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Q191. Amazon RDS automated backups and DB Snapshots are currently supported for only the _ _ storage engine

A. InnoDB

B. MyISAM

Answer: A


Q192. Which of the following features are provided by Amazon EC2?

A. Exadata Database Machine, Optimized Storage Management, Flashback Technology, and Data Warehousing

B. Instances, Amazon Machine Images (AMIs), Key Pairs, Amazon EBS Volumes, Firewall, Elastic IP address, Tags, and Virtual Private Clouds (VPCs)

C. Real Application Clusters (RAC), Elasticache Machine Images (EMIs), Data Warehousing, Flashback Technology, Dynamic IP address

D. Exadata Database Machine, Real Application Clusters (RAC), Data Guard, Table and Index Partitioning, and Data Pump Compression

Answer:

Explanation:

Amazon EC2 provides the following features:

· Virtual computing environments, known as instances;

· Pre-configured templates for your instances, known as Amazon Nlachine Images (AMIs), that package the bits you need for your server (including the operating system and additional software)

· Various configurations of CPU, memory, storage, and networking capacity for your instances, known as instance types

· Secure login information for your instances using key pairs (AWS stores the public key, and you store the private key in a secure place)

· Storage volumes for temporary data that's deleted when you stop or terminate your instance, known as instance store volumes

· Persistent storage volumes for your data using Amazon Elastic Block Store (Amazon EBS), known as Amazon EBS volumes

· MuItipIe physical locations for your resources, such as instances and Amazon EBS volumes, known as regions and Availability Zones

· A firewall that enables you to specify the protocols, ports, and source IP ranges that can reach your instances using security groups

· Static IP addresses for dynamic cloud computing, known as Elastic IP addresses

· Metadata, known as tags, that you can create and assign to your Amazon EC2 resources

· Virtual networks you can create that are logically isolated from the rest of the AWS cloud, and that you can optionally connect to your own network, known as virtual private clouds (VPCs).

Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/concepts.html


Q193. Your startup wants to implement an order fulfillment process for selling a personalized gadget that needs an average of 3-4 days to produce with some orders taking up to 6 months you expect 10 orders per day on your first day. 1000 orders per day after 6 months and 10,000 orders after 12 months.

Orders coming in are checked for consistency men dispatched to your manufacturing plant for production quality control packaging shipment and payment processing If the product does not meet the quality standards at any stage of the process employees may force the process to repeat a step Customers are notified via email about order status and any critical issues with their orders such as payment failure.

Your case architecture includes AWS Elastic Beanstalk for your website with an RDS MySQL instance for customer data and orders.

How can you implement the order fulfillment process while making sure that the emails are delivered reliably?

A. Add a business process management application to your Elastic Beanstalk app servers and re-use the ROS database for tracking order status use one of the Elastic Beanstalk instances to send emails to customers.

B. Use SWF with an Auto Scaling group of actMty workers and a decider instance in another Auto Scaling group with min/max=I Use the decider instance to send emails to customers.

C. Use SWF with an Auto Scaling group of actMty workers and a decider instance in another Auto Scaling group with min/max=I use SES to send emails to customers.

D. Use an SOS queue to manage all process tasks Use an Auto Scaling group of EC2 Instances that poll the tasks and execute them. Use SES to send emails to customers.

Answer: C


Q194. In Amazon EC2, while sharing an Amazon EBS snapshot, can the snapshots with AWS IV|arketpIace product codes be public?

A. Yes, but only for US-based providers.

B. Yes, they can be public.

C. No, they cannot be made public.

D. Yes, they are automatically made public by the system. 

Answer: C

Explanation:

Snapshots with AWS Marketplace product codes can't be made public. Reference:

http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/ebs-modifying-snapshot-permissions.ht ml


Q195. True or False: Automated backups are enabled by default for a new DB Instance.

A. TRUE

B. FALSE

Answer: A


Q196. You have some very sensitive data stored on AWS S3 and want to try every possible alternative to keeping it secure in regards to access control. What are the mechanisms available for access control on AWS S3?

A. (IAM) policies, Access Control Lists (ACLs), bucket policies, and query string authentication.

B. (IAM) policies, Access Control Lists (ACLs) and bucket policies.

C. Access Control Lists (ACLs), bucket policies, and query string authentication

D. (IAM) policies, Access Control Lists (ACLs), bucket policies, query string authentication and encryption.

Answer:

Explanation:

Amazon S3 supports several mechanisms that give you filexibility to control who can access your data as well as how, when, and where they can access it.

Amazon S3 provides four different access control mechanisms:

AWS Identity and Access Management (IAM) policies, Access Control Lists (ACLs), bucket policies, and query string authentication.

IAM enables organizations to create and manage multiple users under a single AWS account. With IAM policies, you can grant IAM users fine-grained control to your Amazon S3 bucket or objects. You can use ACLs to selectively add (grant) certain permissions on indMdual objects.

Amazon S3 bucket policies can be used to add or deny permissions across some or all of the objects within a single bucket.

With Query string authentication, you have the ability to share Amazon S3 objects through URLs that are valid for a specified period of time.


Q197. You are setting up a very complex financial services grid and so far it has 5 Elastic IP (EIP) addresses.

You go to assign another EIP address, but all accounts are limited to 5 Elastic IP addresses per region by default, so you aren't able to. What is the reason for this?

A. For security reasons.

B. Hardware restrictions.

C. Public (IPV4) internet addresses are a scarce resource.

D. There are only 5 network interfaces per instance. 

Answer: C

Explanation:

Public (IPV4) internet addresses are a scarce resource. There is only a limited amount of public IP space available, and Amazon EC2 is committed to helping use that space efficiently.

By default, all accounts are limited to 5 Elastic IP addresses per region. If you need more than 5 Elastic IP addresses, AWS asks that you apply for your limit to be raised. They will ask you to think through your use case and help them understand your need for additional addresses.

Reference:  http://aws.amazon.com/ec2/faqs/#How_many_instances_can_I_run_in_Amazon_EC2


Q198. A benefits enrollment company is hosting a 3-tier web application running in a VPC on AWS which includes a NAT (Network Address Translation) instance in the public Web tier. There is enough provisioned capacity for the expected workload tor the new fiscal year benefit enrollment period plus some extra overhead Enrollment proceeds nicely for two days and then the web tier becomes unresponsive, upon investigation using CIoudWatch and other monitoring tools it is discovered that there is an extremely large and unanticipated amount of inbound traffic coming from a set of 15 specific IP addresses over port 80 from a country where the benefits company has no customers. The web tier instances are so overloaded that benefit enrollment administrators cannot even SSH into them. Which actMty would be useful in defending against this attack?

A. Create a custom route table associated with the web tier and block the attacking IP addresses from the IGW (Internet Gateway)

B. Change the EIP (Elastic IP Address) of the NAT instance in the web tier subnet and update the Main Route Table with the new EIP

C. Create 15 Security Group rules to block the attacking IP addresses over port 80

D. Create an inbound NACL (Network Access control list) associated with the web tier subnet with deny rules to block the attacking IP addresses

Answer:

Explanation:

Use AWS Identity and Access Management (IAM) to control who in your organization has permission to create and manage security groups and network ACLs (NACL). Isolate the responsibilities and roles for

better defense. For example, you can give only your network administrators or security ad min the permission to manage the security groups and restrict other roles.


Q199. Multi-AZ deployment _ supported for Microsoft SQL Server DB Instances.

A. is not currently

B. is as of 2013

C. is planned to be in 2014

D. will never be 

Answer: A


Q200. Your manager has just given you access to multiple VPN connections that someone else has recently set up between all your company's offices. She needs you to make sure that the communication between the VPNs is secure. Which of the following services would be best for providing a low-cost hub-and-spoke model for primary or backup connectMty between these remote offices?

A. Amazon C|oudFront

B. AWS Direct Connect

C. AWS C|oudHSM

D. AWS VPN CIoudHub 

Answer: D

Explanation:

If you have multiple VPN connections, you can provide secure communication between sites using the

AWS VPN CIoudHub. The VPN CIoudHub operates on a simple hub-and-spoke model that you can use with or without a VPC. This design is suitable for customers with multiple branch offices and existing Internet connections who would like to implement a convenient, potentially low-cost hub-and-spoke model for primary or backup connectMty between these remote offices.

Reference:  http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPN_CIoudHub.htmI


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