In AWS IAM, which of the following predefined policy condition keys checks how long ago (in seconds) the MFA-validated security credentials making the request were issued using multi-factor authentication
(MFA)?
Correct Answer:A
aws:MuItiFactorAuthAge is one of the predefined keys provided by AWS that can be included within a Condition element of an IAM policy. The key allows to check how long ago (in seconds) the
MFA-validated security credentials making the request were issued using Multi-Factor Authentication (MFA).
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccessPoIicyLanguage_EIementDescriptions.htmI
What is the default maximum number of VPCs allowed per region?
Correct Answer:A
The maximum number of VPCs allowed per region is 5.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Appendix_Limits.html
A 3-tier e-commerce web application is current deployed on-premises and will be migrated to AWS for greater scalability and elasticity The web server currently shares read-only data using a network distributed file system The app server tier uses a clustering mechanism for discovery and shared session state that depends on IP multicast The database tier uses shared-storage clustering to provide database fall over capability, and uses several read slaves for scaling Data on all servers and the distributed file system directory is backed up weekly to off-site tapes
Which AWS storage and database architecture meets the requirements of the application?
Correct Answer:C
Your company is getting ready to do a major public announcement of a social media site on AWS. The website is running on EC2 instances deployed across multiple Availability Zones with a MuIti-AZ RDS MySQL Extra Large DB Instance. The site performs a high number of small reads and writes per second and relies on an eventual consistency model. After comprehensive tests you discover that there is read contention on RDS MySQL. Which are the best approaches to meet these requirements? (Choose 2 answers)
Correct Answer:AC
Which of the following components of AWS Data Pipeline specifies the business logic of your data management?
Correct Answer:B
A pipeline definition specifies the business logic of your data management.
Reference: http://docs.aws.amazon.com/datapipeline/latest/DeveIoperGuide/what-is-datapipeline.htmI