CompTIA Cloud+ Practice Test

During a disaster recovery switchover, which network services may need modification?

1. RADIUS

2. DNS

3. DHCP

4. All of the above

The correct answer is: All of the above

During a disaster recovery switchover, it is essential to ensure that all critical network services are functioning correctly to facilitate a seamless transition to the backup environment. This can include RADIUS, DNS, and DHCP. RADIUS, which provides authentication, authorization, and accounting for users trying to access network resources, may need modification to connect to the new environment and maintain security protocols. If the Disaster Recovery (DR) site has different address spaces or authentication servers, updates to configurations will be necessary. DNS is critical for resolving domain names to IP addresses. In a DR scenario, the DNS records may need to be modified to point to the new environment’s IP addresses to ensure that users can locate and access the resources correctly. DHCP, which dynamically assigns IP addresses to devices on a network, may also require modifications. The DHCP server needs to be configured to operate within the address range of the backup site’s network and ensure devices receive valid IP addresses. Given that all these services are integral to network functionality and may require changes to ensure proper connectivity and security during a disaster recovery switchover, the correct choice is to modify all of the above services. Each plays a vital role in the network's operation, making it essential to handle each aspect correctly