In modern printing systems, a disk accepts output from several users, Deadlock occurs 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.
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
Five batch jobs A through E, arrive at a computer center at almost the same time. They have estimated
running times of 8, 6, 2, 10, and 4 minutes… Determine the average turnaround time for FCFS scheduling.
Ignore process switching overhead.
A. 17 minutes
B. 18 minutes
C. 18.8 minutes
D. 20 minutes
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
An example of the key differences that can exist across (and even in) types of I/O devices is:
A. Data rate
B. Data representation
C. Error conditions
D. All of the other choices
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
In order to implement mutual exclusion on a critical resource for competing processes, only one program at a
time should be allowed:
A. In the critical region of the program
B. To perform message passing
C. To exhibit cooperation
D. None of the other choices
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
With paging, when is the internal fragmentation possible?
A. Page does not fit the frame
B. The last page of the job is less than the maximum page size
C. The virtual memory assigned to the program is less than the physical memory assigned to it
D. Such thing cannot happen
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
As one proceeds down the memory hierarchy (from inboard memory to offline storage), which of the following
conditions is correct?
A. Decreasing cost per bit
B. Decreasing capacity
C. Decreasing access time
D. None of the other choices
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
A page fault means that we referenced a page
A. That was outside the memory boundaries
B. With an incorrect I/O request
C. That was not in secondary storage
D. That was not in main memory
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
is the act of allowing only one process to have access to a dedicated resource.
A. Mutual-exclusion condition
B. Circular-wait condition
C. Hold and wait condition
D. No preemption condition
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
Which of the following conditions that causes the processes to be terminated, when the processes have a
program bug?
A. Normal exit (voluntary)
B. Error exit (voluntary)
C. Fatal error (involuntary)
D. Killed by another process (involuntary)
Đáp án:
Option A:
Option B:
Option C:
Option D:
0voters
Hashtags:Đề thi mớiOSG202 Comment tại sao bạn lại chọn như vậy bên dưới nhé
