lambda_flows_integration_flashcardsv2

Question 1

Lambda Functions in Flows

Answer 1

Extend Amazon Connect flow functionality by accessing other AWS services or third-party APIs. Invoked using the Invoke AWS Lambda function block.

Question 2

Invoke AWS Lambda Function Block

Answer 2

Flow block that passes input parameters to Lambda function. Lambda performs operations and returns data back to the flow.

Question 3

Lambda Response Format

Answer 3

Lambda formats information into specific response format and sends back to flow. Data is used to improve experiences in Amazon Connect flows.

Question 4

Lambda with DynamoDB Pattern

Answer 4

Lambda uses input parameters to query DynamoDB table. Formats results and returns to flow for improved customer experience.

Question 5

Retrieving Customer Info Use Case

Answer 5

Lambda checks if caller has existing open case using phone number. Returns name and case details to route to specialist team immediately.

Question 6

JSON Response Validation

Answer 6

Choose JSON option in response validation when expecting structured data from Lambda. Example: firstName

Question 7

Check Contact Attribute Block

Answer 7

Flow block used to branch calls based on attributes returned from Lambda. Routes contacts differently based on Lambda response.

Question 8

Self-Service Payments Use Case

Answer 8

Lambda integrates with external payment system to process transactions. Customers can make payments without relying on business hours.

Question 9

Amazon Lex with Lambda

Answer 9

Lex bot captures payment details and passes to Lambda function. Lambda processes transaction and returns result as contact attribute.

Question 10

Routing Enhancement Use Case

Answer 10

Lambda retrieves customer membership status and preferred language. Routes to appropriate queue with agents who speak customer’s language.

Question 11

STRING_MAP Response Validation

Answer 11

Choose STRING_MAP option for flat object key-value pairs from Lambda. Example: membershipStatus and preferredLanguage attributes.

Question 12

User-Defined Contact Attributes

Answer 12

Data returned from Lambda stored as user-defined contact attributes. Used in Play prompt blocks to read information back to customer.

Question 13

Dynamic Prompts

Answer 13

Prompts that use contact attributes to personalize messages. Example: greeting customer by name and mentioning their case number.

Question 14

Synchronous Lambda Invocation

Answer 14

Flow invokes Lambda function and waits for response before proceeding. Maximum timeout duration is 8 seconds.

Question 15

Lambda Timeout Configuration

Answer 15

Configure timeout value less than 8 seconds in Invoke AWS Lambda function block settings. Function must return results fast to avoid negative contact experience.

Question 16

Event Object

Answer 16

JSON object containing contact context that Amazon Connect sends to Lambda function. Lambda accesses and processes data received in this object.

Question 17

Success vs Error Branch

Answer 17

Success branch runs if Lambda returns well-formatted response. Error branch runs if invocation error occurs or response format is wrong.

Question 18

Details Property

Answer 18

Contains ContactData property and Parameters property. Part of the event object sent to Lambda function.

Question 19

ContactData Property

Answer 19

Includes current contact interaction details like communication channel

Question 20

Parameters Property

Answer 20

Contains function input parameters configured in the Invoke AWS Lambda function block. Passes additional information from flow to Lambda.

Question 21

Function Input Parameters

Answer 21

Additional information passed to Lambda using key-value pairs in block configuration. Example: operation key with checkBalance value.

Question 22

ContactId

Answer 22

Unique identifier for the contact. Included in ContactData as additional information.

Question 23

STRING_MAP Response Format

Answer 23

Lambda returns flat object of key-value pairs. Used for simple responses without nested objects.

Question 24

JSON Response Format

Answer 24

Accommodates complex responses that include nested JSON objects. More flexible than STRING_MAP for structured data.

Question 25

Response Validation Configuration

Answer 25

Experience designer configures Invoke AWS Lambda block to specify expected response type. Developers and designers must collaborate to define format.

Question 26

Lambda Testing in Console

Answer 26

Lambda console provides access to test and simulate Lambda functions for flows. Can test before deploying to production.

Question 27

Common Lambda Use Case

Answer 27

Searching and retrieving contact information from third-party applications like CRM

Question 28

Event Object Structure

Answer 28

Event contains Details property which has ContactData and Parameters. Parameters come from Function input parameters section of block configuration.

Question 29

Environment Variables

Answer 29

Adjust Lambda function behavior without code changes. Store resource identifiers as environment variables for loose coupling and reusability.

Question 30

Lambda Function Reusability

Answer 30

Configure queues or flow identifiers as environment variables. Update variables to use same Lambda function across different environments without changing code.

Question 31

Accessing Environment Variables

Answer 31

Code accesses environment variables at function initialization. Read values like INSTANCE_ID and BUCKET_NAME then use as internal variables.

Question 32

Lambda Alias

Answer 32

Pointer to a specific function version. Flows use alias ARN so flow doesn't need to change when deploying new Lambda version.

Question 33

Lambda Alias Benefits

Answer 33

Reduces risk to customer experience and operational overhead. Decouples Lambda code from flow actions reducing testing and deployment time.

Question 34

Default Lambda Invocation

Answer 34

Amazon Connect invokes most current version of Lambda by default. New functionality immediately available in flows and affects live traffic instantly.

Question 35

Single Version Alias

Answer 35

Alias associated to single version diverts 100 percent of traffic to that version only. Ensures no traffic goes to latest version under development.

Question 36

Weighted Alias Configuration

Answer 36

Gradual or immediate traffic redirection between versions. Example: redirect 30 percent of traffic to new production version for testing.

Question 37

Alias ARN Configuration

Answer 37

Experience designer configures alias ARN in Invoke AWS Lambda function block. Use Set manually setting under Function ARN setting.

Question 38

Lambda Alias Permission

Answer 38

Amazon Connect instance requires explicit permission to invoke Lambda alias. Grant access using AWS CLI command.

Question 39

Same Region Lambda

Answer 39

Lambda function created in same AWS Region as Amazon Connect instance. Cloud admin adds function in AWS Management Console.

Question 40

Different Region Lambda

Answer 40

Lambda function created in different AWS Region from Amazon Connect instance. Used for data residency requirements or multi-region resilience.

Question 41

Cross-Region Permission Requirements

Answer 41

Associate Lambda with instance using AssociateLambdaFunction API. Attach resource-based IAM policy with connect.amazonaws.com as principal.

Question 42

Resource-Based IAM Policy

Answer 42

IAM policy attached to Lambda function for cross-region access. Must specify connect.amazonaws.com as principal and Amazon Connect instance ARN.

Question 43

Lambda Version Management

Answer 43

By using aliases organizations can develop and refine Lambda functions without impacting production workloads. Provides abstraction layer between Connect and specific version.