Computer Network Handwritten Notes PDF – Complete Semester Syllabus
Looking for high-quality computer network handwritten notes? You've come to the right place. These computer network lecture notes are carefully crafted to help BCA, B.Tech, and GATE aspirants master networking concepts. Whether you need computer network last minute notes for exams or a deep dive into computer network security notes pdf, this guide covers it all.
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UNIT I — Introduction & Network Models
Fundamental concepts of data communication and networking architectures.
- Data Communication: Components, Data Representation, Simplex, Half Duplex, and Full Duplex Transmission.
- Basics: Modulation, Multiplexing, Internet, Topologies, Packet and Circuit switching.
- Models: Deep dive into OSI model and TCP/IP Model.
- Physical Layer: LAN technologies and Ethernet.
UNIT II — Data Link & Network Layers
Focus on reliable data transfer and logical addressing across the network.
- Data Link Layer: MAC Addressing, Framing, Error control (Stop and Wait, Go back – N, Selective Repeat ARQ), Sliding Window Protocol.
- Medium Access Control: Random access, Controlled Access, and channelization protocols.
- Network Layer: Logical addressing (IPv4, IPv6), Subnetting, ICMPv4, ARP, RARP, and BOOTP.
UNIT III — Network Devices & Routing
Hardware and algorithms that power the global internet.
- Devices: Repeater, hub, switch, router, and gateway.
- Routing Algorithms: Shortest Path, Flooding, Hierarchical Routing, Link State, and Distance Vector Routing.
- Transport Layer: Process-to-Process Communication, UDP, TCP connection management.
UNIT IV — Advanced Topics & Security
Optimizing performance and securing the network environment.
- QoS & Congestion: Congestion Control, Quality of Service (QoS) improving techniques.
- Application Layer: DNS, EMAIL (SMTP/POP3), FTP, HTTP, SNMP.
- Network Security: Firewalls, security goals, types of attack, symmetric and asymmetric key ciphers.
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