Module 3 questions from LAB

A binary executable file built with dynamic linking includes a call to printf(). The memory address of printf in the code... Cannot be known, it's a macro. Will be only determined at execution - it can be anything. Is recorded as a parameter for the CALL instruction. Is always stored in a register. Depends on the version of libc that compiler knows about.

Problem Write code that when executed in PowerShell, will satisfy the following requirements: Display the contents of the c:\program files directory recursively. • Include only the name, last write time, and length in the output. • Pipe the result into a command that will send the output to an interactive table in a separate window. • Include an error action that would continue without displaying any errors. • Use only one line to solve the problem. ● Solution PS C:\> Question ID: na-2101-0119-8212

Q1. One of the major tasks of operating system is to maintain the recently accessed files. There are many algorithms are available to keep the index of the file in a sequence they are accessed, out of which the most common is Last In First Out algorithm. If you are asked to write program to implement that which data structure would you prefer? Why?

A file whose file descriptor is fd contains the following sequence of bytes: 3, 1, 4, 1, 5,9, 2, 6, 5, 3, 5. The following system calls are made:lseek(fd, 3, SEEK_SET);read(fd, &buffer, 4); where the lseek call makes a seek to byte 3 of the file. What does buffer contain after the read has completed? I guess the answer is 1,5,9,2, but I'm not sure. Please tell me the detailed steps ,thanks

The term for safety time added to chains other than the critical chain is: Feeding buffer, first (also known as feeding buffering).B. project buffer serves as a stand-in for C. path buffer, a kind of buffer that holds a file's path.The crucial buffer, in D

Multi-Answer Question Figure below illustrates the block diagram of a Unix file system. Two processes perform open file commands to open files "foo" and "ba and perform operations on these two files. Suppose that Process 1 is a "producer process" and Process 2 is a "consumer process" that communicate data using file "/../../bar" and tables shown in figure. Select all correct answers. System-wide open-tile table Per-process open-file table-1 File system 3 file descriptor Super block 5 4 Process 1 FCB's 6 5 ... fd1 = open(/../../too, Read-only) fd2 = open(/../../bar, Read-and-write) wc = write (out-fd, buffer, #-of-bytes) 7 6 Free blocks 8 7 9 File blocks 10 Per-process open-file table-2 11 3 FCB: File Control Block Process 2 4 Buffer: size 1024 bytes fd3= open(/../../bar, Read-only) fd4 = open(/../../too, Read-and-write) rc = read (in-td, butter, #-of-bytes) 5 6 "Per-process open-file tables" allow processes to open a file several times with different file-descriptors and for different…

In C programming, write a method int ksyscall_proc_get_name(char *name). *Copies the current process name to the buffer provided * char *name - pointer to the buffer to copy the name. If there is an error return -1, if success return 0.

Describe the advantages of using a FileInputStream over a FileReader when dealing with binary data.

Problem 0. Suppose a file contains 100 bytes of data. A program successfully opens it for both reading and writing (i.e., passing the mode O_READWR to open()), and gets back a file descriptor number fd. a. The program, which has a 40-byte buffer, issues a call to read() for 40 bytes. It processes that data, and then repeats the call. Both calls return the exact amount requested. Then it issues a third read, again requesting 40 bytes. What value will it return? (Assume no other program has the file open.) b. Next the program calls write (fd, buffer, 40), and the call returns 40. Then it issues another read() call for 40 bytes. What value does that call return? c. Suppose the programmer needs to read back the 40 bytes just written. First it must use 1seek() to reposition the file pointer. What parameters should it invoke 1seek () with so that the next read call will return the 40 bytes just written?

Computer Science When a program like Microsoft Word decides to write to a file, briefly describe the switches between user and kernel mode that occur, both I when that write is initiated and when it completes.