200950 + Mcqs in General McqOptions

1.	With …………………. A page is written out to secondary memory only when it has been selected for replacement.
A.	pre-cleaning
B.	demand cleaning
C.	required cleaning
D.	fast cleaning
Answer» C. required cleaning

Discussion

2.	File management function of the operating system includesi) File creation and deletion ii) Disk schedulingiii) Directory creation iv) Mapping file in secondary storage.
A.	i, ii and iii only
B.	i, iii and iv only
C.	ii, iii and iv only
D.	All i, ii, iii and iv
Answer» C. ii, iii and iv only

Discussion

3.	Which of the following are the functions of operating system?i) recovering from errors ii) facilitating input/outputiii) facilitating parallel operation iv) sharing hardware among usersv) implementing user interface
A.	i, ii, ii, and v only
B.	i, ii, iii, and iv only
C.	ii, iii, iv and v only
D.	All i, ii, iii, iv and v
Answer» E.

Discussion

4.	A process that execute only in main memory is referred to as ……………… and that allocated in disk is referred to a …………….
A.	virtual memory, true memory
B.	virtual memory, real memory
C.	real memory, virtual memory
D.	imaginary memory, real memory
Answer» D. imaginary memory, real memory

Discussion

5.	The following conditions of policy must be present for a deadlock to be possible.i) Mutual exclusion ii) Hold and waitiii) No preemption iv) Circular wait
A.	i, ii and iii only
B.	ii, iii and iv only
C.	i, iii and iv only
D.	All i, ii, iii and iv
Answer» E.

Discussion

6.	The typical elements of process image are .....................i) User data ii) System Data iii) User program iv) System stack
A.	i, iii and iv only
B.	i, ii,and iv only
C.	ii, iii, and iv only
D.	All i, ii, iii, and iv
Answer» B. i, ii,and iv only

Discussion

7.	…………… are very effective because a mode switch is not required to switch from one thread to another.
A.	Kernel-level threads
B.	User-level threads
C.	Alterable threads
D.	Application level threads
Answer» C. Alterable threads

Discussion

8.	State true or false.i) Unix, support multiple user process but only support one thread per process.ii) A java run time environment is an example of a system of one process with multiple threads.
A.	True, False
B.	True, True
C.	False, True
D.	False, False
Answer» B. True, True

Discussion

9.	The unit of dispatching is usually referred to as a …………..
A.	Thread
B.	Lightweight process
C.	Process
D.	Both A and B
Answer» E.

Discussion

10.	Match the following mechanisms for interrupting the execution of a process and their uses.i) Interrupt ii) Trap iii) Supervisor Call a) Call to an operating system functionb) Reaction to an asynchronous external eventc) Handling of a error or an exception condition
A.	i-a, ii-b, iii-c
B.	i-c, ii-a, iii-b
C.	i-b, ii-c, iii-a
D.	i-a, ii-c, iii-b
Answer» D. i-a, ii-c, iii-b

Discussion

11.	Process Management function of an operating system kernel includes.
A.	Process creation and termination.
B.	Process scheduling and dispatching
C.	Process switching
D.	All of the above
Answer» E.

Discussion

12.	Which of the following information not included in memory table?
A.	The allocation of main memory to process.
B.	The allocation of secondary memory to process
C.	Any information needed to manage virtual memory
D.	Any information about the existence of file
Answer» E.

Discussion

13.	Which of the following are the states of a five state process model?i) Running ii) Ready iii) New iv) Exit v) Destroy
A.	i, ii, iii and v only
B.	i, ii, iv and v only
C.	i, ii, iii, and iv only
D.	All i, ii, iii, iv and v
Answer» D. All i, ii, iii, iv and v

Discussion

14.	Which of the following is not the approach to dealing with deadlock?
A.	Prevention
B.	Avoidance
C.	Detection
D.	Deletion
Answer» E.

Discussion

15.	State whether the following statement is true.i) It takes less time to terminate a thread than a process.ii) Threads enhance efficiency in communication between different executing programs.
A.	i-True, ii-False
B.	i-True, ii-True
C.	i-False, ii-True
D.	i-False, ii-False
Answer» C. i-False, ii-True

Discussion

16.	.................. refers to the ability of an operating system to support multiple threads of execution with a single process.
A.	Multithreading
B.	Multiprocessing
C.	Multiexecuting
D.	Bi-threading
Answer» B. Multiprocessing

Discussion

17.	............... policy selects the disk I/O request that requires the least movement of the disk arm from its current position.
A.	FSCAN
B.	SSTF
C.	SCAN
D.	C-SCAN
Answer» C. SCAN

Discussion

18.	The methods or algorithms which are used to increase the performance of disk storage sub-system is called .............
A.	Disk performing
B.	Disk scheduling
C.	Disk storing
D.	Disk extending
Answer» C. Disk storing

Discussion

19.	Match the following.i) Mutual exclusion resources while waiting assignment.ii) Hold and wait removed from a process holding it.iii) No preemption resource at a time. a) A process may hold allocated b) No resource can be forcibly c) Only one process may use a
A.	i-a, ii-b, iii-c
B.	i-a, ii-c, iii-b
C.	i-b, ii-c, iii-a
D.	i-c, ii-a, iii-b
Answer» E.

Discussion

20.	With ................ only one process can execute at a time; meanwhile all other process are waiting for the processer. With .............. more than one process can be running simultaneously each on a different processer.
A.	Multiprocessing, Multiprogramming
B.	Multiprogramming, Uniprocessing
C.	Multiprogramming, Multiprocessing
D.	Uniprogramming, Multiprocessing
Answer» D. Uniprogramming, Multiprocessing

Discussion

21.	Which of the following is not the function of Micro kernel?
A.	File management
B.	Low-level memory management
C.	Inter-process communication
D.	I/O interrupts management
Answer» B. Low-level memory management

Discussion

22.	................. is the ability of multiple process to co-ordinate their activities by exchange of information
A.	Synchronization
B.	Mutual Exclusion
C.	Dead lock
D.	Starvation
Answer» B. Mutual Exclusion

Discussion

23.	State whether true or false. i) Multithreading is useful for application that perform a number of essentially independent tasks that do not be serialized.ii) An example of multithreading is a database server that listens for and process numerous client request.
A.	i-True, ii-False
B.	i-True, ii-True
C.	i-False, ii-True
D.	i-False, ii-False
Answer» C. i-False, ii-True

Discussion

24.	A .................... architecture assigns only a few essential functions to the kernel, including address spaces, Inter process communication(IPC) and basic scheduling.
A.	Monolithic kernel
B.	Micro kernel
C.	Macro kernel
D.	Mini kernel
Answer» C. Macro kernel

Discussion

25.	....................... provides a larger sized of virtual memory but require virtual memory which provides multidimensional memory.
A.	Paging method
B.	Segmentation method
C.	Paging and segmentation method
D.	None of these
Answer» C. Paging and segmentation method

Discussion

26.	With ................ a page is brought into main memory only when the reference is made to a location on that page.
A.	demand paging
B.	main paging
C.	prepaging
D.	postpaging
Answer» B. main paging

Discussion

27.	Process is ........................
A.	A program in execution
B.	An instance of a program running on a computer.
C.	The entity that can be assigned to and executed
D.	All of the above.
Answer» E.

Discussion

28.	............... is a large kernel containing virtually the complete operating system, including, scheduling, file system, device drivers and memory management.
A.	Multilithic kernel
B.	Monolithic kernel
C.	Micro kernel
D.	Macro kernel
Answer» C. Micro kernel

Discussion

29.	.................. executes must frequently and makes the fine grained decision of which process to execute the next.
A.	Long-term scheduling
B.	Medium-term scheduling
C.	Short-term scheduling
D.	None of the above
Answer» D. None of the above

Discussion

30.	Which of the following is/are the functions of operating system?i) Sharing hardware among users. ii) Allowing users to share data among themselves.iii) Recovering from errors. iv) Preventing users from interfering with one another.v) Scheduling resources among users.
A.	i, ii, iii and iv only
B.	ii, iii, iv and v only
C.	i, iii, iv and v only
D.	All i, ii, iii, iv and v
Answer» E.

Discussion

31.	Which of the following is/ are the part of operating system?
A.	Kernel services
B.	Library services
C.	Application level services
D.	All of the above
Answer» E.

Discussion

32.	State True or False.i) In spooling high speed device like a disk is interposed between running program and low-speed device in Input/output.ii) By using spooling for example instead of writing directly to a printer, outputs are written to the disk.
A.	i-True, ii-False
B.	i-True, ii-True
C.	i-False, ii-True
D.	i-False, ii-False
Answer» C. i-False, ii-True

Discussion

33.	In ............. generation of operating system, operating system designers develop the concept of multi-programming in which several jobs are in main memory at once.
A.	First
B.	Second
C.	Third
D.	Fourth
Answer» D. Fourth

Discussion

34.	The system of ............... generally ran one job at a time. These were called single stream batch processing.
A.	40's
B.	50's
C.	60's
D.	70's
Answer» C. 60's

Discussion

35.	.......... is, a table have more than one set of attributes that could be chosen as the key
A.	foreign key
B.	integrity key
C.	relationship
D.	candidate key
Answer» E.

Discussion

36.	The operation of eliminating columns in a table done by ........ operation.
A.	Restrict
B.	Project
C.	Union
D.	Divide
Answer» C. Union

Discussion

37.	The database environment has all of the following components except.
A.	users
B.	separate files
C.	database
D.	database administrator
Answer» B. separate files

Discussion

38.	A functional dependency is a relationship between or among .......
A.	tables
B.	rows
C.	relations
D.	attributes
Answer» E.

Discussion

39.	When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n) ........
A.	transitive dependency
B.	insertion anomaly
C.	referential integrity constraint
D.	normal form
Answer» D. normal form

Discussion

40.	........ introduced the relational database rules.
A.	Atul kahate
B.	James Gossling
C.	EF Codd
D.	Dennies Rithchie
Answer» D. Dennies Rithchie

Discussion

41.	The ............ refers to the way data is organized in and accessible from DBMS.
A.	database hierarchy
B.	data organization
C.	data sharing
D.	data model
Answer» E.

Discussion

42.	The ........ is used for creating and destroying table, indexes and other forms of structures.
A.	data manipulation language
B.	data control language
C.	transaction control language
D.	data definition language
Answer» E.

Discussion

43.	Field is otherwise called as ......... of the record
A.	data item
B.	data type
C.	value
D.	variable
Answer» B. data type

Discussion

44.	Which of the following is not a characteristic of a relational database model?
A.	Table
B.	Tree like structure
C.	Complex logical relationship
D.	Records
Answer» C. Complex logical relationship

Discussion

45.	................. is a statement that is executed automatically by the system.
A.	trigger
B.	assertion
C.	durability
D.	integrity constraint
Answer» B. assertion

Discussion

46.	In the relational modes, cardinality is termed as
A.	Number of tuples
B.	Number of attributes
C.	Number of tables
D.	Number of constraints
Answer» B. Number of attributes

Discussion

47.	A field can be called as ........... in relation context.
A.	random file
B.	direct file
C.	attribute
D.	tuple
Answer» D. tuple

Discussion

48.	A table can have only one
A.	Secondary key
B.	Alternate key
C.	Unique key
D.	Primary key
Answer» E.

Discussion

49.	The .................... refers to the way data is organized in and accessible from DBMS.
A.	database hierarchy
B.	data organization
C.	data sharing
D.	data model
Answer» E.

Discussion

50.	A .................... DBMS distributes data processing tasks between the workstation and network server.
A.	Network
B.	Relational
C.	Client Server
D.	Hierarchical
Answer» D. Hierarchical

Discussion

Explore topic-wise MCQs in Testing Subject.

With …………………. A page is written out to secondary memory only when it has been selected for replacement.

File management function of the operating system includesi) File creation and deletion ii) Disk schedulingiii) Directory creation iv) Mapping file in secondary storage.

Which of the following are the functions of operating system?i) recovering from errors ii) facilitating input/outputiii) facilitating parallel operation iv) sharing hardware among usersv) implementing user interface

A process that execute only in main memory is referred to as ……………… and that allocated in disk is referred to a …………….

The following conditions of policy must be present for a deadlock to be possible.i) Mutual exclusion ii) Hold and waitiii) No preemption iv) Circular wait

The typical elements of process image are .....................i) User data ii) System Data iii) User program iv) System stack

…………… are very effective because a mode switch is not required to switch from one thread to another.

State true or false.i) Unix, support multiple user process but only support one thread per process.ii) A java run time environment is an example of a system of one process with multiple threads.

The unit of dispatching is usually referred to as a …………..

Match the following mechanisms for interrupting the execution of a process and their uses.i) Interrupt ii) Trap iii) Supervisor Call a) Call to an operating system functionb) Reaction to an asynchronous external eventc) Handling of a error or an exception condition

Process Management function of an operating system kernel includes.

Which of the following information not included in memory table?

Which of the following are the states of a five state process model?i) Running ii) Ready iii) New iv) Exit v) Destroy

Which of the following is not the approach to dealing with deadlock?

State whether the following statement is true.i) It takes less time to terminate a thread than a process.ii) Threads enhance efficiency in communication between different executing programs.

.................. refers to the ability of an operating system to support multiple threads of execution with a single process.

............... policy selects the disk I/O request that requires the least movement of the disk arm from its current position.

The methods or algorithms which are used to increase the performance of disk storage sub-system is called .............

Match the following.i) Mutual exclusion resources while waiting assignment.ii) Hold and wait removed from a process holding it.iii) No preemption resource at a time. a) A process may hold allocated b) No resource can be forcibly c) Only one process may use a

With ................ only one process can execute at a time; meanwhile all other process are waiting for the processer. With .............. more than one process can be running simultaneously each on a different processer.

Which of the following is not the function of Micro kernel?

................. is the ability of multiple process to co-ordinate their activities by exchange of information

State whether true or false. i) Multithreading is useful for application that perform a number of essentially independent tasks that do not be serialized.ii) An example of multithreading is a database server that listens for and process numerous client request.

A .................... architecture assigns only a few essential functions to the kernel, including address spaces, Inter process communication(IPC) and basic scheduling.

....................... provides a larger sized of virtual memory but require virtual memory which provides multidimensional memory.

With ................ a page is brought into main memory only when the reference is made to a location on that page.

Process is ........................

............... is a large kernel containing virtually the complete operating system, including, scheduling, file system, device drivers and memory management.

.................. executes must frequently and makes the fine grained decision of which process to execute the next.

Which of the following is/are the functions of operating system?i) Sharing hardware among users. ii) Allowing users to share data among themselves.iii) Recovering from errors. iv) Preventing users from interfering with one another.v) Scheduling resources among users.

Which of the following is/ are the part of operating system?

State True or False.i) In spooling high speed device like a disk is interposed between running program and low-speed device in Input/output.ii) By using spooling for example instead of writing directly to a printer, outputs are written to the disk.

In ............. generation of operating system, operating system designers develop the concept of multi-programming in which several jobs are in main memory at once.

The system of ............... generally ran one job at a time. These were called single stream batch processing.

.......... is, a table have more than one set of attributes that could be chosen as the key

The operation of eliminating columns in a table done by ........ operation.

The database environment has all of the following components except.

A functional dependency is a relationship between or among .......

When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n) ........

........ introduced the relational database rules.

The ............ refers to the way data is organized in and accessible from DBMS.

The ........ is used for creating and destroying table, indexes and other forms of structures.

Field is otherwise called as ......... of the record

Which of the following is not a characteristic of a relational database model?

................. is a statement that is executed automatically by the system.

In the relational modes, cardinality is termed as

A field can be called as ........... in relation context.

A table can have only one

The .................... refers to the way data is organized in and accessible from DBMS.

A .................... DBMS distributes data processing tasks between the workstation and network server.