Computer Network Tutorial | Learn Data Communication & Networking
Discover our Computer Network Tutorial, covering basic and advanced concepts of Data Communication & Networks (DCN). Learn about networking fundamentals, communication channels, network nodes, protocols, topologies, and data transfer methods. Ideal for beginners and professionals, this guide provides a strong foundation in computer networking and connectivity.
Computer Networks
Our Computer Network tutorial covers both basic and advanced concepts of Data Communication & Networks (DCN). It is designed for beginners as well as professionals.
What is Computer Networking?
A computer network is a group of devices connected through links, allowing communication and data transfer. These devices, known as nodes, can be computers, printers, or any other device capable of sending and receiving data. The links that connect these nodes are called communication channels.
Why is Computer Networking Important?
Computer networking enables distributed processing, where tasks are divided among multiple computers. Instead of a single system handling the entire workload, different computers process separate parts of the task.
Advantages of Distributed Processing
- Security: It allows restricted access to systems. For example, a bank's ATM system enables users to access their accounts without exposing the entire banking database.
- Faster Problem Solving: Multiple computers working together can solve problems faster than a single machine.
- Security Through Redundancy: Running the same program on multiple computers ensures reliability. If one system fails, others can take over.
Topics Covered in This Tutorial
- Introduction to Computer Networks
- Features of Computer Networks
- Types of Computer Networks
- Network Architecture
- Networking Hardware & Software
- Internet and Intranet
- Website Hosting and Networking
- Local Area Network (LAN)
- Wide Area Network (WAN)
Computer Network Interview Questions
We have compiled a list of commonly asked interview questions to help you prepare for networking-related job interviews.
Computer Network MCQs
Test your knowledge with multiple-choice questions (MCQs) on Computer Networking.
Prerequisites
There are no specific prerequisites for learning Computer Networking. However, basic knowledge of computers and the internet will be helpful.
Who Can Learn From This Tutorial?
This tutorial is ideal for students, IT professionals, and anyone interested in learning about computer networking.
Facing Any Issues?
We aim to provide an error-free learning experience. If you find any mistakes, please let us know through our contact form.
- Home
- Introduction
- Features
- Architecture
- Components
- Types
- Topologies
- Transmission Modes
- Models
- OSI Model
- TCP/IP Model
- Digital Transmission
- Transmission Media
- Guided Transmission Media
- Unguided Transmission Media
- Multiplexing
- Switching
- Switching Modes
- Switching Techniques
- Data Link Layer
- Error Detection
- Error Correction
- Data Link Controls
- Network Layer
- Network Addressing
- Routing
- Network Layer Protocols
- Routing Algorithms
- Distance Vector Routing Algorithm
- Link State Routing Algorithm
- Transport Layer
- Transport Layer Protocols
- Application Layer
- Client-Server Model
- DNS
- FTP
- Telnet
- SMTP
- SNMP
- HTTP
- Security
- Privacy
- Digital Signature
- PGP
- Router
- OSI vs TCP/IP
- TCP vs UDP
- TCP
- TCP Port
- IPv4 vs IPv6
- ARP Packet Format
- ARP Table
- Working of ARP
- FTP Client
- FTP Commands
- FTP Server
- I2P Protocol
- Sliding Window Protocol
- SNMP
- SPI Protocol
- IP
- ARP Commands
- ARP Request
- Address Resolution Protocol
- Address Resolution Protocol and its Types
- TCP Retransmission
- CAN Protocol
- HTTP Status Codes
- HTTP vs HTTPS
- RIP Protocol
- UDP Protocol
- ICMP Protocol
- MQTT Protocol
- OSPF Protocol
- Stop and Wait Protocol
- IMAP Protocol
- POP Protocol
- CIFS
- DAS
- DIMM
- iSCSI
- NAS
- NFS
- NVMe
- SAN
- Border Gateway Protocol
- Go-Back-N ARQ
- RJ Cable
- Connection-Oriented vs Connectionless Service
- CDMA vs GSM
- What is MAC Address?
- Modem vs Router
- Switch vs Router
- USB 2.0 vs USB 3.0
- CSMA/CA vs CSMA/CD
- Multiple Access Protocols
- URI vs URL
- IMAP vs POP3
- SSH Meaning
- UTP vs STP
- Status Code 400
- MIME Protocol
- IP Address
- What is a Proxy Server and How Does it Work?
- How to Set Up and Use a Proxy Server
- What is Network Security?
- WWW is Based on Which Model?
- Proxy Server List
- Fundamentals of Networking
- IP Address Format and Table
- Bus Topology vs Ring Topology
- Bus Topology vs Star Topology
- Circuit Switching vs Packet Switching
- Star vs Ring Topology
- Router vs Bridge
- TCP Connection Termination
- Image Steganography
- Network Neutrality
- Onion Routing
- Adaptive Security Appliance Features
- Relabel-to-Front Algorithm
- Types of Server Virtualization
- Access Lists
- Digital Subscriber Line
- Operating System-Based Virtualization
- Context-Based Access Control
- Cristian's Algorithm
- Service Set Identifier
- Voice over Internet Protocol
- Challenge-Response Authentication Mechanism
- Extended Access List
- Li-Fi vs Wi-Fi
- Reflexive Access List
- Synchronous Optical Network
- Wi-Fi Protected Access
- Wi-Fi Protected Setup
- Standard Access List
- Time Access List
- What is 3D Internet?
- 4G Mobile Communication Technology
- Types of Wireless Transmission Media
- Best Networking Courses
- Data Representation in Networking
- Network Criteria
- Classful vs Classless Addressing
- BOOTP vs RARP
- AGP (Accelerated Graphics Port)
- Advantages and Disadvantages of Satellite Communication
- External IP Address
- Asynchronous Transfer Mode
- Types of Authentication Protocols
- Cisco Packet Tracer
- How Does BOOTP Work?
- Subnetting
- Mesh Topology
- Ring Topology
- Star Topology
- Tree Topology
- Zigbee Technology
- Network Layer in OSI Model
- Physical Layer in OSI Model
- Data Link Layer in OSI Model
- Internet Explorer Shortcut Keys
- Network Layer Security: SSL Protocols
- Presentation Layer in OSI Model
- Session Layer in OSI Model
- Subnet Mask
- Transport Layer Security: SSL and SSL Architecture
- Functions, Advantages, and Disadvantages of Network Layer
- Functions, Advantages, and Disadvantages of the Physical Layer
- Types of Internet Connection
- Noisy and Noiseless Channel
- Advantages and Disadvantages of Bus Topology
- Advantages and Disadvantages of Ring Topology
- Advantages and Disadvantages of Star Topology
- Protocols in Noiseless and Noisy Channel
- Advantages and Disadvantages of Mesh Topology
- Cloud Networking: Managing and Optimizing Cloud-Based Networks
- Collision Domain and Broadcast Domain
- Count-to-Infinity Problem in Distance-Vector Routing
- Difference Between Go-Back-N and Selective Repeat Protocol
- Difference Between Stop-and-Wait, Go-Back-N, and Selective Repeat
- Network Function Virtualization (NFV): Transforming Network Architecture with Virtualized Functions
- Network Layer Security: IPSec Modes
- Network Layer Security: IPSec Protocols and Services
- Ping vs. Traceroute
- Software-Defined Networking (SDN): Benefits and Challenges of Network Virtualization
- Software-Defined Networking (SDN) vs. Network Function Virtualization (NFV)
- Virtual Circuits vs. Datagram Networks
- Bluesmack Attack in Wireless Networks
- Bluesnarfing Attack in Wireless Networks
- Direct Sequence Spread Spectrum
- Warchalking in Wireless Networks
- WEP (Wired Equivalent Privacy)
- Wireless Security Encryption
- Wireless Security in an Enterprise
- Quantum Networking
- Network Automation
- Difference Between MSS and MTU
- What is MTU?
- Mesh Networks
- What is an Autonomous System?
- What is MSS?
- Cyber Security and Software Security
- Information Security and Network Security
- Security Engineer and Security Architect
- Protection Methods for Network Security
- Trusted Systems in Network Security
- Authentication Tokens in Network Security
- Cookies in Network Security
- Intruders in Network Security
- Network Security Toolkit in VirtualBox
- Pivoting: Moving Inside a Network
- Security Environment in CNS
- Voice Biometric Technique in Network Security
- Difference Between Kerberos and LDAP
- Cyber Security and Information Security
- GraphQL Attacks and Security
- Application Layer in OSI Model
- Applications of Remote Sensing
- Seven Layers of IT Security
- What is Ad-Hoc TCP?
- What is Server Name Indication?
- Difference Between Infrastructure and Infrastructure-less Network
- Collision Avoidance in Wireless Networks
- Hotspot 2.0
- Intrusion Prevention System (IPS)
- Modes of Connection: Bluetooth
- Noisy Channel Protocols
- Parzen Windows Density Estimation Technique
- Advantages and Disadvantages of Conventional Testing
- Difference Engine and Analytical Engine
- Principle of Information System Security
- What are Bots, Botnets, and Zombies
- Windows Memory Management
- Wireless DOS Attack on WiFi
- Design Principles of Security in Distributed Systems
- MAC Filtering
- Principles of Network Applications
- Time to Live
- What is 1000-Base-T
- 10Base-T
- Difference Between 802.11ac and 802.11ax
- Differentiate Between Circuit Switching, Message Switching, and Packet Switching
- What is Web 3.0
- Collision Detection in CSMA/CD
- IPv4 Header in CNs
- Layered Architecture in CNs
- Define URL in CNs
- Man in CNs
- Routing Protocols in CNs
- Flooding in CN
- CRC in CN
- Application of CN
- CN Architect
- Design Issues for the Layers of CNs
- What is AMD
- Protocol in CN
- CN Projects
- Different Types of Routers
- Wireless Distribution System
- Network Time Protocol
- ARP and its Types in CN
- ARQ in CNs
- Bluetooth in CNs
- Circuit Switching in CN
- Computer Hardware and Networking Course
- Ring Topology in a CN
- Token Ring in CNs
- Medium Access Control in CN
- Need for CN
- Repeater in CN
- Cning a Top-Down Approach
- What is Multiplexing in CN
- Body Area Network
- Ins and Outs of Data Streaming
- Streaming Stored Video
- Cellular Network
- How Can Devices on a Network Be Identified
- How Does the Internet Work
- Authentication Server
- What is Cloud Backup and How Does it Work
- Communication Protocols in System Design
- Extensible Authentication Protocol
- Role-Based Access Control
- Network Enumeration Tools
- Network Protocol Testing
- Windows Networking Commands
- Advantages and Disadvantages of WLAN
- Anonymous File Transfer Protocol
- Automatic Private IP Addressing
- What is Deep Web
- USB Type-C
- User Authentication
- What is a vCard
- IPv4 Headers
- Difference Between Token Ring and Ethernet/Token Ring
- Server Message Block Protocol
- Session Border Controllers
- Short Message Service Center
- What is a Mail Server
- What are Communication Networks
- Initialization Vector
- What is Fiber Optics
- Open Networking
- Access Ports vs. Trunk Ports
- Edge Routers
- IPTV (Internet Protocol Television)
- Wireless Internet Service Provider
- Wireless Backhaul
- Define Protocol in CN
- Virtual Network Adapter
- Virtual Routing and Forwarding
- Virtual Switches
- VLAN (Virtual LAN)
- Wireless Mesh Network (WMN)
- What is Gateway in CN
- Radio Access Network (RAN)
- What is File Sharing
- Passive Optical Network (PON)
- Private IP Address
- Public Key Certificate
- What is Bridge in CN
- Ping Sweep/ICMP Sweep
- Print Server
- WiFi Pineapple
- Walled Garden
- Wireless ISP
- Bridge vs Repeater
- Hardware Security Module (HSM)
- Public Switched Telephone Network
- Analog Telephone Adapter (ATA)
- Host Bus Adapter (HBA)
- iSCSI Initiator
- Simplest Protocol
- Telecommunication Networks
- What is WPS in Wi-Fi?
- Most Important Email Security Protocols
- Data Governance
- Carrier Network
- Most Secure Network Protocol
- Network SMB
- BGP vs. EIGRP
- Wireless Security (WEP, WPA, WPA2, WPA3)
- Cloud Radio Access Network
- Bits Per Second (bps)
- Blade Server
- Command and Control Server
- Computer Networking MCQ
- Computer Networking MCQ Part 2
- Networking Interview Questions