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Public & Private Networks - (BCA / B.Tech)

Public and Private Networks in Computer Networks:

Computer networks are of two main types: public networks and private networks. These two types of networks differ based on their use, structure, and security. While public networks are available to everyone, private networks can only be accessed by a limited group of users. It is essential to understand the differences, benefits, and challenges of both these networks.

Public Network:

A public network is a network that is open and available to the general public. Anyone can easily connect to this network using internet facilities. The internet is the largest and most famous example of a public network. Additionally, free Wi-Fi facilities available at places like railway stations, airports, and cafes also fall under public networks.

Features of a Public Network:

Public Access: Open to everyone without special permission.
Unrestricted Usage: Can be used for any activity like browsing, social media, etc.
Low Security: Security challenges exist as many people can connect simultaneously.
Easy Availability: Generally available in public places.

Advantages: Availability for everyone, often free, and wide connectivity.

Challenges: Low security, lack of privacy, and potentially slow speeds due to high user traffic.

Private Network:

A private network is a secure and limited network that only authorized users can access. It is designed for the internal use of a company, institution, or organization. The number of connected devices and users is limited, which increases network security and stability.

Features of a Private Network:

Restricted Access: Only for authorized users.
High Security: Prioritizes security with measures like firewalls, encryption, and passwords.
Private and Confidential: Designed for institutions to keep their sensitive information secure.
Controlled Usage: Only permitted individuals can use the network.

Advantages: Better security, privacy protection, and better performance due to fewer users.

Challenges: High cost for setup and maintenance, limited access, and requires dedicated management.

Public & Private Networks

Public and Private Networks in Computer Networks:

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