Ethernet is a media access method that is specified at the Data Link layer and uses specific Physical layer cabling and signalling techniques. It is important to be able to differentiate between the types of connectors that can be used to connect an Ethernet network together. I'll discuss the different unshielded twisted-pair cabling used today …
DWDM stands for Dense Wavelength Division Multiplexing. DWDM is a technology used to increase the capacity of fiber optics that results in faster transfers of data. What are fiber optics? Fiber optics are very thin and small fibers that are used to transmit data and light throughout a computer and network. How does DWDM affect …
802.11b is the standard that is popularly used for high speed wireless networks. The standard is set by IEEE (Institute of Electrical and Electronics Engineers) and uses a 2.4 gigahertz radio frequency. There are several standards that are in use today for wireless communication from one computer device to another; however 802.11b is cost effective, …
Faster connections to the Internet from phone lines are possible through a Digital Subscriber Line Access Multiplexer (abbreviated to DSLAM). The role of this network device is located in the telephone exchanges of providers for the services. The service works by taking advantage of the multiplexing techniques used to connect several Digital Subscriber Lines to …
Users can connect to a Linksys router manually by attaching an Ethernet cable from the router to a computer and typing 192.168.1.1 (the default IP address) in the web browser. This kind of connection is used to setup a router for the first time or troubleshoot problems when a wireless connection is not available. By …
Wireless Application Protocol (WAP) is a technical standard for accessing information over a mobile wireless network. A WAP browser is a web browser for mobile devices that use the protocol. Before the introduction of WAP, mobile service providers had limited opportunities to offer interactive data services, but required interactivity to support Internet and applications such …
A rollover cable is a network cable that connects a computer terminal to a network router’s console port. It is also referred to as a Cisco console cable and is normally flat and light blue so as to distinguish it from other network cable types. The pin-outs on one end of the cable are reversed …
The DNS root servers are thirteen DNS server clusters which are responsible for delegating DNS requests to the top level domain (TLD) nameservers. The DNS Root Servers A.ROOT-SERVERS.NET. Operator: VeriSign Naming and Directory Services IP Address: 198.41.0.4 B.ROOT-SERVERS.NET. Operator: Information Sciences Institute IP Address: 192.228.79.201 C.ROOT-SERVERS.NET. Operator: Cogent Communications IP Address: 192.33.4.12 D.ROOT-SERVERS.NET. Operator: University …
The Routing Information Protocol (RIP) is the IGP standard protocol that is used on Local Area Networks (LANs). It helps to ensure a higher degree of network stability by quickly re-routing network packets if one of the network connections goes offline. When the RIP is active on a network, users experience little to no service …
The ISO, International Organization for Standardization is the Emily Post of the network protocol world. Just like Ms. Post, who wrote the book setting the standards or protocols for human social interaction, the ISO developed the OSI model as the precedent and guide for an open network protocol set. Defining the etiquette of communication models, …