Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
49 Cards in this Set
- Front
- Back
|
What’s AWS? |
AWS (Amazon Web Services) is a platform to provide secure cloud services, database storage, offerings to compute power, content delivery, and other services to help business level and develop. |
|
|
What is the importance of buffer in Amazon Web Services? |
An Elastic Load Balancer ensures that the incoming traffic is distributed optimally across various AWS instances. A buffer will synchronize different components and makes the arrangement additionally elastic to a burst of load or traffic. The buffer creates an equilibrium linking various apparatus to work at an identical rate to supply more rapid services. |
|
|
Why do we make subnets? |
Creating subnets means dividing a large network into smaller ones to reduce congestion by making sure that the traffic destined for a subnet stays in that subnet. Routing the traffic coming to the network that reduces the network's load. |
|
|
What is the maximum number of S3 buckets you can create? |
The maximum number of S3 buckets that can be created is 100. |
|
|
When should you use the classic load balancer and the application load balancer? |
The classic load balancer is used for simple load balancing of traffic across multiple EC2 instances. The application load balancing is used for more intelligent load balancing, based on the multi-tier architecture or container-based architecture of the application. It is mostly used when there is a need to route traffic to multiple services. |
|
|
How many total VPCs per account/region and subnets per VPC can you have? |
We can have a total of 5 VPCs for every account/region and 200 subnets for every VPC that you have. |
|
|
Your organization has decided to have all their workload on the public cloud. But, due to certain security concerns, your organization decides to distribute some of the workload on private serVers. You are asked to suggest a cloud architecture for your organization. What will be your suggestion? |
A hybrid cloud. The hybrid cloud architecture is where an organization can use the public cloud for shared resources and the private cloud for its confidential workloads |
|
|
Which one of the storage solutions offered by AWS would you use if you need extremely low pricing and data archiving? |
AWS Glacier is an extremely low-cost storage service that is used for data archiving and backup purposes. The longer you store data in Glacier, the lesser it will cost you. |
|
|
You have connected four instances to ELB. To automatically terminate your unhealthy instances and replace them with new ones, which functionality would you use? |
Auto-scaling groups. |
|
|
The data on the root volumes of store-backed gets deleted by default when they are terminated. If you want to prevent that from happening, which instance would you use? |
EBS-backed instances. EBS-backed instances use EBS volume as their root volume. EBS volume consists of virtual drives that can be backed up and duplicated by snapshots. |
|
|
How will you configure an Amazon S3 bucket to serve static assets for your public web application? |
By configuring the bucket policy to provide public read access to all objects. |
|
|
What is the name of Amazon's Content Delivery Network? |
CloudFront |
|
|
What is the name of Amazon's Content Delivery Network? |
CloudFront |
|
|
Which Amazon solution will you use if you want to accelerate moving petabytes of data in and out of AWS, using storage devices that are designed to be secure for data transfer? |
Amazon Snowball. AWS Snowball is the data transport solution for large amounts of data that need to be moved into and out of AWS using physical storage devices. |
|
|
Your organization is developing a new multi-tier web application in AWS. The organisation requires high availability. This new application comprises complex queries and table joins. Which Amazon service will be the best solution for your organization's requirements? |
DynamoDB will be the right choice here since it is designed to be highly scalable, more than RDS or any other relational database service. |
|
|
You accidently stopped an EC2 instance in a VPC associated Elastic IP. If you start the instance again, what will be the result? |
Elastic IP will be only disassociated from the instance if it's terminated. If it’s stopped and started, there won't be any change to instance and no data will be lost. |
|
|
Your organization has around 50 IAM users. Now, it wants to introduce a new policy that will affect the access permissions of an IAM user. How can it implement this without having to apply the policy at the individual user level? |
It is possible using AWS IAM groups, by adding users in the groups as per their roles and by simply applying the policy to the groups. |
|
|
What would I have to do if I want to access Amazon Simple Storage buckets and use the information for access audits? |
AWS CloudTrail can be used in this case as it is designed for logging and tracking calls, and it has also been made available for storage solutions. |
|
|
28. You have an application running on your Amazon EC2 instance. You want to reduce the load on your instance as soon as the CPU utilization reaches 100 percent. How will you do that? |
It can be done by creating an autoscaling group to deploy more instances when the CPU utilization exceeds 100 percent and distributing traffic among instances by creating a load balancer and registering the Amazon EC2 instances with it. |
|
|
You have created a VPC with private and public subnets. In what kind of subnet would you launch the database servers? |
Database servers should be ideally launched in private subnets. Private subnets are ideal for the backend services and databases of all applications since they are not meant to be accessed by the users of the applications, and private subnets are not routable from the Internet. |
|
|
Your organization has four instances for production and another four for testing. You are asked to set up a group of AM users that can only access the four production instances and not the other four testing instances. How will you achieve this? |
We can achieve this by defining tags on the test and production instances and then adding a condition to the AM policy that allows access to specific tags. |
|
|
What does EC2 mean in AWS? |
Amazon Elastic Compute Cloud (Amazon EC2) provides scalable computing capacity in the Amazon Web Services (AWS) Cloud. Using Amazon EC2 eliminates your need to invest in hardware up front, so you can develop and deploy applications faster. |
|
|
What is S3 bucket? |
A bucket is a container for objects stored in Amazon S3. You can store any number of objects in a bucket and can have up to 100 buckets in your account. Every object is contained in a bucket. |
|
|
What are the 4 types of cloud computing and it’s services? |
There are four main types of cloud computing: private clouds, public clouds, hybrid clouds, and multiclouds. There are also three main types of cloud computing services: Infrastructure-as-a-Serv. (laaS), Platforms-as-a-Service (PaaS), Software-as-a-Service (SaaS). |
|
|
What is difference between WAF and firewall? |
WAF protects web applications by targeting Hypertext Transfer Protocol (HTTP) traffic. Helps detect and mitigate web application layer DDoS attacks by inspecting traffic inline. Firewall provides a barrier between external and internal network traffic. |
|
|
Amazon EC2 instance types? |
General purpose instances Compute optimized instances Memory optimized instances Accelerated computing instances Storage optimized instances |
|
|
Amazon EC2 pricing? |
On-Demand Amazon EC2 Savings Plans Reserved Instances Spot Instances Dedicated Hosts
|
|
|
What is serverless computing? |
The term "serverless" means that your code runs on servers, but you do not need to provision or manage these servers. You can focus more on innovating new products and features instead of maintaining servers. |
|
|
Which are serverless services in AWS? |
Compute AWS Lambda is a service to run code without needing to provision or manage servers. AWS Fargate is a serverless compute engine for containers. It works with both Amazon ECS and EKS. Data Store Amazon S3 is an object storage service designed to store and protect any amount of data. DynamoDB is serverless key-value database. Amazon RDS Proxy is a managed database proxy for Amazon Relational Database Service (RDS) that makes applications more scalable and secure. Amazon Aurora Serverless is a MySQL and PostgreSQL-compatible relational database that automatically scales capacity based on your application's needs. Application integration Amazon SQS queuing service enabling you to decouple and scale microservices, distributed systems, and serverless applications. Amazon SNS Amazon API Gateway AWS AppSync Amazon EventBridge AWS Step Functions
|
|
|
Factors to consider when determining a right region. |
Compliance with data governance and legal requirements Proximity to your customers Available services within a Region Pricing |
|
|
What are edge locations? |
An edge location is a site that Amazon CloudFront uses to store cached copies of your content closer to your customers for faster delivery. |
|
|
What is CloudFront? |
It’s a content delivery service. |
|
|
How do you interact with AWS? |
AWS MANAGEMENT CONSOLE AWS COMMAND LINE INTERFACE (CLI) SOFT. DEVELOPMENT KITS (SDKs) |
|
|
How do you provision a resource in AWS? |
1) Log in to the AWS Management Console 2) Write commands 3) Write programs 4) AWS Elastic Beanstalk helps to provision EC2-based environments. You provide code and configuration settings, and Elastic Beanstalk deploys the resources necessary to perform: Adjust capacity, Load balancing, Automatic scaling, Application health monitoring. 5) CloudFormation: you can treat your infrastructure as code. This means that you can build an environment by writing lines of code in JSON or YAML text-based documents called Templates. A declarative format like this allows you to define what vou want to build without specifying the details of exactly how to build it. You just define what you want and CloudFormation worries about the details.
|
|
|
Which action can you perform with AWS Outposts? |
Extend AWS infrastructure and services to your on-premises data Center. center. |
|
|
What is a VPC? |
A networking service that you can use to establish boundaries around your AWS resources. A VPC enables you to provision an isolated section of the AWS Cloud. In this isolated section, you can launch resources in a virtual network that you define. Within a virtual private cloud (VPC), you can organize your resources into subnets (public or private). |
|
|
What are internet gateway for? |
To allow public traffic from the internet to access your VPC, you attach an internet gateway to the VPC. |
|
|
How to connect internet to a VPC that includes only private resources? |
To access private resources in a VPC, you can use a virtual private gateway. The virtual private gateway is the component that allows protected internet traffic to enter into the VPC. Protected internet traffic: virtual private network (VPN) connection that encrypts (or protects) your internet traffic from all the other requests around it. |
|
|
Which service enables you to establish a dedicated private connection between your data center and a VPC? |
AWS Direct Connect |
|
|
What is Amazon Route 53? |
Amazon Route 53 is a DNS web service. It gives developers and businesses a reliable way to route end users to internet applications hosted in AWS. |
|
|
How Amazon Route 53 and Amazon CloudFront deliver content? |
Suppose that Wendy's application is running on several Amazon EC2 instances. These instances are in an Auto Scaling group that attaches to an Application Load Balancer. 1) A customer requests data from the application by going to Wendy's website. 2) Amazon Route 53 uses DNS resolution to identify Wendy.com's corresponding IP address, 192.0.2.0. This information is sent back to the customer. 3) The customer's request is sent to the nearest edge location through Amazon CloudFront. 4) Amazon CloudFront connects to the Application Load Balancer, which sends the incoming packet to an Amazon EC2 instance. |
|
|
What does a DNS resolution do? |
Translating a domain name to an IP address. |
|
|
What is cloud computing? |
On-demand delivery of IT resources and applications through the internet with pay-as-you-go pricing. |
|
|
What is another name for on-premises deployment? |
Private cloud deployment. |
|
|
You want to use an Amazon EC2 instance for a batch processing workload. What would be the best Amazon EC2 instance type to use? |
Compute optimized. |
|
|
What are the contract length options for Amazon EC2 Reserved Instances? |
Reserved Instances require a commitment of either 1 year or 3 years. The 3-year option offers a larger discount. |
|
|
You have a workload that will run for a total of 6 months and can withstand interruptions. What would be the most cost-efficient Amazon EC2 purchasing option? |
Spot Instance |
|
|
Which ones are S3’s storage classes? |
S3 Standard S3 Standard-Infrequent Access (S3 Standard-IA S3 One Zone-Infrequent Access (S3 One Zone-IA) S3 Intelligent-Tiering 53 Glacier S3 Glacier Deep Archive |
|
|
You want to store data that is infrequently accessed but must be immediately available when needed. Which Amazon S3 storage class should you use? |
S3 Standard-IA |
