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← Month 1: Strengthen Networking Fundamentals
Week 4: Network Troubleshooting
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Week test
Score 70% or more to mark this week complete
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Study topics
Tools: ping, traceroute/tracert, ipconfig/ip, nslookup/dig, arp, netstat/ss
tcpdump and Wireshark
Incorrect subnet masks
Duplicate IP addresses
DNS resolution failures
Practical exercise
Resources
Hindi video playlists
Wireshark Training Videos in Hindi
हिंदी
jittu jaiswal
Computer Networking Full Course in Hindi
हिंदी
Shesh Chauhan IT Trainer
Practice in the browser (works on Android tablet)
A-Packets (open .pcap files in the browser)
A-Packets
Wireshark-style analysis without installing anything.
Android tablet apps
PCAPdroid (capture tablet traffic, export .pcap)
Google Play
Notes
← Week 3
Week 5 →
PingTools Network Utilities
Google Play
ping, traceroute, DNS lookup, port scan.
Termux (Linux terminal on Android)
Google Play
Run ping, traceroute, dig, ssh, nmap and Python on the tablet.
Official docs & reading
Wireshark sample captures
Wireshark
DHCP failures
Incorrect VLAN assignments
Routing problems
Packet loss and latency
MTU-related connectivity problems
Practise methodical troubleshooting: diagnose each fault type above in your lab without randomly changing configurations.
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