Amazon Glacier is designed for: (Choose 2 answers)
A. active database storage.
B. infrequently accessed data.
C.
Target: your Internet gateway
B. Destination: 192.168.1.257/0 --> Target: your Internet gateway
C. Destination: 0.0.0.0/33 --> Target: your virtual private gateway
D. Destination: 0.0.0.0/0 --> Target: 0.0.0.0/24
E. Destination: 10.0.0.0/32 --> Target: your virtual private gateway
A customer's nightly EMR job processes a single 2-TB data file stored on Amazon Simple Storage Service (S3). The EMR job runs on two On-Demand core nodes and three On-Demand task nodes. Which of the following may help reduce the EMR job completion time?
Choose 2 answers
A. Use three Spot Instances rather than three On-Demand instances for the task nodes.
B. Change the input split size in the MapReduce job configuration.
C. Use a bootstrap action to present the S3 bucket as a local filesystem.
D. Launch the core nodes and task nodes within an Amazon Virtual Cloud.
E. Adjust the number of simultaneous mapper tasks.
F. Enable termination protection for the job flow.
You have an VPC with a public subnet. Three EC2 instances currently running inside the subnet can successfully communicate with other hosts on the internet. You launch a fourth instance in the same subnet, using the same AMI and security group configuration you used for the others, but find that this instance cannot be accessed from the Internet. What should you do to enable Internet access?
A. Deploy a NAT instance into the public subnet.
B. Modify the routing table for the public subnet.
C. Assign an elastic IP address to the fourth instance.
D. Configure a publicly routable IP address in the host OS of the fourth instance.
Which of the following requires a custom CloudWatch metric to monitor?
A. Memory use (Memory Utilization of an EC2 instance)
B. CPU use (CPU Utilization of an EC2 instance)
C. Disk read operations (Disk usage activity of an EC2 instance)
D. Network in (Data transfer You are tasked with setting up a Linux bastion host for access to Amazon EC2of an EC2 instance)
E. Estimated charges
Which of the following is a durable key-value store?
A. Amazon Simple Storage Service
B. Amazon Simple Workflow Service
C. Amazon Simple Queue Service
D. Amazon Simple Notification Service
After creating a new AWS account, you use the API to request 40 on-demand EC2 instances in a single AZ. After 20 successful requests, subsequent requests failed. What could be a reason for this issue, and how would you resolve it?
A. You encountered a soft limit of 20 instances per region. Submit the limit increase form and retry the failed requests once approved.
B. AWS allows you to provision no more than 20 instances per Availability Zone. Select a different Availability Zone and retry the failed request.
C. You need to use Amazon Virtual Private Cloud (VPC) in order to provision more than 20 instances in a single Availability Zone. Simply terminate the resources already provisioned and re-launch them all in a VPC.
D. You encountered an API throttling situation and should try the failed requests using an exponential decay retry algorithm.
Amazon Glacier is designed for:
Choose 2 answers
A. Frequently accessed data
B. Active database storage
C. Data archives
D. Infrequently accessed data
E. Cached session data
You have an application running in us-west-2 that requires six EC2 instances running at all times. With three AZs available in that region (us-west-2a, us-west-2b, and us-west-2c), which of the following deployments provides 100 percent fault tolerance if any single AZ in us-west-2 becomes unavailable?
Choose 2 answers
A. Us-west-2a with two EC2 instances, us-west-2b with two EC2 instances, and us-west-2c with two EC2 instances
B. Us-west-2a with three EC2 instances, us-west-2b with three EC2 instances, and us-west-2c with no EC2 instances
C. Us-west-2a with four EC2 instances, us-west-2b with two EC2 instances, and us-west-2c with two EC2 instances
D. Us-west-2a with six EC2 instances, us-west-2b with six EC2 instances, and us-west-2c with no EC2 instances
E. Us-west-2a with three EC2 instances, us-west-2b with three EC2 instances, and us-west-2c with three EC2 instances
What action is required to establish a VPC VPN connection between an on-premises data center and an Amazon VPC virtual private gateway?
A. Modify the main route table to allow traffic to a network address translation instance.
B. Use a dedicated network address translation instance in the public subnet.
C. Assign a static Internet-routable IP address to an Amazon VPC customer gateway.
D. Establish a dedicated networking connection using AWS Direct Connect.
How can software determine the public and private IP addresses of the EC2 instance that it is running on?
A. Query the local instance metadata.
B. Query the local instance userdata.
C. Query the appropriate Amazon CloudWatch metric.
D. Use an ipconfig or ifconfig command.
A startup company hired you to help them build a mobile application, that will ultimately store billions of images and videos in S3. The company is lean on funding, and wants to minimize operational costs, however, they have an aggressive marketing plan, and expect to double their current installation base every six months. Due to the nature of their business, they are expecting sudden and large increases in traffic to and from S3, and need to ensure that it can handle the performance needs of their application. What other information must you gather from this customer in order to determine whether S3 is the right option?
A. You must know how many customers the company has today, because this is critical in understanding what their customer base will be in two years.
B. You must find out the total number of requests per second at peak usage.
C. You must know the size of the individual objects being written to S3, in order to properly design the key namespace.
D. In order to build the key namespace correctly, you must understand the total amount of storage needs for each S3 bucket.
You have an EC2 security group with several running EC2 instances. You change the security group rules to allow inbound traffic on a new port and protocol, and launch several new instances in the same security group. The new rules apply:
A. Immediately to all instances in the security group.
B. Immediately to the new instances only.
C. Immediately to the new instances, but old instances must be stopped and restarted before the new rules apply.
D. To all instances, but it may take several minutes for old instances to see the changes.
A VPC public subnet is one that:
A. Has at least one route in its associated routing table that uses an Internet Gateway (IGW).
B. Includes a route in its associated routing table via a Network Address Translation (NAT) instance.
C. Has a Network Access Control List (NACL) permitting outbound traffic to 0.0.0.0/0.
D. Has the Public Subnet option selected in its configuration.
In reviewing the Auto Scaling events for your application you notice that your application is scaling up and down multiple times in the same hour. What design choice could you make to optimize for cost while preserving elasticity?
Choose 2 answers
A. Modify the Auto Scaling policy to use scheduled scaling actions
B. Modify the Auto Scaling group termination policy to terminate the oldest instance first.
C. Modify the Auto Scaling group cool-down timers.
D. Modify the Amazon CloudWatch alarm period that triggers your Auto Scaling scale down policy.
E. Modify the Auto Scaling group termination policy to terminate the newest instance first.
What combination of the following options will protect S3 objects from both accidental deletion and accidental overwriting?
A. Enable S3 versioning on the bucket.
B. Access S3 data using only signed URLs.
C. Disable S3 delete using an IAM bucket policy.
D. Enable S3 Reduced Redundancy Storage.
E. Enable multi-factor authentication (MFA) protected access.
What does Amazon S3 stand for?
A. Simple Storage Solution.
B. Storage Storage Storage (triple redundancy Storage).
C. Storage Server Solution.
D. Simple Storage Service.
You must assign each server to at least _____ security group
A. 3
B. 2
C. 4
D. 1
Before I delete an EBS volume, what can I do if I want to recreate the volume later?
A. Create a copy of the EBS volume (not a snapshot)
B. Store a snapshot of the volume
C. Download the content to an EC2 instance
D. Back up the data in to a physical disk
Select the most correct answer: The device name /dev/sda1 (within Amazon EC2 ) is _____
A. Possible for EBS volumes
B. Reserved for the root device
C. Recommended for EBS volumes
D. Recommended for instance store volumes-->
data archives.
D. frequently accessed data.
E. cached session data.
Your web application front end consists of multiple EC2 instances behind an Elastic Load Balancer. You
configured ELB to perform health checks on these EC2 instances. If an instance fails to pass health
checks, which statement will be true?
A. The instance is replaced automatically by the ELB.
B. The instance gets terminated automatically by the ELB.
C.
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