The network layer is the third layer of the OSI model and responsible for routing data packets. It includes routers, protocols, and algorithms for packet switching and QoS. IP addresses are used for routing information on the Internet. The network layer refers to layer 3 of the seven-layer Open Systems Interconnection (OSI) model for network […]
PCMCIA network cards are adapters that plug into a computer’s PCMCIA bus slot, commonly used to upgrade built-in network interfaces in laptops. Ethernet is the most common technology used. PCMCIA developed the initial standards for PCMCIA peripheral cards, including the 16-bit PC Card and 32-bit CardBus®. In the mid-2000s, the ExpressCard® emerged, which is based […]
Network latency is the delay in data transmission between two points, which can be measured by round-trip time. Factors contributing to latency include transmission medium, propagation distance, and hardware delays. Upgrading hardware can improve network performance. Network latency is simply defined as the time delay observed in the transmission of data from one point to […]
A net ionic equation shows only the substances that directly participate in a chemical reaction in an electrolyte solution, omitting non-participating ions called spectator ions. It simplifies the reaction to show only the actual reaction taking place. A net ionic equation is a form of chemical equation in which substances are represented by their ionic […]
A network switch directs traffic across a LAN, allowing computers to communicate and share resources. It operates in full-duplex mode, sending traffic discriminatively, making it superior to a hub. Anti-sniffing software can be installed to detect packet sniffers. Network switches increase in price with the number of ports they have. A broadband router with built-in […]
Network security is crucial for businesses to protect their computer systems from hackers and data loss. A multi-layered security system, managed by the system administrator, including firewalls and anti-malware programs, is essential. Communication between management, administrators, and employees is critical for balancing security concerns with job requirements. Breaches are costly, so a multi-pronged approach is […]
To install a network, hardware, software and cables are needed. Internet networks require an internet service provider. Different types of networks require different types of hardware and modems. Contact your ISP for a list of compatible network hardware. When performing a network installation, the steps may depend on the type of network you plan to […]
Network hubs connect computers in a LAN to share resources. They broadcast traffic to all machines, making them less secure. Switches are faster and more secure, while broadband routers have built-in security features. Hubs are being replaced by switches due to their lower cost. Network hubs are central components of local area networks (LANs). To […]
A network switch manages the sharing of multiple computers or networks on the same data connection. It directs data packets to the correct destination, allowing sharing of resources without degrading performance. There are four types of switches: unmanaged, managed, intelligent, and enterprise managed. Each has its strengths and weaknesses. A network switch is a device […]
Network management involves administration and maintenance of large networks, including security, routing, configuration, and accounting management. It uses various protocols and tools to ensure efficient functioning and financial stability. Network management is the higher-level administration and maintenance of large networks, often in areas such as computers or telecommunications, but not including user terminal equipment. It […]
PCMCIA network cards allow laptops to connect to the internet and LANs. They come in Ethernet and wireless formats, with three generations of cards. They are easily installed and can upgrade older laptops. The PCMCIA standard was replaced by ExpressCard in 2009. A PCMCIA network card, or PC Card, allows laptop computers to connect to […]
To become a .NET architect, one needs a post-secondary education in computer science or programming, Microsoft .NET certification, experience in developing applications for Microsoft servers, and a position in a .NET environment. The role requires teamwork, critical thinking, problem-solving skills, and ongoing education. Many people who work in the information technology industry as a Microsoft […]
The internet connects people and computers, and network cards allow computers to communicate with each other. They are necessary for both wired and wireless networks, and are easy to install. Wireless networks offer flexibility but require more security precautions. In the vast world of computers and technology, the internet serves as a lifeline. The World […]
A PCI network card can be installed in a desktop computer’s motherboard to connect to a wired or wireless network. Installation is simple, but may require software. Wired cards have Ethernet ports, while wireless cards have antennas and a light to indicate proper function. A PCI network card is a type of computer hardware that […]
A switch network diagram shows the connections between devices on a home network, with the ethernet switch as the central device. Additional devices may require another switch, and all computers must have a working ethernet adapter. Software applications can help create clear and understandable diagrams. A switch network diagram illustrates the use of a switch […]
Network forensics analyzes network traffic for internal and legal investigations and detects intruders for system security. It requires high processing speeds and storage space. It is used by ISPs, law enforcement, security companies, and IT personnel. It identifies suspicious activity and can be used for evidence in court. Intruder detection is part of a proactive […]
Customer Network Management (CNM) is the process of controlling and maintaining customer access to corporate networks. Effective management is critical to maintain network integrity, protect from unwanted intrusions, and provide the right mix of access privileges. CNM involves tools, interfaces, and deployment models. Research and feedback are essential in managing customer networks. Good managers recognize […]
Network flow control manages traffic congestion in communication networks using techniques for both circuit-based and packet-switched networks. Connection admission control is used for circuit networks, while packet-switched networks use buffer storage and window scaling in TCP networks. RS-232 discusses software-based XON-XOFF flow control and hardware-based transmission control lines. Network flow control is a means for […]
A network architect designs computer or telecommunications networks, creating blueprints and overseeing construction. A bachelor’s degree in computer science or electrical engineering is typical, as are certifications from companies like Cisco, Novell, and Nortel. Understanding software is also important. A network architect is the person responsible for designing a computer or telecommunications network. While many […]
A PCI network adapter connects to a motherboard using a PCI slot and is used for Ethernet or wireless connections. It is easy to install and can be used for wired or wireless networks. There are also USB network connectors available. A PCI network adapter is a device that can be installed inside a computer […]
