In the computer security or Information security fields, there are a number of tracks a professional can take to demonstrate qualifications.
[Notes 1] Four sources categorizing these, and many other credentials, licenses, and certifications, are: Quality and acceptance vary worldwide for IT security credentials, from well-known and high-quality examples like a master's degree in the field from an accredited school, CISSP, and Microsoft certification, to a controversial list of many dozens of lesser-known credentials and organizations.
In addition to certification obtained by taking courses and/or passing exams (and in the case of CISSP and others noted below, demonstrating experience and/or being recommended or given a reference from an existing credential holder), award certificates also are given for winning government, university or industry-sponsored competitions, including team competitions and contests.
Microsoft 1 year *: you have to do a free refresh exam within 180 days before expiration.
if not done, the certificate expire otherwise it extends by 1 year.