Day: September 22, 2021

  1. Communication Media and Data Links: The unit of transmission rate is bps (Bits Per Second). Strictly speaking, the speed at which signals travel through any transmission medium is constant. Therefore, even if data links have different transmission rates, the transmission speed will not fluctuate (because the speed of light and electric current is constant). Transmission rate is also called bandwidth. The greater the bandwidth, the stronger the network’s transmission capability. In addition, the actual transmission rate between hosts

Introduction When learning networking, hands-on labs are unavoidable — yet most people don’t have real hardware and can’t build a real environment. Fortunately, the networking field offers a wealth of simulators that can faithfully emulate more than 90% of functionality, achieving a level of realism that is hard to distinguish from the real thing. This is good news for network learners. Below we introduce the simulators most commonly used by network engineers. Cisco or Huawei? Before we begin, let’s answer