What issue might arise from multiple DNS entries for the same host name?

When multiple DNS entries exist for the same hostname, it may lead to reduced connection stability. This instability arises because the DNS resolution process may return different IP addresses for the same hostname at different times or in different situations. As a result, a client attempting to connect to a given service might find that it resolves to one IP address on one occasion and to another IP address on a different occasion. This inconsistency can disrupt the client's ability to establish a stable connection to the intended service or resource, leading to connection drops or failures.

In contrast, while increased network traffic could potentially be a consequence of different factors, it is not inherently caused by having multiple DNS entries. Similarly, confusion in data routing can be a concern in some advanced networking configurations but does not directly stem from multiple DNS entries alone. Difficulty in accessing fileshare settings isn't typically related to DNS configurations but may involve permissions or access controls on the server or network. Therefore, the primary issue with multiple DNS entries is the potential for reduced connection stability due to inconsistent resolution.