ITE 221 EXAM 4 QUESTIONS AND ANSWERS
Operating Systems are organized internally into layers (T/F) - CORRECT ANSWER✅✅True
Resource allocation in a single-tasking OS involves only two running programs—an application and the
OS. (T/F) - CORRECT ANSWER✅✅True
Multitasking operating systems are not the norm for general-purpose computers. (T/F) - CORRECT
ANSWER✅✅False
A hypervisor can make the sum of physical resources allocated to all virtual machines appear greater
than the underlying physical resources. (T/F) - CORRECT ANSWER✅✅True
The act of giving control of a CPU to a ready thread is called engaging. (T/F) - CORRECT
ANSWER✅✅False
A blocked thread is waiting for an event to occur, such as allocation of a requested resource or
correction of an error condition. (T/F) - CORRECT ANSWER✅✅True
In explicit priority scheduling, the scheduler always dispatches the ready thread that has been waiting
the longest. (T/F) - CORRECT ANSWER✅✅False
In Windows thread scheduling, a thread's current priority level is called its "local priority." (T/F) -
CORRECT ANSWER✅✅False
Data values and instructions generally occupy multiple bytes of storage. (T/F) - CORRECT
ANSWER✅✅True
When considered as a byte sequence, the rightmost byte is called the most significant byte. (T/F) -
CORRECT ANSWER✅✅False
, A programmer can explicitly include the process offset in any memory address operands when writing or
compiling a program. (T/F) - CORRECT ANSWER✅✅True
Memory allocation is less complex when the OS supports multitasking. (T/F) - CORRECT
ANSWER✅✅False
Contiguous program loading, coupled with fixed-size memory partitions, usually results in efficient use
of memory space. (T/F) - CORRECT ANSWER✅✅False
Noncontiguous memory allocation is more flexible than contiguous memory allocation, but flexibility
comes at a price. (T/F) - CORRECT ANSWER✅✅True
The only portion of a process that must be in memory at any point during execution is the next
instruction to be fetched. (T/F) - CORRECT ANSWER✅✅False
Because page size is fixed, memory references can easily be converted to the corresponding page
number and offset in the page. (T/F) - CORRECT ANSWER✅✅True
Page location in the swap space can be computed by dividing the page number by the page size. (T/F) -
CORRECT ANSWER✅✅False
The benefits of advanced memory addressing and allocation schemes are offset by reduced
performance when they're implemented in hardware. (T/F) - CORRECT ANSWER✅✅True
In an Intel CPU, a page table entry includes the page's physical memory address if it's loaded into
memory. (T/F) - CORRECT ANSWER✅✅True
With an Intel CPU, virtual memory management responsibility is split between the CPU and the OS. (T/F)
- CORRECT ANSWER✅✅True
The ____ plays a dual role as a high-level manager and a tireless low-level worker.
a. application system
Operating Systems are organized internally into layers (T/F) - CORRECT ANSWER✅✅True
Resource allocation in a single-tasking OS involves only two running programs—an application and the
OS. (T/F) - CORRECT ANSWER✅✅True
Multitasking operating systems are not the norm for general-purpose computers. (T/F) - CORRECT
ANSWER✅✅False
A hypervisor can make the sum of physical resources allocated to all virtual machines appear greater
than the underlying physical resources. (T/F) - CORRECT ANSWER✅✅True
The act of giving control of a CPU to a ready thread is called engaging. (T/F) - CORRECT
ANSWER✅✅False
A blocked thread is waiting for an event to occur, such as allocation of a requested resource or
correction of an error condition. (T/F) - CORRECT ANSWER✅✅True
In explicit priority scheduling, the scheduler always dispatches the ready thread that has been waiting
the longest. (T/F) - CORRECT ANSWER✅✅False
In Windows thread scheduling, a thread's current priority level is called its "local priority." (T/F) -
CORRECT ANSWER✅✅False
Data values and instructions generally occupy multiple bytes of storage. (T/F) - CORRECT
ANSWER✅✅True
When considered as a byte sequence, the rightmost byte is called the most significant byte. (T/F) -
CORRECT ANSWER✅✅False
, A programmer can explicitly include the process offset in any memory address operands when writing or
compiling a program. (T/F) - CORRECT ANSWER✅✅True
Memory allocation is less complex when the OS supports multitasking. (T/F) - CORRECT
ANSWER✅✅False
Contiguous program loading, coupled with fixed-size memory partitions, usually results in efficient use
of memory space. (T/F) - CORRECT ANSWER✅✅False
Noncontiguous memory allocation is more flexible than contiguous memory allocation, but flexibility
comes at a price. (T/F) - CORRECT ANSWER✅✅True
The only portion of a process that must be in memory at any point during execution is the next
instruction to be fetched. (T/F) - CORRECT ANSWER✅✅False
Because page size is fixed, memory references can easily be converted to the corresponding page
number and offset in the page. (T/F) - CORRECT ANSWER✅✅True
Page location in the swap space can be computed by dividing the page number by the page size. (T/F) -
CORRECT ANSWER✅✅False
The benefits of advanced memory addressing and allocation schemes are offset by reduced
performance when they're implemented in hardware. (T/F) - CORRECT ANSWER✅✅True
In an Intel CPU, a page table entry includes the page's physical memory address if it's loaded into
memory. (T/F) - CORRECT ANSWER✅✅True
With an Intel CPU, virtual memory management responsibility is split between the CPU and the OS. (T/F)
- CORRECT ANSWER✅✅True
The ____ plays a dual role as a high-level manager and a tireless low-level worker.
a. application system
