Practice Test
AWS Comprehend can be used to analyze text and understand its sentiment (True/False )
- True
- False
Answer: True
Explanation: Amazon Comprehend uses natural language processing (NLP) to extract insights about the sentiment of text data.
The AWS Polly service is used for machine learning purposes. (True/False)
- True
- False
Answer: False
Explanation: Amazon Polly is a service that transforms text into lifelike speech.
Which AWS service provides automatic scaling and application health monitoring?
- A. Amazon Comprehend
- B. AWS Polly
- C. AWS Lambda
- D. AWS EC2
Answer: D. AWS EC2
Explanation: Amazon EC2 service provides secure, resizable compute capacity in the cloud with automatic scaling and health monitoring features.
Which AWS service is primarily used for business analytics and visualization?
- A. Amazon QuickSight
- B. Amazon Comprehend
- C. Amazon Polly
- D. AWS RoboMaker
Answer: A. Amazon QuickSight
Explanation: Amazon QuickSight is a fast, cloud-powered business intelligence service by AWS.
Amazon Comprehend allows the extraction of entities, phrases, and sentiment from text (True/False)
- True
- False
Answer: True
Explanation: Amazon Comprehend uses machine learning to find insights and relationships in text, which includes extracting entities, key phrases, and sentiments.
AWS Polly can be used to develop applications that increase user engagement (True/False)
- True
- False
Answer: True
Explanation: By turning text into lifelike speech, Amazon Polly allows the development of applications that can increase engagement and accessibility.
Which AWS service is specifically designed for interactive style applications?
- A. AWS Lambda
- B. AWS Fargate
- C. AWS DynamoDB
- D. Amazon EC2
Answer: C. AWS DynamoDB
Explanation: AWS DynamoDB is a key-value and document database that delivers single-digit millisecond performance at any scale, making it ideal for interactive applications.
Amazon Polly possesses real-time speech-mark synthesis capabilities (True/False)
- True
- False
Answer: True
Explanation: Amazon Polly includes dozens of lifelike voices across a variety of languages, and also supports Speech Marks which provides real-time visual synchronization with the spoken audio.
Which AWS service provides for application data caching?
- A. Amazon ElastiCache
- B. Amazon Comprehend
- C. AWS Polly
- D. AWS Fargate
Answer: A. Amazon ElastiCache
Explanation: Amazon ElastiCache allows you to seamlessly set up, run, and scale popular open-source compatible in-memory data stores in the cloud.
AWS Polly supports the Speech Synthesis Markup Language (True/False)
- True
- False
Answer: True
Explanation: AWS Polly supports SSML tags which allow you to control aspects of speech such as pronunciation, volume, and speed rate.
Interview Questions
What is Amazon Comprehend and how can it be used in business use cases?
Amazon Comprehend is a natural language processing (NLP) service that uses machine learning to find insights and relationships in text. It can be used in multiple business use cases like analyzing customer sentiment from product reviews, social media, and more; extracting key phrases, places, or people, and even understanding the language of the text.
How does Amazon Polly work and in what scenario can it be implemented?
Amazon Polly is a service that turns text into lifelike speech. It uses advanced deep learning technologies to synthesize speech that sounds like a human voice. It can be implemented in a multitude of scenarios such as creating applications that increase engagement and accessibility, enabling narration of texts for learning, etc.
What is the purpose of AWS Lambda in the context of serverless architectures?
AWS Lambda allows you to run your code without provisioning or managing servers. It automatically scales your application in response to the number of triggers with near-zero latency. This is primarily beneficial in serverless architectures where you can build services and applications without having to manage the infrastructure.
How can we use AWS RDS in our application and what databases does it support?
Amazon RDS (Relational Database Service) is a fully managed and scalable database service which takes care of time-consuming administration tasks. It supports six familiar database engines, including Amazon Aurora, PostgreSQL, MySQL, MariaDB, Oracle Database, and SQL Server. RDS can be used in any application where there is a need for a relational database.
How Amazon S3 contributes to the data storage and what use cases it supports?
Amazon S3 is an object storage service offering scalability, data availability, data security and performance. S3 use cases can vary widely, it can be used for backup and recovery, nearline archive, big data analytics, disaster recovery, cloud-native application data, and content distribution.
What is Amazon EC2 and how can it be utilized?
Amazon EC2 provides scalable computing capacity in the Amazon Web Services (AWS) Cloud. It helps in resizing the compute capacity to reduce the time required to obtain and configure a server. Use cases include web & application hosting, data processing tasks, backend servers for mobile and gaming applications, and more.
How is Amazon DynamoDB different from traditional databases?
Amazon DynamoDB is a NoSQL database that supports key-value and document data structures. Unlike traditional databases which are typically monolithic, DynamoDB is a managed, high-performing, it offers predictable low latency at any scale, and is useful in cases such as mobile, web, gaming, IoT, and many other applications.
What is the use case of Amazon CloudFront in AWS architecture?
Amazon CloudFront, a global content delivery network (CDN), securely delivers data, applications, videos to users globally with low latency and high transfer speeds. Use cases include software and application distribution, media content delivery, live and on-demand streaming, API acceleration, and web site content delivery.
How does AWS IAM contribute to the security of AWS services?
AWS IAM stands for Identity and Access Management. It helps manage access to AWS services and resources securely. Management can include creating users, groups, roles, managing their permissions, ensuring the principle of least privilege and meeting stricter compliance demands.
What is Amazon Redshift and what are its typical use cases?
Amazon Redshift is a fully managed, petabyte-scale data warehouse service in the cloud. The primary use cases of Redshift include business intelligence, reporting of massive datasets, data exploration, predictive analytics, enabling efficient data loading, and high-performance complex query executions.
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