Ques. 1): What is Amazon Elastic Compute Cloud (EC2), and what are its advantages and
disadvantages?
Answer:
EC2 is an AWS service that allows
customers to rent virtual computers on which to run their programmes. With the
help of EC2, it is possible to deploy applications
on a huge scale. Users can use EC2 to access a virtual machine by booting an
AMI (Amazon Machine Language). Amazon refers to the configuration of a virtual
machine using AMI as a 'instance.' With the help of EC2, you may launch, create, and stop a
large number of server instances for your company or organisation. When you use
EC2 for your business or organisation, you will have to pay per second for the
amount of active servers.
EC2 delivers permanent
storage and elastic IP addresses in addition to a variety of virtual operating
systems. Amazon CloudWatch is another popular service among EC2 clients since
it allows them to track resource usage. Amazon CloudWatch may be used to track
the CPU, network, and other resources used by RDS database replicas. EC2's
auto-scaling capability aids in adjusting to changes in traffic. If someone
utilises EC2 for an e-commerce site, for example, it will automatically scale
up as the site's traffic grows.
AWS RedShift Interview Questions
and Answers
AWS VPC Interview Questions and
Answers
AWS AppSync Interview Questions and
Answers
Ques. 2): What exactly is Amazon S3? Elaborate.
Answer:
Simple Storage Service (S3) provides
organisations and IT professionals with scalable object storage capacity. It
was one of the first services offered by Amazon Web Services. Users can store
and retrieve data from remote places using S3's simple web services interface.
S3 has buckets for storing files and data.
As it is a universal
namespace, users establish a bucket in S3 and name it. When a file is
successfully uploaded to the specified S3 bucket, an HTTP 200 code is returned.
To generate the DNS address, each bucket is given a unique name (unique).
You can also download data
from an S3 bucket and make it available to other users. The authentication
mechanism of S3 helps in securing the data from any possible breaches.
AWS Cloud Practitioner Essentials
Questions and Answers
AWS Cloud9 Interview Questions and
Answers
Amazon Athena Interview Questions
and Answers
Ques. 3): Briefly describe the many types of cloud service models.
Answer:
There are three different types of cloud service models:
Infrastructure as a Service
(IaaS) allows consumers to use the internet to access virtual computing
resources. IaaS allows a service provider to host a server, storage, hardware,
and other resources on behalf of consumers. IaaS platforms provide a lot of
scalability and can adjust to the workload. Users' activities such as system
maintenance, backup, and resilience are also managed by IaaS providers.
Platform as a Service
(PaaS) enables service providers to supply software and hardware to their
customers. PaaS is mostly utilised in the application development process, and
it allows users to obtain applications from service providers via the internet.
PaaS allows users to develop and test applications without having to invest in
in-house software or hardware.
Software as a Service
(SaaS) is a popular software delivery model supplied by service providers. SaaS
can be used to supply on-demand computer applications to users/customers. Patch
administration and management are simplified with the SaaS paradigm.
AWS EC2 Interview Questions and
Answers
AWS Cloud Security Interview
Questions and Answers
AWS Fargate Interview Questions and
Answers
Ques. 4): What are the advantages and disadvantages of EC2's
auto-scaling feature?
Answer:
AWS EC2's auto-scaling
capability dynamically scales up computing capacity based on demand. It aids in
the continuous operation of business processes. In only a few minutes, Auto
Scaling can help you scale various resources in AWS. Aside from EC2, you can
opt to scale other AWS services and tools automatically as needed. The
following are the advantages of the EC2 auto-scaling feature:
AWS EC2's auto-scaling
capability is simple to set up. Under the same interface, you can see the
utilisation levels of numerous resources. To view the utilisation level of numerous
resources, you don't have to switch between consoles. Auto-scaling is a unique
feature that automates the scaling process. It also tracks how different
resources react to changes and scales them automatically. The auto-scaling
capability not only adds processing capacity, but it also removes/reduces it as
needed.
The auto-scaling feature
optimises application performance even when the workload is unpredictable.
Auto-scaling ensures that an application's optimal performance level is
maintained.
AWS Lambda Interview Questions and
Answers
AWS SageMaker Interview Questions
and Answers
AWS DynamoDB Interview Questions
and Answers
Ques. 5): Assume your
company uses AWS to host an application that allows users to display graphics
and conduct general calculation activities. The management team at your company
has advised that incoming traffic on the hosted application be routed through
an application load balancer. Explain why using an application load balancer to
route incoming traffic is a smart idea?
Answer:
This is an example of an
AWS interview question based on a scenario. A candidate should not only have
theoretical understanding, but also understand how various AWS services are
used in the market and how they work.
User requests for image
rendering can be directed only to image rendering servers, while requests for
general computing can be routed to computing servers. This will aid in
balancing the load on different servers and gaining access to them as
necessary.
AWS Simple Storage Service (S3)
Interview Questions and Answers
AWS Elastic Block Store (EBS)
Interview Questions and Answers
AWS Amplify Interview Questions and
Answers
Ques. 6): What is AWS VPC and how does it work?
Answer:
Amazon VPC (Virtual Private Cloud) allows users to deploy
AWS resources into a private virtual network. Because the virtual network is
defined by the user, the user can manage different features of the virtual
network, such as subnet formation, IP address, and so on.
Firms can create a virtual
network within their business and use all of AWS's services for it. VPC also
allows users to establish a routing table for their virtual network. The
direction of incoming traffic is defined by a routing table, which is a set of
rules.
The internet gateway
provided by AWS VPC can also be used to establish connection between your
virtual network and the internet. Amazon's VPC can be accessed through a
variety of interfaces, including the AWS management panel, AWS CLI (Command
Line Interface), AWS SDKs, and Query API. Users can pay for extra VPC
components like NAT gateways, traffic mirroring, and private links if they need
them.
AWS Cloudwatch interview Questions
and Answers
AWS Secrets Manager Interview
Questions and Answers
AWS Django Interview Questions and
Answers
Ques. 7): Your company
wants to link its data centre to Amazon's cloud environment to improve
accessibility and performance. Which course of action would you recommend in
the above scenario?
Answer:
If a candidate is looking
for a position as a data scientist or engineer, AWS data engineer interview
questions can be asked. With the help of VPC, my company's data centre can be
connected to the Amazon cloud environment (Virtual Private Cloud). I would
recommend that my company create a virtual private network (VPC) and then
connect it to the data centre. My company can then use VPC to launch AWS
resources in the virtual private network. A virtual private network will
connect the firm's data centre to the AWS global network in a secure manner.
Adding cloud services to our organisation will enable us to complete more work
in less time while reducing costs over time.
I would also recommend
making numerous backups of the company's data before successfully shifting it
to the cloud. AWS provides cost-effective backup services, with the option to
automate backups at a predetermined period.
AWS Cloud Support Engineer
Interview Question and Answers
AWS Glue Interview Questions and
Answers
AWS Aurora Interview Questions and
Answers
Ques. 8): What do you know about AWS's NAT gateways?
Answer:
AWS' NAT (Network Address
Translation) service aids in the connection of an EC2 instance to the internet.
The NAT-enabled EC2 instance should be in a private subnet. Not only can NAT
help connect an EC2 instance to other AWS services, but it can also help
connect an EC2 instance to the internet.
Because the EC2 instance is
in a private subnet, connecting to the internet through any other method would
make it public. While establishing a connection between the EC2 instance and
the internet, NAT assists in maintaining the private subnet. For creating a
connection between EC2 instances and internet/AWS services, users can deploy
NAT gateways or NAT instances.
NAT instances are single
EC2 instances, while NAT gateways can be used across various availability
zones. If you are creating a NAT instance, it will support a fixed amount of
traffic decided by the instance’s size.
AWS Solution Architect Interview
Questions and Answers
AWS CloudFormation Interview
Questions and Answers
AWS GuardDuty Questions and Answers
Ques. 9): What are your thoughts on Amazon Redshift?
Answer:
Amazon’s RedShift data warehouse
service is a cloud-based data warehouse. In comparison to other cloud data
warehouses, it is quick and scalable. In comparison to other online data
warehouses, Redshift gives ten times the performance and speed. It makes use of
cutting-edge technology like as machine learning and columnar storage to
justify its high stability and performance. AWS Redshift can scale to petabytes
and terabytes of data.
Redshift's analytics
processing system is OLAP, and it has two nodes for data/information storage.
It provides fast performance during AWS activities in the cloud because to its
advanced compression and parallel processing. One can easily add new nodes in
the warehouse using AWS Redshift. Developers can answer a query faster and can
also solve complex problems using Redshift.
AWS DevOps Cloud Interview
Questions and Answers
AWS Control Tower Interview
Questions and Answers
AWS Lake Formation Interview
Questions and Answers
Ques. 10): What is the difference between horizontal and vertical
scaling in AWS?
Answer:
This is one of the AWS basic
interview questions that a candidate will be asked. It's also one of the most
common AWS fresher interview questions. Continue reading to learn the answer to
this Amazon Web Services (AWS) interview question.
Vertical scaling occurs
when RDS/EC2 servers change the instance size for scalability purposes. In
vertical scaling, a higher instance size is used for scaling up, whereas a
lower instance size is chosen for scaling down. Vertical scaling in AWS allows
you to change the size of the instance on the fly.
In contrast to vertical
scaling, horizontal scaling changes the size of an instance based on the
requirements. The number of nodes/instances in a system is changed without
altering their size via horizontal scaling. The horizontal auto-scaling is
based on the number of connections between an instance and the integrated ELB
(Elastic Load Balancer).
AWS(Amazon Web Services) Interview
Questions and Answers
AWS Data Pipeline Interview Questions
and Answers
Amazon CloudSearch Interview
Questions and Answers
Ques. 11): What are your thoughts on AWS CloudTrail?
Answer:
AWS CloudTrail is a tool
that allows users to audit their AWS accounts. It also aids in maintaining AWS
account compliance and control. CloudTrail begins operating as soon as an AWS
account is activated, recording every AWS activity as an event. The CloudTrail
console can be used at any time to view recent events and actions. The
CloudTrail records all of a user's or role's efforts. The CloudTrail also keeps
track of the actions made by various AWS services.
You'll have more visibility
into your AWS account and the actions linked with it using CloudTrail. In any
organization's AWS infrastructure, you can quickly get to know any particular
activity and gain control over the AWS infrastructure.
AWS Database Interview Questions
and Answers
AWS Transit Gateway Interview
Questions and Answers
Amazon Detective Interview
Questions and Answers
Ques. 12): Your company has
been using AWS services for the past year. You are a senior developer at your
company, and you have been tasked with calculating the cost of AWS services for
your company. How will you assess the cost of AWS services to guarantee that
you are not overpaying for them?
In AWS interview questions,
cost management might be a significant issue to highlight. This is also an
example of a scenario-based interview question from AWS.
I'll use the 'Top Services
Table,' which can be found in AWS' cost management tool. It will tell me about
our company's top five services and how much money we spend on them. I will
also take the aid of cost explorer services offered by AWS that will let me
analyze the last 13 months’ usage and associated costs.
One can use the cost
allocation tags for identifying the AWS resource that has cost more than other
services in any particular month.
AWS ActiveMQ Interview Questions
and Answers
Amazon EMR Interview Questions and
Answers
Amazon OpenSearch Interview
Questions and Answers
Ques. 13): Your company has
an AWS-based application, and the management intends to add email functionality
to it. As a member of your company's management team, how will you tackle this
situation?
Answer:
AWS-based applications work
well with Amazon's numerous services for a wide range of use cases. Other
Amazon services that work well with AWS should be familiarised with because AWS
interview questions may be based on them.
For integrating email
capabilities with our AWS-based application, I recommend using Amazon SES
(Simple Email Service). SES may assist us with a variety of mail forwarding
services, including mass mailing, transactional mailing, marketing mailing, and
so on. SES is a cost-effective solution for integrating email functionality
within multiple applications. The scalable SES service is highly secure and can
help my firm send mails globally.
AWS FinSpace Interview Questions
and Answers
AWS MSK Interview Questions and
Answers
AWS EventBridge Interview Questions
and Answers
Ques. 14): What are your
thoughts on Amazon CloudWatch? Briefly describe its advantages.
Answer:
Amazon Cloudwatch is
a tool that allows you to keep track of how AWS services and resources are
being used in real time. CloudWatch employs a number of metrics to assist
understand how AWS resources and services are being utilised. The metrics
connected to customised AWS apps can also be viewed via CloudWatch, as the
CloudWatch interface is similarly customisable. CloudWatch by default displays
a number of metrics related to the AWS services being used. CloudWatch allows
users to modify and select a set of metrics to be displayed.
CloudWatch services can be
accessed through a variety of methods, including the CloudWatch console, AWS
CLI, CloudWatch API, and AWS SDKs. We may use CloudWatch to monitor the
operational health of AWS services in addition to resource use.
AWS Simple Notification Service
(SNS) Interview Questions and Answers
AWS QuickSight Interview Questions
and Answers
AWS SQS Interview Questions and
Answers
Ques. 15): A key was
produced from the firm headquarters in Asia to encrypt AWS data in the US area.
The key was also expanded to include multiple users and a backup AWS account.
However, the key was not mentioned while encrypting an asset in S3 in the
United States. What is the issue that officials in the United States are unable
to list the key?
Answer:
This is an example of a
question from an AWS fresher interview. The candidates' industry-oriented
approach is defined through scenario-based AWS interview questions.
The data that has to be
encrypted on AWS should be stored in the same region as the key. The data is
encrypted in the given case in the United States. But the key was created in
the Asia region. It doesn’t matter if you link an external AWS account in some
other region while the data encryption is to be done in some other region.
AWS AppFlow Interview Questions and
Answers
AWS QLDB Interview Questions and
Answers
AWS STEP Functions Interview
Questions and Answers
Ques. 16): Tell us about CloudFront CDN and what you know about
it.
Answer:
CloudFront CDN (Computer
Delivery Network) is a collection of dispersed servers that provide web content
such as websites and other types of files. CloudFront CDN delivers content
based on the user's geographic location, the origin of the webpage, and the
content delivery server. All of the files that will be distributed by the CDN
must have a declared origin. An S3 bucket, an AWS instance, or an elastic load
balancer can all be used as CDN origins.
CloudFront CDN offers two
forms of distribution: web distribution and RTMP. For websites, web
distribution is employed, whereas for media streaming, RTMP is used. There are
around 50 edge locations distributed in various parts of the world. Edge
locations are sites where the web content is cached during the delivery
process.
Amazon Managed Blockchain Questions
and Answers
AWS Message Queue(MQ) Interview
Questions and Answers
AWS Serverless Application
Model(SAM) Interview Questions and Answers
Ques. 17): What does AWS' Simple Notification Service entail?
Answer:
The AWS Simple Notification Service (SNS) allows you to
deliver messages from one application to another. It's a low-cost solution that
allows users to publish messages from any application and have them forwarded
to other applications. SNS may also send push alerts to a variety of mobile
devices, including iPhones, Android phones, and Windows phones. AWS SNS can
also be used to deliver an email or SMS to an HTTP endpoint.
The best feature of SNS is
the ability to group different sorts of endpoints. SNS also allows you to group
several sorts of endpoints into one topic. SNS, for example, can be used to
group Apple and Android recipients and send messages to all of them. SNS stores
the messages already published in various availability zones to prevent any
type of data loss.
AWS X-Ray Interview Questions and
Answers
AWS Wavelength Interview Questions
and Answers
AWS Outposts Interview Questions
and Answers
Ques. 18): Every 10
minutes, your firm's application is responsible for retrieving data from your
subscribers'/users' mobile devices. DynamoDB is used to store the data that was
retrieved. For each user, the data is retrieved and stored in S3. After the
data has been extracted, the programme assists the user with data visualisation.
As a senior architect at your firm, you've been tasked with optimising the
backend architecture in order to reduce costs. What suggestions do you have?
Answer:
AWS interview questions can
vary depending on the job role being applied for. This is an example of a
question asked during an AWS architect interview.
To cache the data saved in
DynamoDB, I propose utilising Amazon Elasticache. Elasticache reduces the
provisioned read throughput without compromising the system's performance.
Using Elasticache will also help our firm slash the cost as it is cheaper than
any other provisioned IO.
AWS Lightsail Questions and Answers
AWS Keyspaces Interview Questions
and Answers
AWS ElastiCache Interview Questions
and Answers
Ques. 19): What are your thoughts on Amazon's S3 transfer
acceleration service?
Answer:
Uploads to AWS Simple Storage Service (S3) are
accelerated using S3 transfer acceleration. S3 transfer acceleration transfers
the file to the nearest edge location rather than straight to an S3 bucket. S3
transfer acceleration uses a unique URL to upload the file to the closest edge
location and then transfer it to the needed S3 bucket.
S3 transfer acceleration
uses the CloudFront edge network to speed up uploads while also optimising the
transfer process. The file will be automatically sent to the S3 bucket from the
edge point where it was uploaded in less time.
AWS ECR Interview Questions and
Answers
AWS DocumentDB Interview Questions
and Answers
AWS EC2 Auto Scaling Interview
Questions and Answers
Ques. 20): Describe some of
the benefits of using AWS RDS.
Because AWS RDS is one of
the most commonly used database services in the world, AWS interview questions
are likely to revolve around it. Continue reading to learn more about AWS
interview questions and answers.
The following are some of
the advantages of using AWS RDS:
- You may control/tweak various database services such as CPU, storage, and others independently while utilising AWS RDS.
- AWS RDS allows you to set up automatic backups and keep your database servers up to date with the newest configuration.
- In addition, AWS RDS produces a backup instance that may be used in the event of a failover, preventing data loss.
- Create RDS read replicas from the source database to distribute the read traffic.
AWS Compute Optimizer Interview
Questions and Answers
AWS CodeStar Interview Questions
and Answers
AWS CloudShell Interview Questions
and Answers
<<Top AWS Cloud Interview
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