Scenario: You're troubleshooting connectivity issues with an AWS Lambda function that's integrated with a VPC. What are some potential reasons for the connectivity issues, and how would you troubleshoot them?

  • Network ACL settings
  • Security group rules
  • Subnet route table configuration
  • VPC peering issues
Connectivity issues with an AWS Lambda function integrated with a VPC could be caused by various factors such as subnet route table configuration, security group rules, network ACL settings, or VPC peering issues. Troubleshooting involves identifying and addressing the specific cause of the connectivity problem.

What is Cross-Account Access in AWS?

  • Creating duplicate resources in different accounts
  • Granting permissions to resources in one AWS account to users or resources in another AWS account
  • Sharing AWS resources within the same account
  • Transferring ownership of resources
Cross-Account Access in AWS involves granting permissions to resources, such as S3 buckets or EC2 instances, in one AWS account to users or resources in another AWS account.

How does Cross-Account Access facilitate collaboration between different AWS accounts?

  • By allowing resources in one AWS account to be securely accessed by users in another AWS account
  • By automatically syncing data between accounts
  • By creating separate instances of resources for each account
  • By limiting access to resources within the same account
Cross-Account Access facilitates collaboration between different AWS accounts by enabling resources, such as Lambda functions or RDS databases, in one account to be securely accessed by users or resources in another account.

What role does IAM play in Cross-Account Access?

  • IAM is only used for authentication within the same AWS account
  • IAM is primarily used for billing purposes
  • IAM is responsible for resource provisioning
  • IAM is used to manage permissions and access policies for users and resources across different AWS accounts
IAM plays a crucial role in Cross-Account Access by allowing administrators to define and manage permissions and access policies for users and resources across different AWS accounts.

When configuring VPC integration for AWS Lambda, you must specify one or more __________ for the function.

  • Route tables
  • Security groups
  • Subnets
  • VPC endpoints
When configuring VPC integration for AWS Lambda, you must specify one or more subnets for the function to use within the Virtual Private Cloud (VPC).

AWS Lambda functions with VPC integration may experience increased __________ due to networking overhead.

  • CPU utilization
  • Latency
  • Memory usage
  • Throughput
AWS Lambda functions with VPC integration may experience increased latency due to networking overhead introduced by routing traffic through the Virtual Private Cloud (VPC).

To reduce cold start times when using VPC integration, consider using __________.

  • API Gateway
  • IAM Roles
  • Provisioned Concurrency
  • Route 53
Provisioned Concurrency is a feature in AWS Lambda that helps reduce cold start times by pre-initializing execution environments, especially useful when integrating with a VPC.

__________ allows you to securely access resources within a VPC from your AWS Lambda functions.

  • NAT Gateways
  • Security Groups
  • VPC Endpoints
  • Virtual Private Gateways
VPC Endpoints allow you to securely access resources within a VPC from your AWS Lambda functions.

When configuring VPC integration for AWS Lambda, you can optionally specify __________ to control outbound internet access.

  • Security Groups
  • Subnet Route Tables
  • VPC Endpoint Policies
  • VPC Peering Connections
Security Groups can be specified when configuring VPC integration for AWS Lambda to control outbound internet access from the functions.

When implementing Cross-Account Access, it's essential to regularly review and audit ________ to ensure security.

  • Billing
  • Connectivity
  • Data
  • Permissions
Regularly reviewing and auditing permissions granted through Cross-Account Access is essential to ensure security and compliance with organizational policies.