CompTIA Network+ Practice Test

What is an example of a situation that could cause a bandwidth DoS?

1. Downloading large files over a limited bandwidth connection

2. Running multiple applications on a server

3. Using strong encryption on all data

4. Implementing stringent network access controls

The correct answer is: Downloading large files over a limited bandwidth connection

Downloading large files over a limited bandwidth connection can result in a bandwidth Denial of Service (DoS) situation because it can saturate the available bandwidth. In a bandwidth-limited connection, the available data transfer capacity is restricted, and if one user consumes a substantial portion of that capacity by downloading large files, it leaves minimal bandwidth available for other users or applications. This may lead to a significant slowdown in the network or even render it unusable for others, effectively denying them access to network resources or services. In contrast, running multiple applications on a server, while it may use more resources, doesn't inherently create a saturation of bandwidth unless those applications are also performing high-volume data transfers. Using strong encryption on data enhances security but does not impact bandwidth directly; it ensures that data is transmitted securely, regardless of the bandwidth available. Implementing stringent network access controls focuses on security and managing who can access the network, rather than impacting the amount of bandwidth available.