Test
Operating systems: processes, schedulers and threads E07
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Preguntas del test (8)
1what is a CLI?
[blank_start]command line interface[blank_end]- Acommand line interface
2what are the 2 type of interpeter(cli)
f[blank_start]iles[blank_end] and just one big p[blank_start]rogram[blank_end]- Ailes
- Brogram
3its part of the OS jobs to keep processes from touching memory
of other processes (security)- AVerdadero
- BFalso
4the main job of the long term scheduler is to decide which processes should move to the [blank_start]ready que[blank_end].
with that the scedhuler decides the degree of [blank_start]multiprogramming[blank_end] in the system.
when a process is switched que it is [blank_start]swap[blank_end]ed out or in.
the long term should place a good mix of [blank_start]IO bound[blank_end] and cpu [blank_start]bound[blank_end] prcoccesses into the ready que.- Aready que
- Bmultiprogramming
- Cswap
- DIO bound
- Ebound
5the PCB saves the [blank_start]state[blank_end] of a program and is switched in a [blank_start]context switch[blank_end]
- Astate
- Bcontext switch
6an advandjate off many to one thread maping:
no overhead
disadvantadge: no real [blank_start]concurreny[blank_end] . 1 thread [blank_start]blocking[blank_end] will block all- Aconcurreny
- Bblocking
7deffered thread cancelltion is when
the thread can [blank_start]decide[blank_end] itself when to ca[blank_start]nce[blank_end]l . will cancel at a valid stop point after releasing
[blank_start]resources[blank_end].- Aresources
- Bdecide
- Cnce
8the problem with asyncrhonous thread cancelltion
- Atakes more time
- Bthe thread might not have relesed all resources
Información
- Descripción
- Test sobre Sin título, creado por Daniel Glickman el 30/07/2016.
- Autor
- Daniel Glickman
- Idioma
- English
- Visitas
- 0
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