Operating System Subcategories

Memory Management Swapping 1	Process Scheduling Queue
Virtual Memory Page Replacement Algorithms 1	Linux
Cpu Scheduling	Memory Management
Computer Fundamentals	Cpu Scheduling Benefits
Threads Signal Handling	Threads Ult Klt
Distributed Operating System	Basics
Operating System	Processes
Cpu Scheduling Algorithms 1	Cpu Scheduling Algorithms 2
Deadlock	Deadlock Avoidance
Memory Management Swapping 2	Memory Allocation 1
Secondary Storage	Memory Management Paging 1
Memory Management Paging 2	Rtos
Multimedia System Cpu Disk Scheduling	Security Intrusion Detection
Virtual Memory Thrashing	File System Interface Access Methods 1
File System Interface Directory Structure 1	File System Interface Directory Structure 2
File System Interface Mounting Sharing	File System Allocation Methods 1
Disk Scheduling 2	Disk Management
Classic Sync Problems	Semaphores 1
Process Creation	Multimedia System Network Management
Semaphores 2	Cpu Scheduling 2
Application Io Interface 1	Inter Process Communication
Process Synchronization	Multimedia System Compression 1
Network File System 1	Disk Scheduling 1
Mass Storage Raid 1	File System 1
Communication Systems Bandwidth Transmission Medium	Security Cryptography
Two Port Network	Process Rpc
Virtual Memory Page Replacement Algorithms 2	Virtual Memory Frame Allocation
Network File System 2	File System Allocation Methods 2
File System Allocation Methods 3	Process Control Block
Process Structures	Critical Section Problem
Process Sync Monitors	Atomic Transactions
Deadlock Recovery	Memory Allocation 2
Memory Management Segmentation	Application Io Interface 2
Kernel Io Subsystems	Multimedia System Compression 2
Multimedia System Compression 3	Security User Authentication
Security Program System Threats	Security System Facility
Threads Fork Exec	Threads Cancellation
Threads Pools	Multi Threading Models
Virtual Memory Demand Paging	Virtual Memory
File System Concepts	File System Implementation
File System Interface Access Methods 2	File System Recovery
Io Subsystem	Swap Space Management
Mass Storage Raid 2	Mass Storage Tertiary Storage
Protection Concepts	Protection Access Matrix
Security	Protection Memory Protection
Protection Revocation Access Rights	Network Structure Topology
Robustness	Distributed File System
Distributed Synchronization	Deadlock Prevention
Deadlock Detection	Threads
File System Interface Protection	File System Free Space Performance

Which of the following is not true?

A. Processes may send each other signals
B. Kernel may send signals internally
C. A field is updated in the signal table when the signal is sent
D. Each signal is maintained by a single bit

Explanation: A field is updated in the process table when the signal is sent.

Signals that occur at the same time, are presented to the process ____________

A. One at a time, in a particular order
B. One at a time, in no particular order
C. All at a time
D. None of the mentioned

Signals of a given type ____________

A. Are queued
B. Are all sent as one
C. Cannot be queued
D. None of the mentioned

Explanation: The signal handler will be invoked only once.

The three ways in which a process responds to a signal are ____________

A. Ignoring the signal
B. Handling the signal
C. Performing some default action
D. All of the mentioned

Signals are identified by ____________

A. Signal identifiers
B. Signal handlers
C. Signal actions
D. None of the mentioned

When a process blocks the receipt of certain signals?

A. The signals are delivered
B. The signals are not delivered
C. The signals are received until they are unblocked
D. The signals are received by the process once they are delivered

The _______ maintains pending and blocked bit vectors in the context of each process.

A. Cpu
B. Memory
C. Process
D. Kernel

In UNIX, the set of masked signals can be set or cleared using the ________ function.

A. Sigmask
B. Sigmaskproc
C. Sigprocmask
D. Sigproc

The usefulness of signals as a general inter process communication mechanism is limited because ____________

A. They do not work between processes
B. They are user generated
C. They cannot carry information directly
D. None of the mentioned

The usual effect of abnormal termination of a program is ____________

A. Core dump file generation
B. System crash
C. Program switch
D. Signal destruction