O FalseQUESTION 16Which of the following is True or False:Bus topology is a form of nearest neighbour, the network is cheap but the time it takes to communicate withother computers depends on distance between computers.O TrueO FalseQUESTION 17Which of the following is True or False:"1000100 0000000000000000000100001" contains two parts, op code and operand and it refers to aninstruction in machine language.O TrueO FalseClick Save and Submit to. save and submit. Click Save All Answers to save all answers.MIDA QUESTION 18Which of the following is True or False:One of the advantages of database, thereâ s no telling if we will obtain anything meaningful in data mining.O TrueO FalseQUESTION 19Which of the following is True or False:IAAS provides a set of services that make deploying software much simpler and customers deploy applicationswithout the complexity.O TrueO FalseClick Save and Submit to save and submit. Click Save All Answers to save all answers.SHIDA

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Which of the following is True or False:Bus topology is a form of nearest neighbour, the network is cheap but the time it takes to communicate with other computers depends on distance between computers. O True O False

Which of the following is True or False:Bus topology is a form of nearest neighbour, the network is cheap but the time it takes to communicate with other computers depends on distance between computers. O True O False

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter2: Problem Solving Using C++using

Section2.3: Data Types

Problem 9E: (Practice) Although the total number of bytes varies from computer to computer, memory sizes of...

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In computing, time scales usually store the current time as the number of seconds that have elapsed since the beginning of some “epoch”, which is an arbitrary date that determines the starting time. For example, the Network Time Protocol (NTP) uses an epoch of midnight on January 1st (GMT) 1900. The elapsed seconds since the epoch are stored in a 32-bit unsigned integer. In many embedded systems, it is more practical to just consider the current year. In this case, the format is often modified such that 0 corresponds to midnight on January 1stof the current year. If a clock that was initialized to 0 at midnight of 1 January 2020 currently has a count of 3665044 seconds, what day and time does it represent? (For example, your answer should be in the form June 6, 8:47:12 am) Show your work
Computer Science To answer this question, you may need to write a small program. Consider the following case: current cwnd value is 1000 bytes and 1 MSS is 10 bytes (=1 TCP packet carries 10 bytes of payload). With the basic formula, after 1 RTT, the congestion window would be updated to 1010 bytes (1000 + 10). What would be the value of window if ACK clocking is used? It would be a non-integer number, so give value including only two digits after comma
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10. The technique of temporarily delaying outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is known as a. Bit stuffing b. Piggy backing c. Pipelining d. Broadcasting
**Please do C****C IS different from B** a. Compute CBC-MAC for a message of 16 bits, “8642” (in Hexa). Assume a block size of 8 bits with an IV=F1 (in hexa). For simplicity, assume the encryption to be a simple XOR of the key with the plaintext. Let the encryption key be B4 (in Hexa). (Hint: Divide the message into blocks of 8 bits each; XOR each block with the previous cipher output; then encrypt this with the key. For the first block, XOR it with IV. Details in pages 325-326 Ch.12 of the textbook) b. Suppose Alice computes the Secret prefix MAC (page 322: secret prefix MAC(x) = h(key || x)) for the message ”AM” (in ASCII) with key “G” (in ASCII) that both Alice and Bob know. The hash function that is used is h(x1x2x3)= g(g(x1 XOR x2) XOR x3 ) where each xi is a character represented as 8 bits, and g(x) is a 8-bit string that is equal to the complement of bits in x. For example, g(10110011) = 01001100. The MAC is 8 bits. (8-bit ASCII representation of the characters is given…
) s ®%74 I, 10.100.100.1is a valid host address * QO Yes O No -4 0 G 9:09 Which is not true about Class C addresses (select more than answer) * the first byte between 192 - 224 the number of hosts is less than subnets Many addresses are wasted the address space is 53687191 address the first byte starts with 110 Map the following addresses to its right class * 192.168.6.7 128.0.10.10 127.0.100.100 O O 'O 190.0.255.255 is a Class B special address * QO True Q False Back Next Never submit passwords through Google Forms, O O © O @) @ This form was created Inside of Alnukhba University College. Report Abuse Google F
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a. Compute CBC-MAC for a message of 16 bits, “8642” (in Hexa). Assume a block size of 8 bits with an IV=F1 (in hexa). For simplicity, assume the encryption to be a simple XOR of the key with the plaintext. Let the encryption key be B4 (in Hexa). (Hint: Divide the message into blocks of 8 bits each; XOR each block with the previous cipher output; then encrypt this with the key. For the first block, XOR it with IV. Details in pages 325-326 Ch.12 of the textbook) b. Suppose Alice computes the Secret prefix MAC (page 322: secret prefix MAC(x) = h(key || x)) for the message ”AM” (in ASCII) with key “G” (in ASCII) that both Alice and Bob know. The hash function that is used is h(x1x2x3)= g(g(x1 XOR x2) XOR x3 ) where each xi is a character represented as 8 bits, and g(x) is a 8-bit string that is equal to the complement of bits in x. For example, g(10110011) = 01001100. The MAC is 8 bits. (8-bit ASCII representation of the characters is given below.) What is the Secret prefix MAC…
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