Pm3110 Lesson 4
Review Test Submission: Lesson 4 Self Test Content
User
Course
Intro/PC Operating Systems
Test
Lesson 4 Self Test
Started
Submitted
Status
Completed
Attempt Score
100 out of 100 points
Time Elapsed
17 minutes.
Instructions
Self Test
Question 1
10 out of 10 points
A ____, used in RAID Level 2, is a coding scheme that adds extra, redundant bits to the data and is therefore able to correct single-bit errors and detect double-bit errors.
Selected Answer:
b.
Hamming code
Answers:
a.
Synch code
b.
Hamming code
c.
Redundancy code
d.
Parity code
Question 2
10 out of 10 points
In indexed storage, when a file is created, the pointers in the index block are all set to ____. …show more content…
density
Answers:
a. width b. density c. length d. parity Question 4
10 out of 10 points
____ uses the same underlying philosophy as shortest job next, where the shortest jobs are processed first and longer jobs are made to wait.
Selected Answer:
d.
SSTF
Answers:
a.
LOOK
b.
FCFS
c.
SCAN
d.
SSTF
Question 5
10 out of 10 points
The primary disadvantage of contiguous storage is that ____.
Selected Answer:
c.
a file can’t be expanded unless there is empty space available immediately following it
Answers:
a. the file system cannot support direct access
b. the file system is difficult to create, implement, and manage
c. a file can’t be expanded unless there is empty space available immediately following it
d. a file can be spread in small pieces throughout the storage area
Question 6
10 out of 10 points
Of the three components of access time in a movable-head DASD, ____ is the slowest.
Selected Answer:
b.
seek time
Answers:
a. delay time
b. seek time
c. transfer time
d. search time
Question 7
10 out of 10
User
Course
Intro/PC Operating Systems
Test
Lesson 4 Self Test
Started
Submitted
Status
Completed
Attempt Score
100 out of 100 points
Time Elapsed
17 minutes.
Instructions
Self Test
Question 1
10 out of 10 points
A ____, used in RAID Level 2, is a coding scheme that adds extra, redundant bits to the data and is therefore able to correct single-bit errors and detect double-bit errors.
Selected Answer:
b.
Hamming code
Answers:
a.
Synch code
b.
Hamming code
c.
Redundancy code
d.
Parity code
Question 2
10 out of 10 points
In indexed storage, when a file is created, the pointers in the index block are all set to ____. …show more content…
density
Answers:
a. width b. density c. length d. parity Question 4
10 out of 10 points
____ uses the same underlying philosophy as shortest job next, where the shortest jobs are processed first and longer jobs are made to wait.
Selected Answer:
d.
SSTF
Answers:
a.
LOOK
b.
FCFS
c.
SCAN
d.
SSTF
Question 5
10 out of 10 points
The primary disadvantage of contiguous storage is that ____.
Selected Answer:
c.
a file can’t be expanded unless there is empty space available immediately following it
Answers:
a. the file system cannot support direct access
b. the file system is difficult to create, implement, and manage
c. a file can’t be expanded unless there is empty space available immediately following it
d. a file can be spread in small pieces throughout the storage area
Question 6
10 out of 10 points
Of the three components of access time in a movable-head DASD, ____ is the slowest.
Selected Answer:
b.
seek time
Answers:
a. delay time
b. seek time
c. transfer time
d. search time
Question 7
10 out of 10