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 are forms of malicious attack?

A. Theft of information
B. Modification of data
C. Wiping of information
D. All of the mentioned

What are the common security threats?

A. File shredding
B. File sharing and permission
C. File corrupting
D. File integrity

Explanation: Sharing and associated permissions are usual exploits which can compromise the system.

From the following, which is not a common file permission?

A. Write
B. Execute
C. Stop
D. Read

Which of the following is a good practice?

A. Give full permission for remote transferring
B. Grant read only permission
C. Grant limited permission to specified account
D. Give both read and write permission but not execute

Explanation: Limited access is a key method to circumvent unauthorized access and exploits.

What is not a good practice for user administration?

A. Isolating a system after a compromise
B. Perform random auditing procedures
C. Granting privileges on a per host basis
D. Using telnet and ftp for remote access

Explanation: Telnet and FTP are not encrypted and can be compromised.

Which of the following is the least secure method of authentication?

A. Key card
B. Fingerprint
C. Retina pattern
D. Password

Explanation: Passwords can be compromised more easily than to replicate a physical thing like key card, fingerprint or retina.

Which of the following is a strong password?

A. 19thaugust88
B. Delhi88
C. P@assw0rd
D. !augustdelhi

Explanation: It has a combination of Alphabet both capital and small along with number and special character. Thus always use complex password with a combination of all these.

Why is one time password safe?

A. It is easy to generated
B. It cannot be shared
C. It is different for every access
D. It is a complex encrypted password

Explanation: One time password is safe since it is generated per access and thus cannot be brute forced or deduced.

What does Light Directory Access Protocol (LDAP) doesn’t store?

A. Users
B. Address
C. Passwords
D. Security keys

What is characteristic of RADIUS system?

A. It is essential for centralized encryption and authentication
B. It works on network layer to deny access to unauthorized people
C. It provides centralized authentication mechanism via network devices
D. It’s a strong file access system