AWS - Q &A

 

Tricky Questions

  1. S3 Standard Storage Class has 99.999999999% Durability and 99.99% Availability

 

  1. What is the main benefit of on-demand EC2 instances?
    1. You can create, start, stop, and terminate at any time

 

  1. If you are using an on-demand EC2 instance, how are you being charged for it?
    1. You are charged per second, based on an hourly rate, and there are no termination fees

 

  1. What is benefit of choosing reserved instance over on-demand instance ?
    1. Lower cost when compared to on-demand

 

  1. Which AWS service can help against DDOs protection ?
    1. CloudFront

 

  1. Which AWS service can help caching objects ?
    1. CloudFront

 

  1. You are building online cloud storage platform. Users will be uploading their files for backup to your applications. You are unsure about the capacity requirements. Which AWS service can help you here ? 
    1. S3

 

  1. What is the benefit of using RDS instead of hosting own database in EC2 instance ? Which of the following are benefits of AWS's Relational Database Service (RDS)?
    1. Automated patches and backups

 

  1. Alice is a DevOps and he wants to ensure that all servers are working perfectly. One of the aspects is monitor the CPU usage. Application tends to slow down when CPU usage is greater then 60%. How can Alice track down when CPU usage goes above 60% for any of the EC2 instance ?
    1. Use CloudWatch Alarms

 

  1. You have a very critical application which your organization simply can't afford to have it down. What is the architecture strategy you would use to prepare to be used for the application ?
    1. Use Multi-region based architectures

 

  1. What is one of the advantages of the Amazon Relational Database Service (Amazon RDS)?
    1. It simplifies relational database administration tasks

 

  1. A customer needs to run a MySQL database that easily scales. Which AWS service should they use?
    1. Amazon Aurora

 

  1. Which of the following is a shared control between the customer and AWS?
    1. AWS is responsible for creating awareness and providing training of their employees. Client is responsible to do the same for their employees.
    2. Awareness and Training

 

  1. How many Availability Zones should compute resources be provisioned across to achieve high availability?
    1. Minimum of 2

 

  1. Which AWS IAM feature allows developers to access AWS services through the AWS CLI?
    1. Access Keys

 

  1. Which of the following is a fast and reliable NoSQL database service?
    1. Amazon DynamoDB

 

  1. What approach to transcoding a large number of individual video files adheres to AWS architecture principles?
    1. Using many instances in parallel

 

  1. Which of the following is an AWS managed Domain Name System (DNS) web service?
    1. Amazon Route 53

 

  1. Which storage service can be used as a low-cost option for hosting static websites?
    1. Amazon Simple Storage Service (S3)

 

  1. What is the AWS customer responsible for according to the AWS shared responsibility model?
    1. Data encryption

 

  1. Which of the following AWS Cloud services can be used to run a customer-managed relational database?
    1. Amazon EC2

 

  1. A company is looking for a scalable data warehouse solution. Which of the following AWS solutions would meet the company's needs?
    1. Amazon Redshift (warehouse!)

 

  1. Which of the following are valid ways for a customer to interact with AWS services?
    1. Command line interface

 

  1. What is the benefit of using AWS managed services, such as Amazon ElastiCache and Amazon Relational Database Service (Amazon RDS)?
    1. They simplify patching and updating underlying Oss

 

  1. Which AWS service provides a simple and scalable shared file storage solution for use with Linux-based AWS and on-premises servers?
    1. Amazon EFS (Elastic File System) ???

 

  1. Under the shared responsibility model, which of the following is a shared control between a customer and AWS?
    1. Patch management 

 

  1. Which AWS service allows companies to connect an Amazon VPC to an on-premises data center?
    1. Amazon Direct Connect

 

  1. Which AWS service provides alerts when an AWS event may impact a company's AWS resources?
    1. AWS Personal Health Dashboard

 

  1. Which task is AWS responsible for in the shared responsibility model for security and compliance?
    1. Updating Amazon EC2 host firmware

 

  1. If a customer needs to audit the change management of AWS resources, which of the following AWS services should the customer use?
    1. AWS Config

 

  1. What is Amazon CloudWatch?
    1. A metrics repository with customizable notification thresholds and channels

 

  1. Which design principles for cloud architecture are recommended when re-architecting a large monolithic application?
    1. Implement loose coupling
    2. Designing loosely-coupled system is one of the very important design principles.

 

  1. Which AWS services are defined as global instead of regional?
    1. Amazon CloudFront

                                                     i.     Amazon CloudFront is a Content Distribution Network for global access to data 

 

  1. Which AWS Cost Management tool allows you to view the most granular data about your AWS bill?
    1. AWS Cost and Usage Report

 

  1. Which of the following services falls under the responsibility of the customer to maintain operating system configuration, security patching, and networking?
    1. Amazon EC2

 

  1. Which service is best for storing common database query results, which helps to alleviate database access load?
    1. ElastiCache

 

  1. How does data get into Glacier ?
    1. S3 Lifecycle policy

                                                     i.     In order to upload to Glacier, S3 LifeCycle policy should be used

 

  1. Which of the following AWS services ensures that only authorized and authenticated request are allowed?
    1. AWS Identity and Access Management (IAM)

 

  1. Small Corp is planning to create a disaster recovery stratergy for their workloads in AWS. Which among these is a good DR stratergy for worst case scenerio?
    1. AWS Regions

 

  1. Which among the following is true about Availability Zones?
    1. Multiple zones across distinct locations in the same region connected by high speed networks

 

  1. The use of what AWS feature or service allows companies to track and categorize spending on a detailed level?
    1. Cost Allocation tags

 

  1. What AWS team assists customers with accelerating cloud adoption through paid engagements in any of several specialty practice areas?
    1. AWS Professional Services 

 

  1. A customer would like to design and build a new workload on AWS Cloud but does not have the AWS-related software technical expertise in-house.
    1. AWS Partner Network Consulting Partners

 

  1. Which AWS services can host a Microsoft SQL Server database?
    1. Amazon RDS
  2. Which AWS services can host a Microsoft SQL Server database?
    1. Amazon EC2 
  3. Which of the following Amazon EC2 pricing models allow customers to use existing server-bound software licenses?
    1. Dedicated Hosts
  4. Which services can be used across hybrid AWS Cloud architectures?
    1. Amazon Route 53
    2. **Virtual Private Gateways can also be used for hybrid architectures
  5. A company is considering using AWS for a self-hosted database that requires a nightly shutdown for maintenance and cost-saving purposes. Which service should the company use?
    1. Amazon EC2 with Amazon Elastic Block Store (EBS)
  6. Which is a recommended pattern for designing a highly available architecture on AWS?

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