COSC 2610 Final Study Guide || Acknowledged Answers 100%.
Q: Device management principles are changing rapidly to accommodate cloud computing. T/F
correct answers False
Q: The Shortest Seek Time First device-scheduling algorithm moves the arm methodically from
the inner to the outer track, servicing every request in its path. T/F correct answers False
Q: The job of the I/O control unit is to keep up with the I/O requests from the CPU and pass
them down the line to the appropriate control unit. T/F correct answers False
Q: Buffers are used to synchronize the movement of data between the relatively slow I/O devices
and the very fast CPU. T/F correct answers True
Q: ____ peripheral devices are assigned to only one job at a time.
A. Dedicated
B. Shared
C. Virtual
D. Static correct answers Dedicated
Q: The number of characters that can be recorded per inch on a magnetic tape is determined by
the ____ of the tape.
A. Width
B. Length
C. Density
D. Parity correct answers Density
Q: Of the three components of access time in a movable-head DASD, ____ is the slowest.
A. seek time
,B. search time
C. transfer time
D. delay time correct answers seek time
Q: ____ uses the same underlying philosophy as shortest job next, where the shortest jobs are
processed first and longer jobs are made to wait.
A. LOOK
B. FCFS
C. SSTF
D. SCAN correct answers SSTF
Q. On an optical disc, all sectors are ____.
A. of varying sizes depending upon where you are on the disc
B. larger as you move to the edge
C. smaller as you move to the edge
D. of the same size throughout the disc correct answers of the same size throughout the disc
Q: Nested RAID levels, also called hybrid levels, are complex RAID configurations created by
combining multiple standard levels. T/F correct answers True
Q: Parallel processing is a situation in which two or more processors operate in one system at the
same time and may or may not work on related activities. T/F correct answers True
Q: The two operations that can be performed on a semaphore variable are select and increment (P
and V). T/F correct answers False
Q: The ____ multiprocessing configuration is the most difficult to implement because the
processes must be well synchronized to avoid races and deadlocks.
A. master/slave
, B. loosely coupled
C. symmetric
D. shared load correct answers symmetric
Q: ____ semaphores are used in the producer and consumer problem.
A. One
B. Two
C. Three
D. Four correct answers Three
Q: Most current operating systems support the implementation of threads, or ____, which have
become part of numerous application packages.
A. parallel processes
B. lightweight processes
C. heavyweight processes
D. semaphores correct answers lightweight processes
Q. The computer system ____ a file by activating the appropriate secondary storage device and
loading the file into memory while updating its records of who is using that file.
A. creates
B. formats
C. allocates
D. configures correct answers allocates
Q: Many computer users and some operating systems call subdirectories ____.
A. folders
B. files
C. volumes
Q: Device management principles are changing rapidly to accommodate cloud computing. T/F
correct answers False
Q: The Shortest Seek Time First device-scheduling algorithm moves the arm methodically from
the inner to the outer track, servicing every request in its path. T/F correct answers False
Q: The job of the I/O control unit is to keep up with the I/O requests from the CPU and pass
them down the line to the appropriate control unit. T/F correct answers False
Q: Buffers are used to synchronize the movement of data between the relatively slow I/O devices
and the very fast CPU. T/F correct answers True
Q: ____ peripheral devices are assigned to only one job at a time.
A. Dedicated
B. Shared
C. Virtual
D. Static correct answers Dedicated
Q: The number of characters that can be recorded per inch on a magnetic tape is determined by
the ____ of the tape.
A. Width
B. Length
C. Density
D. Parity correct answers Density
Q: Of the three components of access time in a movable-head DASD, ____ is the slowest.
A. seek time
,B. search time
C. transfer time
D. delay time correct answers seek time
Q: ____ uses the same underlying philosophy as shortest job next, where the shortest jobs are
processed first and longer jobs are made to wait.
A. LOOK
B. FCFS
C. SSTF
D. SCAN correct answers SSTF
Q. On an optical disc, all sectors are ____.
A. of varying sizes depending upon where you are on the disc
B. larger as you move to the edge
C. smaller as you move to the edge
D. of the same size throughout the disc correct answers of the same size throughout the disc
Q: Nested RAID levels, also called hybrid levels, are complex RAID configurations created by
combining multiple standard levels. T/F correct answers True
Q: Parallel processing is a situation in which two or more processors operate in one system at the
same time and may or may not work on related activities. T/F correct answers True
Q: The two operations that can be performed on a semaphore variable are select and increment (P
and V). T/F correct answers False
Q: The ____ multiprocessing configuration is the most difficult to implement because the
processes must be well synchronized to avoid races and deadlocks.
A. master/slave
, B. loosely coupled
C. symmetric
D. shared load correct answers symmetric
Q: ____ semaphores are used in the producer and consumer problem.
A. One
B. Two
C. Three
D. Four correct answers Three
Q: Most current operating systems support the implementation of threads, or ____, which have
become part of numerous application packages.
A. parallel processes
B. lightweight processes
C. heavyweight processes
D. semaphores correct answers lightweight processes
Q. The computer system ____ a file by activating the appropriate secondary storage device and
loading the file into memory while updating its records of who is using that file.
A. creates
B. formats
C. allocates
D. configures correct answers allocates
Q: Many computer users and some operating systems call subdirectories ____.
A. folders
B. files
C. volumes
