BIT · Semester IV
Network and Data Communications syllabus
Official TU syllabus for Network and Data Communications (BIT254): 10 units, 84 topics. Every unit links to its notes and solved questions.
1
Network Fundamentals and OSI Model
6 Q- OSI reference model layers
- OSI layer functionality and hardware
- Practical implications of OSI layers
- TCP/IP protocol suite layers
- Network categories and types
- Guided transmission media
- Unguided transmission media
2
Data Transmission and Encoding
11 Q- Digital signal encoding NRZ-L
- Digital signal encoding NRZ-I
- Manchester encoding
- Differential Manchester encoding
- Binary Amplitude Shift Keying
- Binary Phase Shift Keying
- Attenuation distortion and noise
- Shannon capacity calculation
- Bandwidth and bit rate
3
Multiplexing and Switching
10 Q- Time Division Multiplexing
- Frequency Division Multiplexing
- Wavelength Division Multiplexing
- Circuit switching
- Packet switching phases
- Circuit switching advantages and disadvantages
- Packet switching advantages and disadvantages
- Satellite networks
4
Medium Access Control and ALOHA
5 Q- Pure ALOHA protocol procedure
- Pure ALOHA vulnerable time
- Slotted ALOHA protocol
- Pure ALOHA vs slotted ALOHA
- ALOHA throughput calculation
- Collision-free frame transmission
5
Error Detection and Control
8 Q- Cyclic Redundancy Check CRC
- CRC polynomial calculation
- CRC transmitted frame encoding
- CRC error checking at receiver
- Stop-and-Wait ARQ design
- Selective Repeat ARQ design
- ARQ flow diagrams
- Reliable and unreliable protocols
- Error detection techniques
6
Congestion Control and Traffic Management
7 Q- Congestion control definition
- Open-loop congestion control
- Closed-loop congestion control
- Leaky-bucket algorithm
- Token bucket algorithm
- Acknowledgement policy
- Discarding policy
- Quality of Service
7
Network Layer Protocols and Routing
10 Q- Link State routing protocol features
- Link State routing shortest path
- Distance Vector routing protocol features
- Distance Vector routing example
- Link State vs Distance Vector routing
- Routing protocol disadvantages
- MAC address definition
- ARP operation
- IGMP multicast group joining
8
Transport and Application Layer Protocols
6 Q- TCP protocol characteristics
- UDP user datagram format
- UDP ports
- TCP vs UDP differences
- TCP reliability mechanisms
- Sliding Window Protocol
- FTP protocol and operation
- HTTP protocol
- SNMP protocol and operation
9
Network Services and Management
6 Q- DNS domain name resolution
- DNS recursive resolution
- DNS iterative resolution
- DNS caching
- DHCP protocol
- DNS vs DHCP differences
- NAT definition and types
- Network Address Translation
- POP protocol
10
IP Addressing and Subnetting
3 Q- IPv4 protocol
- IPv6 protocol
- IPv4 vs IPv6 differences
- Subnetting concept
- Subnet ID calculation
- Subnet mask determination
- Broadcast address calculation
- Network range identification
- Subnetting advantages
- Switch router and hub differentiation
Study BIT254 the smart way
Solved questions, flashcards & practice