1. A data science team requires storage for nightly log processing. The size and number of logs is unknown and will persist for 24 hours only.What is the MOST cost-effective solution?

A) Amazon S3 Standard
B) Amazon S3 Intelligent-Tiering
C) Amazon S3 Glacier
D) Amazon S3 One Zone-Infrequent Access (S3 One Zone-IA)



2. A solution architect is designing a two-tier web application. The application consists of a public-facing web tier hosted on Amazon EC2 in public subnets. The database tier consists of Microsoft SQL Server running on Amazon EC2 in a private subnet Security is a hight priority for the company.How should security group be configured in this situation? (Select two)(Select 2answers)

A) Configure the security group for the database tier to allow outbound on port 443 and 1433 to the security group for the web tier.
B) Configure the security group for the database tier to allow inbound on port 443 and 1433 from the security group for the web tier.
C) Configure the security group for the web tier to allow outbound traffic on port 443 from 0.0.0.0/0
D) Configure the security group for the web tier to allow inbound traffic on port 443 from 0.0.0.0/0
E) Configure the security group for the database tier to allow inbound on port 1433 from the security group for the web tier.


3. A solutions architect has created a new AWS account and must secure AWS account root user access. Which combination of actions will accomplish this? (select two)(Select 2answers)

A) Add the root user to a group containing administrative permissions.
B) Ensure the root user uses a strong password.
C) Enable multi-factor authentication to the root user.
D) Apply the required permissions to the root user with an inline policy document.
E) Store root user access keys in an encrypted Amazon S3 bucket


4. A company has a two-tier application architecture that runs in public and private subnets. Amazon EC2 instances running the web application are in the public subnet and a database runs on the private subnet. The web application instances and the database are running in a single Availability Zone (AZ).Which combination of steps should a solutions architect take to provide high availability for this architecture? (Choose two.)(Select 2answers)

A) Create new public and private subnets in the same VPC, each in a new AZ. Migrate the database to an Amazon RDS multi-AZ deployment.
B) Create an Amazon EC2 Auto Scaling group and Application Load Balancer spanning multiple AZs.
C) Create new public and private subnets in the same AZ for high availability.
D) Create new public and private subnets in a new AZ. Create a database using Amazon EC2 in one AZ.
E) Add the existing web application instances to an Auto Scaling group behind an Application Load Balancer.


5. A solutions architect at an ecommerce company wants to backup application log data to Amazon S3. The solutions architect is unsure how frequently the logs will be accessed or which logs will be accessed the most the company wants to keep costs as low as possible by using the appropriate S3 storage class.Which S3 storage class should be implemented to meet these requirements?

A) S3 Standard-Infrequent Access (S3 Standard-IA)
B) S3 One Zone-Infrequent Access (S3 One Zone-IA)
C) S3 Glacier
D) S3 Intelligent-Tiering