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Q289. Provisioned IOPS Costs: you are charged for the IOPS and storage whether or not you use them in a given month.
A. FALSE
B. TRUE
Answer: B
Q290. What are the two permission types used by AWS'?
A. Resource-based and Product-based
B. Product-based and Service-based
C. Service-based
D. User-based and Resource-based
Answer: D
Q291. By default, EBS volumes that are created and attached t o an instance at launch are deleted when t hat instance is terminated. You can modify this behavior by changing the value of the flag _ to false when you launch the instance
A. Delete On Termination
B. Remove On Deletion
C. Remove On Termination
D. Terminate On Deletion
Answer: A
Q292. If your DB instance runs out of storage space or file system resources, its status will change to _ and your DB Instance will no longer be available.
A. storage-overflow
B. storage-full
C. storage-exceed
D. storage-overage
Answer: B
Q293. An EC2 instance is connected to an ENI (Elastic Network Interface) in one subnet. What happens when you attach an ENI of a different subnet to this EC2 instance?
A. The EC2 instance follows the rules of the older subnet
B. The EC2 instance follows the rules of both the subnets
C. Not possible, cannot be connected to 2 ENIs
D. The EC2 instance follows the rules of the newer subnet
Answer: B
Explanation:
AWS allows you create an elastic network interface (ENI), attach an ENI to an EC2 instance, detach an ENI from an EC2 instance and attach this ENI to another EC2 instance. The attributes of a network traffic follow the ENI which is attached to an EC2 instance or detached from an EC2 instance. When you move an ENI from one EC2 instance to another, network traffic is redirected to the new EC2 instance. You can create and attach additional ENIs to an EC2 instance.
Attaching multiple network interfaces (ENIs) to an EC2 instance is useful to: Create a management network.
Use network and security appliances in your VPC.
Create dual-homed instances with workloads/roles on distinct subnets Create a low-budget, high-availability solution.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.htm|
Q294. Security groups act like a firewall at the instance level, whereas _ are an additional layer of security that act at the subnet level.
A. DB Security Groups
B. VPC Security Groups
C. network ACLs
Answer: C
Q295. You have created a Route 53 latency record set from your domain to a machine in Northern Virginia and a similar record to a machine in Sydney.
When a user located in U S visits your domain he will be routed to:
A. Northern Virginia
B. Sydney
C. Both, Northern Virginia and Sydney
D. Depends on the Weighted Resource Record Sets
Answer: A
Explanation:
If your application is running on Amazon EC2 instances in two or more Amazon EC2 regions, and if you have more than one Amazon EC2 instance in one or more regions, you can use latency-based routing to route traffic to the correct region and then use weighted resource record sets to route traffic to instances within the region based on weights that you specify.
For example, suppose you have three Amazon EC2 instances with Elastic IP addresses in the US East (Virginia) region and you want to distribute requests across all three IPs evenly for users for whom US East (Virginia) is the appropriate region. Just one Amazon EC2 instance is sufficient in the other regions, although you can apply the same technique to many regions at once.
Reference: http://docs.aws.amazon.com/Route53/Iatest/DeveIoperGuide/Tutorials.html
Q296. In Amazon Elastic Compute Cloud, which ofthe following is used for communication between instances in the same network (EC2-Classic or a VPC)?
A. Private IP addresses
B. Elastic IP addresses
C. Static IP addresses
D. Public IP addresses
Answer: A
Explanation:
A private IP address is an IP address that's not reachable over the Internet. You can use private IP addresses for communication between instances in the same network (EC2-Classic or a VPC). Reference:
http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/using-instance-addressing.htmI