SAP-C01 (Page 9)

You are implementing AWS Direct Connect.You intend to use AWS public service end points such as Amazon S3, across the AWS Direct Connect link.You want other Internet traffic to use your existing link to an Internet Service Provider.What is the correct way to configure AWS Direct connect for access to services such as Amazon S3?Read More →

Your application is using an ELB in front of an Auto Scaling group of web/application servers deployed across two AZs and a Multi-AZ RDS Instance for data persistence.The database CPU is often above 80% usage and 90% of I/O operations on the database are reads.To improve performance you recently added a single-nodeMemcached ElastiCache Cluster to cache frequent DB query results.In the next weeks the overall workload is expected to grow by 30%.Do you need to change anything in the architecture to maintain the high availability or the application with the anticipated additional load? Why?Read More →

You are designing the network infrastructure for an application server in Amazon VPC.Users will access all application instances from the Internet, as well as from an on-premises network.The on-premises network is connected to your VPC over an AWS Direct Connect link.How would you design routing to meet the above requirements?Read More →

Auto Scaling requests are signed with a _________ signature calculated from the request and the user’s private key.Read More →

The following policy can be attached to an IAM group.It lets an IAM user in that group access a “home directory” in AWS S3 that matches their user name using the console.{“Version”: “2012-10-17″,”Statement”: [{“Action”: [“s3:*”],”Effect”: “Allow”,”Resource”: [“arn:aws:s3:::bucket-name”],”Condition”:{“StringLike”:{“s3:prefix”:[“home/${aws:username}/*”]}}},{“Action”:[“s3:*”],”Effect”:”Allow”,”Resource”: [“arn:aws:s3:::bucket-name/home/${aws:username}/*”]}]}Read More →

What does elasticity mean to AWS?Read More →

How is AWS readily distinguished from other vendors in the traditional IT computing landscape?Read More →

You have launched an EC2 instance with four (4) 500 GB EBS Provisioned IOPS volumes attached.The EC2 instance is EBS-Optimized and supports 500 Mbps throughput between EC2 and EBS.The four EBS volumes are configured as a single RAID 0 device, and each Provisioned IOPS volume is provisioned with 4,000IOPS (4,000 16KB reads or writes), for a total of 16,000 random IOPS on the instance.The EC2 instance initially delivers the expected 16,000 IOPS random read and write performance.Sometime later, in order to increase the total random I/O performance of the instance, you add an additional two 500 GB EBS ProvisionedIOPS volumes to the RAID.Each volume is provisioned to 4,000 IOPs like the original four, for a total of 24,000 IOPS on the EC2 instance.Monitoring shows that the EC2 instance CPU utilization increased from 50% to 70%, but the total random IOPS measured at the instance level does not increase at all.What is the problem and a valid solution?Read More →

Your company is storing millions of sensitive transactions across thousands of 100-GB files that must be encrypted in transit and at rest.Analysts concurrently depend on subsets of files, which can consume up to 5 TB of space, to generate simulations that can be used to steer business decisions.You are required to design an AWS solution that can cost effectively accommodate the long-term storage and in-flight subsets of data.Which approach can satisfy these objectives?Read More →

A company currently uses a single 1 Gbps AWS Direct Connect connection to establish connectivity between an AWS Region and its data center.The company has five Amazon VPCs, all of which are connected to the data center using the same Direct Connect connection.The Network team is worried about the single point of failure and is interested in improving the redundancy of the connections to AWS while keeping costs to a minimum.Which solution would improve the redundancy of the connection to AWS while meeting the cost requirements?Read More →