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Data Link Layer

39 posts

Data Link Layer Services

Last Updated: 05 January 2026

Data Link Layer is the second layer of seven-layer Open System Interconnection (OSI) reference model of computer networking and lies just above Physical Layer. It is respo...read more

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Computer Networks

Data Link Layer

Types of Errors in Computer Network

Last Updated: 23 July 2025

Computer networks are the backbone of communication systems by which data and information can be exchanged between multiple communicating devices and users. In modern days...read more

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Computer Networks

Data Link Layer

What is Minimum Ethernet Frame Size?

Last Updated: 07 June 2022

The minimum size of an Ethernet frame is 64 bytes. The Ethernet protocol is responsible for Network Interface Card (NIC) to Network Interface Card (NIC) communication of h...read more

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Computer Subject

Computer Networks

Data Link Layer

Data Link Layer in OSI Model

Last Updated: 19 September 2025

The data link layer is the second layer from the bottom in the OSI (Open System Interconnection) network architecture model. Responsible for the node-to-node delivery of d...read more

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Computer Networks

Data Link Layer

Advantages and Disadvantages of Tree Topology

Last Updated: 23 July 2025

Network topology is the systematic arrangement of the elements (such as links and nodes) within a communication network. A tree topology, or star-bus topology, is a hybrid...read more

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Computer Networks

Data Link Layer

What is Mesh Topology?

Last Updated: 23 July 2025

Mesh Topology is a network configuration where every device is interconnected with every other device, providing multiple route for data to travel. The nodes are connected...read more

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Computer Networks

Data Link Layer

What is Star Topology?

Last Updated: 23 July 2025

Star Topology is a network setup in which each device is connected to a central node called a hub. The hub manages the data flow between the devices. If one device wants t...read more

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Computer Subject

Computer Networks

Data Link Layer

Advantages and Disadvantages of Bus Topology

Last Updated: 23 July 2025

In computer network there are various topologies available. A Bus Topology is one of them. All of the devices in a bus topology network are linked together by a single cab...read more

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Computer Networks

Data Link Layer

Advantages and Disadvantages of Hybrid Topology

Last Updated: 23 July 2025

Pre-Requisite: Types of Network TopologyHybrid Topology is the first before going into the topic, we saw that topology may be a connection of varied links and nodes, commu...read more

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Computer Networks

Data Link Layer

Advantages and Disadvantages of ring topology

Last Updated: 23 July 2025

Ring Topology may be a network configuration where device connections create a circular data path. In this each device is connected to with its exactly two neighboring dev...read more

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Computer Networks

Data Link Layer

Types of Services provided by LLC

Last Updated: 15 July 2025

Prerequisite - Services provided by Data Link Layer Logical Link Control (LLC) is one of the uppermost layers of the IEEE 802 Protocol Reference Model. LLC basically provi...read more

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Computer Networks

Data Link Layer

Error Detection Code - Checksum

Last Updated: 07 October 2025

A checksum is an error detection method used by upper-layer protocols. It is considered to be more reliable than Longitudinal Redundancy Check (LRC), Vertical Redundancy C...read more

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Computer Networks

Data Link Layer

Point-to-Point Protocol (PPP) Encapsulation

Last Updated: 17 December 2025

Point-to-Point Protocol (PPP) is a Layer 2 WAN protocol that encapsulates network-layer packets for reliable, full-duplex communication over point-to-point links.Operates ...read more

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Computer Networks

Data Link Layer

Point-to-Point Protocol (PPP) Phase Diagram

Last Updated: 15 July 2025

Point-to-Point Protocol (PPP) was generally invented by Internet Engineering Task Force (IETF) simply to create and develop a data link protocol for point to point lines t...read more

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Computer Networks

Data Link Layer

Point-to-Point Protocol (PPP) Frame Format

Last Updated: 15 July 2025

Point-to-Point Protocol (PPP) is generally the default RAS protocol in Windows and is most commonly used protocol of data link layer that is required to encapsulate higher...read more

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Computer Networks

Data Link Layer

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