A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. Data sent through the internet, such as a web page or email, is in the form of data packets. A packet is typically forwarded from one router to another router through the networks that constitute an internetwork until it reaches its destination node.
A network switch is networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destination device.
Cisco Systems, Inc. is an American multinational technology conglomerate headquartered in San Jose, California, in the center of Silicon Valley. Cisco develops, manufactures and sells networking hardware, software, telecommunications equipment and other high-technology services and products. Through its numerous acquired subsidiaries, such as OpenDNS, Webex, Jabber and Jasper, Cisco specializes in specific tech markets, such as the Internet of Things (IoT), domain security and energy management. On January 25, 2021, Cisco reincorporated in Delaware.
The term virtual private network describes any technology that can encapsulate and transmit network data, typically Internet Protocol data, over another network. Such a system enables users to access network resources that may otherwise be inaccessible from the public internet. VPNs are frequently used in the information technology sector to provide access to resources for users that are not physically connected to an organization's network, such as telecommuting workers. VPNs are so named because they may be used to provide virtual access to a private network.
Cisco Internetwork Operating System (IOS) is a family of network operating systems used on many Cisco Systems routers and current Cisco network switches. Earlier, Cisco switches ran CatOS. IOS 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 QNX and Linux for use in Cisco products.
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.
Linux Professional Institute (LPI) offers three different certification tracks. The core certification program, Linux Professional, contains three different levels addressing distinct aspects of Linux system administration. The organization also offers an introductory Essentials program for beginners in Linux and open source, as well as an Open Technology track for professionals working with additional technologies such as DevOps and BSD.
Red Hat, an IBM subsidiary specializing in computer software, offers different level of certification programs, most of which specialize in system administration. Certifications can be validated through Red Hat webpage, and expire after 3 years.
Cisco Certifications are the list of the Certifications offered by Cisco Systems. There are four or 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 the specialist technician, sales, Business, data center certifications, CCAI certified instructor.
Middleton High School is a public high school in Tampa, Florida named in honor of George S. Middleton, an African American businessman and civic leader who moved to Tampa from South Carolina in the late 19th century. Middleton was established for black students in 1934 during the segregation era. The current facility opened in 2002 on North 22nd Street in East Tampa.
In computer networking, encapsulation is a method of designing modular communication protocols in which logically separate functions in the network are abstracted from their underlying structures by inclusion or information hiding within higher-level objects. In other words, encapsulation "takes information from a higher layer and adds a header to it, treating the higher layer information as data".
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.
The Dynamic Trunking Protocol (DTP) is a proprietary networking protocol developed by Cisco Systems for the purpose of negotiating trunking on a link between two VLAN-aware switches, and for negotiating the type of trunking encapsulation to be used. It works on Layer 2 of the OSI model. VLAN trunks formed using DTP may utilize either IEEE 802.1Q or Cisco ISL trunking protocols.
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.
Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface. Packet Tracer makes use of a drag and drop user interface, allowing users to add and remove simulated network devices as they see fit. The software is mainly focused towards Certified Cisco Network Associate Academy students as an educational tool for helping them learn fundamental CCNA concepts. Previously students enrolled in a CCNA Academy program could freely download and use the tool free of charge for educational use.
Information Technology Specialist or Information Systems Operator-Analyst is a Military Occupational Specialty (MOS) in the United States Army. Information Technology Specialists have the responsibility of maintaining, processing and troubleshooting military computer systems and operations.
The Cisco Certified Internetwork Expert, or CCIE, is a technical certification offered by Cisco Systems. The Cisco Certified Internetwork Expert (CCIE) and Cisco Certified Design Expert (CCDE) certifications were established to assist the industry in distinguishing the top echelon of internetworking experts worldwide and to assess expert-level infrastructure network design skills worldwide. These certifications are generally accepted worldwide as the most prestigious networking certifications in the industry. The CCIE and CCDE community has established a reputation of leading the networking industry in deep technical networking knowledge and are deployed into the most technically challenging network assignments. The expert-level certification program continually updates and revises its testing tools and methodologies to ensure and maintain program quality, relevance and value. Through a rigorous written exam and a performance-based lab exam, these expert-level certification programs set the standard for internetworking expertise.
The Computing Technology Industry Association (CompTIA) is an American non-profit trade association, issuing professional certifications for the information technology (IT) industry. It is considered one of the IT industry's top trade associations. Based in Downers Grove, Illinois, CompTIA issues vendor-neutral professional certifications in over 120 countries. The organization releases over 50 industry studies annually to track industry trends and changes. Over 2.2 million people have earned CompTIA certifications since the association was established.
HP Networking offers trainings, typically delivered in HP Authorized Trainings Centers (ATCs) by HP Certified Instructors (HPCI).
