Networking Questions Set 2:
What does 'TTL' stand for?
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The data transfer mode of FTP, in which all the fragmentation is done by TCP, is ________
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What is the expansion of the acronym SMTP?
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Anarkali digitally signs a message and sends it to Salim. Verification of the signature by Salim requires
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A data communication system spanning states, countries, or the whole world is called a ____
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In a network, if P is the only packet being transmitted and there was no earlier transmission, which of the following delays could be zero?
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For the IEEE 802.11 MAC protocol for wireless communication, which of the following statements is/are TRUE?
I. At least three non-overlapping channels are available for transmissions. II. The RTS-CTS mechanism is used for collision detection. III. Unicast frames are ACKed.
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Which of the following is true of signature-based intrusion detection systems (IDSes)?
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Consider a socket API on Linux machine that supports UDP socket. A connected UDP socket is a UDP socket on which connect function has already been called. Which of the following statements is/are correct ?
I. A connected UDP socket can be used to communicate with multiple peers simultaneously. II. A process can successfully call connect function again for an already connected UDP socket.
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Consider a LAN with four nodes S1, S2, S3 and S4. Time is divided into fixed-size slots, and a node can begin its transmission only at the beginning of a slot. A collision is said to have occurred if more than one node transmits in the same slot. The probabilities of a node generating a frame in a time slot are 0.1 for S1, 0.2 for S2, 0.3 for S3, and 0.4 for S4. The probability of sending a frame in the first slot without any collision by any of these four stations is
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