Show one of the four access control methods. What makes it special?
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Show one of the four access control methods. What makes it special?
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- The classification of access control methods should be examined in detail. Talk about all the many settings and features that each of these gadgets has to offer.A friend would like you to build an “electronic eye” for use as a fake security device. Th e device consists of three lights lined up in a row, controlled by the outputs Left , Middle, and Right, which, if asserted, indicate that a light should be on. Only one light is on at a time, and the light “moves” from left to right and then from right to left , thus scaring away thieves who believe that the device is monitoring their activity. Draw the graphical representation for the finite-state machine used to specify the electronic eye. Note that the rate of the eye’s movement will be controlled by the clock speed (which should not be too great) and that there are essentially no inputs.What is stop and wait ARQ in error control ?..
- TCP MULTIPLEXING AND DEMULTIPLEXING In the scenario below, the left and right TCP clients communicate with a TCP server using TCP sockets. The Python code used to create a single welcoming socket in the server is shown in the figure (the welcoming socket itself is not shown graphically); code is also shown for the client sockets as well. The three sockets shown in server were created as a result of the server accepting connection requests on this welcoming socket from the two clients (one connection from the client on the left, and two connections from the client on the right). mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 6189 ); P1 Answer mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 5854 ); ♫ transport QUESTION 1 OF 8 network link physical What is the source port # for packet C? www B source port: ? dest port: ? P4 HIGH A source port: ? dest port: ? P5 P6 transport network lirk physical mySocket1 = socket (AF_INET, SOCK_STREAM) mySocket1.bind…TCP MULTIPLEXING AND DEMULTIPLEXING In the scenario below, the left and right TCP clients communicate with a TCP server using TCP sockets. The Python code used to create a single welcoming socket in the server is shown in the figure (the welcoming socket itself is not shown graphically); code is also shown for the client sockets as well. The three sockets shown in server were created as a result of the server accepting connection requests on this welcoming socket from the two clients (one connection from the client on the left, and two connections from the client on the right). mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 6189 ); P1 mySocket = socket (AF_INET, SOCK_STREAM) mySocket.bind (myaddr, 5854 ); U transport network link physical QUESTION 2 OF 8 B source port: ? dest port: ? What is the destination port # for packet C? P4 P5 P6 transport network link physical A source port: ? dest port: ? mySocket1 = socket (AF_INET, SOCK_STREAM) mySocket1.bind (myaddr, 5262…Computer screens often use the WIMP layout. The Desktop metaphor is widely used in WIMP implementations, and it maps typical operations to their concrete equivalents. To move a file, just click and drag it to its new home (a different folder or the desktop). Give us two procedures and the situations in which they might be used.
- Your company is building a computer network, and you are asked to develop a scheme for dealing with the deadlock problem. A. Would you use a deadlock-detection scheme or a deadlock prevention scheme? B. If you were to use a deadlock-prevention scheme, which one would you use? Explain your choice. C. If you were to use a deadlock-detection scheme, which one would you use? Explain your choice.Suppose, you are a developer of a software company named 'HackerMan'. Your supervisor asked you to develop a password generator program, for MIPS architecture, that can not only generate passwords but also break them. After building the program, you observed that the program was taking 2111 seconds to execute and the password generation was taking 87% of the total run time. After reporting to your boss fearfully, he said it was unacceptable and threatened to fire you unless you can increase the whole program's performance by a factor of 4.5 by optimizing the password generation. Now, your job's future rests in your optimization skills and the results of your analysis. Let's start with the analysis. 1. You need to improve the password generation operation by a factor of what, to meet the requirements? 2 Compute the new time of the program (in seconds) taken by the generation operation.Please label each part!!