CloudFront will deliver the content directly from the origin server. It will also store the content in the cache of the edge location where the content was missing.
Posted Date:- 2021-10-20 05:35:23
Lifecycle hooks are used for autoscaling to put an additional wait time to a scale in or scale out event.
Posted Date:- 2021-10-20 05:33:42
Stopping an EC2 instance means to shut it down as you would normally do on your Personal Computer. This will not delete any volumes attached to the instance and the instance can be started again when needed.
On the other hand, terminating an instance is equivalent to deleting an instance. All the volumes attached to the instance get deleted and it is not possible to restart the instance if needed at a later point in time.
Posted Date:- 2021-10-20 05:30:26
AMI is a template consisting software configuration part. For example Operating systems, applications, application server if you start an instance, a duplicate of the AMI in a row as an attendant in the cloud.
Posted Date:- 2021-10-20 05:29:29
An AWS Availability Zone is a physical location where an Amazon data center is located. On the other hand, an AWS Region is a collection or group of Availability Zones or Data Centers.
This setup helps your services to be more available as you can place your VMs in different data centers within an AWS Region. If one of the data centers fails in a Region, the client requests still get served from the other data centers located in the same Region. This arrangement, thus, helps your service to be available even if a Data Center goes down.
Posted Date:- 2021-10-20 05:28:40
The types of AMI provided by AWS are:
1. Instance store backed
2. EBS backed
Posted Date:- 2021-10-20 05:28:01
CloudTrail is a specially designed tool for logging and tracking API calls. It helps to audit all S3 bucket accesses.
Posted Date:- 2021-10-20 05:27:03
Below stated are the available instances:
* General-purpose
* Storage optimized
* Accelerated computing
* Computer-optimized
* Memory-optimized
Posted Date:- 2021-10-20 05:26:25
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.
Posted Date:- 2021-10-20 05:25:07
There are two types of queues in SQS. They are as follows:
Standard Queues: It is a default queue type. It provides an unlimited number of transactions per second and at least one message delivery option.
FIFO Queues: FIFO queues are designed to ensure that the order of messages is received and sent is strictly preserved as in the exact order that they sent.
Posted Date:- 2021-10-20 05:24:24
DNS and Load Balancer and DNS services come under IAAS-storage cloud service.
Posted Date:- 2021-10-20 05:23:42
Network Address Translation (NAT) allows instances to connect in a private subnet with the internet and other AWS services. NAT prevents the internet to have an initial connection with the instances.
Posted Date:- 2021-10-20 05:22:37
A buffer helps to integrate and synchronize various components in AWS and helps to maintain equilibrium by linking multiple apparatus to deliver quick services at a uniform rate.
Posted Date:- 2021-10-20 05:21:58
Data Lake is a repository to store structured and unstructured data of any scale. They are mainly utilized in Big Data and Data Science since we can store data in its original form without any need to structure the Data and it is possible to perform various analysis to arrive at better solutions.
Posted Date:- 2021-10-20 05:21:18
VPC peering connection is a networking connection that allows connecting one VPC with the other. It enables the route traffic between two VPCs using IPv6 and Ipv4 addresses. Instances within the VPCs behave like as they are in the same network.
Posted Date:- 2021-10-20 05:20:47
Virtual Private Cloud (VPC) allows you to launch AWS resources into the virtual network. It allows users to create and customize network configurations according to users’ business requirements.
Posted Date:- 2021-10-20 05:20:14
CloudFront is a content delivery network offered by AWS, and it speeds up the distribution of dynamic and static web content such as .css, .js, .html, and image files to the users. It delivers the content with low latency and high transfer speed to the users. AWS provides CDN for less price and it suits the best startups.
Posted Date:- 2021-10-20 05:19:43
The Elastic IP address (EIP) is a static Ipv4 address offered by AWS to manage dynamic cloud computing services. Connect your AWS account with EIP so that if you want a static IPv4 address for your instance, you can be associated with the EIP which enables communication with the internet.
Posted Date:- 2021-10-20 05:19:16
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.
Posted Date:- 2021-10-20 05:18:39
Simple Queue Service also known as SQS. It is distributed queuing service which acts as a mediator for two controllers.
Posted Date:- 2021-10-20 05:18:05
Yes, we can establish a peering connection to a VPC in a different region. It is called inter-region VPC peering connection.
Posted Date:- 2021-10-20 05:17:26
Following are the advantages of autoscaling
<> Offers fault tolerance
<> Better availability
<> Better cost management
Posted Date:- 2021-10-20 05:15:58
Snowball is a data transport option. It used source appliances to a large amount of data into and out of AWS. With the help of snowball, you can transfer a massive amount of data from one place to another. It helps you to reduce networking costs.
Posted Date:- 2021-10-20 05:15:12
Edge location is the area where the contents will be cached. So, when a user is trying to accessing any content, the content will automatically be searched in the edge location.
Posted Date:- 2021-10-20 05:14:47
T2 Instances are designed to provide moderate baseline performance and the capability to burst to higher performance as required by the workload.
Posted Date:- 2021-10-20 05:14:17
The default storage class is a Standard frequently accessed.
Posted Date:- 2021-10-20 05:10:59
DNS and Load Balancer are a part of IaaS-Storage Cloud Service.
Posted Date:- 2021-10-20 05:09:50
VPC stands for Virtual Private Cloud. It allows you to customize your networking configuration. VPC is a network that is logically isolated from other networks in the cloud. It allows you to have your private IP Address range, internet gateways, subnets, and security groups.
Posted Date:- 2021-10-20 05:09:08
5 VPC Elastic IP addresses are allowed for each AWS account.
Posted Date:- 2021-10-20 05:08:26
Following are the types of instances:
* General purpose
* Computer Optimized
* Memory Optimized
* Storage Optimized
* Accelerated Computing
Posted Date:- 2021-10-20 05:07:13
The possible connection errors one might encounter while connecting instances are
<> Connection timed out
<> User key not recognized by the server
<> Host key not found, permission denied
<> An unprotected private key file
<> Server refused our key or No supported authentication method available
<> Error using MindTerm on Safari Browser
<> Error using Mac OS X RDP Client
Posted Date:- 2021-10-20 04:52:33
The buffer is used to make the system more robust to manage traffic or load by synchronizing different component. Usually, components receive and process the requests in an unbalanced way. With the help of buffer, the components will be balanced and will work at the same speed to provide faster services.
Posted Date:- 2021-10-20 04:51:40
By configuring the bucket policy to provide public read access to all objects
That is all we have in our section on basic Amazon Web Services interview questions section. Let’s move onto the next section on AWS interview questions for experienced professionals.
Posted Date:- 2021-10-20 04:51:03
Amazon Glacier. AWS Glacier is an extremely low-cost storage service offered by Amazon that is used for data archiving and backup purposes. The longer you store data in Glacier, the lesser it will cost you.
Posted Date:- 2021-10-20 04:50:35
By overriding the terminate option
Posted Date:- 2021-10-20 04:50:13
With private and public subnets in VPC, database servers should ideally launch into private subnets.
Posted Date:- 2021-10-20 04:49:54
T2 instances are designed to provide moderate baseline performance and the capability to burst to higher performance as required by the workload.
Posted Date:- 2021-10-20 04:49:32
Yes, you can vertically scale on Amazon instance. For that
> Spin up a new larger instance than the one you are currently running
> Pause that instance and detach the root webs volume from the server and discard
> Then stop your live instance and detach its root volume
> Note the unique device ID and attach that root volume to your new server
> And start it again
Posted Date:- 2021-10-20 04:49:10
By default, you can create up to 100 buckets in each of your AWS accounts.
Posted Date:- 2021-10-20 04:48:03
Yes, it is possible by using multipart upload utility from AWS. With multipart upload utility, larger files can be uploaded in multiple parts that are uploaded independently. You can also decrease upload time by uploading these parts in parallel. After the upload is done, the parts will be merged into a single object or file to create the original file from which the parts were created.
Posted Date:- 2021-10-20 04:47:37
The Elastic IP address (EIP) is a static Ipv4 address offered by AWS to manage dynamic cloud computing services. Connect your AWS account with EIP so that if you want a static IPv4 address for your instance, you can be associated with the EIP which enables communication with the internet.
Posted Date:- 2021-10-20 04:47:19
An AMI consists of the things which are mentioned below:
>> A template for the instance
>> Launch permissions
>> A block mapping that decides the volume to be attached when it gets launched.
Posted Date:- 2021-10-20 04:47:03
Creating subnets means dividing a large network into smaller ones. These subnets can be created for several reasons. For example, creating and using subnets can help reduce congestion by making sure that the traffic destined for a subnet stays in that subnet. This helps in efficiently routing the traffic coming to the network that reduces the network’s load.
Posted Date:- 2021-10-20 04:45:37
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 components are prone to work in an unstable way of receiving and processing requests. The buffer creates an equilibrium linking various apparatus and crafts them work at an identical rate to supply more rapid services.
Posted Date:- 2021-10-20 04:45:15
From a single AMI, you can launch multiple types of instances. An instance type defines the hardware of the host computer used for your instance. Each instance type provides different computer and memory capabilities. Once you launch an instance, it looks like a traditional host, and we can interact with it as we would with any computer.
Posted Date:- 2021-10-20 04:44:49
AMI stands for Amazon Machine Image. It’s a template that provides the information (an operating system, an application server, and applications) required to launch an instance, which is a copy of the AMI running as a virtual server in the cloud. You can launch instances from as many different AMIs as you need.
Posted Date:- 2021-10-20 04:44:25
S3 stands for Simple Storage Service. You can use S3 interface to store and retrieve any amount of data, at any time and from anywhere on the web. For S3, the payment model is “pay as you go.â€
Posted Date:- 2021-10-20 04:44:13
The key components of AWS are
>> Route 53:A DNS web service.
>> Simple E-mail Service:It allows sending e-mail using RESTFUL API call or via regular SMTP
Identity and Access Management:It provides enhanced security and identity management for your AWS account.
>> Simple Storage Device or (S3):It is a storage device and the most widely used AWS service.
>> Elastic Compute Cloud (EC2): It provides on-demand computing resources for hosting applications. It is handy in case of unpredictable workloads.
>> Elastic Block Store (EBS):It offers persistent storage volumes that attach to EC2 to allow you to persist data past the lifespan of a single Amazon EC2 instance.
>> CloudWatch: To monitor AWS resources, It allows administrators to view and collect key Also, one can set a notification alarm in case of trouble.
Posted Date:- 2021-10-20 04:43:56
An Amazon EC2 uses public key cryptography which is used to encrypt and decrypt the login information. In public key cryptography, the public key is used to encrypt the information while at the receiver's side, a private key is used to decrypt the information. The combination of a public key and the private key is known as key-pairs. Key-pairs allows you to access the instances securely.
Posted Date:- 2021-10-20 04:42:15
AWS stands for Amazon Web Services. It is a service which is provided by the Amazon that uses distributed IT infrastructure to provide different IT resources on demand. It provides different services such as an infrastructure as a service, platform as a service, and software as a service.
Posted Date:- 2021-10-20 04:41:58