Here at 21 Training we believe in creating a supportive friendly learning environment allowing you to Aspire to be the person you want to become. Evolve and develop your skills with a range of nationally recognised qualifications. Whether you are a School leaver a Job Seeker an Employer or an Employee we will have the programme to help you Achieve your dream career.
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dnscheck is a network diagnostic tool used that works by sending an Internet Control Message Protocol (ICMP) Echo Request to a specified interface on the network and waiting for a reply.
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