Why does the eCos (http://ecos.sourceware.org/) bitmap scheduler not support time slicing?
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Why does the eCos (http://ecos.sourceware.org/) bitmap scheduler not support time slicing?
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- Gadgets that pop values from the stack into a register are especially useful, as the value to be loaded in the register can be put on the stack as part of the exploit, providing control over what gets loaded into the register. Suppose there is a gadget popq %rdi; ret at address 0x0000555555555473. Your goal is to place the value 0xfeedface00000000 in register %rdi and then transfer control to a function called foo, which is at address 0x000055555557960e. The return address from the vulnerable function (i.e., the function whose buffer you will overflow with your exploit) starts exactly 48 bytes from the start of the buffer where your exploit goes. Give your exploit string in the form of input to hex2raw. (Hint: The information you need is all here; you just have to figure out in what order things should be in the exploit string. It will probably help to draw a picture.)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…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…
- Some computers have an instruction that atomically exchanges the values of two memorylocations. It is defined as follows:Exchange(int var1, int var2):⟨ int temp; temp = var1; var1 = var2; var2 = temp; ⟩Above, temp is an internal machine register.Using Exchange, dev elop a solution to the critical section problem. In particular, giv ecode forCSenter and CSexit protocols that use the shared lock variable declared below. Y our solutiondoes not have to be fair.shared variable: int lock = 0;CSenter:CSexitWe study the simulator vsfy.py and generate the following instance. Please select the correct operation that took place at each step. Initial state inode bitmap inodes data bitmap data 01: Which operation took place? inode bitmap inodes data bitmap data inode bitmap inodes 02: Which operation took place? data bitmap data 11000000 [d a:0 r:3] [d a:1 r:2] [] [] [] [] [] 11000000 [(,0) (..,0) (x,1)] [(.,1) (..,0)] inode bitmap inodes data bitmap data 11100000 [d a:0 r:3] [d a:1 r:3] [d a:2 r:2] [] [] [] [] [] 11100000 [(,0) (..,0) (x,1)] [(.,1) (..,0) (z,2)] [(.,2) (..,¹)] [] [] [] [] [] 03: Which operation took place? 11110000 [d a:0 r:3] [d a:1 r:3] [d a:2 r:2] [f a:-1 r:1] [] [] [] [] 11100000 [(,0) (..,0) (x,1) (s,3)] [(.,1) (..,0) (z,2)] [(.,2) (..,1)] [] data bitmap data 11100000 [d a:0 r:3] [d a:1 r:3] [d a:2 r:2] [] [] [] [] [] 11100000 [(,0) (..,0) (x,1)] [(.,1) (..,0) (z,2)] [(.,2) (..,1)] [] [] 04: Which operation took place? inode bitmap 11110000 inodes [d a:0 r:3] [d a:1 r:3]…ALLENGE CTIVITY 7.5.1: Draw circuit given equation. ote: To create a wire, drag from the output of a component to the input of another component. Jump to level 1 z = ab + c Delete selected item(s) a Undo Click to add. 1 1 1 Check Next
- Select the logic to implement a loop using the LOOPNZ instruction. ECX = ECX – 1 if ECX > 0 and ZF=0 , jump to destination O ECX = ECX + 1 if ECX > 0 and ZF=1, jump to destination EDX = EDX - 1 if EDX < 0 or ZF=0 , jump to destinationComputer Science Please answer this question in assembly language with .asm extension. The code given in 99Heater.asm file is: ; ===== Heater and Thermostst on Port 03 ==========================; ===== 99Heater.asm ==============================================; ===== Heater and Thermostst on Port 03 ========================== MOV AL,0 ; Code to turn the heater off OUT 03 ; Send code to the heater IN 03 ; Input from Port 03 AND AL,1 ; Mask off left seven bits JZ Cold ; If the result is zero, turn the heater on HALT ; Quit Cold: MOV AL,80 ; Code to turn the heater on OUT 03 ; Send code to the heater END; ================================================================= Fix the program 99Heater.asm so that the temperature will stay at 21 ºC. Please solve the question in assembly language. I will definitely give you THUMBS UP.A machine has a memory of 64 frames, with each frame being 1K bytes. Current free-frame list is: O×2E, Ox27, Ox37, Ox25, OX0C, Ox04, OXOE, Ox09, O×1D, Ox14, Ox16, Ox07, 0x22, 0×3E, and Ox30. You just scheduled a process that requires 10 frames. Show the resulting page table. Show the translation of logical address Ox240B and OX5A32 into physical addresses using your page table. Express your result in hex.
- Why is the sliding window technique preferable to the stop-and-go protocol?please run this assembly code visual studio not vs code. if there's an error please fix it ===The code=== fib: push rbp mov rbp, rsp push rbx sub rsp, 24 mov DWORD PTR [rbp-20], edi cmp DWORD PTR [rbp-20], 0 je .L2 cmp DWORD PTR [rbp-20], 1 jne .L3 .L2: mov eax, DWORD PTR [rbp-20] jmp .L4 .L3: mov eax, DWORD PTR [rbp-20] sub eax, 1 mov edi, eax call fib mov ebx, eax mov eax, DWORD PTR [rbp-20] sub eax, 2 mov edi, eax call fib add eax, ebx .L4: mov rbx, QWORD PTR [rbp-8] leave ret .LC0: .string "Enter Total terms: " .LC1: .string "%d" .LC2: .string "Fibonacci series: " .LC3: .string "%d " main: push rbp mov rbp, rsp sub rsp, 16 mov…Suppose we're modelling an RC crane which is receiving a sequence of input commands, each of which is UP, DOWN, or BEEP. This crane has only two vertical positions, and starts in the high position. It should go into an ERROR end state if it is asked to go UP when it is in the high position or DOWN when it is in the low position. Once it is in the ERROR state, it stays in the ERROR state no matter what commands it receives. BEEP commands are legal at any point. Give a state diagram for this system, in which each edge corresponds to receiving a single command.