DIFFERENCE BETWEEN SINGLE AND MULTIMODE FIBER

SINGLE-MODE FIBER:

SUPPORTS ONLY ONE MODE OF LIGHT, MEANING LIGHT TRAVELS THROUGH THE CORE IN A STRAIGHT PATH.

HAS A SMALLER CORE DIAMETER, TYPICALLY AROUND 9 MICROMETERS.

OFFERS HIGHER BANDWIDTH AND LONGER TRANSMISSION DISTANCES, UP TO 100 KILOMETERS OR MORE.

USED FOR LONG-HAUL APPLICATIONS SUCH AS TELECOMMUNICATIONS, DATA CENTERS, AND CABLE TV.

MORE EXPENSIVE THAN MULTIMODE FIBER.

MULTIMODE FIBER:

SUPPORTS MULTIPLE MODES OF LIGHT, ALLOWING LIGHT TO TRAVEL THROUGH THE CORE AT DIFFERENT ANGLES.

HAS A LARGER CORE DIAMETER, TYPICALLY 50 OR 62.5 MICROMETERS.

OFFERS LOWER BANDWIDTH AND SHORTER TRANSMISSION DISTANCES, TYPICALLY UP TO 500 METERS.

USED FOR SHORT-DISTANCE APPLICATIONS SUCH AS LANS, BUILDING BACKBONES, AND MEDICAL DEVICES.

LESS EXPENSIVE THAN SINGLE-MODE FIBER.

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DOS AND DDOS ATTACK

A Dos (Denial-Of-Service) Attack and A DDOS (Distributed Denial-Of-Service) Attack Are Both Attempts to Make a Computer System or Network Resource Unavailable to Legitimate Users. However, They Differ in How They Achieve This: Dos Attack: Imagine A Single Person Throwing Rocks at A Castle Gate. A This Person Represents the Attacker, And the Rocks Represent the Malicious Traffic. The Castle Gate Represents the Target System or Network Resource. The Attacker Keeps Throwing Rocks, Trying to Overwhelm the Gate's Defenses and Gain Entry. Dos Attacks Are Typically Launched from A Single System. They Can Be Effective Against Small Systems or Networks, But Larger Systems Can Often Withstand Them. DDos Attack: Imagine An Army Throwing Rocks at A Castle Gate. This Army Represents the Attacker, And the Rocks Represent the Malicious Traffic. The Castle Gate Represents the Target System or Network Resource. The Attackers Coordinate Their Attack, Throwing Rocks from Multiple Directions at Once. ...

Types Of Attack in Network

Common Network Attacks Explained. 1. Overwhelming a Network (DoS/DDoS): Imagine a restaurant that's flooded with too many customers. In a DoS/DDoS attack: A website is overwhelmed with too much traffic. 2. Eavesdropping on Conversations (MitM): Imagine someone listening in on your phone call. In a MitM attack: An attacker listens to your online conversations. 3. Tricking You (Phishing): Imagine receiving a fake email from your bank. In phishing: Attackers try to trick you into giving them your personal information. 4. Finding a Weakness in a Website (SQL Injection): Imagine finding a hole in a fence. In an SQL injection attack: An attacker finds a weakness in a website to steal or change data. 5. Planting a Hidden Camera (XSS): Imagine someone hiding a camera in a party. In an XSS attack: An attacker hides harmful code on a website to spy on you. 6. Guessing Your Password (Password Attck): Imagine trying to guess a friend's password. In a pas...

FLAOT ROUTE + NAT

TOPOLOGY GO TO ISP-1 ROUTER AND ENTER THIS COMMANDS IN CONFIGURATION TERMINAL MODE . inter f0/0 ip address 202.56.215.1 255.255.255.0 no shutdown exit ip dhcp excluded-address 202.56.215.1 202.56.215.20 ip dhcp pool isp1 network 202.56.215.0 255.255.255.0 default-router 202.56.215.1 exit inter loopback 0 ip address 8.8.8.8 255.0.0.0 no shutdown exit write GO TO ISP- 2 ROUTER AND ENTER THIS COMMANDS IN CONFIGURATION TERMINAL MODE . inter f1/1 ip address 200.200.200.1 255.255.255.0 no shutdown exit ip dhcp excluded-address 200.200.200.1 200.200.200.100 ip dhcp pool isp2 network 200.200.200.0 255.255.255.0 default-router 200.200.200.1 exit inter loopback 0 ip address 8.8.8.8 255.0.0.0 no shutdown exit write GO TO R1 ROUTER AND ENTER THIS COMMANDS IN CONFIGURATION TERMINAL MODE . inter fa0/0 ip address 192.168.100.1 255.255.255.0 no shut exit inter f1/0 ip address dhcp no shutdown inter f1/1 ip address dhcp no shut ip dhcp pool manan network 192.168.100.0 255....

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