How is the connection of multiple terminals to the serial interface simulated in Linux?

What will be an ideal response?

A classic multi-user environment can be implemented by connecting several terminals (dialog stations) -monitor and keyboard units -to the serial interface of a single computer.

You can still connect several terminals to the serial interface in a Linux system; however this is hardly ever done anymore. To simulate such serial terminals, virtual terminals were created in Linux. With virtual terminals, you can work in Linux as if you had several classic terminals available at the same time.

By default, six virtual terminals are available. You can access them by holding Ctrl+Alt+F1 to Ctrl+Alt+F6. When you switch to a virtual terminal, a login prompt appears.

You can determine the terminal currently being used from the ttyx number (tty1 - tty6) -tty is an abbreviation for teletype, which is another word for terminal). From the virtual terminals, Alt+F7 returns you to the graphical user interface.

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Here is a small program. Which of the statements about the variables is correct?

``` #include const double NUM = 2.9345358; double num = 3; double numTimes(int x); int main( ) { using namespace std; int value; cout << “Enter a value, I’ll multiply it by “ << NUM << endl; cin >> value; cout << “You entered “ << value << “ NUM times this is “ << numTimes(value) << endl; return 0; } double numTimes(int x) { double d; d = NUM * x; return d; ``` a) NUM is a global variable. b) num is a global constant. c) value is local variable in the main function d) d is a local variable in the numTimes function.

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Open-Exclusive Read-Only opens the database in both Exclusive and Read-Only modes

Indicate whether the statement is true or false

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In the accompanying figure, Item 1 points to the All Markers check box, which has been selected and accounts for three small square markers on the ____.

A. worksheet B. chart C. legend D. sparkline

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Which dynamic trunking mode should be configured if the intention is to have it actively attempt to form a trunk with a connected switch?

A) Dynamic B) Active C) Auto D) Desirable

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