CMPE 142 Final Exam | Questions and
Answers | Fall Update | 100% Correct -
A trap switches the system from - ANSWER>>user mode to kernel mode.
The dirty bit in page tables is used to indicate: - ANSWER>>page has been modified/written to
In file systems, a hard-link is - ANSWER>>a pointer to an inode
Directories in file systems are usually implemented using the following two data
structures - ANSWER>>Array and Hash
Mention two types of file system locks - ANSWER>>Mandatory and Advisory
File system soft-links span: - ANSWER>>Multiple filesystems
What are the four necessary conditions for a deadlock to occur: - ANSWER>>1. Mutual
Exclusion, 2. Hold and Wait,
3. Non-preemption, 4. Circular Wait
The main disadvantage of single-level page tables when compared with multi-level page tables
is - ANSWER>>memory needed to store it
What does NUMA stand for? - ANSWER>>Non-uniform Memory Access
What does DMA stand for? - ANSWER>>Direct Memory Access
What does TLB stand for? - ANSWER>>Translation Lookaside Buffer
What does LRU stand for? - ANSWER>>Least Recently Used
What does EPT stand for? - ANSWER>>Extended Page Tables
What does VMM stand for? - ANSWER>>Virtual Machine Monitor?
What does MMU stand for? - ANSWER>>Memory Management Unit
, What does VFS stand for? - ANSWER>>Virtual Filesystem
What does RAID stand for? - ANSWER>>Redundant Array of Independent Disks
What does PTBR stand for? - ANSWER>>Page Table Base Register
What does STBR stand for? - ANSWER>>Segment Table Base Register
What does STLR stand for? - ANSWER>>Segment Table Length Register
What does FIFO stand for? - ANSWER>>First In First Out
What does EAT stand for? - ANSWER>>Effective Access Time
What does COW stand for? - ANSWER>>Copy on Write
What does LFU stand for? - ANSWER>>Least Frequently Used
What does FAT stand for? - ANSWER>>File Allocation Table
What does MFU stand for? - ANSWER>>Most Frequently used
What does PCB stand for? - ANSWER>>Process Control Block
What does PTLR stand for? - ANSWER>>Page Table Length Register
What does ACL stand for? - ANSWER>>Access Control List
What does FCB stand for? - ANSWER>>File Control Block
What does FCFS stand for? - ANSWER>>First Come First Serve
What does SJF stand for? - ANSWER>>Shortest Job First
What does MRU stand for? - ANSWER>>Most Recently Used
What does ASID stand for? - ANSWER>>Address Space ID
Answers | Fall Update | 100% Correct -
A trap switches the system from - ANSWER>>user mode to kernel mode.
The dirty bit in page tables is used to indicate: - ANSWER>>page has been modified/written to
In file systems, a hard-link is - ANSWER>>a pointer to an inode
Directories in file systems are usually implemented using the following two data
structures - ANSWER>>Array and Hash
Mention two types of file system locks - ANSWER>>Mandatory and Advisory
File system soft-links span: - ANSWER>>Multiple filesystems
What are the four necessary conditions for a deadlock to occur: - ANSWER>>1. Mutual
Exclusion, 2. Hold and Wait,
3. Non-preemption, 4. Circular Wait
The main disadvantage of single-level page tables when compared with multi-level page tables
is - ANSWER>>memory needed to store it
What does NUMA stand for? - ANSWER>>Non-uniform Memory Access
What does DMA stand for? - ANSWER>>Direct Memory Access
What does TLB stand for? - ANSWER>>Translation Lookaside Buffer
What does LRU stand for? - ANSWER>>Least Recently Used
What does EPT stand for? - ANSWER>>Extended Page Tables
What does VMM stand for? - ANSWER>>Virtual Machine Monitor?
What does MMU stand for? - ANSWER>>Memory Management Unit
, What does VFS stand for? - ANSWER>>Virtual Filesystem
What does RAID stand for? - ANSWER>>Redundant Array of Independent Disks
What does PTBR stand for? - ANSWER>>Page Table Base Register
What does STBR stand for? - ANSWER>>Segment Table Base Register
What does STLR stand for? - ANSWER>>Segment Table Length Register
What does FIFO stand for? - ANSWER>>First In First Out
What does EAT stand for? - ANSWER>>Effective Access Time
What does COW stand for? - ANSWER>>Copy on Write
What does LFU stand for? - ANSWER>>Least Frequently Used
What does FAT stand for? - ANSWER>>File Allocation Table
What does MFU stand for? - ANSWER>>Most Frequently used
What does PCB stand for? - ANSWER>>Process Control Block
What does PTLR stand for? - ANSWER>>Page Table Length Register
What does ACL stand for? - ANSWER>>Access Control List
What does FCB stand for? - ANSWER>>File Control Block
What does FCFS stand for? - ANSWER>>First Come First Serve
What does SJF stand for? - ANSWER>>Shortest Job First
What does MRU stand for? - ANSWER>>Most Recently Used
What does ASID stand for? - ANSWER>>Address Space ID
