Answer: AWS (Amazon Web Services) is a comprehensive cloud computing platform provided by Amazon. It offers many cloud-based services, including computing power, storage options, networking, databases, machine learning, analytics, and more. These services are designed to help businesses scale and innovate more quickly and cost-effectively without significant upfront investments in physical infrastructure.
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● Amazon EC2 (Elastic Compute Cloud) is a service provided by Amazon Web Services (AWS) that allows you to rent virtual servers in the cloud. These virtual servers, called "instances," can run applications, host websites, process data, and more
● Think of EC2 as a flexible, on-demand computer that you can access over the Internet:
● You can choose this computer's size, power, and capacity based on your needs.
● You only pay for the time you use the computer.
● You can quickly add more computers (scale up) or remove them (scale down) as needed.
● Imagine you need a powerful computer to run a specific application but don’t want to buy one. With EC2, you can "rent" a computer from Amazon, use it for as long as you need, and then stop paying when you're done.
Also Read: AWS Cloud Certification
Answer: S3 (Simple Storage Service) is an object storage service that offers scalable storage for data backup, archiving, and analytics. It is designed for durability, availability, and scalability.
Answer: VPC (Virtual Private Cloud) is a virtual network dedicated to an AWS account. It allows users to launch AWS resources into a virtual network that they define.
Answer: IAM (Identity and Access Management) is a service that enables you to securely manage access to AWS services and resources. It allows you to create and manage users, groups, and roles to control who can access your AWS resources.
Also Read: Video Tutorial on AWS
Answer: IAM roles delegate access to AWS resources to entities that are not IAM users, such as applications running on EC2 instances. IAM users, on the other hand, are individual users who can interact with AWS resources using their credentials.
Answer: CloudFormation is a service that allows you to define and provision AWS infrastructure as code using templates. It enables you to create and manage a collection of related AWS resources, provisioning and updating them orderly and predictable.
Answer: S3 is an object storage service suitable for storing and retrieving large amounts of data, while EBS is a block storage service designed for use with EC2 instances, providing persistent block-level storage volumes.
Answer: Public subnets route traffic to an internet gateway, allowing instances in the subnet to communicate with the Internet, while private subnets do not have direct access to the Internet and are used for instances that should not be publicly accessible.
Also Read: AWS Exam Dumps
Answer: Access to EC2 instances can be secured using IAM roles, security groups, and network ACLs. IAM roles can be used to control access to AWS resources, security groups act as virtual firewalls to control traffic to and from instances, and network ACLs control traffic at the subnet level.
Answer: An Auto-Scaling group is a collection of EC2 instances managed as a logical grouping for automatic scaling. Auto-scaling groups automatically adjust the number of instances in response to changing demand.
Answer: CloudWatch is a service that provides real-time monitoring and logging of AWS resources. It can be used to monitor metrics, set alarms, and automatically respond to changes in AWS resources.
Answer: Horizontal scaling involves adding more instances to distribute the load across multiple machines, while vertical scaling involves increasing the capacity of a single machine, such as adding more CPU, memory, or storage to handle increased load.
Answer: AWS Lambda is a serverless computing service that allows you to run code without provisioning or managing servers. It automatically scales and manages the underlying infrastructure required to run your code in response to events.
Answer: Amazon RDS (Relational Database Service) is a managed relational database service that supports multiple database engines, while Amazon DynamoDB is a fully managed NoSQL database service.
Answer: The AWS Shared Responsibility Model defines the division of responsibilities between AWS and the customer for security and compliance. AWS is responsible for the protection of the cloud infrastructure, while the customer is responsible for securing their data and applications in the cloud.
Answer: The AWS Well-Architected Framework is a set of best practices for designing and operating secure, resilient, and efficient cloud infrastructure. It guides architecture design principles across five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization.
Answer: To encrypt a volume or a snapshot, you need an encryption key. Encryption keys are managed by AWS Key Management Service (KMS). When encrypting the EBS volume, one can use an AWS Managed Key (Default key) or Customer Managed Key (CMK)
Answer: AWS CloudTrail is a service that records actions taken by a user, role, or AWS service in your AWS account. It enables governance, compliance, operational auditing, and risk auditing of your AWS account.
Answer: An AWS CloudFormation stack is a collection of AWS resources created and managed as a single unit. It allows you to manage related resources together, enabling you to create, update, and delete them in a predictable and repeatable way.
Answer: Amazon VPC Peering is a networking connection between two VPCs that enables you to route traffic between them using private IP addresses.
Answer: AWS Direct Connect is a network service that provides a dedicated network connection between your on-premises data center and AWS. It allows you to bypass the public internet and establish a private, dedicated connection to AWS.
Answer: AWS CloudFront is a content delivery network (CDN) service that delivers data, videos, applications, and APIs to users globally with low latency and high transfer speeds.
Answer: AWS Key Management Service (KMS) is a managed service that allows you to create and control the encryption keys used to encrypt your data.
Answer: AWS reserves 1st Four IPs and the Last IP in each. For example, Say 10.0.0.0/24 10.0.0.0 Network ID, 10.0.0.1 VPC router, 10.0.0.2 DNS Related, 10.0.0.3 Future Use, 10.0.0.255 Broadcast
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Answer: Amazon S3 Glacier is a low-cost storage service for long-term data archiving and backup.
Answer: A security group is a virtual firewall. If you associate a security group with an EC2 instance, it controls the instance's inbound and outbound traffic.
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Answer: NAT instance allows private subnet EC2 instance to go to the internet
Answer: Savings Plans are a flexible pricing model that offers lower prices on EC2 Usage (1 or 3 years). Savings Plans automatically apply to any applicable compute usage across regions, regardless of size, tenancy, and OS.
Answer: Amazon Redshift is a fully managed data warehouse service that allows you to run complex queries on large datasets using SQL.
Answer: Amazon Kinesis is a platform for streaming data on AWS, offering capabilities to collect, process, and analyze real-time streaming data.
Answer: AWS Directory Service is a managed service that allows you to connect your AWS resources to an existing on-premises Microsoft Active Directory or to set up a new, standalone directory in the cloud.
Answer: AWS Spot Instances allow customers to use computer capacity without upfront commitments at prices cheaper (80-90%) than on-demand instance pricing
Answer: EBS Snapshots are point-in-time Images/copies of your EBS volume
Answer: SNS is a fast, flexible, fully managed push notification service. Messages published to SNS topics will be delivered to the subscribers immediately (endpoint or clients)
Answer: A Relational Database is a data structure that allows you to link information from tables or different types of tables. It Normalizes data into Structures, Which means it requires a schema that strictly defines tables, columns, indexes, and relations between tables
Answer: Amazon DynamoDB is a fast and flexible NoSQL database service for any applications that need consistent, single-digit millisecond latency at any scale
Answer: Amazon Route 53 is a highly available and scalable Domain Name System (DNS) web service
Answer: A NAT Gateway (Network Address Translation Gateway) is a service typically used in AWS cloud environments to enable EC2 instances in a private subnet to connect to the Internet while preventing inbound connections from the Internet to those EC2 instances.
Answer: An AWS Dedicated Host is a physical server entirely dedicated to you and provided by Amazon Web Services (AWS). It allows you to run your Amazon EC2 instances on a server not shared with other customers, providing more control over how you use and manage your server resources.
Answer: An Elastic IP (EIP) in AWS is a static, public IPv4 address that you can allocate to your AWS account and use for communication over the internet. It is designed to provide a persistent, static IP address you can associate with your AWS resources, such as EC2 instances, for reliable internet communication.
Answer: EC2 Termination Protection is an AWS feature that prevents an EC2 instance from being accidentally terminated. When termination protection is enabled for an EC2 instance, any attempts to terminate the instance (such as through the AWS Management Console, CLI, or API) will fail unless the termination protection is first disabled.
Answer: A Cluster Placement Group in AWS is a logical grouping of EC2 instances within a single Availability Zone (AZ), enabling high-bandwidth, low-latency networking between those instances. This placement strategy optimizes network performance for applications that require high throughput and fast communication between instances.
Answer: Spread Placement Group is a logical grouping of instances placed on distinct, underlying hardware to reduce the risk of simultaneous failures. This placement strategy is designed to spread instances across multiple physical hardware to ensure that a failure of one hardware component (such as a server rack) does not affect all cases in the group.
Answer: An Elastic Load Balancer (ELB) in AWS is a fully managed service that automatically distributes incoming application or network traffic across multiple targets, such as Amazon EC2 instances, containers, IP addresses, or Lambda functions, across multiple Availability Zones. It helps ensure high availability, fault tolerance, and scalability for your applications by balancing traffic across healthy instances and automatically scaling as traffic demands change.
Answer: Auto Scaling in AWS is a service that automatically adjusts the number of EC2 instances or other AWS resources in your application based on predefined conditions, ensuring your application has the right amount of resources to handle current demand. This helps maintain application availability and optimizes costs by scaling resources up or down as needed.
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I have done AWS cloud course from Attari classes , where Maqsood sir have a awsome teaching skills which will really help s us to improve the IT skills and clear the every concept. And Upar level management (classes Staf) is also helpful. Please join Attari class for any IT course to improve your skills.
This was the second time i have joined Attari classes for AWS online training, first time it was VMware Professional classes which was in the classroom face to face with awesome trainer Mr Maqsood Sir...the way he thought us is very unique and very interactive trainer ever I had seen. He clear every concept with best example which students can easily understand and we can learn and understand technology in simpler function ... Thank you sir for your great contribution as a trainer, as a mentor...it's really help me to update my knowledge and IT skills. And also thanks to all Attari class Management to give us access to LMS so that we can repeat recorded lecture any time. Thank you ones agin to Maqsood Sir for their efforts .
I have joine Attari classes for the second time. First time it was classroom based training for VMware and now online course for AWS. I would say the quality of this classes is one of the best in terms of sharing the practical approach and explaining the theory. This concept is very less. If a person wants to learn VMware and AWS along with Practicals, then I would recommend him or her to join Attari Classes and bring a turning point in his career. Each and every concept will be thought at Attari Classes. Thank You Maqsood Sir.
Maqsood sir, is best trainer and his speciality is providing training in Aws cloud computing and other professional trainings. His teaching skill set is very very professional. His way of teaching is interactive, Sporting and command over the subject is outstanding. Solves doubt and difficulty in macro level. Best part of his training is balanced between theory and practical based in real world scenario. So every one gets benefitted and aware about production scenarios. I ever saw such a professional, interactive virtual classroom training center in my 15years professional career. Beauty about training is "ATTARI classes" also provide LMS(learning management system) facility with course , so students can refer any topics at any given time . I would like to thank Maqsood sir, for making me a part of the training. I would recommend others also who want to choose cloud computing as professional career. My Best wishes to ATTARI Classes.
I have attended AWS Solution Architect course Online, maqsood sir's unique style of teaching made the session enjoyable. Maqsood sir clears all your doubts until you understand the concept by giving real life exampls. LMS Learnig portal is very useful to revise the concepts, i have recommended Attari classes to others. Thank you Maqsood sir for wonderful session
Thank you from the bottom of my heart to Attari classes & team. I had attended “ONLINE AWS TRAINING” from Maqsood Sir & “ONLINE AZURE TRAINING” from Zameer Sir of Attari classes & my experience of both training was awesome. Both the trainers teaches syllabus very dedicatedly, they ensure each & everyone understand topic. They are masters in topics. I appreciate the greatest quality of both trainer which is 'patience' & 'calmness' which I never seen in any trainers during my 20 yrs. of IT profession. ' 'God bless you guys” for doing such fantastic job.
This is my first time to appeared for online classroom training but it feel I am in classroom of Attari Classes. It was a good experience for learning AWS at Attari Classes. Specially Maqsood Sir is amazing & knowledgeable trainer who give personal attention to every students to clear their doubts. They will teach you from basic to advanced levels with very understandable examples. Also LMS is simply wonderful concept of Attari Classes if anybody missed any important lecture will learn from LMS.
If you want to be more accurate and professional in your IT Journey, this is the best place to come. I have attended Online Training of AWS from Attari Classes and I am more clear about the concepts in the cloud. The best thing is even the training is online, the Trainer Maqsood Sir, is very pro-efficient to reach out at each and every participant in the training session to get the all things done PRACTICALLY by every student. If any student fail to do the practical or misunderstood he use to take remote and make him understand the concept. Apart from the session if any concept is not clear then their is Learning Mangement System (LMS) where we can find all recorded lectures. Trainer is available even after the training session on WhatsAap. I give 5 star to Trainer - Mr. Maqsood Sir and Attari Classes
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