# NetMaster: Learn Networking > Master computer networking offline: OSI, TCP/IP, IPv6, Subnetting & CLI tools. Canonical page: [https://chrome-stats.com/d/com.hb.netmaster](https://chrome-stats.com/d/com.hb.netmaster) ## Overview - **ID:** `com.hb.netmaster` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** CLEANTIX HYGIENE (PRIVATE) LIMITED - **Category:** EDUCATION - **Downloads:** 8 - **Version:** 1.0.0 - **Last updated:** 2026-07-27 - **First published:** 2026-07-27 - **Publisher country:** PK - **Size:** 24 MB - **Data as of:** 2026-09-14 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.hb.netmaster) - **Privacy policy:** [https://urlsofstore.shop/netmaster/privacy\_policy.html](https://urlsofstore.shop/netmaster/privacy_policy.html) ## Description NetMaster is the ultimate 100% offline study hub designed for computer networking students, IT professionals, software engineers, and certification aspirants preparing for CCNA, Network+, and Enterprise Architect exams.

Whether you are starting from absolute foundations or mastering advanced cloud routing protocols, NetMaster provides a structured 8-module masterclass, real-time interactive engineering sandboxes, and active recall streak challenges without requiring any internet connection or user login.

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📚 COMPREHENSIVE 8-MODULE CURRICULUM

1. Foundations & Physical Layer: Network topologies (Star, Mesh, Ring), Copper UTP/STP, Single-Mode & Multi-Mode Fiber Optics, Layer 1-7 hardware devices, Collision vs Broadcast domains, and OSI vs TCP/IP 4-Layer models.
2. Link Layer & Switching: Ethernet II frame structures, 48-bit MAC addressing, ARP caching & gratuitous ARP, 802.1Q VLAN trunking, and Spanning Tree Protocol (STP / RSTP 802.1w).
3. Network Layer & IP Addressing: IPv4 addressing, CIDR host math, RFC 1918 Private IPs, Static/Dynamic NAT, PAT/SNAT, IPv6 128-bit architecture, SLAAC autoconfiguration, and ICMP diagnostic mechanics.
4. Routing Protocols & Architecture: Routing table lookups, Longest Prefix Match (LPM) algorithms, Administrative Distance (AD), Single & Multi-Area OSPF (LSA types & SPF math), and BGP Autonomous System path vectors.
5. Transport Layer & Flow Control: TCP 3-Way Handshake, 4-Way Teardown, Sliding Window Protocol, Congestion Avoidance algorithms (Slow Start, Fast Retransmit), and UDP datagram mechanics.
6. Application Protocols: DNS recursive/iterative hierarchy, HTTP/1.1 to HTTP/3 QUIC evolution, and DHCP DORA lease workflows.
7. Network Security & Cryptography: Next-Gen Firewalls (NGFW), DMZ design, IDS vs IPS, TLS 1.3 1-RTT Handshake, IPsec VPNs, WireGuard, ARP spoofing, and DDoS mitigation strategies.
8. Wireless, Cloud & Modern SDN: 802.11ax/be (Wi-Fi 6E & Wi-Fi 7), WPA3 SAE security, Control Plane vs Data Plane separation, OpenFlow, and Virtual Private Cloud (VPC) subnets.

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âš¡ INTERACTIVE ENGINEERING HANDS-ON TOOLS

• Bitwise Subnet Calculator: Calculate network IDs, broadcast addresses, wildcard masks, usable host ranges, and binary bit masks in real time with interactive CIDR controls.
• CLI Diagnostic Terminal Sandbox: Practice network troubleshooting commands offline using simulated terminal diagnostics including ping, traceroute, nslookup, netstat, arp -a, and ipconfig /all.

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🧠 ACTIVE RECALL & DAILY STREAK CHALLENGES

• Topic of the Day: Featured daily networking protocol selected automatically to keep your knowledge sharp.
• Daily Streaks: Track consecutive study days with local persistence to build long-term retention.
• Flashcards & Quizzes: Unit end flashcard flips and multiple-choice quizzes with instant explanation feedback.

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🔒 100% OFFLINE & PRIVACY FIRST

NetMaster runs completely offline on your device. Zero account creation, zero tracking, and zero internet connection required.

Master computer networking today with NetMaster! ## Rankings - #2,869,589 — Overall ## Permissions and access ### Permissions - `com.android.vending.CHECK_LICENSE` - `com.hb.netmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Computer Networks - MasterNow](https://chrome-stats.com/d/computer.networks.computer.science) — 2,992 users - [NetMaster](https://chrome-stats.com/d/com.netmaster.app) — 110 users - [NetMentor: IT Network Mastery](https://chrome-stats.com/d/com.cisco.quizapp) — 56 users - [Learn Computer Networking Pro](https://chrome-stats.com/d/com.algsoftlab.learnnetworking) — 34 users - [Learn Computer Networking](https://chrome-stats.com/d/com.algsoftlab.learnnetworkinglt) — 5,100 users - [Networks PRO](https://chrome-stats.com/d/com.drewtech736.networkpro) — 45 users - [Learn Networking Offline CCNA](https://chrome-stats.com/d/com.codepoint.learnnetworking) — 108,525 users, 4.28 / 5 - [Networking concepts -Begineers](https://chrome-stats.com/d/com.drewtech736.networkingconcepts) — 47 users - [CCNA - Preparation App](https://chrome-stats.com/d/in.nexzone.ccna) — 11,855 users, 3.67 / 5 - [Cisco Networking](https://chrome-stats.com/d/coursetech.CiscoNetworking) — 7,528 users - [OSI Master](https://chrome-stats.com/d/osi.master) — 25 users - [Networking Concepts and Config](https://chrome-stats.com/d/com.nmnconfignetwork) — 210,697 users, 4.54 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.hb.netmaster)