OS Part 2

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A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called:

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Which one of the following is the address generated by CPU?

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What is the ready state of a process?

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Mutual exclusion can be provided by the:

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What is a long-term scheduler?

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Operating system maintains the page table for

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If a page number is not found in the TLB, then it is known as a:

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Part of a program where the shared memory is accessed and which should be executed invisibly, is called:

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In memory systems, boundary registers?

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The resource vector defines

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When each process in the set is blocked awaiting for resource seized by another blocked process

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The number of resources requested be a process:

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What is interprocess communication?

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The degree of multi-programming is:

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This matrix defines the amount of resources of type j requested by process i

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To avoid the race condition, the number of processes that may be simultaneously inside their critical section is:

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Which process can be affected by other processes executing in the system?

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Which of the following registers are used by the processor to exchange data with memory?

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Which of the following registers are used by the processor to exchange data with input/output module?

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The main disadvantage of this technique: consumes a lot of processor time, because every word

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The processor issues an I/O command to a module and then go on to some other useful work. The I/O module performs the requested action and alerts the processor to request service when it is ready to exchange data with the processor. The described technique is:

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Which of the following is not a technique possible for I/O operations?

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If a page table entry is not in main memory, then it is known as a:

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We have
 Ts = average (system) access time 
T1 = access time of M1 (cache)
 T2 = access time of M2 (main memory)
 T3 = access time of M3 (disk)
 H1 = hit ratio, fraction of time reference is found i M1
 H2 = hit ratio, fraction of time reference is found i M2
 The average time to access an item, in case the item in disk is:

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This chooses which block to replace when a new block is to be loaded into the cache and the cache already had all slots filled with other blocks:

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If the accessed word is found in the faster memory, that is defined as a:

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If the accessed word is not found in the faster memory, that is defined as a:

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The processor contains a single data register, called

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Which register contains the instruction most recently fetched?

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This register specifies the location in memory for the next read or write

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Which of the following element of a computer system moves data between the computer and its external environment?

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This main disadvantage of this technique: consumes a lot of processor time, because every word of data that goes from memory to I/O module or from I/O module to memory must pass through the processor

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The processor issues an I/O command to a separate module, by sending the type of operation (read/write), the address of the I/O device, the starting location in memory for data, number of words. Then the processor continues with other work. The module transfers the entire block of data to/from memory without going through the processor. The described technique is:

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The processor issues an I/O command to a module and waits, periodically checking the status of the I/O module until it finds that the operation is complete.
The I/O module performs the requested action and then sets the appropriate bits in the I/O status register but takes no further action to alert the processor.
The described technique is:

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The processor is executing "Load AC from memory" instruction. Choose the correct micro-instruction:

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If there no interrupts, after each write operation, the processor must:

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Complete the relationship concerning the memory systems: greater capacity

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User-visible registers minimize main memory references by optimizing register use

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This register contains the data to be written into memory or which receives the data read from memory

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Which of the following element of a computer system controls the operation of the computer and performs its data processing functions?

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The main disadvantages of this technique: there is a competition for bus usage

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At the beginning of each instruction cycle, the processor fetches an instruction from the memory. The address of the instruction is held in

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The smaller, more expensive, faster memory is:

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There were no OS with

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The principal objective of the time-sharing system is to

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Serial processing was used

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The programmer interacted directly with the computer hardware with

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In operation system security and protection, availability is:

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Choose the storage management responsibility for "The OS can achieve efficiency by assigning memory to jobs only as needed"

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The limit register

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In operating system security and protection, authenticity is:

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An application programs is developed by the

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"The OS as a User/Computer interface" corresponds to the following objective

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Process is

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If a process is executing in its critical section, then no other processes can be executing in their critical section. This condition is called

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In operating system security and protection, confidentiality is:

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In operating system security and protection, Data integrity is:

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When the time required for the I/O operation is less that the time to complete the execution of instructions between write operations in the user program, it is:

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This type of memory is nonvolatile:

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If the contents of a block in the cache are altered, then it is needed to save it back to main memory before replacing it. This is called:

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What is not a structural element of a computer system?

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The main disadvantage of this technique: it is a time-consuming process that keeps the processor busy needlessly

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Which of the following element of a computer system stores data and programs

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When an I/O device completes an I/O operation, the device issues an interrupt signal to the processor and then:

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Complete the relationship concerning the memory systems: greater capacity

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Which register contains condition codes set by the processor hardware as the result of operations?

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Which of the following provides for communication among elements of a computer system?

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We have
Ts = average (system) access time 
T1 = access time of M1 (cache) 
T2 = access time of M2 (main memory) 
T3 = access time of M3 (disk) 
H1 = hit ratio, fraction of time reference is found i M1 
H2 = hit ratio, fraction of time reference is found i M2 
The average time to access an item, in case the item in main memory is:

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Control and status registers control the operation of the processor and the execution of programs

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This type of system was developed at MIT by a group known as Project MAC for the IBM 709 in 1961

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The concept of codes of operation (user mode, system mode) was introduced with

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Short-term scheduler, or dispatcher, picks a process. Each process in the queue is given some time in turn. This strategy is called:

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Central idea in this system was the use of piece of software known as the monitor:

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'More than one program attempts to make use of a shared resource at the same time'. This is

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The term was first used by the designers of Multics in 1960s:

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Utilities are

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"When program shares memory and their execution is interleaved by the processor, they may interfere with each other by overwriting common memory areas in unpredictable ways. The result of a particular program depend on the activities of other programs in shared systems".
This is:

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The state of a processor is defined by:

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The hardware and software used in providing applications to a user can be viewed in:

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Suppose that a process is in "Blocked" state waiting for some I/O device.
When the service is completed, it goes to the:

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We have
Ts = average (system) access time
T1 = access time of M1 (cache) 
T2 = access time of M2 (main memory)
T3 = access time of M3 (disk) 
H1 = hit ratio, fraction of time reference is found i M1 
H2 = hit ratio, fraction of time reference is found i M2 
The average time to access an item, in case the item in cache is:

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The serial processing presented two main problems:

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The process index register:

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The concept of a batch operating system was developed to

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Batch operating system were used

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"More than one programs hung up waiting for each other".
This is

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This contains the most frequently used functions in the OS:

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The end user views a computer system in terms of:

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Which of the following is not the state of a process?

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The fetched instruction is loaded into the

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When the time required for the I/O operation will take much more time than executing a sequence of user instructions, it is:

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The system handles multiple interactive jobs

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A system clock generates interrupts at a rate of approximately one every 0.2 seconds. At each clock interrupt, the OS regained control and could assign the processor to another user. This technique is known as

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Choose the storage management responsibility for "Programmers should be able to define programs modules, and to create, destroy, and alter the size of modules dynamically":

Suicidal Operating Systems [Teachers: Teshebayeva Karagoz, Mishina Aigerim ; Final Exam + STATE EXAM] ▼ Test sobre OS Part 2, creado por Good Guy Beket el 18/12/2017.

A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called:

Which one of the following is the address generated by CPU?

What is the ready state of a process?

Mutual exclusion can be provided by the:

What is a long-term scheduler?

Operating system maintains the page table for

If a page number is not found in the TLB, then it is known as a:

Part of a program where the shared memory is accessed and which should be executed invisibly, is called:

In memory systems, boundary registers?

The resource vector defines

When each process in the set is blocked awaiting for resource seized by another blocked process

The number of resources requested be a process:

What is interprocess communication?

The degree of multi-programming is:

This matrix defines the amount of resources of type j requested by process i

To avoid the race condition, the number of processes that may be simultaneously inside their critical section is:

Which process can be affected by other processes executing in the system?

Which of the following registers are used by the processor to exchange data with memory?

Which of the following registers are used by the processor to exchange data with input/output module?

The main disadvantage of this technique: consumes a lot of processor time, because every word