14. Message syntax is typically defined by the arrangement of fields within a pr
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14. Message syntax is typically defined by the arrangement of fields within a protocol data unit (PDU) (one point) a. True b. False 15. Identify all of the following items that ARE functions of TCP. (Select more than one) a. Breaks application message stream into segments (PDU) b. Assigns a sequence number to the PDU c. Encrypts segments as requested d. Unencrypts segments if neded e. Reassembles segments into a message stream 16. Select the correct sequence of the TCP three-way handshake from the items below (Select only one) a. Source node sends SYN frame, Destination node sends SYN ACK frame, Source node sends SYN frame b. Master node transmit CTS (Clear to Send) frame to Source Node, Source node sends SYN frame, Destination node sends ACK frame c. Source node sends SYN frame, Destination node sends SYN ACK frame, Source node sends SYN frame, Destination node sends ACK frame 17. When using CSMA-CD, what sequence is performed after a collision occurs? (Select only one) a. Sender (A) and receiver (B) each transmit a "jam" message to all network nodes, nodes A and B wait a random period and listen for carrier, any node with shortest wait time begins transmission, this may be node B, C, D with their traffic, or node A retransmitting the damaged PDU b. Sender (A) and receiver (B) each transmit a "jam" message to all network nodes, nodes A and B wait a random period and listen for carrier, among all nodes only node A can transmit and it begins retransmission of damaged PDU 18. One method to encode messages is Unicode Text Format (UTF) and it is the data representation code of choice for international communications because it supports so many different human languages with between 65,000 and 100,000 characters. (one point) a. True b. False 19. Enter the three steps (in correct sequence) to convert analog voice to digital format. a. Pulse, Code and Modulate (PCM) b. Sample, Slice, Modulate c. Quantize, Sample, Encode d. Sample, Quantize, EncodeExplanation / Answer
14) TRUE. Message syntax is typically defined by the arrangement of fields in PDU.
15) (A), (B) and (E). TCP breaks up messages into PDUs, assign sequence number to PDU and reassembles the segments.
16) (C). The correct sequence is SYN-->SYN-ACK-->ACK.
17) (A). In CSMA/CD after a collision occurs, both sender and receiver transmit a "jam" message and then wait. Then after a back-off time any node with shortest waiting time starts the transmission.
18) TRUE. UTF encoding supports all human languages.
19) (D) The steps are sampling quantization and encoding in the sequential order.
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