AWS · Serverless interview questions

1. A.a packaged set of libraries or dependencies shared across multiple Lambda functions
2. B.the added latency when a new execution environment is initialized for a function
3. C.a service that runs code in response to events without provisioning servers
4. D.a queue that preserves message order and guarantees exactly-once processing

Answer + AI explanation with Pro

1. A.Lambda
2. B.Lambda Layer
3. C.Lambda Cold Start
4. D.Lambda Provisioned Concurrency

Answer + AI explanation with Pro

1. A.Lambda — a queue that preserves message order and guarantees exactly-once processing
2. B.Lambda — a service to orchestrate multiple Lambda and AWS service calls as a state machine
3. C.Lambda — a service that runs code in response to events without provisioning servers
4. D.Lambda — Simple Queue Service; a fully managed message queue for decoupling components

Answer + AI explanation with Pro

1. A.a managed service to create, publish, and secure REST, HTTP, and WebSocket APIs
2. B.a packaged set of libraries or dependencies shared across multiple Lambda functions
3. C.the added latency when a new execution environment is initialized for a function
4. D.a serverless event bus that routes events between AWS services and applications

Answer + AI explanation with Pro

1. A.Lambda@Edge
2. B.API Gateway
3. C.SQS FIFO Queue
4. D.Lambda Alias

Answer + AI explanation with Pro

1. A.API Gateway — a named pointer to a specific Lambda function version for stable invocation
2. B.API Gateway — a managed service to create, publish, and secure REST, HTTP, and WebSocket APIs
3. C.API Gateway — a serverless event bus that routes events between AWS services and applications
4. D.API Gateway — a queue that captures messages or events that failed processing for later inspection

Answer + AI explanation with Pro

1. A.the added latency when a new execution environment is initialized for a function
2. B.Simple Queue Service; a fully managed message queue for decoupling components
3. C.a managed service to create, publish, and secure REST, HTTP, and WebSocket APIs
4. D.pre-initialized execution environments kept warm to eliminate cold starts

Answer + AI explanation with Pro

1. A.Lambda Layer
2. B.SQS
3. C.Lambda@Edge
4. D.Lambda Cold Start

Answer + AI explanation with Pro

1. A.SQS — a service that runs code in response to events without provisioning servers
2. B.SQS — a queue that preserves message order and guarantees exactly-once processing
3. C.SQS — the added latency when a new execution environment is initialized for a function
4. D.SQS — Simple Queue Service; a fully managed message queue for decoupling components

Answer + AI explanation with Pro

1. A.Simple Notification Service; a managed pub/sub messaging service for fan-out delivery
2. B.a service that runs code in response to events without provisioning servers
3. C.Simple Queue Service; a fully managed message queue for decoupling components
4. D.a serverless event bus that routes events between AWS services and applications

Answer + AI explanation with Pro

1. A.Lambda Reserved Concurrency
2. B.Lambda Provisioned Concurrency
3. C.SNS
4. D.EventBridge

Answer + AI explanation with Pro

1. A.SNS — Simple Notification Service; a managed pub/sub messaging service for fan-out delivery
2. B.SNS — a service that runs code in response to events without provisioning servers
3. C.SNS — a managed service to create, publish, and secure REST, HTTP, and WebSocket APIs
4. D.SNS — a named pointer to a specific Lambda function version for stable invocation

Answer + AI explanation with Pro

1. A.a named pointer to a specific Lambda function version for stable invocation
2. B.a packaged set of libraries or dependencies shared across multiple Lambda functions
3. C.a serverless event bus that routes events between AWS services and applications
4. D.Simple Notification Service; a managed pub/sub messaging service for fan-out delivery

Answer + AI explanation with Pro

1. A.EventBridge
2. B.SNS
3. C.SQS
4. D.Step Functions

Answer + AI explanation with Pro

1. A.EventBridge — Simple Queue Service; a fully managed message queue for decoupling components
2. B.EventBridge — Lambda functions that run at CloudFront edge locations to customize content delivery
3. C.EventBridge — a serverless event bus that routes events between AWS services and applications
4. D.EventBridge — a service to orchestrate multiple Lambda and AWS service calls as a state machine

Answer + AI explanation with Pro

1. A.Simple Queue Service; a fully managed message queue for decoupling components
2. B.the added latency when a new execution environment is initialized for a function
3. C.a managed service to create, publish, and secure REST, HTTP, and WebSocket APIs
4. D.Lambda functions that run at CloudFront edge locations to customize content delivery

Answer + AI explanation with Pro

1. A.SNS
2. B.Step Functions
3. C.Lambda Cold Start
4. D.Lambda Layer

Answer + AI explanation with Pro

1. A.Lambda Cold Start — a named pointer to a specific Lambda function version for stable invocation
2. B.Lambda Cold Start — the added latency when a new execution environment is initialized for a function
3. C.Lambda Cold Start — a packaged set of libraries or dependencies shared across multiple Lambda functions
4. D.Lambda Cold Start — a service that runs code in response to events without provisioning servers

Answer + AI explanation with Pro

1. A.a queue that preserves message order and guarantees exactly-once processing
2. B.pre-initialized execution environments kept warm to eliminate cold starts
3. C.a serverless event bus that routes events between AWS services and applications
4. D.a service to orchestrate multiple Lambda and AWS service calls as a state machine

Answer + AI explanation with Pro

1. A.Step Functions
2. B.Lambda Reserved Concurrency
3. C.Lambda Layer
4. D.EventBridge

Answer + AI explanation with Pro

1. A.Step Functions — a managed service to create, publish, and secure REST, HTTP, and WebSocket APIs
2. B.Step Functions — a queue that captures messages or events that failed processing for later inspection
3. C.Step Functions — a serverless event bus that routes events between AWS services and applications
4. D.Step Functions — a service to orchestrate multiple Lambda and AWS service calls as a state machine

Answer + AI explanation with Pro

1. A.pre-initialized execution environments kept warm to eliminate cold starts
2. B.a service that runs code in response to events without provisioning servers
3. C.the added latency when a new execution environment is initialized for a function
4. D.a serverless event bus that routes events between AWS services and applications

Answer + AI explanation with Pro

1. A.SNS
2. B.Lambda Provisioned Concurrency
3. C.SQS FIFO Queue
4. D.SQS

Answer + AI explanation with Pro

1. A.Lambda Provisioned Concurrency — Lambda functions that run at CloudFront edge locations to customize content delivery
2. B.Lambda Provisioned Concurrency — a cap on the concurrent executions allotted to a single function
3. C.Lambda Provisioned Concurrency — pre-initialized execution environments kept warm to eliminate cold starts
4. D.Lambda Provisioned Concurrency — Simple Queue Service; a fully managed message queue for decoupling components

Answer + AI explanation with Pro

1. A.creates a new Lambda function from a deployment package or container image
2. B.synchronously or asynchronously calls a Lambda function and captures its output
3. C.sets reserved concurrency limits for a Lambda function
4. D.lists the Lambda functions in the current region

Answer + AI explanation with Pro

1. A.aws sns publish
2. B.aws stepfunctions start-execution
3. C.aws sqs receive-message
4. D.aws lambda invoke

Answer + AI explanation with Pro

1. A.aws lambda invoke — starts a new execution of a Step Functions state machine
2. B.aws lambda invoke — synchronously or asynchronously calls a Lambda function and captures its output
3. C.aws lambda invoke — sets reserved concurrency limits for a Lambda function
4. D.aws lambda invoke — deploys new code to an existing Lambda function

Answer + AI explanation with Pro

1. A.creates a new Lambda function from a deployment package or container image
2. B.deploys new code to an existing Lambda function
3. C.sets reserved concurrency limits for a Lambda function
4. D.sends a message to a specified SQS queue

Answer + AI explanation with Pro

1. A.aws lambda list-functions
2. B.aws sqs receive-message
3. C.aws lambda update-function-code
4. D.aws lambda create-function

Answer + AI explanation with Pro

1. A.aws lambda create-function — starts a new execution of a Step Functions state machine
2. B.aws lambda create-function — creates a new Lambda function from a deployment package or container image
3. C.aws lambda create-function — publishes a message to an SNS topic for fan-out to subscribers
4. D.aws lambda create-function — synchronously or asynchronously calls a Lambda function and captures its output

Answer + AI explanation with Pro