100-140 Question 192
Single answerA user reports that they cannot access a website using its domain name, but they are able to access it by entering its IP address directly. Based on this scenario, which of the following issues is most likely related to DNS?
- A
The user's device has an outdated IP address configuration.
- B
The DNS server responsible for resolving the domain name is down.
- C
The website's hosting server is offline.
- D
The user's browser cache is corrupted.
Show answer and explanation
Correct answer: B
Explanation
DNS (Domain Name System) is responsible for translating domain names into IP addresses. If the DNS server is unavailable, the user's device cannot resolve the domain name into an IP address, resulting in the inability to access the website using its domain name. However, accessing the website via its IP address bypasses DNS, which works in this scenario, confirming the issue is DNS-related.
- A. Incorrect.
An outdated IP address configuration on the user's device would typically result in connectivity issues for all network activities, not just domain name resolution.
- B. Correct.
If the DNS server is down, the user's device will fail to resolve the domain name into an IP address, but accessing the site via its IP address would still work as DNS is bypassed.
- C. Incorrect.
If the website's hosting server is offline, neither the domain name nor the IP address would work for accessing the website.
- D. Incorrect.
A corrupted browser cache may cause issues with displaying a website correctly, but it does not impact DNS resolution.