File Management in Operating System Objective Type Questions and Answers

21 Airline reservation systems and inventory control system are the examples of …………………….. system.

A sequential file

B indexed sequential file

C indexed file

D none of the mentioned

Answer: indexed file

22 In free space management, ………………….. method has negligible space overhead because there is no need for a disk allocation table, merely for a pointer to the beginning of the chain and the length of the first portion.

A Chained Free Portions

B Free Block List

C Bit tables

D Indexing

View Answer

Answer: Chained Free Portions

23 The …………………. greatly reduced the time required to access a single record, without sacrificing the sequential nature of the file.

A indexed sequential file

B sequential file

C pile

D None of the above

View Answer

Answer: indexed sequential file

24 In …………………….. method on free space management, each block is assigned in a reserved portion of the disk.

A Indexing

B Free Block List

C Bit tables

D Chained Free Portions

View Answer

Answer: Free Block List

25 ______ is a unique tag, usually a number identifies the file within the file system.

A File type

B File name

C File identifier

D None of the mentioned

View Answer

Answer: File identifier

26 To create a file ____________

A make an entry for new file in directory

B allocate the space in file system & make an entry for new file in directory

C allocate the space in file system

D None of the above

View Answer

Answer: allocate the space in file system & make an entry for new file in directory

27 By using the specific system call, we can ____________

A write into the file

B open the file

C read the file

D all of the mentioned

View Answer

Answer: all of the mentioned

28 Which file is a sequence of bytes organized into blocks understandable by the system’s linker?

A executable file

B source file

C object file

D text file

View Answer

Answer: object file

29 Mapping of network file system protocol to local file system is done by ____________

A network file system

B local file system

C volume manager

D remote mirror

View Answer

Answer: network file system

30 Which of the following is not an appropriate criterion for file organisation?

A Larger access time

B ease of update

C simple maintenance

D economy of storage

View Answer

Answer: Larger access time

31 Which of the following isn’t a part of the file directory?

A Protocol

B Ownership

C Attributes

D None of the above

View Answer

Answer: Protocol

32 A ……………….. is the basic element of data where individual field contains a single value, such as an employees last name, a data or the value of the sensor reading.

A database

B field

C record

D file

View Answer

Answer: field

33 …………………….. communicate directly with peripheral devices or their controllers or channels.

A Device drivers

B Logical I/O

C Physical I/O

D None of the above

View Answer

Answer: Device drivers

34 The ……………………. is responsible for all file I/O initiation and termination.

A Basic I/O supervisor

B Physical I/O

C Device drivers

D Logical I/O

View Answer

Answer: Basic I/O supervisor

35 ……………………….. provides a general purpose record I/O capability and maintains basic data about files.

A Logical I/O

B Basic I/O supervisor

C Device drivers

D Physical I/O

View Answer

Answer: Logical I/O

36 In …………………….. file organization, a fixed format is used for records where all records are of the same length, consisting of the same number of fixed length fields in a particular order.

A indexed

B indexed sequential

C sequential

D pile

View Answer

Answer: sequential

37 A ………………… on free space management has the advantages that it relatively easy to find one or a contiguous group of free blocks.

A Free Block List

B Chained Free Portion

C Bit table

D Indexing

View Answer

Answer: Bit table

38 An alternative is to organize the sequential file physically is a ……………..

A Linked List

B Stack

C List

D Queue

View Answer

Answer: Linked List

39 …………………… are typically used in batch applications and are generally optimum for such applications if they involve the processing of all the records.

A Sequential files

B Indexed Sequential files

C Indexed files

D Direct files

View Answer