An optical isolator is a passive magneto-optic device that makes travel of light unidirectionally. The operation of the device is based on the Faraday effect. It is used in applications to avoid unwanted feedback to the system using the optical isolator. Optical isolators are also known as optoisolators, optocouplers and photocouplers.
Canonical name (CNAME) is a record in the DNS database that indicates the true host name of a computer associated with its aliases. It is essential when running multiple services from a single IP address.
A canonical name (CNAME) is a properly denoted host name of computers or a network server. CNAMEs specify an alias or nickname for the canonical host name record in domain name systems.
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