Rajesh Sharma

Network Exploitation & Wireshark

How do you analyze suspicious PCAP files in Wireshark to locate malicious C2 beaconing traffic?

Isolate periodic DNS/HTTP/HTTPS requests with Wireshark filters, IO graphs, and payload inspection to pinpoint C2 beacons.

Network Exploitation & Wireshark

How to inspect decrypted HTTPS traffic in Wireshark using SSLKEYLOGFILE environment variables?

Set SSLKEYLOGFILE, launch the client, point Wireshark TLS prefs to the file, and traffic decrypts.

Web App Security & OWASP Top 10

What are the best practices for secure password hashing and session cookie storage?

Use Argon2id (or bcrypt $2b$) with proper parameters and set Secure, HttpOnly, SameSite=Strict cookies with short lifetimes.

Data Analytics

What are the main differences between ETL (Extract, Transform, Load) and ELT (Extract, Load, Transform)?

ETL transforms before loading; ELT loads raw data then transforms inside the warehouse, affecting latency, scalability, and tool choice.

Business Intelligence & Dashboards

What are the performance tuning steps for slow dashboard load times in enterprise BI reports?

Speed up enterprise BI dashboards by trimming models, indexing source queries, limiting visual rows, and applying server‑side caching with concrete thresholds.

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