Operativni SiSTEMi 1

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Quizzes Created: 1 | Total Attempts: 831

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1/251 Pitanja

Koji je ovo algoritam
- FIFO algoritam:
- Ne znam
- Ne znam

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2.

Objasniti dinamičko punjenje? Ko je glani i odgovorni za dinamičko punjenje
- Programer
- Dugi raspoređivač
- Kratki raspoređivač
- Operativni sistem
Correct Answer

A. Programer

Explanation

Dinamičko punjenje se odnosi na proces u kojem se programer bavi dodavanjem ili uklanjanjem funkcionalnosti iz aplikacije tokom izvršavanja programa. Programer je glavni i odgovorni za dinamičko punjenje jer on odlučuje koje funkcionalnosti treba dodati ili ukloniti u aplikaciji kako bi se postigao željeni rezultat. Programer može koristiti odgovarajuće tehnike i alate kako bi omogućio dinamičko punjenje u aplikaciji.

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3.

Imate MMU sa relokacionim registrom. Generisana logička adresa iznosi 150, a vrednostrelokacionog registra za proces je 10000. Izračunati fizičku adresu.

Correct Answer
10150

Explanation
The logical address is calculated by adding the value of the relocation register to the generated logical address. In this case, the logical address is 150 and the value of the relocation register is 10000. Adding these two values together gives us a physical address of 10150.

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4.

Sta je ovo
- RPC poziv udaljene procedure
- Ne znam
- Pitajte nekoga
Correct Answer

A. RPC poziv udaljene procedure

Explanation

The given answer "RPC poziv udaljene procedure" is in Serbian language and it translates to "RPC call remote procedure" in English. It suggests that the question is asking about the meaning or definition of RPC (Remote Procedure Call), which is a protocol that allows a computer program to execute a subroutine or procedure in another computer or server.

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5.

Koju arhitekturu vidite na slici:
- Client/server
- Time sharing
- Cloud computing
- Distributed systems
- Cluster
Correct Answer

A. Client/server

Explanation

The correct answer is "Client/server". This architecture is depicted in the image. In a client/server architecture, the client sends requests to a server, which processes those requests and sends back the results. This architecture allows for the separation of concerns, as the client is responsible for the presentation layer and user interface, while the server handles the business logic and data storage.

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6.

U arhitekturu koju vidite na ovoj slici:
- Sloj M može tražiti uslugu samo slojeva ispod sebe (M-1, ....)
- Sloj M može tražiti uslugu samo slojeva iznad sebe (M-1,.....)
- Sloj M može tražiti uslugu bilo kog sloja
- Sloj M može koristiti samo sopstvene usluge
Correct Answer

A. Sloj M može tražiti uslugu samo slojeva ispod sebe (M-1, ....)

Explanation

The correct answer is "Sloj M može tražiti uslugu samo slojeva ispod sebe (M-1, ....)". This means that Layer M can only request services from the layers below it, denoted as M-1 and so on. It cannot request services from the layers above it or from any other layer.

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7.

Sta je najbolje za time sharing sisteme
- Round Robin (RR)
- Ne znam
- Ne znam ni ja
Correct Answer

A. Round Robin (RR)

Explanation

Round Robin (RR) is the best option for time sharing systems because it ensures fairness and equal distribution of resources among multiple users. In RR scheduling, each user is given a fixed time slice or quantum to use the system, and if the user does not complete their task within the time slice, it is preempted and the next user is given a chance. This prevents any single user from monopolizing the system and allows for efficient utilization of resources. Therefore, RR is the most suitable scheduling algorithm for time sharing systems.

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8.

U strukturnoj šemi OS-a, najkvalitetniji i fundamentalni deo naziva se:
- Kernel
- MMU
- Device Driver
- TCP/IP
- Interrupt routine
Correct Answer

A. Kernel

Explanation

The kernel is the most important and fundamental part of an operating system. It is responsible for managing the system's resources, such as memory, processes, and hardware devices. Without the kernel, the operating system would not be able to function properly. It acts as a bridge between the software and hardware components of the system, allowing them to communicate and work together. The kernel also provides essential services and functions, such as memory management, process scheduling, and device driver management. Therefore, the kernel is crucial for the proper functioning and stability of an operating system.

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9.

U modelu na slici, kada neka od korisničkih niti pređe u stanje waiting:
- Sve druge korisničke niti iz iste grupe nastavljaju aktivnosti normalno
- Sve druge korisničke niti iz iste grupe su blokirane
- Samo slične niti iz site grupe su blokirane
- Ne može da se zaključi
Correct Answer

A. Sve druge korisničke niti iz iste grupe nastavljaju aktivnosti normalno

Explanation

When a user thread in the model transitions to the waiting state, all other user threads from the same group continue their activities normally. This means that the waiting state of one thread does not affect the execution of other threads in the same group.

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10.

Sta je ovo
- Multilevel rasporedjivanje bez povratne sprege:
- Ne znam
- Ne znam ni ja
Correct Answer

A. Multilevel rasporedjivanje bez povratne sprege:
11.

Koju arhitekturu vidite na slici:
- Slojevitu
- Microkernel
- Distribuiranu
- Client/server
- Monolitnu
Correct Answer

A. Slojevitu

Explanation

The architecture seen in the picture is layered architecture. Layered architecture is a design pattern where the system is divided into multiple layers, each responsible for a specific set of functionalities. Each layer interacts with the layer above and below it, following a strict hierarchy. This allows for easier maintenance, scalability, and reusability of components. In the given picture, the system is clearly divided into different layers, indicating a layered architecture.

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12.

U situaciji prikazanoj u jednoj grani sigurno se dogodila preemption. To je:
- Druga grana (time slice expired)
- Prva grana (I/O reguest)
- Treda grana (fork a child)
- Četvrta grana (wait for an interrupt)
- Nijedna grana ne odgovara
- Dogođa se u svakoj grani
Correct Answer

A. Druga grana (time slice expired)

Explanation

In the given situation, preemption definitely occurred. This means that the execution of the current process was interrupted because its time slice expired. This allows the operating system to allocate the CPU to another process, ensuring fairness and preventing any single process from monopolizing the CPU for too long.

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13.

Model na slici je:
- Many-to-one
- One-to-one
- Many-to many
- Ne može da se zaključi
Correct Answer

A. Many-to-one

Explanation

The model in the picture is a many-to-one model. This means that multiple inputs are mapped to a single output. In other words, there are many possible inputs, but only one corresponding output.

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14.

U multithread modela procesa, programski kod je:
- Zajednički-deljiv za sve niti
- Unikatan-nedeljiv za svaku nit pojedinačno
- Zajednički-deljiv samo za pojedine niti
- Deljivost zavisi od OS
Correct Answer

A. Zajednički-deljiv za sve niti

Explanation

The correct answer is "Zajednički-deljiv za sve niti" (Shared-divisible for all threads). This means that the program code can be accessed and executed by multiple threads simultaneously without any issues or conflicts. It implies that the code does not have any thread-specific restrictions or limitations, and can be executed by all threads concurrently.

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15.

Idendifikujte koji je ovo short-term scheduler algoritam, pa ga ocenite po pitanju preemption:
- Preemptive
- Zavisi od OS
- Ne može da se odredi
- Non-preemptive
- Uslovno preemptive
Correct Answer

A. Preemptive

Explanation

This question is asking to identify the short-term scheduler algorithm and evaluate it based on preemption. The correct answer is "Preemptive." This means that the short-term scheduler algorithm allows for preemption, which means that it can interrupt a running process before it has completed and allocate the CPU to another process. This allows for better responsiveness and prioritization of processes.

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16.

Postoje 4 uslova vezana za pojavu deadlock-a1.Mutual Exclusion2. Hold and wait3. No preemption4. Circular WaitDeadlock će se dogoditi:
- Ako su istovremeno ispunjena sva 4 uslova
- Ako su istovremeno ispunjena bar 2 od 4 uslova
- Ako su istovoremeno ispunjena bar 3 od 4 uslova
- Ako je ispunjen bar jedan od ova 4 uslova
Correct Answer

A. Ako su istovremeno ispunjena sva 4 uslova

Explanation

If all four conditions are simultaneously satisfied, a deadlock will occur. The four conditions are mutual exclusion, hold and wait, no preemption, and circular wait. Mutual exclusion means that only one process can use a resource at a time. Hold and wait means that a process can hold a resource while waiting for another resource. No preemption means that a resource cannot be taken away from a process until it is finished using it. Circular wait means that there is a circular chain of processes, each waiting for a resource held by the next process in the chain. If all four conditions are met, a deadlock is inevitable.

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17.

Koji OS je napravio jedan od najboljih many-to-many modela:
- B
- A
- C
- D
Correct Answer

A. B

Explanation

One of the best many-to-many models was created by OS b.

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18.

Sta je ovde u pitanju
- Hash bazirana Page tabela(brzo pretrazivanje ogromne tabele stranica):
- Ne znam
- Neka kaze ko zna
Correct Answer

A. Hash bazirana Page tabela(brzo pretrazivanje ogromne tabele stranica):
19.

Sta je ovde
- Context switch, učestvuju dispečer i kratki rasporedjivač
- Ne znam
- Ne znam
Correct Answer

A. Context switch, učestvuju dispečer i kratki rasporedjivač

Explanation

The correct answer is that a context switch involves the participation of a dispatcher and a short scheduler. A context switch refers to the process of saving the current state of a process and restoring the saved state of another process. It is necessary for multitasking operating systems to efficiently switch between different processes. The dispatcher is responsible for initiating the context switch, while the short scheduler determines which process will be selected to run next. Both the dispatcher and the short scheduler play a crucial role in coordinating the context switch and ensuring smooth execution of multiple processes.

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20.

Ko je najbolji prijatelj CPU i računarskog sistema
- Timer
- Cooler
- Mouse
- Hard disc
- Cash memorija
- Flash memorija
- MDA
- Network card
Correct Answer

A. Timer

Explanation

The timer is the best friend of the CPU and computer system because it helps in managing and coordinating various tasks and processes. It ensures that different operations are executed at specific intervals, allowing for efficient and synchronized functioning of the system. The timer is responsible for maintaining the system clock, scheduling tasks, and controlling the execution of processes, making it an essential component for the smooth operation of the CPU and computer system.

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21.

Šta vidite na ovoj slici:
- Multiprograming
- Time-sharing OS
- Real-time OS
- PIC ciklus
- DMA ciklus
Correct Answer

A. Multiprograming

Explanation

The correct answer is Multiprograming. Multiprogramming is a technique used by operating systems to execute multiple programs concurrently. It allows the CPU to switch between different programs, giving the illusion of parallel execution. This improves the overall efficiency and utilization of the system's resources.

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22.

Koji je ovo shor-term scheduler algoritam
- RR
- MultiLevel without feedback
- Priority
- MultiLevel with feedback
- FCFS(FIFO)
- SJF
- SRTF
Correct Answer

A. RR

Explanation

The correct answer is RR, which stands for Round Robin. This scheduling algorithm is a preemptive algorithm in which each process is assigned a fixed time slice or quantum. The processes are executed in a circular order, with each process getting a chance to run for its allocated time slice. If a process does not complete within its time slice, it is moved to the back of the queue and the next process is given a chance to run. This algorithm ensures fairness by giving all processes an equal opportunity to run and is commonly used in time-sharing systems.

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23.

Sta je ovo
- Paging sa TLB, performanse su kao bez paginga:
- Ne znam
- Sta ja znam
- Nikad necu ni znati
Correct Answer

A. Paging sa TLB, performanse su kao bez paginga:
24.

Sistemski poziv predstavlja interfejs između
- Procesa i kernela
- Procesa i memorije
- Procesa i CPU
- Procesa i aplikativnog sloja
Correct Answer

A. Procesa i kernela

Explanation

A sistemski poziv predstavlja interfejs između procesa i kernela. Kernel je jezgro operativnog sistema koje upravlja resursima i pruža osnovne funkcionalnosti, dok su procesi izvršne instance programa. Sistemski poziv omogućava procesima da komuniciraju sa kernelom i zatraže pristup resursima ili izvršenje određenih operacija koje su rezervisane za kernel. Ovo omogućava procesima da pristupe hardverskim uređajima, upravljaju memorijom ili izvrše zaštićene operacije koje su deo kernela.

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25.

Najtipičniji predstavnik TS (timesharing systems)
- UNIX / Linux
- MS windows
- DOS
- Cloud computing
- Google chrome
Correct Answer

A. UNIX / Linux

Explanation

UNIX/Linux is the most typical representative of timesharing systems (TS) because these operating systems were designed to allow multiple users to access and share system resources simultaneously. TS enables multiple users to interact with a single computer system at the same time, dividing the CPU time and resources among them. UNIX/Linux has been widely used in the development of TS due to its stability, multi-user support, and robust security features. It provides a secure and efficient environment for users to run their programs and share system resources, making it the most suitable option for timesharing systems.

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26.

U osnovnom dijagramu slanja proseca, sa slike učestvuju neki od raspoređivača. To su:
- Short-term scheduler
- Long-term scheduler
- Medium-term scheduler
- Svi
- Nijedan
Correct Answer

A. Short-term scheduler

Explanation

The correct answer is Short-term scheduler. In the given question, the options are different types of schedulers that participate in the sending average process. The short-term scheduler is responsible for selecting which process from the ready queue should be executed next. Therefore, it is the most appropriate option in this context.

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27.

Idendifikujte koji je ovo short-term scheduler algoritam, pa ga ocenite po pitanju performansi
- 5 Odličan
- 3 Vrlo dobar
- Zavisi od OS
- 1 veoma slab
- 4 jako dobar
Correct Answer

A. 5 Odličan

Explanation

This answer suggests that the short-term scheduler algorithm being referred to is excellent in terms of performance.

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28.

Struktura na slici: uglavnom služi:
- Za modelovanje sistema u cilju ispitivanja deadlock-a
- Za modelovanje sistema u cilju ispitivanja utroska vremena
- Za modelovanje sistema u cilju ispitivanja pouzdanosti
- Za modelovanje sistema u cilju merenja performansi
Correct Answer

A. Za modelovanje sistema u cilju ispitivanja deadlock-a

Explanation

The correct answer is "za modelovanje sistema u cilju ispitivanja deadlock-a." This is because the given structure is mainly used for modeling systems in order to test for deadlocks. Deadlocks occur when two or more processes are unable to proceed because each is waiting for the other to release a resource. By modeling systems and simulating their behavior, we can identify potential deadlocks and design solutions to prevent or resolve them.

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29.

Kako se štiti CPU u računarskim sistemima? Koji je hardverski uređaj najpogodniji za CPU zaštitu:
- Timer
- Keš memorija
- Flash memorija
- DMA
- Network card
Correct Answer

A. Timer

Explanation

A timer is a hardware device that can be used to protect the CPU in computer systems. It helps in managing and controlling the execution time of various processes and tasks running on the CPU. By setting timers, the CPU can be protected from excessive usage or being overloaded with tasks, which can lead to system crashes or slowdowns. Timers can also be used for scheduling tasks and ensuring that they are executed within specific time limits, thus preventing any potential harm to the CPU.

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30.

Na ovoj slici vidi se:
- Jedini IPC mehanizam koji je pogodan za mrežni IPC
- Jedan od IPC mehanizama koji su pogodni za mrežni IPC
- Jedan od IPC mehanizama koji nisu pogodni za mrežni IPC
- Jedini IPC mehanizam koji nije pogodan za mrežni IPC
Correct Answer

A. Jedini IPC mehanizam koji je pogodan za mrežni IPC

Explanation

The correct answer is "Jedini IPC mehanizam koji je pogodan za mrežni IPC" which translates to "The only IPC mechanism suitable for network IPC." This suggests that among the options provided, there is only one IPC mechanism that is appropriate for network IPC, while the others may not be suitable for this purpose.

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31.

Čiji je ovo many-to-many model:
- Sun Solaris
- MS Windows
- Linux
- Novel-Netware
- Android
- Google Chrome
Correct Answer

A. Sun Solaris

Explanation

Sun Solaris je many-to-many model koji se odnosi na operativni sistem Sun Solaris. Many-to-many model se odnosi na situaciju u kojoj više entiteta može biti povezano sa više drugih entiteta. U ovom slučaju, Sun Solaris može biti instaliran na različitim platformama kao što su MS Windows, Linux, Novel-Netware, Android i Google Chrome.

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32.

Struktura na slici uglavnom služi
- Za modelovanje sistema u cilju ispitivanja deadlock-a
- Za modelovanje sistema u cilju isitivanja utroška resursa
- Za modelovanje sistema u cilju ispitivanja pouzdanosti
- Za modelovanje sistema u cilju merenja performansi
Correct Answer

A. Za modelovanje sistema u cilju ispitivanja deadlock-a

Explanation

The correct answer is "za modelovanje sistema u cilju ispitivanja deadlock-a" because the structure in the picture is mainly used for modeling systems in order to test for deadlocks. Deadlocks occur when two or more processes are unable to proceed because each is waiting for the other to release a resource. By modeling the system and analyzing its structure, it is possible to detect potential deadlocks and prevent them from occurring in real-world scenarios.

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33.

Analizirati straničenje. Imate veličinu stranice od 1K (1024bajta). Kolika je maksimalna interna fragmentacija za ovaj slučaj
- 1023 bajta
- 512 bajtova
- 1024 bajta
- 0 bajta
- 511 bajtova
Correct Answer

A. 1023 bajta

Explanation

The maximum internal fragmentation in this case is 1023 bytes. Internal fragmentation refers to the wasted space within a memory page due to the allocation of memory in fixed-sized blocks. Since the page size is 1K (1024 bytes), if a process requires less than the full page size (1024 bytes), the remaining space within the page will be wasted and considered as internal fragmentation. In this case, if the process requires 1 byte less than the full page size, i.e., 1023 bytes, the maximum internal fragmentation will be 1023 bytes.

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34.

Sta je ovde u pitanju
- AKO nema matrice maksimalnih zahteva to je Deadlock detection, ako ima onda je Bankar!!
- Ne znam
- Neka kaze ko zna
Correct Answer

A. AKO nema matrice maksimalnih zahteva to je Deadlock detection, ako ima onda je Bankar!!

Explanation

The correct answer states that if there is no matrix of maximum demands, then it is Deadlock detection. However, if there is a matrix of maximum demands, then it is Banker's algorithm. This suggests that the question is asking about the difference between Deadlock detection and Banker's algorithm in relation to the presence or absence of a matrix of maximum demands.

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35.

U user modu, proces koristi:
- Samo 2 resursa: CPU i RAM
- Bilo koje resurse sistema
- Samo CPU
- Samo RAM
- Samo 2 resursa: CPU i datoteke
- Samo 3 resursa: CPU, RAM i datoteke
Correct Answer

A. Samo 2 resursa: CPU i RAM

Explanation

The correct answer is "Samo 2 resursa: CPU i RAM" because the user mode of a process only utilizes two resources, which are the CPU (Central Processing Unit) and RAM (Random Access Memory). It does not require any other system resources such as files.

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36.

Kod TS (time-sharing systems) fundamentalni resurs koji se deli (share) je:
- CPU time
- DMA
- PIC
- RAM
- Network
Correct Answer

A. CPU time

Explanation

The correct answer is CPU time. In time-sharing systems, the fundamental resource that is shared among multiple users is the CPU time. This means that the CPU is divided and allocated to different users or processes, allowing them to take turns using the CPU for their tasks. This sharing of CPU time ensures that all users get a fair amount of processing power and allows for efficient multitasking in the system.

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37.

Kojem OS najviše odgovara ova slika
- MS windows (NT based)
- Novell netware
- UNIX/Linux
- Sun solaris
- DOS
Correct Answer

A. MS windows (NT based)

Explanation

The given image is most suitable for MS Windows (NT based) operating system because the interface and design of the image appear to be consistent with the Windows operating system. The other options, such as Novell Netware, UNIX/Linux, Sun Solaris, and DOS, do not match the visual characteristics of the image.

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38.

Kojem OS najviše odgovara ova slika
- DOS
- UNIX/Linux
- Google chrome
- Novell netware
- MS Windows
Correct Answer

A. DOS

Explanation

The given image most likely represents a command line interface, which is commonly associated with DOS (Disk Operating System). DOS is an older operating system that primarily uses a text-based interface. This is supported by the fact that UNIX/Linux and MS Windows also have command line interfaces, but Google Chrome and Novell Netware do not. Therefore, DOS is the most suitable operating system for the given image.

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39.

Usituaciji na slici štiti se jedan hardverski resurs. To je:
- RAM memorija
- Hard disk
- Mrežna kartica
- I/O system
- CPU
Correct Answer

A. RAM memorija

Explanation

The correct answer is RAM memorija. In the given situation, one hardware resource is being protected. RAM (Random Access Memory) is a type of computer memory that is used to store data that is currently being used by the computer's operating system, programs, and processes. It is a volatile memory, meaning that its contents are lost when the computer is turned off or restarted. Protecting the RAM ensures that the data stored in it is not corrupted or accessed by unauthorized entities.

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40.

U situaciji na slici štiti se jedan hardverski resurs. To je:
- RAM memorija
- Mrežna kartica
- CPU
- I/O system
- Hard disk
Correct Answer

A. RAM memorija

Explanation

In the given situation, one hardware resource is being protected. This resource is the RAM memory.

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41.

Identifikujte koji je ovo short-term scheduler algoritam, pa ga ocenite po pitanju preemption:
- Preemptive
- Zavisi od OS
- Ne može da se odredi
- Non-preemptive
- Uslovno preemptive
Correct Answer

A. Preemptive

Explanation

The given correct answer is "Preemptive". This means that the short-term scheduler algorithm being referred to is a preemptive algorithm. In a preemptive scheduling algorithm, the operating system can interrupt a running process and allocate the CPU to another process. This allows for better responsiveness and prioritization of processes.

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42.

Analizirati segmentaciju. Imate veličinu stranice od 1350 bajtova. Kolika je minimalna internafragmentacija za ovaj slučaj.
- 0 bajta
- 511 bajtova
- 512 bajtova
- 1023 bajtova
- 1024 bajta
Correct Answer

A. 0 bajta

Explanation

The question is asking about the minimum internal fragmentation for a page size of 1350 bytes. Internal fragmentation refers to the unused space within a memory block allocated to a process. In this case, the page size is already equal to or smaller than the allocated memory, so there is no unused space or internal fragmentation. Therefore, the minimum internal fragmentation for this case is 0 bytes.

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43.

MMU šema na slici naziva se
- Hierarcical paging
- Hash paging
- Paging
- Inverted paging
Correct Answer

A. Hierarcical paging

Explanation

Hierarchical paging is the correct answer because it refers to the memory management unit (MMU) scheme shown in the picture. In hierarchical paging, the virtual address space is divided into multiple levels of page tables, allowing for efficient memory management. This scheme helps in organizing and accessing the pages in a hierarchical structure, which improves the overall performance of the system.

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44.

Objasniti dinamičko punjenje? Ko je glavni i odgovorni za dinamičko punjenje
- Programer
- Kratki raspoređivači
- Dugi raspoređivači
- Operativni sistem
Correct Answer

A. Programer

Explanation

Dinamičko punjenje se odnosi na proces u kojem se memorija ili resursi alociraju i oslobađaju tokom izvršavanja programa. Programer je glavni i odgovorni za dinamičko punjenje jer on odlučuje kada i kako će se resursi alocirati i oslobađati u programu. Programer može koristiti odgovarajuće funkcije ili metode za alociranje memorije ili resursa i osigurati da se oni pravilno koriste i oslobađaju kako bi se izbjegle curenja memorije ili prekoračenje kapaciteta.

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45.

Ne znam sta treba ovde ali ima ponudjeno ovo Performanse : 1Zakucavanje : 5Dobar za nikoga, ni za jedan os.Priority:Performanse: 5Zakucavanje: 1
- Tacan odgovor
- Pogresan odgovor
- Pogresan odgovor
Correct Answer

A. Tacan odgovor
46.

Koju arhitekturu vidite na ovoj slici:
- Slojevitu
- Monolitnu
- Mikrokernel
- Client/server
- Distribuiranu
Correct Answer

A. Slojevitu

Explanation

Na slici se vidi slojevita arhitektura. Slojevita arhitektura je arhitektura softvera koja se sastoji od različitih slojeva, pri čemu svaki sloj pruža određene funkcionalnosti i komunicira samo sa susjednim slojevima. Ova arhitektura omogućava modularnost, fleksibilnost i lako održavanje softvera.

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47.

Situacija na slici predstavlja:
- Najbolji ali ne i jedini način da proces dobije bilo kakav hardverski resurs
- Jedini način da proces dobije bilo kakav resurs
- Jedini način da proces dobije CPU
- Jedini način da proces dobije RAM
- Najbolji ali ne i jedini način da proces dobije CPU
Correct Answer

A. Najbolji ali ne i jedini način da proces dobije bilo kakav hardverski resurs

Explanation

The situation depicted in the image represents the best, but not the only way for a process to obtain any hardware resource. This means that there may be other methods or alternatives for a process to acquire hardware resources, but the depicted method is considered the most optimal or preferred one.

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48.

U multithread modelu procesa, globalni podaci su:
- Zajednički-deljivi za sve niti
- Unikatni-nedeljivi za svaku nit pojedinačno
- Zajednički-deljivi samo za pojedine niti
- Deljivost zavisi od OS
Correct Answer

A. Zajednički-deljivi za sve niti

Explanation

In a multithread model of a process, global data refers to the data that can be accessed and modified by all the threads in the process. This means that the global data is shared and accessible to all the threads, allowing them to read from and write to the same data. Therefore, the correct answer is "Zajednički-deljivi za sve niti" which translates to "Shared-divisible for all threads".

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49.

U osnovnom dijagramu stanja procesa, sa slike uočite tranziciju running-I/O or event wait-waiting. Da li su toj tranziciji dogodio preemption:
- Sigurno ne
- Zavisi od OS
- Obavezno
- Nekada se poziva nekada ne
- Ne može da se odredi
Correct Answer

A. Sigurno ne

Explanation

In the given question, the correct answer is "Sigurno ne" which translates to "Definitely not" in English. This means that in the transition from running to I/O or event wait to waiting, preemption did not occur.

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