40+ [REAL-TIME] AWS SysOps Interview Questions and Answers

Last updated on 17th Nov 2021, Blog, Interview Questions

These AWS SysOps Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of AWS SysOps. As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based on further discussion and what you answer.we are going to cover top 100 AWS SysOps Interview questions along with their detailed answers. We will be covering AWS SysOps scenario based interview questions, AWS SysOps interview questions for freshers as well as AWS SysOps interview questions and answers for experienced.

1. Does Amazon VPC support the property of broadcast or multicast?

Ans:

No, it doesn’t

2. Define roles?

Ans:

It provides permissions to entities that can be trusted within your AWS account. It is very similar to users. With roles, creating any username and password to work with the resources is not required.

3. Define Edge locations?

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The area where the contents will be cached is Edge Location. So the content will automatically be searched in the edge location when a user is trying to access any content.

4.What is VPC?

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VPC is Virtual Private Cloud. It enables customization of your networking configuration. This network is isolated from another network in the cloud. It allows you to have your IP address range, internet gateways, subnet and security groups.

5. What is a Snowball?

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Snowball is a data transport option. Source appliances are used to move a large amount of data in & out of AWS. It enables one to transfer a massive amount of data from one place to another. It makes networking cost effective.

6. Define Redshift?

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It is a big data warehouse product. It is one of the most powerful, fast & fully managed data warehouse service in the cloud.

7.What benefits does auto-scaling bring in?

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It offers fault tolerance, effective cost management & better availability.

8. What is Subnet?

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A large section of IP Address which is divided into chunks is called subnets.

9.What is SQL?

Ans:

SQL is Simple Queues Services. It is a distributed queuing service & it acts as a mediator for two controllers.

10. Define SimpleDB?

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Simple DB is also known as key value data store. It is highly available & flexible non-relational database that enables developers to request and store data with minimal database management and administrative responsibility.

11.How many AWS services are there in 2020?

Ans:

The AWS Serverless Application repository is available in the AWS GovCloud (US-East) region. Hence, the availability of the services has increased to a total of 18 AWS regions i.e. across North America, South America, the EU & the Asia Pacific.

12. Cheapest AWS region?

Ans:

The US standard is the most established and cheapest AWS region.

13. Popular services of AWS ?

Ans:

The most popular AWS Services are Amazon S3, AWS Lambda, Amazon Glacier, Amazon EC2, Amazon SNS, Amazon CloudFront, Amazon EBS, Amazon Kinesis, Amazon VPC, Amazon SQ.

14. Is Amazon S3 service globally available?

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Yes, it is a global service. Object storage is provided through the web interface and it runs its global e-commerce network by using Amazon scalable storage infrastructure.

15. Advantages of AWS?

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Easy to Use, Wide Range of Service, No Limitation (Server Capacity),Highly Reliable, Managed IT Services, Flexible and Affordable.

16. What is Auto Scaling?

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Auto scaling enables automatic scaling of the capacity to maintain steady and predictable performance. By using this one can scale up various resources across various services in minutes.

17. How do you set up a system to monitor website metrics in real-time in AWS?

Ans:

With the help of Amazon CloudWatch, one can monitor the application status of various AWS services and custom events.

• State Changes in Amazon EC2, Auto-scaling Lifecycle events, Scheduled events, AWS API calls & Console Sign-in events, all these can be monitored with the help of Amazon CloudWatch.

18. What are the different types of virtualization in AWS?/strong>

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There are three types of virtualization in AWS i.e. Hardware Virtual Machine, Paravirtualization & Paravirtualization in HVM.

19. What is geo-targeting in CloudFront?

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For instance, if you want your business to produce and show personalized content to the audience based on their geographic location without making any changes to the URL then simply go for geo-targeting.

• Geo-targeting aids one in creating a customized content for the group of spectators of a specific geographical area by giving priority to their needs.

20. What are the differences between NAT Gateways and NAT Instances?

Ans:

Though both NAT Gateways and NAT Instances provides very similar functions. Below mentioned are some of the key differences.

Functions	NAT Gateways	NAT Instances
Availability	It is high	It is high
Bandwidth	Here, it is up to 45Gbps	Here, it depends upon instances bandwidth
Maintenance	AWS manages it	You can manage it
Performance	It delivers good performance	It delivers average performance
Cost	It depends upon No. of gateways, duration and amount of usage.	It depends upon No. of instances, duration, amount & type of usage.
Size and Load	There is uniformity	It can be changed as per the requirement
Security Groups	Not possible	Possible

21. What are the tools and techniques that you can use in AWS to identify if you are paying more than you should be, and how to correct it?

Ans:

The below-mentioned resources will help you to understand whether the amount you are paying for the resource is accurate or not.

• Check the top services table: This is available on the dashboard in the cost management console which will show you the top five services that are used the most. It will also explain how much you are paying on the resources in question.
• Cost explorer: One can see and check the usage cost for 13 months. Also you will come to know the amount for the coming three months.
• Cost allocation tags: Helps you in identifying the resource that has cost you more in a particular month. It also organizes and track your resource.

22. What services can be used to create a centralized logging solution?

Ans:

The below mentioned services can be used for centralized logging solution.

• Amazon CloudWatch Logs, this can be stored in Amazon S3.
• Amazon Elastic Search can be used to visualize them.
• Amazon Kinesis Firehose can be used to move data from Amazon S3 to Amazon ElasticSearch.

23. What is the difference between stopping and terminating an EC2 instance?

Ans:

For many Stopping and Terminating may sound very similar, however there is a huge difference.

• Stopping an EC2 instance means there will be a normal shutdown on the instance and it will move to a stopped state.
• Terminating an EC2 instance means it will not only move to a stopped state but the EBS volume attached to it will be deleted and it will never be recovered.

24. What are the different types of EC2 instances?

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There are three types of EC2 Instances i.e. On-demand Instance, Spot Instance & Reserved Instance

25.What are the common types of AMI designs?

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The types are completely baked AMI which are Slightly baked AMI (JeOS AMI) & Hybrid AMI.

26. How do you allow a user to gain access to a specific bucket?

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If you want to provide access to the user to a specific bucket, then simply follow the below mentioned steps.

• Categorize your instances.
• Define how authorized users can manage specific servers.
• Lockdown your tags.
• Attach your policies to IAM users.v

27. How do you monitor Amazon VPC?

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One can control VPC by using CloudWatch and CloudWatch logs & VPC flow logs

28. What are the factors to consider while migrating to Amazon Web Services?

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Operational amount, Workforce Capacity, Cost evasion, Operational facility & Business quickness are the factors that need to be considered while migrating to Amazon Web Services.

29. What are RTO and RPO in AWS?

Ans:

RTO stands for Recovery Time Objective. It can be defined as the maximum time your organization is willing to wait for a recovery to complete in the wake of an outage.

• RPO stands for Recovery Point Objective. It is the maximum amount of data which is lost and your organization willing accepts it as a measured in time.

30. How is AWS CloudFormation different from AWS Elastic Beanstalk?

Ans:

AWS Cloud Formation aids you in provisioning and describing the infrastructure resources that is available in your cloud environment. It also supports the infrastructure needs of different types of applications.

• AWS Elastic Beanstalk gives such an environment which will make deployment and running application in the cloud easier. It helps in managing the lifecycle of your application by collaborating with the developer’s tool.

31.How can you automate EC2 backup using EBS?

Ans:

This can be done by following the below mentioned steps:

• Firstly get the list of instances and then connect to AWS via API, so that you can list the Amazon EBS volumes that are attached locally to the instances.
This can be done by following the below mentioned steps:
• Firstly get the list of instances and then connect to AWS via API, so that you can list the Amazon EBS volumes that are attached locally to the instances.
• Prepare a list of snapshots of each volume and then assign a retention period of the snapshot. Post this; create a snapshot of each volume.
• Remove the snapshot if it is older than the retention period.

32. What are the consistency models in DynamoDB?

Ans:

Eventual Consistency Model and Strong Consistency Model are the two models in DynamoDB.

• Eventual Consistency Model, it maximizes read throughput but it doesn’t display the output of a recently completed write.
• Strong Consistency Model, it delays in writing the data, however it shows the updated data every time you read it.

33.How does AWS config work with AWS CloudTrail?

Ans:

AWS Cloud Trail records the API activity of the user on your account and then it enables you to access the same information.

• The entire details about API actions can be gained by using CloudTrail.
• Point-in-time configuration details are captured by AWS Config, for your AWS resources as Configuration Items.
• These Configuration items help you in understanding that how your AWS resource will appear like at any given point in time.
• Who made an API call for the modification of resources, such question can be answered in no time with the help of CloudTrail.
• CloudTrail also aids in detecting a security group that was wrongly configured.

34. How does AWS IAM help your business?

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It helps business by managing IAM users and their access & it also manages access for federated users.

35. What are the different types of load balancers in AWS?

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There are three types of load balancers in AWS i.e. Application load balancer, Network load balancer & Classic load balancer.

36.Explain what AWS is?

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AWS stands for Amazon Web Service; it is a collection of remote computing services also known as a cloud computing platform. This new realm of cloud computing is also known as IaaS or Infrastructure as a Service.

37. What are key-pairs in AWS?

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Key-pairs are secure login information for your virtual machines. To connect to the instances, you can use key-pairs which contain a public-key and private-key.

38. What do you mean by Amazon Web Services (AWS)?

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Amazon web service is a platform that offers flexible, reliable, scalable, easy-to-use and cost-effective cloud computing solutions. It offers cloud computing, databases, storage facilities, content deliveries and many other states of art services to business of any scale. Offering over 200 fully featured services from data centers globally.

39. What is Cloud Computing?

Ans:

Cloud computing is a term referred to storing and accessing data over the internet. Cloud computing is the on-demand delivery of IT resources over the Internet with pay-as-you-go pricing. It doesn’t store any data on the hard disk of your personal computer. In cloud computing, you can access data from a remote server.

40. What are the roles and responsibilities of SysOps Administrator Associate?

Ans:

The main responsibility of an AWS Administrator is to configure cloud management services on AWS in the organization. Moreover, the following are some additional and yet significant roles of AWS Certified SysOps Administrator Associate.

• Firstly, Managing the complete AWS life cycle, along with security, provisioning, and automation.
• Secondly, Administrating and establishing the architecture of multi-tier systems
• Thirdly, Performing services such as kernel patching, errata patching, and software upgrades
• Fourthly, Effectively monitoring performance degree and its availability
• Lastly, Creating backups and managing disaster recovery

41. What is the use of AWS Well-Architected Framework?

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AWS Well-Architected helps cloud architects to build secure, high-performing, resilient, and efficient infrastructure for their applications and workloads. It is based on five pillars — operational excellence, security, reliability, performance efficiency, and cost optimization. AWS Well-Architected provides a consistent approach for customers and partners to evaluate architectures, and implement designs that can scale over time.

42. What is an Operational Excellence Pillar?

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The operational excellence pillar focus on running and monitoring systems to deliver business value, and continually improving processes and procedures. Major topics include automating changes, responding to events, and defining standards to manage daily operations.

43. What do you understand by Security Pillar?

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The security pillar major area of concern is protecting information and systems. Key topics include confidentiality and integrity of data, identifying and managing who can do what with privilege management, protecting systems, and establishing controls to detect security events.

44.What is a Reliability Pillar?

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The reliability pillar focuses on ensuring a workload performs its intended function correctly and consistently when it’s expected to. A resilient workload quickly recovers from failures to meet business and customer demand. Major topics of concern include distributed system design, recovery planning, and how to handle change.

45. What do you understand by Performance Efficiency Pillar?

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The performance efficiency pillar concerned on areas using IT and computing resources efficiently. Key topics include selecting the right resource types and sizes based on workload requirements, monitoring performance, and making informed decisions to maintain efficiency as business needs evolve.

46. What are Cost Optimization Pillars?

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The cost optimization pillar focuses on avoiding unnecessary costs. Key topics include understanding and controlling where money is being spent, selecting the most appropriate and right number of resource types, analyzing spend over time, and scaling to meet business needs without overspending.

47.What Is Amazon CloudWatch Logs?

Ans:

Amazon CloudWatch Logs to monitor, store, and access its user’s log files from Amazon Elastic Compute Cloud (Amazon EC2) instances, AWS CloudTrail, Route 53, and other sources. Moreover, it enables you to centralize the logs from all of your systems, applications, and AWS services that you use, in a single, highly scalable service. One can use logs to see all of your logs, regardless of their source, as a single and consistent flow of events ordered by time, and you can query them and sort them based on other dimensions, group them by specific fields, create custom computations with a powerful query language, and visualize log data in dashboards.

48. What do you mean by auto-scaling?

Ans:

AWS Auto Scaling analyzes your applications and automatically adjusts capacity to maintain steady, predictable performance at the lowest possible cost. Moreover, with AWS Auto Scaling, it’s easy to set up application scaling for multiple resources across multiple services in minutes. AWS Auto Scaling makes scaling simple with suggestions that allow you to optimize performance, costs, or balance between them. With AWS Auto Scaling, your applications always have the right resources at the right time.

49. What are the benefits of auto-scaling?

Ans:

Setup scaling quickly: AWS Auto Scaling allows you to set target utilization levels for multiple resources in a single, intuitive interface. You can quickly see the average utilization of all of your scalable resources without having to navigate to other consoles.

• Make smart scaling decisions: AWS Auto Scaling allows you to build scaling plans that automate how groups of different resources respond to changes in demand. You can optimize availability, costs, or a balance of both. AWS Auto Scaling automatically creates all of the scaling policies and sets targets for you based on your preference.
• Automatically maintain performance: While using AWS Auto Scaling, you maintain optimal application performance and availability, even when workloads are periodic, unpredictable, or continuously changing. AWS Auto Scaling monitors your applications to make sure that they are operating at your desired performance levels.
• Pay only for what you need: Auto Scaling helps you optimize your utilization and cost efficiencies when using AWS services so that you only pay for the resources you actually need. When demand drops, AWS Auto Scaling will automatically remove all excess resource capacity so you avoid overspending.

50. Is AWS Auto Scaling free?

Ans:

Yes, AWS Auto Scaling is free to use, and allows you to optimize the costs of your AWS environment.

51. Differentiate between horizontal scaling and vertical scaling?

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Horizontal Scaling is the act of changing the number of nodes in a computing system without changing the size of any individual node. Whereas, Vertical Scaling is increasing the size and computing power of a single instance or node without increasing the number of nodes or instances.

52. Define the term Instance?

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An instance is a single physical or virtual server in a computer architecture. The term Node and Instance can be used interchangeably in most systems, though in some systems an instance can hold the operation of many nodes.

53. What is the Amazon EC2 service?

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Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides secure, resizable compute capacity in the cloud. It is specially designed to make web-scale cloud computing easier for developers. Moreover, the simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment.

54. What are the features of Amazon EC2 Services?

Ans:

Amazon EC2 provides a number of useful and powerful features for building scalable, failure resilient, enterprise class applications.

• Firstly, Bare Metal instances
• Optimize Compute Performance and Cost with Amazon EC2 Fleet
• GPU Compute Instances
• GPU Graphics Instances
• High I/O Instances
• Optimized CPU Configurations
• Flexible Storage Options
• Paying for What You Use
• Enhanced Networking
• Lastly, High Performance Computing (HPC) Clusters

55. What is Amazon EFS?

Ans:

Amazon EFS provides a simple, serverless, set-and-forget elastic file system. With Amazon EFS, you can create a file system, mount the file system on an Amazon EC2 instance, and then read and write data to and from your file system.

56. What does Amazon RDS Multi-AZ Deployments offers?

Ans:

Amazon RDS Multi-AZ deployments offer enhanced availability and durability for RDS database (DB) instances, making them a naturally fit for production database workloads. Moreover, when you provision a Multi-AZ DB Instance, Amazon RDS automatically creates a primary DB Instance and synchronously replicates the data to a standby instance in a different AZ.

57.What is the relation between Instance and AMI?

Ans:

Amazon Web Services offer it’s users with various methods to access Amazon EC2. Web based interface, Amazon Web Services command line interface and Amazon tools for windows Powershell. For access these one has to sign up for an Amazon Web Services account to access the Amazon EC2. Moreover, many instances can be launched from a single AMI. An instance typically symbolizes the hardware of the host computer. Each instance type offers different computing and memory capabilities.

58.Explain briefly Amazon S3 Replication?

Ans:

Amazon Simple Storage Service (S3) Replication is an elastic, versatile, fully managed, low cost feature that replicates objects between buckets. S3 Replication offers the most flexibility and functionality in cloud storage, giving you the controls you need to meet your data sovereignty and other business needs.

59. Define Recovery Time Objective (RTO)?

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RTO is the maximum acceptable delay between the interruption of service and restoration of service. This determines what is considered an acceptable time window when service is unavailable.

60. Define Recovery Point Objective (RPO)?

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RPO is the maximum acceptable amount of time since the last data recovery point. This determines what is considered an acceptable loss of data between the last recovery point and the interruption of service.

61. How EC2 Image Builder works?

Ans:

Specify pipeline details: Enter information about your pipeline, such as a name, description, tags, and a schedule to run automated builds. You can choose manual builds if you prefer.

• Choose recipe: Choose between building an AMI, or building a container image. For both types of output images, you enter a name and version for your recipe, select a source image, and choose components to add for building and testing.
• Define infrastructure configuration: Image Builder launches Amazon EC2 instances in your account to customize images and run validation tests.
• Define distribution settings: Choose the AWS Regions to distribute your image to after the build is complete and has passed all its tests. Moreover, the pipeline automatically distributes your image to the Region where it runs the build, and you can add image distribution for other Regions.

62. What is the use of Blue/Green deployment with CodeDeploy?

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The blue/green deployment type uses the blue/green deployment model controlled by CodeDeploy. This deployment type enables you to verify a new deployment of service before sending production traffic to it.

63. Explain the three ways traffic can shift during a blue/green deployment?

Ans:

Canary: You can choose from predefined canary options that specify the percentage of traffic shifted to your updated task set in the first increment and the interval, in minutes, before the remaining traffic is shifted in the second increment.

• Linear: Traffic is shifted in equal increments with an equal number of minutes between each increment. You can choose from predefined linear options that specify the percentage of traffic shifted in each increment and the number of minutes between each increment.
• All-at-once: All traffic is shifted from the original task set to the updated task set all at once.

64. What do you know about AWS Config?

Ans:

AWS Config is a service that allow users to assess, audit, and evaluate the configurations of your AWS resources. Config continuously monitors and records your AWS resource configurations and allows you to automate the evaluation of recorded configurations against desired configurations. With Config, you can review changes in configurations and relationships between AWS resources. This enables you to simplify compliance auditing, security analysis, change management, and operational troubleshooting.

65. Explain how AWS Control Tower is useful to users?

Ans:

Customer with multiple AWS accounts and teams, cloud setup and governance can be complex and time-consuming, slowing down your processes. AWS Control Tower provides the easiest way to set up and govern a secure, multi-account AWS environment, called a landing zone. Moreover, AWS customers can implement AWS Control Tower, extend governance into new or existing accounts, and gain visibility into their compliance status quickly.

66. Should Configuration Management be provisioned in Clod Services?

Ans:

Configuration Management was applicable to physical servers for hosting their websites locally and was needed to upgrade as per the requirement of the software version. It was a cumbersome activity and cost huge. As in the cloud, it’s not preferable as a wide range of services vary on the configuration of the AMIs. If given the option in the cloud, chances of disasters will be on the rise leading to data recovery more often.

67. What is Configuration Management?

Ans:

In earlier days when the server was just started to be found necessary for cooperates, many system administrators prefer manually configuration of the servers as the software was made prior to the era of version control. That’s why each and every server is slightly different than the other. This technique of manual configuration of servers is being practiced for a long but somehow it wasn’t popular.

68.How can I build an AMI?

Ans:

Building an AMI can be initiated by spinning up an instance on a trusted AMI. Then we can add up the packages and components as required. For instance, the access credentials have to be put into a database after launching the instance. On-screen guidance is also available after each and every step through dialogue boxes.

69. Should Encryption be done in S3?

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Simple Storage Service is a proprietary service of Amazon and a security point of view is yet to be proven. Sensitive data can be encrypted as per the need of the organization.

70. What do you know about S3 and what are its uses of?

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It’s just like FTP services, where you can move files to and fro but cannot mount them. S3 can be used for storing and retrieving data from anywhere and anytime using the web. Most of the organization stores data like documents and other images here. We can pay for the S3 service as we required.

71. What do you understand about elastic block storage?

Ans:

EBS is a virtual storage area network (SAN) which means it is RAID storage and is redundant-free and fault-tolerant. If the disk is corrupt, then data is not lost as it has been virtualized. It can be managed on its own and no need to call storage experts for services. The data can be recovered and reinstalled as & when necessary.

72.What are the best security practices exercised in Amazon EC2?

Ans:

> Using Amazon Web Services we can achieve identity and the access >> We use Management control to access your resources >> Restricted accesses from trusted networks are allowed to access the ports on your instance.

73. What is the relation between Instance and AMI?

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Amazon Web Services provides various methods to access Amazon EC2. Web-based interface, Amazon Web Services command line interface and Amazon tools for windows Powershell. For this one has to sign up for an Amazon Web Services account to access the Amazon EC2. From a single AMI, many instances can be launched. An instance typically symbolizes the hardware of the host computer. Each instance type offers different computing and memory capabilities.

74. How does the process start, stop and terminate tasks?

Ans:

If an instance is closed, it functions as usual power cut and changes over to a clogged position. If the instance gets terminated it performs like a total blackout and the attached volumes will be removed except the volumes delete on termination characteristic is set to zero.

75.How can an Amazon instance be scaled vertically?

Ans:

It is one of the most credible characteristics of Amazon Web Services. Spinup should be the last line of defense. We should increase the instance and separate the root EBS volume and remove it from this server. The distinctive device ID should be noted down and appended to the new server and the machine should be started again. This is the most efficient method to scale up vertically in Amazon Web Services.

76.Which automatic gears help us with spinup services?

Ans:

API tools that are normally used for writing scripts are being used for spinup services. These can be scripted in Perl, bash or any other language preferences. Tools like Scalr are also used other than controlled ones like RightScale.

77. Name the Various Layers in Cloud Architecture.

Ans:

CC – Cluster Controller

• SC – Storage Controller
• CLC – Cloud Controller
• Walrus
• NIC – Node Controller

78. What is the difference between scalability and flexibility?

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The capability to enhance the performance to complete the tasks in hand with the available resources is known as Scalability, whereas the capability of the system to work in its full capacity is known as flexibility. Amazon Web Services can scale its services as and when required apart from being flexible by augmenting its supplementary hardware properties.

79. What is the most efficient method of securing data in the cloud?

Ans:

The most efficient way of securing data is to monitor it while moving from one point to another. Leakages in security keys within the number of the storeroom in the cloud should be closely monitored. Segregating the information and encrypting them with one of the approved methods in one of the nest methods to stop pilferage of data. Amazon Web Services provides a very secure form of data management within the cloud.

80. What are the AWS Tools for Reporting and Cost Optimization?

Ans:

AWS provides several reporting and cost-optimization tools:

• Amazon cost Explorer
• AWS trusted advisor
• Amazon Cloudwatch
• AWS budget
• AWS cloudTrail
• Amazon S3 analytics
• Lastly, AWS cost and usage report

81.What is Amazon CloudFront?

Ans:

Amazon CloudFront is a web service that speeds up distribution of your static and dynamic web content, such as .html, .css, .js, and image files, to users. It delivers your content through a worldwide network of data centers called edge locations. When a user requests content that you’re serving with CloudFront, the request is routed to the edge location that provides the lowest latency, so that content is delivered with the best possible performance.

82. What do you mean by Amazon DynamoDB?

Ans:

Amazon DynamoDB is a key-value and document database that delivers single-digit millisecond performance at any scale. It’s a fully managed, multi-region, multi-active, durable database with built-in security, backup and restore, and in-memory caching for internet-scale applications. DynamoDB can handle more than 10 trillion requests per day and can support peaks of more than 20 million requests per second.

83. What is AWS Certificate Manager?

Ans:

AWS Certificate Manager (ACM) handles the complexity of creating, storing, and renewing public and private certificates and keys that protect your AWS websites and applications. ACM certificates can secure singular domain names, multiple specific domain names, wildcard domains, or combinations of these. ACM wildcard certificates can protect an unlimited number of subdomains.

84. What are the benefits of using AWS Control Tower?

Ans:

Firstly, it quickly setup and configure a new AWS environment

• Secondly, it automate ongoing policy management
• Lastly, view policy-level summaries of your AWS environment

85. Various types of Instances?

Ans:

The various types of Instances are general purpose, Computer Optimized, Memory Optimized, Storage Optimized & Accelerated Computing

86. Key-pairs in AWS?

Ans:

They are secure login information for your virtual machines. Use key-pairs to connect to the instances, which contain a public-key and private-key.

87. What are the security best practices for Amazon EC2 ?

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To control access of the AWS resources, use AWS identity and access management.

• Restrict the access by allowing only trusted hosts or networks.
• Review the security rules frequently.
• Open up the permission i.e. ONLY required
• Password based login should be disabled

88. What is T2 instances ?

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They are designed to provide moderate baseline performance and it has the capability to burst the higher performance as required by the workload.

89. By default how many buckets can you create in AWS?

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Up to 100 buckets can be created in each of your AWS accounts by default.

90. What is the difference between Amazon S3 and EC2 is?

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EC2 is a cloud web service used for hosting the application and S3 is a data storage system in which unlimited data can be stored.

91. How can one send a request to Amazon S3?

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Amazon S3 is a REST service & by using the REST API or the AWS SDK wrapper libraries that wrap the underlying Amazon S3 REST API one can send the request.

92. Relationship between an instance and AMI?

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A single AMI is capable of launching multiple types of instances. The hardware of the host computer used for your instances is defined by the instance type. Each instances type has different computer and memory capabilities. After the launch of the instance, it looks like a traditional host and one can interact with it.

93. Define AMI?

Ans:

AMI is Amazon Machine Image. This template provides the information which is required to launch an instance that is the copy of AMI running as a virtual server in the cloud. Instances can be launched from many different AMIs.

94. What is the importance of buffer in Amazon web services?

Ans:

Elastic Load balancer ensures that the incoming traffic is distributed optimally across various AWS. Different components are synchronized by buffer & it also makes them additionally elastic to a burst of load or traffic. The buffer creates an equilibrium which links various apparatus and crafts them. This makes them work at an identical rate to supply more rapid services

95. Comparison between AWS and Openstack?

Ans:

License in AWS is Amazon proprietary and in Openstack it is open source. The operating system in AWS depends on what the cloud administrators provides and in Openstack the OS is whatever AMIs provided by AWS.

96. Define AWS S3?

Ans:

The full form of S3 is Simple Storage Service. Its interface can be used to store and retrieve the data (no limit) at any given time and from anywhere on the web. The payment model of S3 is “pay as you go”.

97. Mention the Main Components of AWS?

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The main components of AWS are Route 53, Simple Email Service, Identity and access management, Simple Storage device or (S3), Elastic Compute Cloud (EC2), Elastic Block Store (EBS), Cloud watch.

98. What is AWS?

Ans:

The full form of AWS is Amazon Web Services. It is a collection of remote computing services and it provides infrastructure services i.e. web services which is called Cloud Computing.

99. What are the macro-objectives of the AWS SysOps Administrator-Associate (SOA?

Ans:

Below three are the main high-level objectives for the certification

• Technical Expertise in Deployment
• Technical Expertise in Management
• Technical Expertise for the Operations in AWS.

100. What is the name of the AWS Sysops certification?

Ans:

This certification is known as AWS Certified SysOps Administrator-Associate (SOA) certification.