Bsc CSIT Semester 4 – Computer Networks – Unit 6: Application Layer (7Hrs.)

DNS, FTP, and SFTP 1. DNS (Domain Name System) Definition: DNS is a system that translates human-readable domain names (like www.example.com) into IP addresses (like 192.168.1.1) used by computers

Architecture of WWW and URL Architecture of WWW (World Wide Web) The World Wide Web (WWW) is a system where information is stored and accessed through web pages using the internet. It follows a clien

Why Do We Need Wireless LAN? Definition: A Wireless LAN (WLAN) allows devices to connect to a local area network without physical cables, using radio waves. Reasons for Using WLAN: 1. Mobility: User

Why DNS is Needed - Humans find it difficult to remember numeric IP addresses like 172.217.5.110. - DNS (Domain Name System) translates human-friendly domain names (like www.google.com) into IP addr

Introduction IEEE 802.12 is a standard for Wireless Local Area Networks (WLANs) and is also referred to as the Demand Priority Protocol. It is primarily designed for high-speed LANs using a star top

Introduction Public Key Encryption (PKE), also known as asymmetric encryption, is a cryptographic system that uses two separate keys: 1. Public Key: Can be shared openly and used to encrypt data.

Introduction Network Management involves monitoring, controlling, and maintaining a computer network to ensure efficient and reliable operation. The infrastructure of network management includes the

Definition The Domain Name System (DNS) is a distributed naming system used to translate human-readable domain names (like www.google.com) into IP addresses (like 142.250.190.14) that computers use to

Introduction Network management involves monitoring, maintaining, and optimizing a computer network to ensure efficient, reliable, and secure operation. It includes tasks like fault management, conf

a. HTTP (Hypertext Transfer Protocol) - Definition: HTTP is an application layer protocol used for transferring hypertext documents (web pages) over the Internet. - Purpose: Enables communication be

Features of the Application Layer The Application Layer is the topmost layer of the OSI and TCP/IP model. It provides services directly to the end users and enables applications to communicate over

Difference Between Web Server and Proxy Server | Basis | Web Server | Proxy Server | |------------|----------------|------------------| | Definition | A web server stores, processes, and delivers web