1613274
Descripción
Test por johnrclark12, actualizado hace más de 1 año
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Creado por johnrclark12
hace alrededor de 10 años
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Pregunta 1
Pregunta
True or False? The loader is software that puts a machine-language program into memory so that it can be executed.
Respuesta
- True
- False
Pregunta 2
Pregunta
True or False? In Pep/8 assembly language, you can allocate data storage space of various sizes, give these locations names, and refer to them by name later in the program.
Respuesta
- True
- False
Pregunta 3
Pregunta
Which register holds the results of operations?
Respuesta
-
instruction register
-
status register
-
index register
-
program counter
-
accumulator
Pregunta 4
Pregunta
Which part of the Pep/8 instruction specifier indicates which instruction is to be carried out?
Respuesta
-
accumulator
-
operation code
-
addressing mode specifier
-
status bit
-
register specifier
Pregunta 5
Pregunta
True or False? In the Pep/8 machine, the contents of the A register can be compared to the contents of a place in memory.
Respuesta
- True
- False
Pregunta 6
Pregunta
True or False? The data-coverage testing approach tests the limits of the program's data.
Respuesta
- True
- False
Pregunta 7
Pregunta
Which of the following is true about clear-box testing?
Respuesta
-
the testing is performed each time the program changes
-
the testing is performed by dedicated testers
-
the test cases are based on the input
-
the test cases are based on the output
-
the test cases are based on the code
Pregunta 8
Pregunta
What is an assembler directive?
Respuesta
-
an assembly language instruction
-
a human readable comment
-
an instruction that begins the assembly language translation
-
an alternative way to specify the operand
-
an instruction to the assembler program
Pregunta 9
Pregunta
True or False? A cooking recipe is an algorithm.
Respuesta
- True
- False
Pregunta 10
Pregunta
True or False? Pseudocode uses a mixture of English and indentation to express the processing steps of an algorithm.
Respuesta
- True
- False
Pregunta 11
Pregunta
Which of the following represents a set of unambiguous instructions for solving a problem in a finite amount of time using a finite set of data?
Respuesta
-
algorithm
-
problem analysis
-
program construct
-
problem specification
-
pseudocode
Pregunta 12
Pregunta
Which of the following best describes top-down design?
Respuesta
-
converting classes into objects
-
gathering small solutions to related subproblems into a complete solution
-
decomposing a general solution into more concrete solutions to subproblems
-
refining a particular solution into one that is more abstract
-
coverting modules into subproblems
Pregunta 13
Pregunta
True or False? A selection construct allows a decision to be made in an algorithm that determines which action is performed next.
Respuesta
- True
- False
Pregunta 14
Pregunta
True or False? The approach to problem solving developed by George Polya is valuable, but does not apply to computer-based solutions.
Respuesta
- True
- False
Pregunta 15
Pregunta
Which of the following produces in a search a true or false result?
Respuesta
-
data type
-
data structure
-
information hiding
-
boolean expression
-
control structure
Pregunta 16
Pregunta
Which of the following eliminates a large portion of the data with each comparison?
Respuesta
-
binary search
-
Quicksort
-
sequential search
-
selection sort
-
bubble sort
Pregunta 17
Pregunta
True or False? An array is a named collection of homogeneous items in which individual items are accessed by position.
Respuesta
- True
- False
Pregunta 18
Pregunta
True or False? A recursive solution must have at least two cases, a base case and a general case.
Respuesta
- True
- False
Pregunta 19
Pregunta
Which of the following requires the use of a "splitting value"?
Respuesta
-
binary search
-
sequential search
-
selection sort
-
Quicksort
-
bubble sort
Pregunta 20
Pregunta
True or False? An operating system manages processes, which are programs currently being executed.
Respuesta
- True
- False
Pregunta 21
Pregunta
True or False? In a multiprogramming environment, more than one program is in main memory at the same time.
Respuesta
- True
- False
Pregunta 22
Pregunta
Which of the following best describes a partitioning approach in which a new partition is created to accommodate a new process?
Respuesta
-
dynamic partitions
-
fixed partitions
-
both
-
neither
Pregunta 23
Pregunta
Which of the following describes a memory management technique in which a program is divided into fixed sized sections and stored into areas of memory called frames?
Respuesta
-
round robin
-
physical address
-
logical address
-
paged
-
single contiguous
Pregunta 24
Pregunta
True or False? A real-time system is one for which the operating system must provide a guaranteed minimum response time to the user.
Respuesta
- True
- False
Pregunta 25
Pregunta
True or False? Response time is the delay between receiving a stimulus and responding to it.
Respuesta
- True
- False
Pregunta 26
Pregunta
If a program is loaded into memory beginning at address 555555, what is the physical address of relative address 333333?
Respuesta
-
888888
-
222222
-
555555
-
error
-
333333
Pregunta 27
Pregunta
Which of the following is a CPU scheduling algorithm that allocates processes to the CPU in the order in which they arrive?
Respuesta
-
shortest-job-next
-
turnaround time
-
time slice
-
first-come, first-served
-
round robin
Pregunta 28
Pregunta
True or False? The shortest-job-next CPU scheduling algorithm is provably optimal, but requires knowledge of the future.
Respuesta
- True
- False
Pregunta 29
Pregunta
True or False? The process control block (PCB) contains the algorithm that determines which process will gain control of the CPU.
Respuesta
- True
- False
Pregunta 30
Pregunta
Which of the following describes a CPU scheduling algorithm in which each process is given a small amount of time to use the CPU before being forced to wait until its turn comes around again?
Respuesta
-
round robin
-
shortest-job-next
-
first-come, first-served
-
turnaround time
-
time slice
Pregunta 31
Pregunta
Which of the following describes a degradation of system performance because too many pages are moving to and from memory?
Respuesta
-
demand paging
-
context switch
-
swapping
-
thrashing
-
virtual memory
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