A router is a computer and networking device that forwards data packets between computer networks, including internetworks such as the global Internet.
Cisco Systems, Inc. is an American multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware, software, telecommunications equipment and other high-technology services and products. Cisco specializes in specific tech markets, such as the Internet of things (IoT), domain security, videoconferencing, and energy management with leading products including Webex, OpenDNS, Jabber, Duo Security, Silicon One, and Jasper.
An IT administrator, system administrator, sysadmin, or admin is a person who is responsible for the upkeep, configuration, and reliable operation of computer systems, especially multi-user computers, such as servers. The system administrator seeks to ensure that the uptime, performance, resources, and security of the computers they manage meet the needs of the users, without exceeding a set budget when doing so.
The Internetworking Operating System (IOS) is a family of proprietary network operating systems used on several router and network switch models manufactured by Cisco Systems. The system is a package of routing, switching, internetworking, and telecommunications functions integrated into a multitasking operating system. Although the IOS code base includes a cooperative multitasking kernel, most IOS features have been ported to other kernels, such as Linux and QNX, for use in Cisco products.
This page provides an index of articles thought to be Internet or Web related topics.
A Cisco Certified Network Professional (CCNP) is a person in the IT industry who has achieved the professional level of Cisco Career Certification.
CCNA is an information technology (IT) certification from Cisco Systems. CCNA certification is an associate-level Cisco Career certification.
Catalyst is the brand for a variety of network switches, wireless controllers, and wireless access points sold by Cisco Systems. While commonly associated with Ethernet switches, a number of different types of network interfaces have been available throughout the history of the brand. Cisco acquired several different companies and rebranded their products as different versions of the Catalyst product line. The original Catalyst 5000 and 6000 series were based on technology acquired from Crescendo Communications. The 1700, 1900, and 2800 series Catalysts came from Grand Junction Networks, and the Catalyst 3000 series came from Kalpana in 1994.
A metropolitan-area Ethernet, Ethernet MAN, carrier Ethernet or metro Ethernet network is a metropolitan area network (MAN) that is based on Ethernet standards. It is commonly used to connect subscribers to a larger service network or for internet access. Businesses can also use metropolitan-area Ethernet to connect their own offices to each other.
Cisco Certifications are the list of the Certifications offered by Cisco Systems. There are four to five levels of certification: 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 specialist technicians, sales, Business, data center certifications and CCAI certified instructors.
A computer repair technician is a person who repairs and maintains computers and servers. The technician's responsibilities may extend to include building or configuring new hardware, installing and updating software packages, and creating and maintaining computer networks.
Operations, administration, and management or operations, administration, and maintenance are the processes, activities, tools, and standards involved with operating, administering, managing and maintaining any system. This commonly applies to telecommunication, computer networks, and computer hardware.
Omnipeek is a packet analyzer software tool from Savvius, a LiveAction company, for network troubleshooting and protocol analysis. It supports an application programming interface (API) for plugins.
Protocol pipelining is a technique in which multiple requests are written out to a single socket without waiting for the corresponding responses. Pipelining can be used in various application layer network protocols, like HTTP/1.1, SMTP and FTP.
Nortel Certifications are IT professional certifications for Nortel products and IEEE standard technologies. There were two major levels of certification, Specialist and Expert. Within each level were three sublevels; technology, support, and design. The certification exams were administered at Prometric testing centers. Various training courses were held by Nortel regional training partners, such as Global Knowledge. As Nortel began to exit certain businesses and divest itself, they retired various certification training programs and exams. They retired the GSM-related programs in March 2008, Optical and Carrier VoIP programs in September 2009, and lastly the Enterprise programs in November 2010.
Apple certification programs are IT professional certifications for Apple Inc. products. They are designed to create a high level of technical proficiency among Macintosh service technicians, help desk support, technical support, system administrators, and professional users. Apple certification exams are offered at Prometric testing centers and Apple Authorized Training Centers, as well as online through Pearson Vue.
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 Network Expert (CWNE) is the highest level certification in the CWNP program started in 2001 by Planet3 Wireless. It certifies the ability to design, install, secure, optimize and troubleshoot IEEE 802.11 wireless networks.
The Cisco Certified Entry Networking Technician (CCENT) certification was the first stage of Cisco's certification system. The certification was retired on 24 February 2020. The CCENT certification was an interim step to Associate level or directly with CCNA and CCDA certifications. While the CCENT covered basic networking knowledge; it did not get involved with the more intricate technical aspects of the Cisco routing and switching and network design. The certification validated the skills essential for entry-level network support positions. CCENT qualified individuals have the knowledge and skill to install, manage, maintain and troubleshoot a small enterprise branch network, including network security. The CCENT curriculum covered networking fundamentals, WAN technologies, basic security, routing and switching fundamentals, and configuring simple networks. The applicable training was the Cisco ICND1 and the exam was, costing $165 retail. The certification was valid for 3 years.
