Google Cloud Professional Cloud Security Engineer Practice Exam

Which Google Cloud service allows for secure routing of external traffic to backend services?

1. Network Load Balancer

2. Cloud Pub/Sub

3. Cloud Functions

4. Cloud Dataflow

The correct answer is: Network Load Balancer

The Network Load Balancer is specifically designed for flexible and efficient routing of external traffic to backend services while ensuring high availability and failover capabilities. It can handle millions of requests per second and can direct traffic based on the geographical location of the incoming requests. This service is ideal for distributing incoming traffic across various backend instances, which can be virtual machine instances, containerized applications, or other services, ensuring optimal performance and resource utilization. Moreover, the Network Load Balancer operates at the transport layer (Layer 4), allowing it to manage TCP and UDP traffic, making it suitable for non-HTTP traffic as well. It also supports static IP addresses, which can be beneficial for maintaining consistent access points for clients. The other options offered do not inherently provide the functionality required for secure routing of external traffic to backend services. For instance, Cloud Pub/Sub is a messaging service that facilitates event-driven architectures and does not route traffic to backend services. Cloud Functions serves as a serverless compute service executing code in response to events but isn't focused on routing external traffic. Cloud Dataflow, designed for data processing and stream analytics, also does not serve as a routing mechanism for external traffic. Therefore, the Network Load Balancer stands out as the appropriate service for the routing task