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Updated version of the classic Subnetting Practice question generator by Practical Networking.

Feedback? Mention it on my Discord server: pracnet.net/discord.

Instructions:

Each time you click "Next Problem" (or reload the page) a random IP address and CIDR value is generated.

You are then tasked to solve the Network ID, Broadcast IP, First Host IP, Last Host IP, and Next Network addresses for the target IP.

Options:

  • Auto‑fill non‑interesting octets pre-fills the octets that aren’t part of the subnet calculation. For example: with a /24, the first three octets are filled in each answer row.
  • Auto‑check automatically checks a row once all four octets are entered.

Act Unlock Tool Pro V20 Verified -

: Choose the desired function (e.g., "Erase FRP") and follow the on-screen prompts to connect the device while holding specific volume keys. Security and Usage Warnings

: Most operations require the device to be in MTP , Fastboot , or EDL/Brom mode .

While these tools are powerful, they carry significant risks: act unlock tool pro v20 verified

: Supports many widespread handsets using QC chipsets through dedicated flashing modes.

: If used for gaming-related unlocks (such as in Call of Duty), these tools are highly detectable and often lead to permanent account bans. : Choose the desired function (e

The is a Windows-based utility designed for servicing Android smartphones, primarily focusing on FRP (Factory Reset Protection) bypass , pattern/pin removal, and bootloader management. This "Verified" version typically refers to builds that have been tested for stability and compatibility across major chipset architectures like MediaTek (MTK), Qualcomm, and Samsung. Key Features and Capabilities

: Includes deep support for Vivo (V-series, X-series, Y-series), Samsung , Huawei , and Oppo . How to Use ACT Unlock Tool Pro : If used for gaming-related unlocks (such as

: Specifically targets Xiaomi devices to bypass Mi Cloud locks.

The V20 build focuses on broad compatibility, specifically targeting: