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Study all 100 questions at your own pace with detailed explanations
Total: 100 questionsPage: 3 of 10
Question 21 of 100
You are running a successful multi-tier web application on AWS and your marketing department has asked you to add a reporting tier to the application. The reporting tier will aggregate and publish status reports every 30 minutes from user-generated information that is being stored in your web applications database. You are currently running a Multi-AZ RDS MySQL instance for the database tier. You also have implemented ElastiCache as a database caching layer between the application tier and database tier. Please select the answer that will allow you to successfully implement the reporting tier with as little impact as possible to your database.
AContinually send transaction logs from your master database to an S3 bucket and generate the reports off the S3 bucket using S3 byte range requests.
BGenerate the reports by querying the synchronously replicated standby RDS MySQL instance maintained through Multi-AZ
CLaunch a RDS Read Replica connected to your Multi AZ master database and generate reports by querying the Read Replica.
DGenerate the reports by querying the ElastiCache database caching tier.
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Question 22 of 100Multiple Choice
Your team is building up a smart home iOS APP. The end users will use your company’s camera-equipped home devices such as baby monitors, webcams, and home surveillance systems. Then the videos would be uploaded to AWS. The users can then play the on-demand or live videos using the format of HTTP Live Streaming (HLS) through the Mobile application. Which combinations of steps should you use to design the solution? (Select TWO)
ACreate a Kinesis Data Firehose to ingest, durably store and encrypt the live videos from the users' home devices.
BCreate a Kinesis video stream to capture, store, and index the videos from the camera-equipped home devices.
CTransform the stream data to HLS compatible data by using Kinesis Data Analytics or customer code in EC2/Lambda. Then in the mobile application, use HLS protocol to display the video stream by using the converted HLS streaming data.
DIn the mobile application, use HLS to display the video stream by using the HLS streaming session URL.
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Question 23 of 100
You are designing Internet connectivity for your VPC. The Web servers must be available on the Internet. The application must have a highly available architecture. Which alternatives should you consider? (Choose 2 answers)
AConfigure a NAT instance in your VPC. Create a default route via the NAT instance and associate it with all subnets. Configure a DNS A record that points to the NAT instance public IP address
BConfigure a CloudFront distribution and configure the origin to point to the private IP addresses of your Web servers. Configure a Route 53 CNAME record to your CloudFront distribution.
CPlace all your web servers behind ELB. Configure a Route 53 CNAME to point to the ELB DNS name.
DAssign EIPs to all web servers. Configure a Route 53 record set with all EIPs. With health checks and DNS failover.
EConfigure ELB with an EIP. Place all your Web servers behind ELB Configure a Route 53 A record that points to the EIP
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Question 24 of 100
You are tasked with moving a legacy application from a virtual machine running inside your datacenter to an Amazon VPC. Unfortunately this app requires access to a number of on-premises services and no one who configured the app still works for your company. Even worse there’s no documentation for it. What will allow the application running inside the VPC to reach back and access its internal dependencies without being reconfigured? (Choose 3 answers)
AAn AWS Direct Connect link between the VPC and the network housing the internal services
BAn Internet Gateway to allow a VPN connection.
CAn Elastic IP address on the VPC instance
DAn IP address space that does not conflict with the one on-premises
EEntries in Amazon Route 53 that allow the Instance to resolve its dependencies’ IP addresses
FA VM Import of the current virtual machine
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Question 25 of 100
A customer has a 10 GB AWS Direct Connect connection to an AWS region where they have a web application hosted on Amazon Elastic Computer Cloud (EC2). The application has dependencies on an on-premises mainframe database that uses a BASE (Basic Available. Sort stale Eventual consistency) rather than an ACID (Atomicity. Consistency isolation. Durability) consistency model. The application is exhibiting undesirable behavior because the database is not able to handle the volume of writes. How can you reduce the load on your on-premises database resources in the most cost-effective way?
AUse an Amazon Elastic Map Reduce (EMR) S3DistCp as a synchronization mechanism between the on-premises database and a Hadoop cluster on AWS.
BModify the application to write to an Amazon SQS queue and develop a worker process to flush the queue to the on-premises database
CModify the application to use DynamoDB to feed an EMR cluster, which uses a map function to write to the on-premises database.
DProvision an RDS read-replica database on AWS to handle the writes and synchronize the two databases using Data Pipeline.
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Question 26 of 100
A few weeks into your dream job with the large scientific institution, a group of EC2 instances that you set up in a Placement Group doesn't seem to run as efficiently as you expected it to and seems to be suffering from low performance of packets, high latency and lots of jitter. Consequently, you have started to look at ways to fix this. Which of the following solutions would create enhanced networking capabilities on instances that would result in higher instances of packets per second, lower latency, and reduced jitter? Choose the correct answer
AUsing Single Root I/O Virtualization (SR-IOV) on all the instances.
BIncreasing the size of all the instances.
CAdding more instances to the Placement Group. Making sure you stop and restart all the other instances at the same time.
DSplitting the instances across two Placement Groups in the same Availability Zone
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Question 27 of 100
A customer implemented AWS Storage Gateway with a gateway-cached volume at their main office. An event takes the link between the main and branch office offline. Which methods will enable the branch office to access their data? Choose 3 answers
AUse a HTTPS GET to the Amazon S3 bucket where the files are located.
BRestore by implementing a lifecycle policy on the Amazon S3 bucket.
CMake an Amazon Glacier Restore API call to load the files into another Amazon S3 bucket within four to six hours.
DLaunch a new AWS Storage Gateway instance AMI in Amazon EC2, and restore from a gateway snapshot.
ECreate an Amazon EBS volume from a gateway snapshot, and mount it to an Amazon EC2instance
FLaunch an AWS Storage Gateway virtual iSCSI device at the branch office, and restore from a gateway snapshot
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Question 28 of 100
A legacy software is hosted on an EC2 instance which has the License tied to the MAC address. So from your experience with AWS you know that every time an instance is restarted it will almost certainly lose its MAC address. What would be a possible solution to this given the options below? Choose an answer from the options below
AMake sure any EC2 instance that you deploy has a static IP address that is mapped to the MAC address.
BUse a VPC with a private subnet for the license and a public subnet for the EC2.
CUse a VPC with a private subnet and configure the MAC address to be tied to that subnet.
DUse a VPC with an elastic network interface that has a fixed MAC Address.
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Question 29 of 100
You have recently completed a large project implementation in a major enterprise client and are looking at how to optimise cost. The client uses 47 AWS accounts spread across their various business units and DEV, TEST and PROD teams. The utilisation in these accounts is varied and uncertain but you begin to see levels of baseload in each account. Which of the following options represents the best method to achieve cost reductions via reserved instances?
ADisable Reserved Instance Sharing on all member accounts, purchase an appropriate number of reserved instances based on the consolidated load on the organization master account
BEnable Reserved Instance Sharing on reserved instances in the master account
CEnable Reserved Instance Sharing on all member accounts & purchase reserved instances in the master account
DDisable Reserved Instance Sharing on all member accounts, purchase an appropriate number of reserved instances on a per account basis - overestimate the load to account for growth.
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Question 30 of 100
In an attempt to cut costs your accounts manager has come to you and tells you that he thinks that if the company starts to use consolidated billing that it will save some money. He also wants the billing set up in such a way that it is relatively simple, and it gives insights into the environment regarding utilization of resources. Which of the following consolidated billing setups would satisfy your account manager's needs? Choose the 2 correct answers
AUse roles for IAM account simplicity across multiple AWS linked accounts.
BUse one master account and many sub accounts.
CUse one master account and no sub accounts.
DUse one account but multiple VPCs to break out environments.
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