the availability and scalability of the application. The ELB will automatically route traffic to healthy instances, and the Auto Scaling group will automatically scale the number of instances based on demand. In the event of a failure, the Auto Scaling group will automatically replace the failed instance, minimizing downtime.
D) As i mentioned in the previous answer, A Multi-AZ deployment for Amazon RDS for MariaDB DB instances provides enhanced availability and failover support for DB instances. In a Multi-AZ deployment, Amazon RDS automatically provisions and maintains a synchronous "standby" replica in a different availability zone (AZ) than the primary DB instance. In the event of planned or unplanned outages, Amazon RDS performs an automatic failover to the standby, minimizing downtime.
E) Creating a replication group for the ElastiCache for Redis cluster and configuring the cluster to use an Auto Scaling group that has a minimum capacity of two instances will improve the availability and scalability of the ElastiCache service. The replication group will provide failover support for the Redis cluster and the Auto Scaling group will automatically increase capacity in the event of a failure, minimizing downtime.
Reference:
https://aws.amazon.com/elasticloadbalancing/
https://aws.amazon.com/autoscaling/
https://aws.amazon.com/rds/multi-az/
https://aws.amazon.com/elasticache/redis/
https://aws.amazon.com/elasticache/features/redis-features/

NEW QUESTION # 316
With respect to AWS Lambda permissions model, at the time you create a Lambda function, you specify an IAM role that AWS Lambda can assume to execute your Lambda function on your behalf. This role is also referred to as the________role.

A. delegation
B. configuration
C. execution
D. dependency

Answer: C

Explanation:
Explanation
Regardless of how your Lambda function is invoked, AWS Lambda always executes the function. At the time you create a Lambda function, you specify an IAM role that AWS Lambda can assume to execute your Lambda function on your behalf. This role is also referred to as the execution role.
http://docs.aws.amazon.com/lambda/latest/dg/lambda-dg.pdf

NEW QUESTION # 317
A company is adding a new approved external vendor that only supports IPv6 connectivity. The company's backend systems sit in the private subnet of an Amazon VPC. The company uses a NAT gateway to allow these systems to communicate with external vendors over IPv4. Company policy requires systems that communicate with external vendors use a security group that limits access to only approved external vendors. The virtual private cloud (VPC) uses the default network ACL.
The Systems Operator successfully assigns IPv6 addresses to each of the backend systems. The Systems Operator also updates the outbound security group to include the IPv6 CIDR of the external vendor (destination). The systems within the VPC are able to ping one another successfully over IPv6. However, these systems are unable to communicate with the external vendor.
What changes are required to enable communication with the external vendor?

A. Create an egress-only internet gateway. Add a route for destination ::/0 pointing to the gateway.
B. Enable IPv6 on the internet gateway. Add a route for destination 0.0.0.0/0 pointing to the IGW.
C. Enable IPv6 on the NAT gateway. Add a route for destination ::/0 pointing to the NAT gateway.
D. Create an IPv6 NAT instance. Add a route for destination 0.0.0.0/0 pointing to the NAT instance.

Answer: A

Explanation:
https://docs.aws.amazon.com/vpc/latest/userguide/egress-only-internet-gateway.html

NEW QUESTION # 318
A company is building a hybrid environment that includes servers in an on-premises data center and in the AWS Cloud. The company has deployed Amazon EC2 instances in three VPCs. Each VPC is in a different AWS Region. The company has established an AWS Direct Connect connection to the data center from the Region that is closest to the data center.
The company needs the servers in the on-premises data center to have access to the EC2 instances in all three VPCs. The servers in the on-premises data center also must have access to AWS public services.
Which combination of steps will meet these requirements with the LEAST cost? (Select TWO.)

A. Create a public VIF. Establish an AWS Site-to-Site VPN connection over the public VIF to the VPCs in the other two Regions.
B. Create a Direct Connect gateway in the Region that is closest to the data center. Attach the Direct Connect connection to the Direct Connect gateway. Use the
C. Create a private VIE. Establish an AWS Site-to-Site VPN connection over the private VIF to the VPCs in the other two Regions.
D. Set up additional Direct Connect connections from the on-premises data center to the other two Regions.
E. Direct Connect gateway to connect the VPCs in the other two Regions.
F. Use VPC peering to establish a connection between the VPCs across the Regions. Create a private VIF with the existing Direct Connect connection to connect to the peered VPCs.

Answer: A,B

Explanation:
Explanation
A Direct Connect gateway allows you to connect multiple VPCs across different Regions to a Direct Connect connection1. A public VIF allows you to access AWS public services such as EC21. A Site-to-Site VPN connection over the public VIF provides encryption and redundancy for the traffic between the on-premises data center and the VPCs2. This solution is cheaper than setting up additional Direct Connect connections or using a private VIF with VPC peering.

NEW QUESTION # 319
To get started using AWS Direct Connect, in which of the following steps do you configure Border Gateway Protocol (BGP)?

A. Complete the Cross Connect
B. Configure Redundant Connections with AWS Direct Connect
C. Create a Virtual Interface
D. Download Router Configuration

Answer: C

Explanation:
In AWS Direct Connect, your network must support Border Gateway Protocol (BGP) and BGP MD5 authentication, and you need to provide a private Autonomous System Number (ASN) for that to connect to Amazon Virtual Private Cloud (VPC). To connect to public AWS products such as Amazon EC2 and Amazon S3, you will also need to provide a public ASN that you own (preferred) or a private ASN. You have to configure BGP in the Create a Virtual Interface step.
http://docs.aws.amazon.com/directconnect/latest/UserGuide/getstarted.html#createvirtualinterfac e

NEW QUESTION # 320
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