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Question 88

A company plans to move most of its IT infrastructure to IAM. The company wants to leverage its existing on-premises Active Directory as an identity provider for IAM.

Which steps should be taken to authenticate to IAM services using the company's on-premises Active Directory? (Choose three).

Options:

Create IAM roles with permissions corresponding to each Active Directory group.

Create IAM groups with permissions corresponding to each Active Directory group.

Create a SAML provider with IAM.

Create a SAML provider with Amazon Cloud Directory.

Configure IAM as a trusted relying party for the Active Directory

Configure IAM as a trusted relying party for Amazon Cloud Directory.

Question 89

A security engineer recently rotated the host keys for an Amazon EC2 instance. The security engineer is trying to access the EC2 instance by using the EC2 Instance. Connect feature. However, the security engineer receives an error (or failed host key validation. Before the rotation of the host keys EC2 Instance Connect worked correctly with this EC2 instance.

What should the security engineer do to resolve this error?

Options:

Import the key material into AWS Key Management Service (AWS KMS).

Manually upload the new host key to the AWS trusted host keys database.

Ensure that the AmazonSSMManagedInstanceCore policy is attached to the EC2 instance profile.

Create a new SSH key pair for the EC2 instance.

Answer:

Explanation:

To set up a CloudFront distribution for an S3 bucket that hosts a static website, and to allow only specified IP addresses to access the website, the following steps are required:

Create a CloudFront origin access identity (OAI), which is a special CloudFront user that you can associate with your distribution. An OAI allows you to restrict access to your S3 content by using signed URLs or signed cookies. For more information, see Using an origin access identity to restrict access to your Amazon S3 content.
Create the S3 bucket policy so that only the OAI has access. This will prevent users from accessing the website directly by using S3 URLs, as they will receive an Access Denied error. To do this, use the AWS Policy Generator to create a bucket policy that grants s3:GetObject permission to the OAI, and attach it to the S3 bucket. For more information, see Restricting access to Amazon S3 content by using an origin access identity.
Create an AWS WAF web ACL and add an IP set rule. AWS WAF is a web application firewall service that lets you control access to your web applications. An IP set is a condition that specifies a list of IP addresses or IP address ranges that requests originate from. You can use an IP set rule to allow or block requests based on the IP addresses of the requesters. For more information, see Working with IP match conditions.
Associate the web ACL with the CloudFront distribution. This will ensure that the web ACL filters all requests for your website before they reach your origin. You can do this by using the AWS WAF console, API, or CLI. For more information, see Associating or disassociating a web ACL with a CloudFront distribution.

This solution will meet the requirements of allowing only specified IP addresses to access the website and preventing direct access by using S3 URLs.

The other options are incorrect because they either do not create a CloudFront distribution for the S3 bucket (A), do not use an OAI to restrict access to the S3 bucket ©, or do not use AWS WAF to block traffic from outside the specified IP addresses (D).

Verified References:

https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-restricting-access-to-s3.html
https://docs.aws.amazon.com/waf/latest/developerguide/web-acl-ip-conditions.html

Question 90

A company is operating a website using Amazon CloudFornt. CloudFront servers some content from Amazon S3 and other from web servers running EC2 instances behind an Application. Load Balancer (ALB). Amazon DynamoDB is used as the data store. The company already uses IAM Certificate Manager (ACM) to store a public TLS certificate that can optionally secure connections between the website users and CloudFront. The company has a new requirement to enforce end-to-end encryption in transit.

Which combination of steps should the company take to meet this requirement? (Select THREE.)

Options:

Update the CloudFront distribution. configuring it to optionally use HTTPS when connecting to origins on Amazon S3

Update the web application configuration on the web servers to use HTTPS instead of HTTP when connecting to DynamoDB

Update the CloudFront distribution to redirect HTTP corrections to HTTPS

Configure the web servers on the EC2 instances to listen using HTTPS using the public ACM TLS certificate Update the ALB to connect to the target group using HTTPS

Update the ALB listen to listen using HTTPS using the public ACM TLS certificate. Update the CloudFront distribution to connect to the HTTPS listener.

Create a TLS certificate Configure the web servers on the EC2 instances to use HTTPS only with that certificate. Update the ALB to connect to the target group using HTTPS.

Question 91

A company uses a third-party application to store encrypted data in Amazon S3. The company uses another third-party application trial decrypts the data from Amazon S3 to ensure separation of duties Between the applications A Security Engineer warns to separate the permissions using IAM roles attached to Amazon EC2 instances. The company prefers to use native IAM services.

Which encryption method will meet these requirements?