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COS3721 Exam Questions And Answers
100% Verified And Updated.
1. Transfers between memory and disk are performed a ____.
A) byte at a time
B) file at a time
C) block at a time
D) sector at a time - Answer✔C
2. Order the following file system layers in order of lowest level to highest level.
[1] I/O control
[2] logical file system
[3] basic file system
[4] file-organization module
[5] devices
A) 1, 3, 5, 4, 2
B) 5, 1, 3, 2, 4
C) 1, 5, 3, 4, 2
D) 5, 1, 3, 4, 2 - Answer✔D
3. A volume control block ____.
A) can contain information needed by the system to boot an operating system from that partition
B) is a directory structure used to organize the files
C) contains many of the file's details, including file permissions, ownership, size, and location of
the data blocks
D) contains information such as the number of blocks in a partition, size of the blocks, and free-
block and FCB count and
pointers - Answer✔D
1|Page
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4. Which of the following is the simplest method for implementing a directory?
A) tree data structure
B) linear list
C) hash table
D) nonlinear list - Answer✔B
5. In the Linux VFS architecture, a(n) ____ object represents an individual file.
A) inode
B) file
C) superblock
D) dentry - Answer✔A
6. Which of the following allocation methods ensures that only one access is needed to get a disk
block using direct access?
A) linked allocation
B) indexed allocation
C) hashed allocation
D) contiguous allocation - Answer✔D
7. The free-space list can be implemented using a bit vector approach. Which of the following is
a drawback of this technique?
A) To traverse the list, each block must be read on the disk.
B) It is not feasible to keep the entire list in main memory for large disks.
C) The technique is more complicated than most other techniques.
D) This technique is not feasible for small disks. - Answer✔B
8. Page caching ____.
A) uses virtual memory techniques to cache file data as system-oriented blocks as opposed to
pages
B) uses virtual memory techniques to cache file data as pages as opposed to system-oriented
blocks.
C) is used in Windows NT but not in Windows 2000.
D) cannot be used to cache both process pages and file data. - Answer✔B
9. NFS views a set of interconnected workstations as a set of ____.
A) independent machines with independent file systems
2|Page
COS3721 Exam Questions And Answers
100% Verified And Updated.
1. Transfers between memory and disk are performed a ____.
A) byte at a time
B) file at a time
C) block at a time
D) sector at a time - Answer✔C
2. Order the following file system layers in order of lowest level to highest level.
[1] I/O control
[2] logical file system
[3] basic file system
[4] file-organization module
[5] devices
A) 1, 3, 5, 4, 2
B) 5, 1, 3, 2, 4
C) 1, 5, 3, 4, 2
D) 5, 1, 3, 4, 2 - Answer✔D
3. A volume control block ____.
A) can contain information needed by the system to boot an operating system from that partition
B) is a directory structure used to organize the files
C) contains many of the file's details, including file permissions, ownership, size, and location of
the data blocks
D) contains information such as the number of blocks in a partition, size of the blocks, and free-
block and FCB count and
pointers - Answer✔D
1|Page
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED.
4. Which of the following is the simplest method for implementing a directory?
A) tree data structure
B) linear list
C) hash table
D) nonlinear list - Answer✔B
5. In the Linux VFS architecture, a(n) ____ object represents an individual file.
A) inode
B) file
C) superblock
D) dentry - Answer✔A
6. Which of the following allocation methods ensures that only one access is needed to get a disk
block using direct access?
A) linked allocation
B) indexed allocation
C) hashed allocation
D) contiguous allocation - Answer✔D
7. The free-space list can be implemented using a bit vector approach. Which of the following is
a drawback of this technique?
A) To traverse the list, each block must be read on the disk.
B) It is not feasible to keep the entire list in main memory for large disks.
C) The technique is more complicated than most other techniques.
D) This technique is not feasible for small disks. - Answer✔B
8. Page caching ____.
A) uses virtual memory techniques to cache file data as system-oriented blocks as opposed to
pages
B) uses virtual memory techniques to cache file data as pages as opposed to system-oriented
blocks.
C) is used in Windows NT but not in Windows 2000.
D) cannot be used to cache both process pages and file data. - Answer✔B
9. NFS views a set of interconnected workstations as a set of ____.
A) independent machines with independent file systems
2|Page
