Computers process data under the control of sets of instructions called ________.

(a) logical units.
(b) input devices.
(c) computer programs.
(d) random-access memory.

(c) computer programs.

Computer Science & Information Technology

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The process by which two parties can exchange keys over an unsecure medium is called a_______ protocol.

a) key-exchange. b) key-agreement. c) public-key. d) None of the above.

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Computer Science & Information Technology

namespace definitions are different from class definitions because:

a. namespace definitions do not end in semicolons. b. namespace definitions are not delimited by braces {}. c. namespaces cannot contain functions. d. namespaces cannot contain variables.

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Computer Science & Information Technology

Answer the following statements true (T) or false (F)

1. During name resolution, nested namespaces behave like nested blocks. 2. A namespace is just a class with all the folderol stripped off. 3. Namespaces can be defined in pieces across several files. 4. A namespace grouping requires a semicolon after the closing curly brace. 5. The output from the following code is “function”. (The code will compile and run.) ``` #include using namespace std; namespace { char c_string[ 10 ] = "namespace"; } void output() { char c_string[ 10 ] = "function"; cout << c_string << endl; // which c_string? //other code } int main() { output(); } ```

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Computer Science & Information Technology

____ is similar to PGP and runs on Windows, UNIX, and Linux operating systems.

A. SNMPv3 B. SSH C. IPsec D. GPG

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Computer Science & Information Technology