Chapter 3 - OS2T

1. 1A computer platform consists of a collection of hardware resources, such as the processor, main memory, I/O modules, timers, and disk drives.

   1. AVerdadero
   2. BFalso
2. 2For efficiency, applications should be written directly for a given hardware platform.

   1. AVerdadero
   2. BFalso
3. 3A design change in the structure or semantics of the process control block could affect a number of modules in the OS.

   1. AVerdadero
   2. BFalso
4. 4The process control block is the key tool that enables the OS to support multiple processes and to provide for multiprocessing.

   1. AVerdadero
   2. BFalso
5. 5It is not the responsibility of the operating system to control the execution of processes.
   

   1. AVerdadero
   2. BFalso
6. 6The first step in designing an OS to control processes is to describe the behavior that we would like the processes to exhibit.

   1. AVerdadero
   2. BFalso
7. 7The OS may create a process on behalf of an application.

   1. AVerdadero
   2. BFalso
8. 8Swapping is not an I/O operation so it will not enhance performance.

   1. AVerdadero
   2. BFalso
9. 9If a system does not employ virtual memory each process to be executed must be fully loaded into main memory.

   1. AVerdadero
   2. BFalso
10. 10A process that is not in main memory is immediately available for execution, regardless of whether or not it is awaiting an event.

    1. AVerdadero
    2. BFalso

11. 11The OS may suspend a process if it detects or suspects a problem.

    1. AVerdadero
    2. BFalso
12. 12All processor designs include a register or set of registers, often known as the program status word, which contains status information.

    1. AVerdadero
    2. BFalso
13. 13The process control block is the least important data structure in an OS.

    1. AVerdadero
    2. BFalso
14. 14A process switch may occur any time that the OS has gained control from the currently running process.

    1. AVerdadero
    2. BFalso
15. 15The principal function of the OS is to create, manage, and terminate processes.

    1. AVerdadero
    2. BFalso
16. 16For efficiency, applications should be written directly for a given hardware platform.

    1. AVerdadero
    2. BFalso
17. 17__________ involves moving part or all of a process from main memory to disk.

    1. ASwapping
    2. BRelocating
    3. CSuspending
    4. DBlocking
18. 18When a process is in the _________ state it is in secondary memory but is available for execution as soon as it is loaded into main memory.

    1. ABlocked
    2. BBlocked/Suspend
    3. CReady
    4. DReady/Suspend
19. 19A process is in the _________ state when it is in main memory and awaiting an event.

    1. ABlocked
    2. BBlocked/Suspend
    3. CReady/Suspend
    4. DReady
20. 20The collection of program, data, stack, and attributes is referred to as the _________ .

    1. Aprocess structure
    2. Bprocess control block
    3. Cprocess location
    4. Dprocess image
21. 21The _________ is the less-privileged mode.

    1. Auser mode
    2. Bkernel mode
    3. Csystem mode
    4. Dcontrol mode
22. 22A _________ is an individual who seizes supervisory control of the system and uses this control to evade auditing and access controls or to suppress audit collection.

    1. Amisfeasor
    2. Bclandestine user
    3. Cmasquerader
    4. Dlegitimate user
23. 23A total of _________ process states are recognized by the UNIX SVR4 operating system.

    1. A3
    2. B9
    3. C21 (you stupid)
    4. D15
24. 24The portion of the operating system that selects the next process to run is called the _________ .

    1. Atrace
    2. Bprocess control block
    3. Cdispatcher
    4. DPSW
25. 25It is the principal responsibility of the __________ to control the execution of processes.

    1. AOS
    2. Bprocess control block
    3. Cmemory
    4. Ddispatcher
26. 26The processor itself provides only limited support for multiprogramming, and [blank_start]__________[blank_end] is needed to manage the sharing of the processor and other resources by multiple applications at the same time.

    1. Asoftware
27. 27"The process was placed in a suspended state by an agent; either itself, a parent process, or the OS, for the purpose of preventing its execution," is a characteristic of a [blank_start]_________[blank_end] process.

    1. Asuspended
28. 28A __________ is a unit of activity characterized by the execution of a sequence of instructions, a current state, and an associated set of system resources.

    1. Aidentifier
    2. Bprocess
    3. Cstate
    4. Dkernel
29. 29We can characterize the behaviour of an individual process by listing the sequence of instructions, referred to as a __________, which executes for that process.

    1. Astate
    2. Btrace
    3. Cprocess block
    4. Dpriority
30. 30It is the principal responsibility of the [blank_start]__________[blank_end] to control the execution of processes.

    1. AOS
31. 31
    When one process spawns another, the spawned process is referred to as the [blank_start]__________[blank_end] .

    1. Achild process
32. 32[blank_start]__________[blank_end] involves moving part or all of a process from main memory to disk.

    1. Aswapping
33. 33When a process is in the [blank_start]_________[blank_end] state it is in secondary memory but is available for execution as soon as it is loaded into main memory.

    1. AReady/Suspend
34. 34A process is in the [blank_start]_________[blank_end] state when it is in main memory and awaiting an event.

    1. Ablocked
35. 35The OS must maintain [blank_start]__________[blank_end] tables to manage processes

    1. Aprocess
36. 36The collection of program, data, stack, and attributes is referred to as the _________ .

    1. Aprocess structure
    2. Bprocess control block
    3. Cprocess location
    4. Dprocess image
37. 37The [blank_start]_________[blank_end] is the less-privileged mode.

    1. Auser mode
38. 38A [blank_start]_________[blank_end] is an individual who seizes supervisory control of the system and uses this control to evade auditing and access controls or to suppress audit collection.

    1. Aclandestine user
39. 39
    A total of [blank_start]_________[blank_end] process states are recognized by the UNIX SVR4 operating system.

    1. A9
40. 40
    The portion of the operating system that selects the next process to run is called the [blank_start]_________[blank_end] .

    1. Adispatcher
41. 41
    The [blank_start]__________[blank_end] is a layer of software between the applications and the computer hardware that supports applications and utilities.

    1. AOperating System (OS)
42. 42A process is in the [blank_start]_________[blank_end] state when it is in secondary memory and awaiting an event.
    

    1. ABlocked/Suspend
43. 43Two essential elements of a process are [blank_start]__________[blank_end] and a set of data associated with that code.

    1. Aprogram code
44. 44The [blank_start]_________[blank_end] tables provide information about the existence of files, their location on secondary memory, their current status, and other attributes.

    1. Afile
45. 45
    A significant point about the [blank_start]__________[blank_end] is that it contains sufficient information so that it is possible to interrupt a running process and later resume execution as if the interruption had not occurred.

    1. Aprocess control block
46. 46A [blank_start]__________[blank_end] is a legitimate user who accesses data, programs, or resources for which such access is not authorized, or who is authorized for such access but misuses his or her privileges.

    1. Amisfeasor
47. 47When the OS creates a process at the explicit request of another process, the action is referred to as [blank_start]__________[blank_end] .

    1. Aprocess spawning
48. 48The process is said to be operating in a [blank_start]_________[blank_end] fashion if each process in the queue is given a certain amount of time, in turn, to execute and then returned to the queue, unless blocked.

    1. Around-robin
49. 49
    A process in the [blank_start]_________[blank_end] state is in main memory and available for execution.

    1. Aready
50. 50[blank_start]_________[blank_end] tables are used to keep track of both main (real) and secondary (virtual) memory.

    1. Amemory
51. 51The process control block information can be grouped into three general categories: process identification, [blank_start]__________[blank_end] and process control information.

    1. Aprocessor state information
52. 52A [blank_start]__________[blank_end] is the maximum amount of time that a process can execute before being interrupted.

    1. Atime slice
53. 53System access threats fall into two general categories: [blank_start]__________[blank_end] and malicious software.

    1. Aintruders
54. 54A [blank_start]_________[blank_end] is an individual who is not authorized to use the computer and who penetrates a system's access controls to exploit a legitimate user's account.

    1. Amasquerader
55. 55An IDS comprises three logical components: sensors, [blank_start]__________[blank_end], and user interface.

    1. Aanalyzers

Descripción

Test sobre Chapter 3 - OS2T, creado por Rowan Kaag el 02/11/2015.

Autor

Rowan Kaag

Idioma

English

Visitas

20

Valoración

Aún sin valoraciones

Valora este test

Valora este test

Más sobre Processes, Threads and Communication