Cognizant AWS Interview Questions | Latest Cognizant AWS Interview Questions & Answers. The list of AWS interview questions frequently asked at Cognizant is given below. Both freshers and experienced professionals can use these questions.
Latest Cognizant AWS Interview Questions & Answers
What Search Features are available in Amazon Cloud Search?
Amazon Cloud Search includes some amazing search capabilities such as free text searching, Boolean searching, searching using facets, autocomplete suggestions, and query-time ranking expressions.
Explain different storage classes on the Amazon S3?
Amazon S3 creates three main classes, including…. S3 one zone IA for infrequent accessed data, S3 inteligenet tiering (in monitored mode) and S3 encrypted data
How can you make a request to Amazon S3?
You can send a request to Amazon S3 in many different forms for example: through AWS SDK wrapper libraries which benefits from an Amazon S3 REST API behind it and executes simple programming tasks that could be authenticated/anonymous interaction.
How would you describe the Amazon EC2 service?
By using Amazon EC2, users can quickly launch a web service by scanning the desired AMI, thus configuring their virtual machines with applications subject to their needs.
What are the characteristics of the Amazon EC2 service
Most importantly, the Amazon EC2 service has a closed interoperating interface that provides users with the the ability to deploy enterprise systems and have direct access to processor and memory of the server.
What is an AWS Serverless Application Model (SAM)?
We use AWS Serverless Application Model (AWS SAM), an open-source framework used for building serverless applications. The SAM CLI which has a Lambda-like usage environment helps you quickly build, test, and debug serverless applications. From AWS you can also deploy the serverless applications as well using SAM CLI.
Explain Amazon ElastiCache.
Amazon ElastiCache is one of the top in memory data cache and data store services on the planet. Web applications performance can be improved using an in memory cache which the Service fetches it from the fully managed “in memory” caches.
What is Redshift?
You can write back the result of your query with Redshift it easily makes, Redshift is one of the very interesting AWS services and it stores the data ocean in S3 data lakes. The data is stored in open formats like Apache Parquet, which allows other services such as Sage Maker, EMR and Amazon Athena, to perform additional analytics.
What is the AWS Architecture?
The components of Amazon Web Services include but are not limited to we:
- Analytics.
- Application Services.
- Amazon Cluster.
- Databases.
- Include Implementation and Management.
- Management and Security.
- Networks.
- Storage.
Explain Scalability and Flexibility Concepts
For AWS, Scalability is defined as a change in the size or the number of a resource. While Elasticity tracks the variance of resources with pre defined factors.
Provide a brief explanation about AWS CloudTrail.
AWS Cloud Trail is a monitoring tool for account activities on the AWS infrastructure and allows access to account logs for a certain duration. In this manner it aids in performing governance and risk analysis of a defined Amazon Web Service (AWS) user account.
Elaborate the Role of Amazon Web Services Lambda.
If you want to run and manage applications without the concern of servers, AWS Lambda is the service for you. Basically, it is a serverless application that enables you to deploy them and manage your outreach on AWS without infrastructure concerns.
What are the types of AMI offered by AWS?
AMI along with EBS snapshots, launch control permits and block-layer mapping; hence any number of instance creation and and deregistration is possible. Changing instance type, kernels, RAM disks and user data in AMI is performed on stopping the instance.
What is the name of the AWS service that exists to only redundantly cache data and images?
You can select the option to replicate the data from the on premises outpost to any AWS Region, as long as the Amazon S3 bucket is within that selected Region. But a single AWS region can be spread across multiple availability zones for redundancy and data can be stored across them in a highly redundant manner.
Current features of Amazon CloudFront
AWS Lambda@Edge (which returned, the lasted but not least addition, of the programmable edge functions providing secure secured edge CDN computing capability, among other cloud features added to CloudFront). AWS performance characteristics would make CloudFront features more appropriate for low latency and large scale tasks like HTTP headers setting, URL rewrites and redirects, and cache normalization.
What is Amazon EMR?
Amazon EMR is nothing but a software that allows a developer to write code(hopefully zmhis helps with the job of big data processing and or analysis on any processor or type of processor. This is the entire definition of elastic map reduce.
How does one vertically scale an Amazon instance?
To vertically scale an Amazon instance First of all, it is important to mention that we can vertically scale EC2 instances only by changing their capacity and size. For example an R3 instance can have 488 GB of RAM or up to 128 virtual cores.
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