Ops

Front 1

The operating system determines when and how long a process runs.

Back 1

True

Front 2

Microsoft’s first operating system MS-DOS was a reworked and expanded version of this OS purchased from Seattle Computer Products.

Back 2

Q-DOS

Front 3

The process control block maintains "open file" status that is always current.

Back 3

True

Front 4

On a multicore CPU system, threads can run concurrently and in parallel. However, on a single core CPU system threads can only run in parallel.

Back 4

False

Front 5

A Thread Control Block (TCB) stores:

-Open file descriptors
-Memory map
-User (owner) ID
-The machine states (registers, program counter)
-None of the others

Back 5

The machine states (registers, program counter)

Front 6

Which process state transition is not valid?

-Running -> Ready
-Blocked -> Running
-Ready -> Running
-Running -> Blocked

Back 6

Blocked -> Running

Front 7

Local variables are stored in what area of the process control block memory?

Back 7

The stack memory area.

Front 8

Which variables are separate for each process thread?

Back 8

Local variables

Front 9

Every thread in your process is started by code in your process.

Back 9

False

Front 10

Which event does not take a process to a ready state?

Back 10

Process creation

Front 11

Within the process control block, a threads CPU register data is updated when then thread is removed from the running state.

Back 11

True

Front 12

Every Process has at least one thread.

Back 12

True

Front 13

Which of the following is not part of a process control block?

-Process Text/Code
-Process Scheduler
-Process Data
-Process Heap
-Process Stack

Back 13

Process Text/Code

Front 14

What process state must a thread be in for the operating system scheduler to place it into the running state?

-New State
-Running State
-Ready State
-I/O Wait State
-None of the others

Back 14

Ready State

Front 15

The PS3 from Sony is a member of which Operating System Family?

Back 15

Unix

Front 16

The protection and security system API calls are identical across all operating systems.

Back 16

False

Front 17

Process code loaded into memory can be executed by multiple threads.

Back 17

True

Front 18

What are the two primary user input methods of an OS?

-CLI and Batch methods
-GUI and specialized controller input devices
-CLI and GUI methods
-None of the above

Back 18

CLI and GUI methods

Front 19

There are four benefits to multithreaded programming. Which of these is incorrect?

-Responsiveness
-Scalability
-Economy
-Resource Sharing
-Eliminates Concurrency

Back 19

Eliminates Concurrency

Front 20

Which of these is NOT information maintenance related?

-Get/Set process, file, device attributes
-Get/Set date or time
-Create/Terminate Process
-Get/Set System Data
-None of the others

Back 20

Create/Terminate Process

Front 21

From a resource management point of view, which one of the following is the OS primarily designed for?

-Conceal complexity from user
-Ease of use
-Support plug-n-play peripherals
-Allocation, management and protection of system resources
-None of the others

Back 21

Allocation, management and protection of system resources

Front 22

A process enters a "suspended" state when it attempts to access data or code that is not currently loaded in system (RAM) memory.

Back 22

True

Front 23

From the user point of view, which of the following is the OS primarily designed?

-Application responsiveness
-Hide system complexities
-Support required peripherals
-All of the above

Back 23

All of the above

Front 24

When a parent process spawns a child thread, what execution possibility does the parent process have?

-Retrieve the detachable thread return value upon thread exit.
-None of the others
-Wait for operating system to preempt running of the child thread
-Join and wait for the detachable thread to exit.
-Wait for the child thread to finish or continue parent execution

Back 24

Wait for the child thread to finish or continue parent execution

Front 25

Servers are tuned to increase user responsiveness, at the cost of batch processing efficiency.

Back 25

False

Front 26

Which of these is not one of the major categories of system calls?

-Device Manipulation
-File Manipulation
-Process execution execution control
-Protection and security
-None of the above

Back 26

None of the Above

Front 27

A process must have all of its code and data loaded in memory in order to begin execute.

Back 27

False

Front 28

There are multiple functional categories of operating system calls. Which of the following is not one of those categories?

-Resource Allocation
-Hardware Redundancy
-I/O Operations
-Protection and Security
-None of the others

Back 28

Hardware Redundancy

Front 29

What processes are in the ready queue?

Back 29

Process loaded and ready to execute.

Front 30

Which of the following is not a reason for a child process to terminate?

Back 30

The child process has enter the I/O wait state.

Front 31

Once a deadlock has occurred one method to solve it is to ?

-Choose a victim thread and force them to release -their resource
-Use the bankers algorithm
-Invoke the medium schedular

Back 31

Choose a victim thread and force them to release their resource

Front 32

Signal Processing is best done with this threading model?

-Boss / Worker
-Peer
-Pipe Line
-None of the above

Back 32

Pipe Line

Front 33

Which action will not recover a process from deadlock?

-Wait for resource to be released by other threads
-Terminate user process and restart
-Terminate threads holding onto resources
-Restart Machine
-None of the others

Back 33

Wait for resource to be released by other threads.

Front 34

The run-time mapping from virtual to physical address is done by a hardware device called the memory-management unit (MMU).

Back 34

True

Front 35

Virtual memory allows a job to run while NOT completely in memory and to run programs that are larger than physical memory.

Back 35

True

Front 36

With ____________ virtual memory, pages are only loaded when they are needed during program execution; pages that are never accessed are never loaded into physical memory.

-Selection Paging
-Demand Paging
-Segment Paging
-Request Paging
-None of the above

Back 36

Demand Paging

Front 37

Segments are allocated using a fit algorithm, which of these is considered the least efficient?

-Best Fit
-Worst Fit
-First Fit

Back 37

Worst Fit

Front 38

Which of the following is not one of the four conditions need to have dead lock?

-System Preemption
-Non Preemption
-Circular Wait
-Mutual Exclusion
-Hold and wait for resources

Back 38

System Preemption

Front 39

What does no preemption mean?

Back 39

If a process holds a resource and is preempted by the CPU all resources held stay held until the process runs again.

Front 40

Task level parallelism breaks the process into threads based on _________

-Data
-Functional Code
-Process Type
-None of the others

Back 40

Functional Code

Front 41

Paging is a memory-management scheme that permits the physical address space of a process to be noncontiguous.

Back 41

True

Front 42

The bankers algorithm is used to control multiple instances of _______ to control deadlocks.

Back 42

A Resource

Front 43

Worker threads can only be spawned in a Pool

Back 43

False

Front 44

This threading model is best of data that is well defined data set

Back 44

Peer

Front 45

Which one of the following conditions is not required for deadlock to occur?

-Not Circular Wait
-Hold and Wait
-No Preemption
-Mutual Exclusion
-None of the above.

Back 45

None of the Above.