BS1 Fragen (grandios unvollstaendig)

bs1quiz.md

BS1 Klausur Multiple Choice

Was ist kein Windows Entwurfsziel?

• portability
• nahtloser netzwerk support
• efficiency
• (hard) realtime

Ziele von Trennung User/Kernelmode

• Increasing OS Efficiency
• Protection vor konkurrierenden Aktivitaeten verschiedener User
• File System beschuetzen

Which OS did not contribute to Windows

• VMS
• MSDOS
• IBM OS/360
• UNIX

Client / Server Versionen von Win

• Kernel Implementation
• Max FS Size
• Def. Quantum Laenge beim Scheduling
• Max Nr Prozesse

Applicable Restrictions to services started by Windows Service Controller Manager under local system account

• no Registry Access
• no network access
• no access to devices except floppy/mouse
• no access to file system

Wich CPU was never supported

• intel 80486
• power pc
• dec alpha axp
• ...?

was hat ein prozess nicht?

• private adress space
• set of open res
• one or more threads
• hardware context (der ist im Thread!)

Was ist ein Thread

• component of most fabrics
• execution context
• ...

Default User Adress Space in Win32

• 1gb
• 2gb (2^10 ist ca 10^3)
• 3gb
• 4gb

User Program can corrput OS memory?

• true
• false (EIGENTLICH nicht)

Kernel Mode schuetzt Prozess vor...

• corrupt OS mem
• corrupt other process' mem
• be corrupted by OS
• be corrupted by other process

Windows is Micro Kernel based

• true
• false

..because:

• kernel > 100kb
• not running on handheld
• nt baed on mach
• betriebssystemkomponenten nutzen selben adressraum?

Win MultiCPU supoort is called

??

Subsys mit meisten Diensten

??

What do env subsys not do

• interface to native syscalls
• define process / fs semantics
• service interrupts
• all

Win Subsys is partially imp als device driver

• true since NT4

how many versions of ntoskrnl.exe in 32bit win?

• 2
• 4 (ein CPU, mehr CPU...; debugger an/aus)
• 6 (*noch iwas, je nach frage?)
• 5

Role of win kernel

• abstract differences
• ?
• ?
• all

Role of HAL

• prevent drivers from accessing hw directly
• make cpu look the same to
• portability to motherboard