18CS52 Computer Networks and Security syllabus for IS



A d v e r t i s e m e n t

Module-1 Application Layer 10 hours

Application Layer:

Principles of Network Applications: Network Application Architectures, Processes Communicating, Transport Services Available to Applications, Transport Services Provided by the Internet, Application-Layer Protocols. The Web and HTTP: Overview of HTTP, Non-persistent and Persistent Connections, HTTP Message Format, User-Server Interaction: Cookies, Web Caching, The Conditional GET, File Transfer: FTP Commands & Replies, Electronic Mail in the Internet: SMTP, Comparison with HTTP, Mail Message Format, Mail Access Protocols, DNS; The Internet's Directory Service: Services Provided by DNS, Overview of How DNS Works, DNS Records and Messages, Peer-to-Peer Applications: P2P File Distribution, Distributed Hash Tables, Socket Programming: creating Network Applications: Socket Programming with UDP, Socket Programming with TCP.

T1: Chap 2 RBT: L1, L2, L3

Module-2 Transport Layer 10 hours

Transport Layer :

Introduction and Transport-Layer Services: Relationship Between Transport and Network Layers, Overview of the Transport Layer in the Internet, Multiplexing and Demultiplexing: Connectionless Transport: UDP,UDP Segment Structure, UDP Checksum, Principles of Reliable Data Transfer: Building a Reliable Data Transfer Protocol, Pipelined Reliable Data Transfer Protocols, Go-Back-N, Selective repeat, Connection-Oriented Transport TCP: The TCP Connection, TCP Segment Structure, RoundTrip Time Estimation and Timeout, Reliable Data Transfer, Flow Control, TCP Connection Management, Principles of Congestion Control: The Causes and the Costs of Congestion, Approaches to Congestion Control, Network-assisted congestion-control example, ATM ABR Congestion control, TCP Congestion Control: Fairness.

T1: Chap 3 RBT: L1, L2, L3

Module-3 The Network layer 10 hours

The Network layer:

What's Inside a Router?: Input Processing, Switching, Output Processing, Where Does Queuing Occur? Routing control plane, IPv6,A Brief foray into IP Security, Routing Algorithms: The Link-State (LS) Routing Algorithm, The Distance-Vector (DV) Routing Algorithm, Hierarchical Routing, Routing in the Internet, Intra-AS Routing in the Internet: RIP, Intra-AS Routing in the Internet: OSPF, Inter/AS Routing: BGP, Broadcast Routing Algorithms and Multicast.

T1: Chap 4: 4.3-4.7 RBT: L1, L2, L3

Module-4 Network Security 10 hours

Network Security:

Overview of Network Security:Elements of Network Security , Classification of Network Attacks ,Security Methods ,Symmetric-Key Cryptography :Data Encryption Standard (DES),Advanced Encryption Standard (AES) , Public-Key Cryptography :RSA Algorithm ,Diffie-Hellman Key-Exchange Protocol , Authentication :Hash Function , Secure Hash Algorithm (SHA) , Digital Signatures , Firewalls and Packet Filtering ,Packet Filtering , Proxy Server .

Textbook2: Chapter 10 RBT: L1, L2, L3

Module-5 Multimedia Networking 10 hours

Multimedia Networking:

Properties of video, properties of Audio, Types of multimedia Network Applications, Streaming stored video: UDP Streaming, HTTP Streaming, Adaptive streaming and DASH, content distribution Networks Voice-over-IP :Limitations of the Best-Effort IP Service ,Removing Jitter at the Receiver for Audio ,Recovering from Packet Loss Protocols for Real-Time Conversational Applications , RTP , SIP

Textbook11: Chap 7

RBT: L1, L2, L3

 

Course Outcomes:

The student will be able to :

• Explain principles of application layer protocols

• Recognize transport layer services and infer UDP and TCP protocols

• Classify routers, IP and Routing Algorithms in network layer

• Understand the Wireless and Mobile Networks covering IEEE 802.11 Standard

• Describe Multimedia Networking and Network Management

 

Question Paper Pattern:

• The question paper will have ten questions.

• Each full Question consisting of 20 marks

• There will be 2 full questions (with a maximum of four sub questions) from each module.

• Each full question will have sub questions covering all the topics under a module.

• The students will have to answer 5 full questions, selecting one full question from each module.

 

Textbooks:

1. James F Kurose and Keith W Ross, Computer Networking, A Top-Down Approach, Sixth edition, Pearson,2017 .

2. Nader F Mir, Computer and Communication Networks, 2nd Edition, Pearson, 2014.

 

Reference Books:

1. Behrouz A Forouzan, Data and Communications and Networking, Fifth Edition, McGraw Hill, Indian Edition

2. Larry L Peterson and Brusce S Davie, Computer Networks, fifth edition, ELSEVIER

3. Andrew S Tanenbaum, Computer Networks, fifth edition, Pearson

4. Mayank Dave, Computer Networks, Second edition, Cengage Learning

Last Updated: Tuesday, January 24, 2023