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Cisco Certifications are the list of the Certifications offered by Cisco Systems.There are four to five (path to network designers) levels of certification: Associate (CCNA/CCDA), Professional (CCNP/CCDP), Expert (CCIE/CCDE) and recently, Architect (CCAr: CCDE previous), as well as nine different paths for the specific technical field; Routing & Switching, Design, Industrial Network, Network ...
CISSP ( Certified Information Systems Security Professional) is an independent information security certification granted by the International Information System Security Certification Consortium, also known as ISC2. As of July, 2022, there were 156,054 ISC2 members holding the CISSP certification worldwide. [1]
CCNA ( Cisco Certified Network Associate) is an information technology (IT) certification from Cisco Systems. CCNA certification is an associate-level Cisco Career certification. [1] Cisco exams have changed several times in response to changing IT trends. [2] In 2020, Cisco announced an update to its certification program that "Consolidated ...
VLAN hopping is a computer security exploit, a method of attacking networked resources on a virtual LAN (VLAN). The basic concept behind all VLAN hopping attacks is for an attacking host on a VLAN to gain access to traffic on other VLANs that would normally not be accessible. There are two primary methods of VLAN hopping: switch spoofing and ...
The table below lists information technology initialisms and acronyms in common and current usage. These acronyms are used to discuss LAN, internet, WAN, routing and switching protocols, and their applicable organizations. [1] [2] [3] The table contains only current, common, non-proprietary initialisms that are specific to information technology.
A Linux-based system is a modular Unix-like operating system, deriving much of its basic design from principles established in Unix during the 1970s and 1980s. Such a system uses a monolithic kernel, the Linux kernel, which handles process control, networking, access to the peripherals, and file systems.
Network interface device. In telecommunications, a network interface device ( NID; also known by several other names) is a device that serves as the demarcation point between the carrier's local loop and the customer's premises wiring. Outdoor telephone NIDs also provide the subscriber with access to the station wiring and serve as a convenient ...
In computer networking, Point-to-Point Protocol ( PPP) is a data link layer (layer 2) communication protocol between two routers directly without any host or any other networking in between. It can provide loop detection, authentication, transmission encryption, [1] and data compression . PPP is used over many types of physical networks ...
Frame check sequence. Structure of an Ethernet packet, including the FCS that terminates the Ethernet frame [1] A frame check sequence ( FCS) is an error-detecting code added to a frame in a communication protocol. Frames are used to send payload data from a source to a destination.
Weighted random early detection. Weighted random early detection ( WRED) is a queueing discipline for a network scheduler suited for congestion avoidance. [1] It is an extension to random early detection (RED) where a single queue may have several different sets of queue thresholds. Each threshold set is associated to a particular traffic class .