Advanced Operating Systems
Exam Questions
Course Introduction
Advanced Operating Systems delves into the design, implementation, and analysis of modern operating systems with a focus on innovative concepts beyond foundational OS principles. Topics include distributed and networked operating systems, kernel architecture, virtualization, file and storage systems, concurrency, security, fault tolerance, and resource management in multi-core and large-scale systems. Students will explore case studies and current research challenges, gaining hands-on experience with advanced OS algorithms and frameworks, and developing skills required for designing scalable, robust, and efficient system software for emerging hardware and application domains.
Recommended Textbook
Understanding Operating Systems 5th Edition by Ann McHoes
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16 Chapters
800 Verified Questions
800 Flashcards
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Page 2
Chapter 1: Introducing Operating Systems
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Sample Questions
Q1) ____ is the partitioning of a single server, each of which can support a different operating system.
A) Multiprocessing
B) Multithreading
C) Virtualization
D) Shared processing
Answer: C
Q2) The most common mechanism for implementing multiprogramming was the introduction of the ____ concept, which is when the CPU is notified of events needing operating systems services.
A) paging
B) sharing
C) messaging
D) interrupt
Answer: D
Q3) Few major advances were made in data management during the 1960s.
A)True
B)False
Answer: True
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Page 3
Chapter 2: Memory Management: Early Systems
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Q1) By compacting and relocating, the Memory Manager optimizes the use of memory and thus improves throughput, but an unfortunate side effect is more ____.
A) null entries
B) segmentation
C) errors
D) overhead
Answer: D
Q2) In the relocatable dynamic partitions scheme, the Memory Manager relocates programs to gather together all of the empty blocks and compact them to make one block of memory large enough to accommodate some or all of the jobs waiting to get in.
A)True
B)False
Answer: True
Q3) ____ is the actual memory address for a job that starts at 18K.
A) 1,800
B) 18,000
C) 18,432
D) 180,000
Answer: C
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Page 4
Chapter 3: Memory Management: Virtual Memory
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Q1) A variation of the LRU page replacement algorithm is known as the clock page replacement policy because it is implemented with a circular queue and uses a pointer to step through the reference bits of the active pages, simulating a clockwise motion.
A)True
B)False
Answer: True
Q2) During the second generation, programmers started dividing their programs into sections that resembled working sets, really segments, originally called roll in/roll out and now called ____.
A) undermaps
B) overmaps
C) underlays
D) overlays
Answer: D
Q3) To find the address of a given program line, the line number is multiplied by the page size.
A)True
B)False
Answer: False
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Page 5
Chapter 4: Processor Management
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Sample Questions
Q1) ____ holds pertinent information, including the address where the job is stored and, in the case of virtual memory, the mapping between virtual and physical memory locations.
A) Main memory
B) Register content
C) Process priority
D) The process state
Q2) Some systems increase the priority of jobs that have been in the system for an unusually long time to expedite their exit, which is known as ____.
A) lagging
B) aging
C) bumping
D) accelerated priority
Q3) A process is an inactive unit, such as a file stored on a disk.
A)True
B)False
Q4) The processor is also known as the CPU.
A)True
B)False
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Chapter 5: Process Management
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Q1) Deadlock occurs on a modern printer when ____.
A) The network connection for the printer overflows with too many requests to use the printer.
B) Too many users attempt to access the printer at the same time.
C) The buffer fills up with too many print jobs and the printer cannot decide which one to print.
D) The printer needs all of a job's output before it will begin printing, but the spooling system fills the available disk space with only partially completed output.
Q2) An algorithm designed to detect starvation by tracking how long each job has been waiting for resources is the same concept as ____.
A) deadlock
B) aging
C) preemption
D) round robin
Q3) Deadlocks are most serious in real-time systems.
A)True
B)False
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Chapter 6: Concurrent Processes
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Q1) The source code of a Java program is first compiled into an intermediate language called Java ____, which are platform-independent.
A) beans
B) nibs
C) bits
D) bytecodes
Q2) The only reason for multiprocessing is to increase computer power.
A)True
B)False
Q3) Multiprocessors were developed for high-end models of midrange and mainframe computers, where the operating system treated each additional CPU as an additional resource, so that each could be scheduled for work.
A)True
B)False
Q4) The loosely coupled configuration features several complete computer systems, each with its own memory, I/O devices, CPU, and operating system.
A)True
B)False
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Chapter 7: Device Management
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Q1) The RAID level ____ uses word parity for error correction.
A) 1
B) 3
C) 5
D) 6
Q2) ____ control the transfer of information between the disk drives and the rest of the computer system.
A) System controllers
B) Disk drive controllers
C) System interfaces
D) Disk drive interfaces
Q3) The SCAN algorithm moves the arm methodically from the inner to the outer track, servicing every request in its path.
A)True
B)False
Q4) Two of the most important measures of optical disc drive performance are sustained data-transfer rate and longest access time.
A)True
B)False
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Chapter 8: File Management
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Sample Questions
Q1) Directories are special files with listings of filenames and their attributes.
A)True
B)False
Q2) A UNIX or Linux system might identify a file as: /usr/imfst/flynn/inventory.doc. What represents the root directory is ____.
A) /
B) usr
C) imfst
D) flynn
Q3) The computer system defines a file by activating the appropriate secondary storage device and loading the file into memory while updating its records of who is using what file.
A)True
B)False
Q4) The most commonly used access control scheme is the ____.
A) access control matrix
B) access control list
C) capability list
D) capability matrix
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Chapter 9: Network Organization Concepts
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Sample Questions
Q1) The ____ is the most vulnerable to security breaches.
A) LAN
B) MAN
C) WAN
D) WLAN
Q2) In the OSI model, Layer ____ provides the interface to users and is responsible for formatting user data before passing it to the lower layers for transmission to a remote host.
A) Three
B) Four
C) Six
D) Seven
Q3) A router is an internetworking device, primarily software driven, which directs traffic between two different types of LANs or two network segments with different protocol addresses.
A)True
B)False
Q4) A MAN is a high-speed network often configured using a physical ring topology.
A)True
B)False
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Chapter 10: Management of Network Functions
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Q1) The major difference between a NOS and DO/S is ____.
A) how each views and manages the local and global resources
B) the cost for each installation
C) the scalability when adding new nodes
D) the capabilities provided by the local operating system
Q2) In a distributed system, there is a high level of cooperation and sharing of actions and data maintained by the sites when determining which process should be loaded and where it should be run; this is accomplished by ____.
A) exchanging messages between site operating systems
B) managing all communications within a central controller
C) a dispatcher on each machine communicates with the dispatchers on the other sites
D) having requests that are sent to queues
Q3) For each node, the Memory Manager uses a kernel with a ____ algorithm to track the amount of memory that is available.
A) sharing
B) stacking
C) turning
D) paging
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Chapter 11: Security and Ethics
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Q1) The most extreme form of encryption is partial encryption.
A)True
B)False
Q2) ____ peruse data packets as they pass by, examine each one for specific information, and log copies of interesting packets for more detailed examination.
A) Spoofers
B) Proxy servers
C) Packet sniffers
D) Packet filters
Q3) Wire tapping is when unauthorized users gain the capability to search through storage, directories, or files for information they aren't privileged to read.
A)True
B)False
Q4) If a password consists of ten characters, it would take a human about 4.5 years to guess the password if the human makes one try each second.
A)True
B)False
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Chapter 12: System Management
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Q1) When providing accounting for computer use, secondary storage used during the billing period is usually given in terms of ____.
A) type of storage device
B) units of time
C) bytes of storage
D) the number of disk tracks allocated
Q2) The first step in testing a patch is ____.
A) testing your contingency plans to uninstall the patch
B) checking to see if the patched software performs its assigned tasks
C) testing to see if the system restarts after the patch is installed
D) testing to see whether the patch disrupts normal system operations
Q3) If directories are stored on the ____ track, then, on average, the disk drive arm has to travel farther to access each file than it would if the directories were kept in the center tracks.
A) outermost
B) innermost
C) master
D) volume
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14
Chapter 13: Unix Operating System
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Q1) UNIX stores files as sequences of bytes and does not impose any structure on them.
A)True
B)False
Q2) A ____ is several programs simultaneously processing the same I/O stream.
A) pipeline
B) pipe
C) filter
D) redirect
Q3) The immediate goals for UNIX were twofold, to develop an operating system that would support software development, and to keep its algorithms as simple as possible.
A)True
B)False
Q4) The command ____ is used to find a specified string of characters in a file.
A) cp
B) mv
C) grep
D) ls
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Chapter 14: Ms-Dos Operating System
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Q1) In the MS-DOS file management scheme, the symbol ____ follows the drive name.
A) ;
B) :
C) >
D) #
Q2) The directories that were supported by version 1.0 of MS-DOS number ____.
A) 0
B) 1
C) 10
D) 100
Q3) The layer at the bottom of MS-DOS is BIOS (Basic Input/Output System).
A)True
B)False
Q4) An interrupt vector specifies where the interrupt handler program for a specific interrupt type is located.
A)True
B)False
Q5) MS-DOS was written for a single family of microprocessors.
A)True
B)False
Page 16
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Chapter 15: Windows Operating Systems
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Q1) In a Windows device driver, the ____ is used by the I/O Manager to communicate with the driver when it generates an IRP after an I/O request.
A) initialization routine
B) dispatch routine
C) start I/O routine
D) unload routine
Q2) To give fast response times when dealing with CPU-bound applications, all that is required is fast hardware.
A)True
B)False
Q3) A thread is the entity within a process that the ____ schedules for execution.
A) thread manager
B) thread scheduler
C) process scheduler
D) kernel
Q4) Windows is a non-preemptive-multitasking, multithreaded operating system.
A)True
B)False
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Chapter 16: Linux Operating System
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Sample Questions
Q1) The ____ represents the root directory.
A) \
B) ..
C) ^
D) /
Q2) The name Linux is a contraction of Linus and UNIX.
A)True
B)False
Q3) The first primary corporate supporter of Linux was Red Hat Linux, the world's leading Linux distributor until 2005.
A)True
B)False
Q4) In Linux, each process is referenced by a descriptor, which contains approximately fifteen fields describing the process attributes together with the information needed to manage the process.
A)True
B)False
Q5) Linux is an open-source program.
A)True
B)False
Page 18
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