Find the erroneous statement in the following: A. FTP is an abbreviation for "File Transfer Protocol" B. FTP makes use of two TCP connections in parallel A. FTP transmits precisely one file across the data connection. C. FTP sends its control information in-band. D. FTP sends exactly one file.

Find the erroneous statement in the following: A. FTP is an abbreviation for "File Transfer Protocol" B. FTP makes use of two TCP connections in parallel A. FTP transmits precisely one file across the data connection. C. FTP sends its control information in-band. D. FTP sends exactly one file.

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter6: Security Technology: Access Controls, Firewalls, And Vpns

Section: Chapter Questions

Problem 2RQ

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Question

Find the erroneous statement in the following:
A. FTP is an abbreviation for "File Transfer Protocol" B. FTP makes use of two TCP connections
in parallel A.
FTP transmits precisely one file across the data connection. C. FTP sends its control
information in-band. D. FTP sends exactly one file.

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Find the erroneous statement in the following: A. FTP is an abbreviation for "File Transfer Protocol" B. FTP makes use of two TCP connections in parallel A.FTP transmits precisely one file across the data connection. C. FTP sends its control information in-band. D. FTP sends exactly one file.
Q3: A / Draw a diagram showing the PDU messages exchange of writing a file of 950 bytes to the server, using TFTP protocol. Assume all messages are arrived correctly. B / List the command-reply message exchange sequence to get (read) a file of 950 bytes from the TFTP server. Assume the first block of data is corrupted and the ACK of the second block is not arrived. Other messages are arrived correctly.
1. Suppose a TCP connection is transferring a file of 5550 bytes. The first byte is numbered 10001. What are the sequence numbers for each segment if each carries 500 bytes? How many Segments will be there ?
Find the falsehood:FTP is File Transfer Protocol B. FTP requires two parallel TCP connectionsFTP transfers one file across the data link.
Identify the incorrect statement: A. FTP stands for File Transfer ProtocolB. FTP uses two parallel TCP connectionsC. FTP sends its control information in-bandD. FTP sends exactly one file over the data connection
TCP?
i need the answer quickly
Q: when a file is transferred between two computers two acknowledgments strategies are possible. In first one the file is chopped up like packets which are individually acknowledged by receiver but file transfer is whole acknowledged. In the second the packets are not acknowledged individually but entire file is acknowledged.Discuss the two approaches.
-Consider transferring an enormous file of L bytes from Host A to Host B. Assume an MSS of 400 bytes. a. What is the maximum value of L such that TCP sequence numbers are not exhausted? Recall that the TCP sequence number field has 4 bytes. b. For the L you obtain in (a), find how long it takes to transmit the file. Assume that a total of 66 bytes of transport, network, and data-link header are added to each segment before the resulting packet is sent out over a 100 Mbps link. Ignore flow control and congestion control so A can pump out the segments back to back and continuously.
A sender and a receiver are connected by two routers as shown. The bandwidth of each link is 1,000,000 Bytes/sec and the propagation delay for each link is 0.1 msec. A file size of 1000 bytes needs to be transferred from source to destination. Calculate the total time taken to transfer the file if message switching is used. enter only the value and not any units. For example, If your answer is 10.4 msec, just enter the value 10.4.
Consider the following scenario in which host A is sending a file to host B over a TCP connection. Assuming that the sequence number of the first data byte sent by A is 0 and every segment always includes 1000 bytes of data, excluding the TCP header. At some point of time, bytes up to 6400 have been written into the sender’s buffer. Bytes up to 4999 have been sent out but the segment which contains bytes 2000~2999 has not arrived at host B yet. At the receiver’s side, all bytes up to 3999 have been received except for bytes 2000~2999. Bytes up to 499 have been read from the buffer by the application. Assume that the maximum size of the sender’s buffer is large enough. Consider the sliding window algorithm in TCP and answer the following questions. 1) What are the values for LastByteAcked, LastByteSent, and LastByteWritten? 2) What are the values for LastByteRead, NextByteExpected, and LastByteRcvd? 3) Assuming that the maximum size of the receiver’s buffer is 4000 byte, what would…
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