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In the Perl programming language, variables begin with which of the following characters?

Early Windows OSs used which of the following programs loaded into memory to interact with a network resource or device?

What TCP flag is responsible for delivering data directly and immediately to an application?

What type of IDSs/IPSs monitors activity on network segments by sniffing traffic as it flows over the network and alerting a security administrator when something suspicious occurs?

Which of the following defines how data is placed on a carrier signal?

Which type of device monitors a network’s hardware so that security administrators can identify attacks in progress and stop them?

What specific type of spread spectrum modulation allows data to hop to other frequencies to avoid interference that might occur over a frequency band?

What is the HTTP method that retrieves data by URI?

Red Hat and Fedora Linux use what command to update and manage their RPM packages?

Which of the following mathematical operators in the C programming language increments the unary value by 1?