aylmerbritto

What is Networking ?

When you say networking, it broadly refers to the entire ecosystem that allows computers, devices, and systems to communicate and share resources—locally or across the internet. It includes:

1. Hardware – routers, switches, firewalls, cables, wireless access points, and network interface cards.
2. Protocols – rules and standards like TCP/IP, HTTP, FTP, etc., that define how data moves.
3. IP Addressing & Subnetting – assigning addresses to devices and organizing networks into smaller segments.
4. Routing & Switching – how data finds its way between networks (routing) or within the same network (switching).
5. Security – firewalls, VPNs, encryption, and access control to protect data and devices.
6. Topology – the structure/layout of a network (star, mesh, bus, etc.).
7. Services – DNS, DHCP, NAT, and other background processes that make networks usable.

aylmerbritto

import pandas as pd

def findDuplicates(df,key):
    duplicates = df[df.duplicated([key], keep=False)]
    print(duplicates)
    return duplicates

def notPaidList(wholeSheet,paidSheet, Key):
    #print("=================================")
    whSheetMerged= wholeSheet.merge(paidSheet, on=Key, how="left", indicator=True)