Which of the following is a best practice for adding an additional layer of security when logging into the AWS Management Console? a. Root access permissions b. Multi-factor authentication (MFA) c. Secondary password d. Secondary user name b. Multi-factor authentication (MFA) Which of the following tasks is the customer's responsibility when creating Amazon VPC security groups? a. Adding rules regarding inbound traffic to the security group b. Choosing the level of physical security for the network c. Ensuring that the security groups are linked to Amazon EC2 d. Selecting an appropriate load balancing strategy for the network routers a. Adding rules regarding inbound traffic to the security group Which of the following examples best demonstrates the agility that cloud computing offers? a. Protect your data by centralizing your applications in one Availability Zone b. Quickly deploy multi-factor authentication (MFA) to multiple data centers c. Spin up servers in minutes, and shut down servers when you don't need them. d. Increase network throughout with AWS Direct Connect (DX) nodes. c. Spin up servers in minutes, and shut down servers when you don't need them. Which service provides persistent block storage volumes for use with Amazon EC2 instances? a. Amazon S3 b. Amazon EFS c. Amazon DynamoDB d. Amazon EBS d. Amazon EBS What is Amazon Route 53 a. A highly available and scalable Domain Name System (DNS) web service b. A monitoring and management service that collects and tracks metrics c. A fast and flexible nonrelational database service for all applications that need consistent, single-digit millisecond latency at any scale. d. A cloud service solution that establishes private connectivity between AWS and your data center, office, or colocation environment.