Sunny Classroom

Disaster Recovery Sites: hot, warm, & cold

AS : Interior and border routers, Border Gateway Protocol

How SSL certificate works?

How does a computer communicate locally and remotely?

SMS phishing attacks and how to prevent them

Address Resolution Protocol (ARP)

Why digital certificate?

Stack and Queue

What is digital signature?

SSL/TLS handshake Protocol

AAA framework: TACACS+ vs RADIUS

PKI: self-signed digital certificate?

Firewall

VLSM Subnetting - subnetting a subnet

Analog vs Digital

AAA framework and RADIUS

ChatGPT: A mind-blowing AI

Simplex, half duplex, and full duplex

Malware: virus, worm, Trojan horse, spyware, & ransomware

IEEE 802 1Q: Tagging and Trunking 101

collision vs. broadcast domain: Hub, Switch and Router

Malware 2: Rootkit, keylogger, logic bomb, adware, & botnet

TCP vs. UDP

Special and private IPv4 addresses

A brief history of Computer Storage Media

The Swiss Cheese Model for Cyberattacks

Distance-vector vs link-state and a hybrid EIGRP

A Brief History of the WEB

Circuit Switching vs. Packet Switching

Switch attacks: MAC Flooding and MAC Spoofing

All about Bluetooth

static vs dynamic routing & routing metrics

VPN - Virtual Private Network

Distance vector routing protocols: RIP and IGRP

How TCP starts and close session?

How to test if g is a primitive root of a prime number p?

Decimal to binary: two methods

Network Devices to Protect your Intranet

ARP poisoning and Port mirroring attacks

Disaster Recovery Sites: hot, warm, & cold

Surface net, Deep net, and darknet

The ElGamal Algorithm: a simple example

Link state routing protocols: IS to IS and OSPF

Routers, functions, interfaces and ports

Dictionary Attack and Brute Force Attack: hacking passwords

Straight through, crossover, rollover - Where & When to use what?

How hash function work?

General switch vs managed switch

Private Key Encryption (Symmetric Key Encryption)

One - way function & trapdoor function in modern cryptography

How DHCP works?