A double is best used for numbers that are real, as in they have a decimal. Int is best used for numbers that are whole, as in no decimal. Strings are best used, as in the example you gave, when you have to represent a piece of information that isn’t strictly numbers
The answer is firewall. It is a network security device that observes inbound and outbound network traffic and chooses whether to allow or block specific traffic based on a well-defined set of security rules. Firewalls have been a first line of protection in network security for over 25 years. The firewall present a barrier between measured and secured internal networks that can be trusted and untrusted outside networks, for example the Internet. A firewall can be software, hardware, or even both.
I'd go for (C) similarly but not exactly sizedBasically, to explain an orifice tube in Layman’s context, it
is a car’s air conditioning system and is the exact place where the cold
happens. Not all orifice tubes are standard sized and this means that different
model vehicles use different sizes. These tubes are often color-coded for easy
identification.
