Reading Time-approximately: 4 minutesA MAC address and an IP address each identify network devices, but they do the job at different levels. Explore the differences between the two and learn why both are necessary. By John Burke and Chris Partsenidis Every computer or device on the internet has two types of addresses: its physical address and its internet address. The physical address —
Reading Time-approximately: 4 minutesWireless LAN integration means upgrading wired networks with new equipment and traffic prioritization to avoid bottlenecks between the networks and provide QoS for wireless multimedia applications, including WLAN voice and video. By Lisa Phifer In the first part of this series, we discussed how to make the business case for integrated wired and wireless LANs. In this tip, learn how to
Reading Time-approximately: 4 minutesMany installers make the mistake of treating 802.11 WLANs just like Ethernet, placing access points (APs) in locations that facilitate outsider access to corporate networks. By Tekmart Enterprise Hardware Support But, from a security perspective, WLANs should be treated like the Internet — a network composed of trusted and untrusted users. This tip offers network topology and physical positioning recommendations
Reading Time-approximately: 3 minutesAlthough a router, switch and hub all help direct network traffic, the devices transmit packets in different ways. Discover the differences among these network devices. By Andrew Froehlich While routers, switches and hubs are all network devices, they all serve different purposes. A network hub is a node that broadcasts data to every computer or Ethernet-based device connected to it. A switch
Reading Time-approximately: 3 minutesEven though they have common traits, there is a difference between a Layer 3 switch and a router. Each plays a key role in making sure packets get sent to their proper destination. By Andrew Froehlich To determine the difference between a Layer 3 switch and a router, it’s helpful to understand how routing works in an enterprise network. Routing
Reading Time-approximately: 2 minutesWhile VLANs are a type of subnet, they have their own unique capabilities and characteristics that differentiate them from subnets. However, the OSI model plays a major role in both. By Andrew Froehlich A prevailing question that many new network administrators ask is the difference between virtual LANs — or VLANs — and IP subnetworks, or subnets. While instances occur
Reading Time-approximately: 2 minutesBy Tekmart Africa Enterprise Support Hard drives that come with the Serial Attached SCSI (SAS) interface are designed to handle high-performance enterprise requirements. These drives offer the benefits of backward compatibility with SCSI interfaces. They also offer interoperability with SATA drives. This allows them to bring a perfect mix of flexibility and cost-effectiveness to enterprises. SAS 6Gbps hard drives are suitable
Reading Time-approximately: 8 minutesNetwork design tools help architects map out the company infrastructure but only with the right product. Explore these eight vendors and their tools to make the right buy. By Andrew Froehlich Network architects must have the right tools on hand to create a manual network diagram. While automated tools can dynamically build maps of existing network infrastructures, architects use vector graphic tools
Reading Time-approximately: 7 minutesRAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device’s processor. Posted by: Margaret Rouse WhatIs.com Contributor(s): Kevin Ferguson, Stacey Peterson and Rodney Brown RAM is the main memory in a computer. It is much faster to read from and write to than other
Reading Time-approximately: 3 minutesEven though vendors refer to flash memory and conventional RAM — the main memory of your PC or server — as solid-state memory, these two memory types are significantly different. By Erin Sullivan and Rodney Brown When discussing flash memory vs. RAM, you might be inclined to lump them together based on their similarities. While both technologies are made up of solid-state
What is COVID-19?
On 31 December 2019, the World Health Organization (WHO) reported a cluster of pneumonia cases in Wuhan City, China. ‘Severe Acute Respiratory Syndrome Coronavirus 2’ (SARS-CoV-2) was confirmed as the causative agent of what we now know as ‘Coronavirus Disease 2019’ (COVID-19). Since then, the virus has spread to more than 100 countries, including South Africa.
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