Fichas
RepasoMT
Fichas del conjunto (24)
- 1What are the chmos command(s) to give everyone full access permission to directory /public (you are root)chmod a+rwx /public
chmod 777 /public - 2An arbitration capability of an OS isScheduling processes on the CPU
- 3A purpose of an OS isTo supervise the executions of users programs to prevent errors
To allocate resources of the underlying hardware as needed to perfom the required tasks - 4A modular OS can be customized?Verdadero
- 5Process management allowsHandling I/O events
- 6Which command is used to remove a directory with all its subdirectories without asking a confirmationrm –r
- 7Given the file permission in octal mode 644 for a file, what are the chmod command(s) that add execut permissions for group and otherschmod 655, chmod g+x,o+x
- 8An unprivileged-mode process can manage directly the underlying hardware?Falso
- 9Which command change the current directorycd ..
- 10Which command(s) show the name of the current user logged inwhoami, who
- 11How many types of permissions are in Linux?3. Read, Write and Execute.
- 12Using an example, describe an advantage of asymmetric multiprocessing architectureIt could be the way this architecture is similar to a group of people who know what they do at different moments but with a principal purpose to get what they want as a group. This should be each processes is assigned to a cpu
- 13What are environment variables?Environment variables are dynamic values that store configuration settings and information used by programs and the operating system to modify behavior and functionality.
- 14For a given I/O device, the device controller and the device driver are the same?Falso
- 15Which command deletes files from a directoryrm -r
- 16A file editor software is a component of an OS?Falso
- 17A running application can have direct access to the underlying hardwareFalso
- 18Explain how privileged and unprivileged modes communicateBy system calls and dual operation (1/0). 1=user-mode, 0=kernel-mode
- 19Explain why the bootstrap program is saved to ROM?The bootstrap initializes the OS's kernel and it can not be modified in the Read Only Memory
- 20Interrupts can also arise on mobile Operating Systems?Verdadero
- 21When an interrupt is raised, the Main Memory takes control of the processes flow?Falso
- 22In order to protect a file from deletion, you have tochange the file write permission
- 23An arbitration capability of an OS isAllocating memory addresses for processes
- 24What is the command to create an empty filetouch file
Información
- Descripción
- Séptimo Sistemas Operativos Fichas sobre RepasoMT, creado por Dánely Sánchez el 14/06/2023.
- Creado por
- Dánely Sánchez
- Visitas
- 2
- Valoración