Network and System Administration · Unit 3
TCP/IP Protocol Suite and IP Addressing
Exam-focused notes for TCP/IP Protocol Suite and IP Addressing (Network and System Administration, BIT451): what the TU syllabus asks and how it has actually been tested, with 5 solved past questions from this unit.
What this unit covers
- TCP/IP protocol layers and functionalities
- IPv4 addressing and principles
- IPv6 addressing and differences from IPv4
- Classless Inter-Domain Routing (CIDR)
- Variable Length Subnet Masking (VLSM)
- CIDR and VLSM benefits and differences
- Multicast addressing and concepts
CIDR and VLSM benefits and differences
What is the difference between VLSM and CIDR? List the benefits of VLSM? [5]
Aspect VLSM CIDR -------------------- Full Form Variable Length Subnet Mask Classless Inter-Domain Routing Scope Used within an organization for internal subnetting Used across the internet for routing and address allocation Subnet Mask Different subnet mas...
Full solved answer →Classless Inter-Domain Routing
How do you think classless Inter-Domain Routing improves the efficiency of address distribution? Explain. [5]
Classless Inter-Domain Routing (CIDR) is a method of allocating IP addresses and routing that removes the rigid class-based structure (Class A, B, C) of traditional IP addressing. - CIDR uses variable-length subnet masks (VLSM) instead of fixed class bounda...
Full solved answer →Multicast addressing and concepts
Write short notes on: (a) Multicast (b) IPv4 [5]
Definition: Multicast is a communication method where data is transmitted from one source to multiple destinations simultaneously. It is a one-to-many transmission model where a single packet is sent once and delivered to a group of interested receivers. Ke...
Full solved answer →TCP/IP protocol layers and functionalities
Explain the functionalities of different layers of TCP/IP protocol suite.How IPV6 is different from IPV4? Explain.[6+4]
(a) Functionalities of Different Layers of TCP/IP Protocol Suite The TCP/IP model consists of four layers, each with distinct functionalities: - Provides network services directly to user applications and end-users - Handles user interaction and data format...
Full solved answer →Variable Length Subnet Masking
Write short notes on: a) VLSM b) ACL [5+2.5+2.5]
Definition: VLSM is a subnetting technique that allows different subnets within the same network to have different subnet mask lengths. Unlike traditional subnetting where all subnets use the same mask, VLSM enables variable-length masks, making efficient u...
Full solved answer →Make Unit 3 stick
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