What is the difference between blacklist and whitelist?
Have you heard that phones have blacklists and whitelists of numbers? Explain how they differ?
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The black list is a list of numbers from which you cannot be reached, but you will be available to everyone else. The white list is a list of numbers from which you can be called, and for all other numbers you will not be available. Depending on the situation, one of them is https://opay.com.ng/page-aston-martin-to-move-to-electric-cars-by-2026 preferable to the other. White and black lists can be implemented as a function in a mobile phone, as well as a service from the operator.