Скачать или смотреть Scenario 1: Network Connectivity Issue

Scenario 1: Network Connectivity Issue
Question: A user reports that they cannot access a website. They can ping their local gateway but receive a "Request Timed Out" error when pinging an external IP address. What is the most likely cause?
Answer: There may be an issue with DNS resolution or a problem with the default gateway settings preventing external communication.
Reasoning:
1. Since the user can ping their local gateway, their physical connection is likely fine.
2. A "Request Timed Out" error when pinging an external IP suggests either no internet access or a routing issue.
3. Possible causes include:
o Incorrect default gateway settings (leading to no internet access).
o DNS misconfiguration, meaning the user can't resolve domain names to IPs.
4. Suggested troubleshooting steps:
o Check ipconfig /all (Windows) or ifconfig (Linux) to ensure proper gateway and DNS settings.
o Try pinging 8.8.8.8 (Google's public DNS)—if this works but domain names fail, it's a DNS issue.
o Use nslookup example.com to check DNS resolution.