A wireless network is a computer network that uses wireless data connections between network nodes.
Wi-Fi is a family of radio technologies that is commonly used for the wireless local area networking (WLAN) of devices which is based around the IEEE 802.11 family of standards. Wi‑Fi is a trademark of the Wi-Fi Alliance, which restricts the use of the term Wi-Fi Certified to products that successfully complete interoperability certification testing. Wi-Fi uses multiple parts of the IEEE 802 protocol family and is designed to seemlessly interwork with its wired sister protocol Ethernet.
Wireless communication, or sometimes simply wireless, is the transfer of information or power between two or more points that are not connected by an electrical conductor. The most common wireless technologies use radio waves. With radio waves distances can be short, such as a few meters for Bluetooth or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mice, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications include the use of other electromagnetic wireless technologies, such as light, magnetic, or electric fields or the use of sound.
Multichannel Multipoint Distribution Service (MMDS), formerly known as Broadband Radio Service (BRS) and also known as Wireless Cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception.
Wi-Fi Alliance is a non-profit organization that promotes Wi-Fi technology and certifies Wi-Fi products for conformity to certain standards of interoperability. Not every IEEE 802.11-compliant device is submitted for certification to the Wi-Fi Alliance, sometimes because of costs associated with the certification process. The lack of the Wi-Fi logo does not necessarily imply a device is incompatible with Wi-Fi devices.
IEEE 802.16 is a series of wireless broadband standards written by the Institute of Electrical and Electronics Engineers (IEEE). The IEEE Standards Board established a working group in 1999 to develop standards for broadband for wireless metropolitan area networks. The Workgroup is a unit of the IEEE 802 local area network and metropolitan area network standards committee.
IEEE 802.22, is a standard for wireless regional area network (WRAN) using white spaces in the television (TV) frequency spectrum.
The development of the IEEE 802.22 WRAN standard is aimed at using cognitive radio (CR) techniques to allow sharing of geographically unused spectrum allocated to the television broadcast service, on a non-interfering basis, to bring broadband access to hard-to-reach, low population density areas, typical of rural environments, and is therefore timely and has the potential for a wide applicability worldwide. It is the first worldwide effort to define a standardized air interface based on CR techniques for the opportunistic use of TV bands on a non-interfering basis.
CCNA is an information technology (IT) certification from Cisco Systems.
CCNA certification is an associate-level Cisco Career certification.
Cellular South Inc. d.b.a. C Spire headquartered in Ridgeland, Mississippi, is the sixth largest wireless provider in the United States and the largest privately held wireless provider in the United States. The company is a full-service provider of transport, Internet and telecom services. C Spire has approximately 1,200,000 customers in Mississippi, the Memphis Metropolitan Area, the Florida Panhandle, and parts of Alabama including Mobile. The company also holds 700 MHz and AWS licenses covering most of Tennessee and Alabama, though it has not yet extended service to these areas. On September 20, 2011 Cellular South, Inc. filed a trademark application for the C Spire Wireless name and two days later announced that it would market its services under the C Spire Wireless brand effective September 26. C Spire Wireless is owned by the holding company Telapex, Inc., which also owns Telepak Networks, Inc., and several smaller Mississippi telecoms.
Z-Wave is a wireless communications protocol used primarily for home automation. It is a mesh network using low-energy radio waves to communicate from appliance to appliance, allowing for wireless control of residential appliances and other devices, such as lighting control, security systems, thermostats, windows, locks, swimming pools and garage door openers. Like other protocols and systems aimed at the home and office automation market, a Z-Wave system can be controlled via the Internet from a smart phone, tablet or computer, and locally through a smart speaker, wireless keyfob, or wall-mounted panel with a Z-Wave gateway or central control device serving as both the hub controller and portal to the outside. Z-Wave provides the application layer interoperability between home control systems of different manufacturers that are a part of its alliance. There are a growing number of interoperable Z-Wave products; over 1,700 in 2017, and over 2,600 by 2019.
Cisco Certifications are the list of the Certifications offered by Cisco Systems. There are four or five(path to network designers) levels of certification: Entry (CCENT), Associate (CCNA/CCDA), Professional (CCNP/CCDP), Expert (CCIE/CCDE) and recently Architect, as well as nine different paths for the specific technical field; Routing & Switching, Design, Industrial Network, Network Security, Service Provider, Service Provider Operations, Storage Networking, Voice, Datacenter and Wireless.
There are also a number of the specialist technician, sales, Business, data center certifications, CCAI certified instructor.
The following outline is provided as an overview of and topical guide to information technology:
Professional certifications in computer technology are non-degree awards made to those who have achieved qualifications specified by a certifying authority. Depending on the particular certification, qualifications may include completing a course of study, proof of professional accomplishments, achieving a specified grade on an examination. The intention is to establish that an individual holding a certification is technically qualified to hold certain types of position within the field.
The Certified Wireless Network Administrator (CWNA) is a foundation level certification from the CWNP that measures the ability to administer any wireless LAN. A wide range of topics focusing on the 802.11 wireless LAN technology are covered in the coursework and exam, which is vendor neutral.
The Certified Wireless Security Professional (CWSP) is an advanced level certification that measures the ability to secure any wireless network.
The Wireless Gigabit Alliance was a trade association that developed and promoted the adoption of multi-gigabit per second speed wireless communications technology "WiGig" operating over the unlicensed 60 GHz frequency band. The alliance was subsumed by the Wi-Fi Alliance in March 2013.
