Amazon AWS-Solution-Architect-Associate ExamAWS Certified Solutions Architect - Associate

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[Jul 2017] aws solution architect associate exam dumps

Exambible offers free demo for aws solution architect associate certification exam. "AWS Certified Solutions Architect - Associate", also known as aws solution architect associate certification exam, is a Amazon Certification. This set of posts, Passing the Amazon aws solution architect associate certification exam, will help you answer those questions. The aws solution architect associate certification Questions & Answers covers all the knowledge points of the real exam. 100% real Amazon aws solution architect associate dumps exams and revised by experts!

Q1. You are setting up your first Amazon Virtual Private Cloud (Amazon VPC) network so you decide you should probably use the AWS Management Console and the VPC Wizard. Which of the following is not an option for network architectures after launching the "Start VPC Wizard" in Amazon VPC page on the AWS Management Console?

A. VPC with a Single Public Subnet Only

B. VPC with a Public Subnet Only and Hardware VPN Access

C. VPC with Public and Private Subnets and Hardware VPN Access

D. VPC with a Private Subnet Only and Hardware VPN Access 

Answer: B

Explanation:

Amazon VPC enables you to build a virtual network in the AWS cloud - no VPNs, hardware, or physical datacenters required.

Your AWS resources are automatically provisioned in a ready-to-use default VPC. You can choose to create additional VPCs by going to Amazon VPC page on the AWS Management Console and click on the "Start VPC Wizard" button.

You’II be presented with four basic options for network architectures. After selecting an option, you can modify the size and IP address range of the VPC and its subnets. If you select an option with Hardware VPN Access, you will need to specify the IP address of the VPN hardware on your network. You can modify the VPC to add more subnets or add or remove gateways at any time after the VPC has been created.

The four options are:

VPC with a Single Public Subnet Only VPC with Public and Private Subnets

VPC with Public and Private Subnets and Hardware VPN Access VPC with a Private Subnet Only and Hardware VPN Access Reference: https://aws.amazon.com/vpc/faqs/


Q2. A, _ is an indMdual, system, or application that interacts with AWS programmatically.

A. user

B. AWS Account

C. Group

D. Role 

Answer: A


Q3. 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.


Q4. As AWS grows, most of your cIients' main concerns seem to be about security, especially when all of their competitors also seem to be using AWS. One of your clients asks you whether having a competitor who hosts their EC2 instances on the same physical host would make it easier for the competitor to hack into  the cIient's data. Which of the following statements would be the best choice to put your cIient's mind at rest?

A. Different instances running on the same physical machine are isolated from each other via a 256-bit Advanced Encryption Standard (AES-256).

B. Different instances running on the same physical machine are isolated from each other via the Xen hypervisor and via a 256-bit Advanced Encryption Standard (AES-256).

C. Different instances running on the same physical machine are isolated from each other via the Xen hypervisor.

D. Different instances running on the same physical machine are isolated from each other via IAM permissions.

Answer: C

Explanation:

Amazon Elastic Compute Cloud (EC2) is a key component in Amazon’s Infrastructure as a Service (IaaS), providing resizable computing capacity using server instances in AWS’s data centers. Amazon EC2 is designed to make web-scale computing easier by enabling you to obtain and configure capacity with minimal friction.

You create and launch instances, which are collections of platform hardware and software. Different instances running on the same physical machine are isolated from each other via the Xen hypervisor.

Amazon is active in the Xen community, which provides awareness of the latest developments. In addition, the AWS firewall resides within the hypervisor layer, between the physical network interface and the instance's virtual interface. All packets must pass through this layer, thus an instance’s neighbors have no more access to that instance than any other host on the Internet and can be treated as if they are on

separate physical hosts. The physical RAM is separated using similar mechanisms.

Reference:  http://d0.awsstatic.com/whitepapers/Security/AWS%20Security%20Whitepaper.pdf


Q5. You have launched an EC2 instance with four (4) 500GB EBS Provisioned IOPS volumes attached The EC2 Instance Is EBS-Optimized and supports 500 Mbps throughput between EC2 and EBS The two EBS volumes are configured as a single RAID o device, and each Provisioned IOPS volume is provisioned with

4.000 IOPS (4 000 16KB reads or writes) for a total of 16.000 random IOPS on the instance The EC2 Instance initially delivers the expected 16 000 IOPS random read and write performance Sometime later in order to increase the total random 1/0 performance of the instance, you add an additional two 500 GB EBS Provisioned IOPS volumes to the RAID Each volume Is provisioned to 4.000 IOPs like the original four for a total of 24.000 IOPS on the EC2 instance Monitoring shows that the EC2 instance CPU utilization increased from 50% to 70%. but the total random IOPS measured at the instance level does not increase at all.

What is the problem and a valid solution?

A. Larger storage volumes support higher Provisioned IOPS rates: increase the provisioned volume

storage of each of the 6 EBS volumes to ITB

B. The EBS-Optimized throughput limits the total IOPS that can be utilized use an EBS-Optimized instance that provides larger throughput.

C. Small block sizes cause performance degradation, limiting the 1'0 throughput, configure the instance device driver and file system to use 64KB blocks to increase throughput.

D. RAID 0 only scales linearly to about 4 devices, use RAID 0 with 4 EBS Provisioned IOPS volumes but increase each Provisioned IOPS EBS volume to 6.000 IOPS.

E. The standard EBS instance root volume limits the total IOPS rate, change the instant root volume to also be a 500GB 4.000 Provisioned IOPS volume.

Answer: E


Q6. You need to change some settings on Amazon Relational Database Service but you do not want the database to reboot immediately which you know might happen depending on the setting that you change. Which of the following will cause an immediate DB instance reboot to occur?

A. You change storage type from standard to PIOPS, and Apply Immediately is set to true.

B. You change the DB instance class, and Apply Immediately is set to false.

C. You change a static parameter in a DB parameter group.

D. You change the backup retention period for a DB instance from 0 to a nonzero value or from a nonzero value to 0, and Apply Immediately is set to false.

Answer:

Explanation:

A DB instance outage can occur when a DB instance is rebooted, when the DB instance is put into a state that prevents access to it, and when the database is restarted. A reboot can occur when you manually reboot your DB instance or when you change a DB instance setting that requires a reboot before it can take effect.

A DB instance reboot occurs immediately when one of the following occurs:

You change the backup retention period for a DB instance from 0 to a nonzero value or from a nonzero value to 0 and set Apply Immediately to true.

You change the DB instance class, and Apply Immediately is set to true.

You change storage type from standard to PIOPS, and Apply Immediately is set to true.

A DB instance reboot occurs during the maintenance window when one of the following occurs:

You change the backup retention period for a DB instance from 0 to a nonzero value or from a nonzero value to 0, and Apply Immediately is set to false.

You change the DB instance class, and Apply Immediately is set to false. Reference:

http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Troub|eshooting.htm|#CHAP_TroubI eshooting.Security


Q7. SQL Sewer _ store log ins and passwords in the master database.

A. can be configured to but by default does not

B. doesn't

C. does 

Answer: C


Q8. Through which of the following interfaces is AWS Identity and Access Management available?

A) AWS Management Console

B) Command line interface (CLI}

C) IAM Query API

D) Existing libraries

A. Only through Command line interface (CLI )

B. A, Band C

C. A and C

D. All of the above 

Answer: D


Q9. Is creating a Read Replica of another Read Replica supported?

A. Only in certain regions

B. Only with MSSQL based RDS

C. Only for Oracle RDS types

D. No

Answer: D


Q10. You have just finshed setting up an advertisement server in which one of the obvious choices for a service was Amazon Elastic Map Reduce( EMR) and are now troubleshooting some weird cluster states that you are seeing. Which of the below is not an Amazon EMR cluster state?

A. STARTING

B. STOPPED

C. RUNNING

D. WAITING

Answer:

Explanation:

Amazon Elastic Map Reduce (EMR) is a web service that enables businesses, researchers, data analysts, and developers to easily and cost-effectively process vast amounts of data.

Amazon EMR historically referred to an Amazon EMR cluster (and all processing steps assigned to it) as a "c|uster". Every cluster has a unique identifier that starts with "j-".

The different cluster states of an Amazon EMR cluster are listed below. STARTING — The cluster provisions, starts, and configures EC2 instances. BOOTSTRAPPING — Bootstrap actions are being executed on the cluster. RUNNING — A step for the cluster is currently being run.

WAITING — The cluster is currently active, but has no steps to run. TERMINATING - The cluster is in the process of shutting down. TERMINATED - The cluster was shut down without error. TERMINATED_W|TH_ERRORS - The cluster was shut down with errors. 

Reference: https://aws.amazon.com/elasticmapreduce/faqs/


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