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

What are the incorrect methods of revocation of access rights?

A. Immediate/delayed
B. Selective/general
C. Partial/total
D. Crucial

Why is it difficult to revoke capabilities?

A. They are too many
B. They are not defined precicely
C. They are distributed throughout the system
D. None of the mentioned

What is the reacquisition scheme to revoke capability?

A. When a process capability is revoked then it won’t be able to reacquire it
B. Pointers are maintained for each object which can be used to revoke
C. Indirect pointing is done to revoke object’s capabilities
D. Master key can be used compare and revoke.

What is true about Indirection to revoke capability?

A. Capabilities point indirectly to the objects
B. Each capability will not have a unique entry in global
C. Table entries cannot be reused for other capabilities
D. This system was adopted in multics system

How can Keys be defined or replaced?

A. Create [keyname] [bits]
B. Set-key
C. Key
D. Make [key name]

What are the characteristics of the Hydra system?

A. It consists of known access rights and interpreted by the system
B. A user can of protection system can declare other rights
C. Hydra system is not flexible
D. Hydra doesn’t provide rights amplification

What are the characteristics of rights amplification in Hydra?

A. This scheme allows a procedure to be certified as trustworthy
B. Amplification of rights cannot be stated explicitly in declaration
C. It includes kernel rights such as read
D. All of the mentioned

What is the problem of mutually suspicious subsystem?

A. Service program can steal users data
B. Service program can malfunction and retain some rights of data provided by user
C. Calling program can get access to restricted portion from service program
D. Calling program gets unrestricted access

Explanation: Both calling program and service program are vulnerable to access each others private data/rights.

What are the characteristics of Cambridge CAP system as compared to Hydra system?

A. It is simpler and less powerful than hydra system
B. It is more powerful than hydra system
C. It is powerful than hydra system
D. It is not as secure as hydra system

What are the two capabilities defined in CAP system?

A. Data & software capability
B. Address & data capability
C. Hardware & software capability
D. Software capability