NETWORKING quiz #1

Early methods of communication

Torch Relays, Smoke Signals, Voice Relay, Drumbeats

First standardized written language

2900 BC (Egypt)

First recorded use of homing pigeons for messages

776 BC (Athens)

First postal service established

14 AD (Rome)

Invention of paper as we know it today

100 AD (China)

Johannes Gutenberg invents the printing press

1455 (Germany)

Henry Mill patents the typewriter

1714 (England)

Claude Chappe invents the semaphore

1793 (France)

Charles Wheatstone invents telegraph & microphone

1821 (England)

Joseph Henry invents electric telegraph

1831 (USA)

Samuel Morse invents Morse Code

1835

Alexander Graham Bell patents the first telephone

1876 (USA)

Guglielmo Marconi transmits first radio signal across Atlantic

1902 (UK)

John Logie Baird demonstrates first television

1925 (UK)

Harvard IBM Mark 1 computer marks start of information age

1944 (USA)

Telstar, first communications satellite, launched

1962

ARPANET, the first Internet, begins

1969

First cellular phone communication network

1979 (Japan)

Global Connectivity

Networks connect people worldwide despite distance

Instant Sharing

High-speed internet allows real-time updates, photos, and videos

E-commerce

Global reach, secure transactions, personalized shopping experience

Cloud Computing

Scalable storage, teamwork tools, business continuity

Remote Work

Seamless communication, VPNs, flexibility for employees

Router

Connects networks, directs data packets

Switch

Connects devices in LAN, directs data to correct device

Modem

Translates signals between ISP and local network

Network OS

Software managing network resources (e.g., Cisco IOS, Windows Server)

Protocols

Rules enabling device communication (e.g., TCP/IP, HTTP, DNS, SMTP, DHCP)

Network Administrator

Configures, maintains, and secures networks

Security Protocols

SSL/TLS, IPSec, WPA3, MFA, AES, Kerberos

Star Topology

Devices connected to central hub; easy to manage but hub failure breaks network

Bus Topology

All devices share one cable; cheap but fragile and hard to troubleshoot

Ring Topology

Devices form a circle; predictable but one failure breaks network

Mesh Topology

Devices connected to all others; reliable but costly

Hybrid Topology

Mix of two or more topologies; flexible but complex

Nodes

Devices in a network (PC, server, router, printer)

Links

Connections between devices (Ethernet, Wi-Fi, fiber optics)