Q. A _______ adds signals from different sources to create a single signal.

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Q. A _______ changes the format of a high-bandwidth video signal to a lower quality narrow-bandwidth signal.

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Q. An RTP packet is encapsulated in _______.

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Q. When there is more than one source, the _______ identifier defines the mixer.

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Q. What is the port number of the HTTP ?

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Q. What is the port number of the SMTP ?

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Q. Using POP3, the e-mails are stored at .................

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Q. Protocol used for electronic mail?

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Q. To access e-mails from any machine and anywhere, we use ................

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Q. SMTP is used to transfer ..............

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Q. Using IMAP, the e-mails are stored at ....................

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Q. What is the port number for (Post Office Protocol) POP3?

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Q. Port number for ECHO?

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Q. What is the port number for SSH Remote login service?

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Q. PPP provides a protocol for bringing lines up, testing them, negotiating options, and bringing them down again gracefully when they are no longer needed. This protocol is known as:

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Q. PPP handles ....................

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Q. What is the port number for (File Transfer Protocol - Control) FTP?

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Q. Port number for (Secure Shell) SSH?

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Q. The program that accepts the commands for composing, receiving and replying to messages, as well as for manipulating mail boxes is .....................

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Q. A file is being transferred. The time required actually is 6- hours. The mean time between crashes is 2-hours. The time required for the transfer is hours if synchronization is not provided.

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