If a single condition within an IAM policy includes multiple values for one key, it will be evaluated using a logical______. A. OR B. NAND C. NOR D. AND
A user is trying to create a PIOPS EBS volume with 3 GB size and 90 IOPS. Will AWS create the volume? A. No, since the PIOPS and EBS size ratio is less than 30 B. Yes, since the ratio between EBS and IOPS is less than 30 C. No, the EBS size is less than 4GB D. Yes, since PIOPS is higher than 100
In Amazon Cognito, your mobile app authenticates with the Identity Provider (IdP) using the provider's SDK. Once the end user is authenticated with the IdP, the OAuth or OpenID Connect token returned from the IdP is passed by your app to Amazon Cognito, which returns a new _____ for the user and a set of temporary, limited-privilege AWS credentials. A. Cognito Key Pair B. Cognito API C. Cognito ID D. Cognito SDK
Correct Answer: C
Explanation:
Explanation: Your mobile app authenticates with the identity provider (IdP) using the provider’s SDK. Once the end user is authenticated with the IdP, the OAuth or OpenID Connect token returned from the IdP is passed by your app to Amazon Cognito, which returns a new Cognito ID for the user and a set of temporary, limited-privilege AWS credentials.
Reference: http://aws.amazon.com/cognito/faqs/
An organization is planning to create a secure scalable application with AWS VPC and ELB. The organization has two instances already running and each instance has an ENI attached to it in addition to a primary network interface. The primary network interface and additional ENI both have an elastic IP attached to it. If those instances are registered with ELB and the organization wants ELB to send data to a particular EIP of the instance, how can they achieve this? A. The organization should ensure that the IP which is required to receive the ELB traffic is attached to a primary network interface. B. It is not possible to attach an instance with two ENIs with ELB as it will give an IP conflict error. C. The organization should ensure that the IP which is required to receive the ELB traffic is attached to an additional ENI. D. It is not possible to send data to a particular IP as ELB will send to any one EIP.
Correct Answer: A
Explanation:
Explanation: Amazon Virtual Private Cloud (Amazon VPC) allows the user to define a virtual networking environment in a private, isolated section of the Amazon Web Services (AWS) cloud. The user has complete control over the virtual networking environment. Within this virtual private cloud, the user can launch AWS resources, such as an ELB, and EC2 instances. There are two ELBs available with VPC: internet facing and internal (private) ELB. For the internet facing ELB it is required that the ELB should be in a public subnet. When the user registers a multi-homed instance (an instance that has an Elastic Network Interface (ENI) attached) with a load balancer, the load balancer will route the traffic to the IP address of the primary network interface (eth0).
Reference: http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGui…
Cognito Sync is an AWS service that you can use to synchronize user profile data across mobile devices without requiring your own backend. When the device is online, you can synchronize data.
If you also set up push sync, what does it allow you to do? A. Notify other devices that a user profile is available across multiple devices B. Synchronize user profile data with less latency C. Notify other devices immediately that an update is available D. Synchronize online data faster
Correct Answer: C
Explanation:
Explanation: Cognito Sync is an AWS service that you can use to synchronize user profile data across mobile devices without requiring your own backend. When the device is online, you can synchronize data, and if you have also set up push sync, notify other devices immediately that an update is available.
Reference: http://docs.aws.amazon.com/cognito/devguide/sync/
An organization is undergoing a security audit. The auditor wants to view the AWS VPC configurations as the organization has hosted all the applications in the AWS VPC. The auditor is from a remote place and wants to have access to AWS to view all the VPC records.
How can the organization meet the expectations of the auditor without compromising on the security of their AWS infrastructure? A. The organization should not accept the request as sharing the credentials means compromising on security. B. Create an IAM role which will have read only access to all EC2 services including VPC and assign that role to the auditor. C. Create an IAM user who will have read only access to the AWS VPC and share those credentials with the auditor. D. The organization should create an IAM user with VPC full access but set a condition that will not allow to modify anything if the request is from any IP other than the organization's data center.
Correct Answer: C
Explanation:
Explanation: A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. The user can create subnets as per the requirement within a VPC. The VPC also works with IAM and the organization can create IAM users who have access to various VPC services. If an auditor wants to have access to the AWS VPC to verify the rules, the organization should be careful before sharing any data which can allow making updates to the AWS infrastructure. In this scenario it is recommended that the organization creates an IAM user who will have read only access to the VPC. Share the above mentioned credentials with the auditor as it cannot harm the organization. The sample policy is given below:
{
“Effect”:”Allow”,
“Action”: [
“ec2:DescribeVpcs”,
“ec2:DescribeSubnets”,
“ec2: DescribeInternetGateways”,
“ec2:DescribeCustomerGateways”,
“ec2:DescribeVpnGateways”,
“ec2:DescribeVpnConnections”,
“ec2:DescribeRouteTables”,
“ec2:DescribeAddresses”,
“ec2:DescribeSecurityGroups”,
“ec2:DescribeNetworkAcls”,
“ec2:DescribeDhcpOptions”,
“ec2:DescribeTags”,
“ec2:DescribeInstances”
],
“Resource”:”*”
}
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_IAM.html
ABC has three separate departments and each department has their own AWS accounts. The HR department has created a file sharing site where all the on roll employees' data is uploaded. The Admin department uploads data about the employee presence in the office to their DB hosted in the VPC. The Finance department needs to access data from the HR department to know the on roll employees to calculate the salary based on the number of days that an employee is present in the office.
How can ABC setup this scenario? A. It is not possible to configure VPC peering since each department has a separate AWS account. B. Setup VPC peering for the VPCs of Admin and Finance. C. Setup VPC peering for the VPCs of Finance and HR as well as between the VPCs of Finance and Admin. D. Setup VPC peering for the VPCs of Admin and HR
Correct Answer: C
Explanation:
Explanation: A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. It enables the user to launch AWS resources into a virtual network that the user has defined. A VPC peering connection allows the user to route traffic between the peer VPCs using private IP addresses as if they are a part of the same network. This is helpful when one VPC from the same or different AWS account wants to connect with resources of the other VPC.
Reference: http://docs.aws.amazon.com/AmazonVPC/latest/PeeringGuide/peering-co…
An organization is purchasing licensed software. The software license can be registered only to a specific MAC Address. The organization is going to host the software in the AWS environment.
How can the organization fulfil the license requirement as the MAC address changes every time an instance is started/ stopped/terminated? A. It is not possible to have a fixed MAC address with AWS. B. The organization should use VPC with the private subnet and configure the MAC address with that subnet. C. The organization should use VPC with an elastic network interface which will have a fixed MAC Address. D. The organization should use VPC since VPC allows to configure the MAC address for each EC2 instance.
Correct Answer: C
Explanation:
Explanation: A Virtual Private Cloud (VPC) is a virtual network dedicated to the user’s AWS account. It enables the user to launch AWS resources into a virtual network that the user has defined. An Elastic Network Interface (ENI) is a virtual network interface that the user can attach to an instance in a VPC. An ENI can include attributes such as: a primary private IP address, one or more secondary private IP addresses, one elastic IP address per private IP address, one public IP address, one or more security groups, a MAC address, a source/destination check flag, and a description. The user can create a network interface, attach it to an instance, detach it from an instance, and attach it to another instance. The attributes of a network interface follow the network interface as it is attached or detached from an instance and reattached to another instance. Thus, the user can maintain a fixed MAC using the network interface.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html
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