What provides network connectivity between resources deployed in two different IBM Cloud VPCs?

IBM Cloud Transit Gateway provides network connectivity between different IBM Cloud Virtual

Private Clouds (VPCs). It allows for secure, scalable, and efficient communication between resources

deployed in separate VPCs, whether they are within the same region or across different regions.

How Transit Gateway Works: It acts as a central hub that facilitates the routing of traffic between

multiple VPCs without the need to configure individual VPC peering connections. This simplifies

network management, improves scalability, and enhances security by maintaining a single point of

control.

Benefits of Transit Gateway: This service supports both private and public connectivity options and

allows for routing policies that can be customized according to business needs. It also provides

seamless integration with other IBM Cloud services and third-party networks.

Comparison of Other Options:

Domain Name System (A): Not used for network connectivity between VPCs.

Direct Link (B): Used for dedicated, high-speed connections from on-premises to IBM Cloud but not

between VPCs.

Power Edge Router (D): Not an IBM Cloud service for inter-VPC connectivity.

Reference:

IBM Cloud Transit Gateway Documentation

IBM Cloud Networking Solutions

IBM Cloud Architect Exam Study Guide