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Luhn algorithm. The Luhn algorithm or Luhn formula, also known as the " modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [1]
CCNA (Cisco Certified Network Associate) is an entry-level information technology (IT) certification offered by Cisco Systems. CCNA certification is widely recognized in the IT industry as the foundational step for careers in IT positions and networking roles. [1] [2] Cisco exams routinely change in response to evolving IT trends. [3]
the second letter t is shifted by 2 (because the second letter C of the key means 2) yielding v; the third letter t is shifted by 20 (U) yielding n, with wrap-around; and so on; yielding the message ovnlqbpvt hznzouz. If the recipient of the message knows the key, they can recover the plaintext by reversing this process.
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 ...
In reality, caring for a tortoise can require a lot of space, time, and effort--even if the reptile is just a few inches long. Pet owner and animal advocate Chas regularly posts educational videos ...
The Mood and Feelings Questionnaire is a survey that measures depressive symptoms in children and young adults. It was developed by Adrian Angold and Elizabeth J. Costello in 1987, and validity data were gathered as part of the Great Smokey Mountain epidemiological study in Western North Carolina. [1] The questionnaire consists of a variety of ...
The Oxford–Liverpool Inventory of Feelings and Experiences(O-LIFE) is a questionnaire for measuring psychosis-proneness, principally schizotypy.[1] It was introduced in 1995 and has since been used in a variety of experimental and clinical studies. The O-LIFE is a tool with 104 items in the Yes/No response format, although a shorter version ...
Fitness proportionate selection, also known as roulette wheel selection, is a genetic operator used in genetic algorithms for selecting potentially useful solutions for recombination. In fitness proportionate selection, as in all selection methods, the fitness function assigns a fitness to possible solutions or chromosomes.