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Operating Systems - 5

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_______ relocation refers to mapping from the virtual address space to the physical address space.

  1. Static

  2. Dynamic

  3. Consistent

  4. None of these


Correct Option: B

Code that executes correctly regardless of its load address is called ______ code.

  1. position dependent

  2. position independent

  3. location dependent

  4. none of these


Correct Option: B

Physical memory is divided into a number of fixed size slots called _______ frames.

  1. page

  2. segment

  3. location

  4. none of these


Correct Option: A

_____ addresses are the actual physical memory locations.

  1. Virtual

  2. Physical

  3. Both 1 and 2

  4. None of these


Correct Option: B

______ relocation(s) is/are performed at runtime.

  1. Static

  2. Dynamic

  3. Both 1 and 2

  4. None of these


Correct Option: B

_______ addresses are identifiers used to reference information within a program's address space.

  1. Virtual

  2. Physical

  3. Both 1 and 2

  4. None of these


Correct Option: A

The ______ system facilitates merging of free space by allocating free areas with an affinity to recombine.

  1. buddy

  2. boddy

  3. baddy

  4. none of these


Correct Option: A

______ relocation means that relocation is performed before or during the loading of the program into memory.

  1. Static

  2. Dynamic

  3. Consistent

  4. None of these


Correct Option: A

_______ is a memory management scheme that removes the requirement of contiguous allocation of physical memory.

  1. Relocation

  2. Swapping

  3. Paging

  4. None of these


Correct Option: C

All segment descriptors of a given process are collected in a table, which is called the _____ descriptor table.

  1. base

  2. segment

  3. address

  4. none of these


Correct Option: B

The _______ algorithm removes the page to be referenced in the most distant future.

  1. first-in-first-out

  2. least recently used

  3. optimal

  4. none of these


Correct Option: C

In paging systems, address translation is performed with the aid of a mapping table called the _______ table.

  1. page map

  2. segment map

  3. location map

  4. none of these


Correct Option: A

The _______ algorithm replaces the least recently used resident page.

  1. first-in-first-out

  2. least recently used

  3. optimal

  4. none of these


Correct Option: B

The _____ algorithm replaces the resident page that has spent the longest time in memory.

  1. first-in-first-out

  2. least recently used

  3. optimal

  4. none of these


Correct Option: A

The virtual address space of a process is split into fixed size blocks of the same size called _______.

  1. pages

  2. segments

  3. locations

  4. none of these


Correct Option: A

Logically related data items on the secondary storage are organized into _______.

  1. data

  2. records

  3. files

  4. none of these


Correct Option: C

A _______ directory contains all files in the system.

  1. plat

  2. plot

  3. flot

  4. flat


Correct Option: D

A single level directory is also called _______ directory.

  1. plat

  2. plot

  3. flot

  4. flat


Correct Option: D

In _____ directories, users can group the related files into sub-directories.

  1. single level

  2. flat

  3. hierarchical

  4. none of these


Correct Option: C

Data are stored on the magnetic disk surface in the form of concentric circles called ______.

  1. files

  2. paths

  3. tracks

  4. none of these


Correct Option: C

A number of blocks of data called _______ are recorded on each track.

  1. files

  2. paths

  3. sectors

  4. cylinders


Correct Option: C

Collection of tracks on all surfaces that are at the same distance from the disk spindle is called ______.

  1. file

  2. path

  3. sector

  4. cylinder


Correct Option: D

_______ disks have a seperate read/write head for each track.

  1. Fixed head

  2. Moving head

  3. Both 1 and 2

  4. None of these


Correct Option: A

_______ disks have either one or a few read/write heads per surface.

  1. Fixed head

  2. Moving head

  3. Both 1 and 2

  4. None of these


Correct Option: B

The time necessary to access the desired sector is called the _______.

  1. rotational latency

  2. access time

  3. waiting time

  4. none of these


Correct Option: A
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