NetCipher Academy

21/12/2025

fine-tuning in machine learning for large language models (LLMs).

Fine-tuning does involve starting with a pre-trained model and training it further on a specialized dataset to adapt it to specific tasks

This flow is standard in LLM development. Dataset A is used for general pre-training, and Dataset B for task-specific fine-tuning.

20/12/2025

Cisco switch configure modes

19/12/2025

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18/12/2025

18/12/2025

"Confused by /etc, /var, or /opt? This cheat sheet breaks it down.

17/12/2025

Switches use interface type ssuch as Ethernet, FastEthernet, GigabitEthernet, TenGigabit, and so on for faster speeds.
LAN switches also use a numeric interface identifier (interface ID) to
identify the specific port. Interface IDs can use one, two, or three digits,
with the digits separated by a slash, as chosen by Cisco when they designed
the switch. For instance, Cisco Catalyst 9000 switches typically use three digit
identifiers like GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.

17/12/2025

Cisco Switch Memory Types

RAM: Sometimes called DRAM, for dynamic random-access
memory, RAM is used by the switch just as it is used by any other
computer: for working storage. The running (active) configuration file
is stored here.

Flash memory: Either a chip inside the switch or a removable
memory card, flash memory stores fully functional Cisco IOS images
and is the default location where the switch gets its Cisco IOS at boot
time. Flash memory also can be used to store any other files, including
backup copies of configuration files.

ROM: Read-only memory (ROM) stores a bootstrap (or boothelper)
program that is loaded when the switch first powers on. This bootstrap
program then finds the full Cisco IOS image and manages the process
of loading Cisco IOS into RAM, at which point Cisco IOS takes over
operation of the switch.

NVRAM: Nonvolatile RAM (NVRAM) stores the initial or startup
configuration file that is used when the switch is first powered on and
when the switch is reloaded.

16/12/2025

AI terms you MUST know in 2025 🤖
Simple. Clear. Career-ready.
📍 Netcipher Academy.

16/12/2025

Understanding IP classes is the foundation of Computer Networking🌐

15/12/2025

Save this cheat sheet for quick reference and revise smarter, not harder.