What is the role of ARP in computer networking, and why is it essential for communication between hosts on a network?
Address Resolution Protocol (ARP) plays a crucial role in computer networking by mapping IP addresses to MAC addresses. In a network, hosts communicate using IP addresses, which are logical addresses assigned to devices for network communication. However, at the data link layer, devices use MAC addresses to identify each other. The ARP protocol bridges this
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Address Resolution Protocol, Introduction to ARP, Examination review
What are the different methods used by switches to handle frames, and how do they impact network efficiency and error checking?
Switches are essential devices in computer networking that operate at the data link layer (Layer 2) of the OSI model. They are responsible for forwarding data frames within a local area network (LAN) based on the Media Access Control (MAC) addresses. Switches use various methods to handle frames efficiently, impacting network performance and error checking
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Switching, How switching works, Examination review
How do hubs differ from switches in terms of network functionality and data processing capabilities?
Hubs and switches are both networking devices used to connect multiple devices in a Local Area Network (LAN). However, they differ significantly in terms of network functionality and data processing capabilities. Hubs operate at the physical layer (Layer 1) of the OSI model. They are essentially multi-port repeaters, which means they broadcast data packets to
What is the significance of the Data Link layer in establishing logical links between devices on the same network segment, and how does it contribute to communication using protocols like Ethernet and MAC addresses?
The Data Link layer is the second layer of the OSI (Open Systems Interconnection) model, which is a conceptual framework used to understand how different networking protocols interact. The OSI model consists of seven layers, each responsible for specific functions in enabling communication between devices on a network. The significance of the Data Link layer
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, OSI Model, Introduction to the OSI Model, Examination review
Describe the role of switches and hubs in a network, and explain why switches are preferred over hubs in modern networking.
Switches and hubs are fundamental components in computer networking that facilitate the transfer of data packets between devices within a network. Both devices operate at the data link layer of the OSI model and play crucial roles in directing traffic within a network. However, there are significant differences between switches and hubs in terms of
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Introduction, Introduction to networking, Examination review
The Wi-Fi access points can be best compared to switches in wired networks?
Wi-Fi access points and switches are both essential components in computer networks, but they serve different purposes and operate at different layers of the network architecture. While they share some similarities, it is important to understand their distinct functionalities and how they contribute to the overall network infrastructure. A switch is a networking device that
- Published in Cybersecurity, EITC/IS/CNF Computer Networking Fundamentals, Physical networks, Cabling devices
In the OSI model can all layers communicate directly with each other?
In the OSI (Open Systems Interconnection) model, the layers are designed to provide a modular and hierarchical structure for network communication. Each layer has specific functions and responsibilities, and these layers work together to facilitate communication between different devices on a network. However, not all layers in the OSI model can communicate directly with each