Which of the following is considered a vital feature of instant messaging services for a business?

a. Data backup
b. Remote system administration
c. Asynchronous communication
d. Ability to work on multiple platforms

d. Ability to work on multiple platforms
Instant messaging (IM) is a one-to-one conversation in which one computer communicates with another for the purpose of exchanging text, images, and more. Important features to look for in instant messaging applications for a business setting include the ability to work on Windows and Mac computers and laptops as well as on Android and iPhone smartphones, strong encryption of messages, and the ability to set up and make conference calls from within the application.

Computer Science & Information Technology

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What does this program do?

``` // Ex. 8.14: ex08_14.cpp // What does this program do? #include using namespace std; int mystery2(const char*); // prototype int main() { char string1[80]; cout << "Enter a string: "; cin >> string1; cout << mystery2(string1) << endl; } // What does this function do? int mystery2(const char* s) { unsigned int x; for (x = 0; *s != '\0'; ++s) { ++x; } return x; } ```

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Computer Science & Information Technology

The first portion of the URL indicates the ____.

A. domain name B. file extension C. machine name D. protocol

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Computer Science & Information Technology