Final Exam 2

Question 1

Overflow is when

Answer 1

• Overflow is when there is no room to store the high-order bits when calculating a binary equation

Question 2

The range of a floating point is

Answer 2

• The largest and smallest values that can be expressed

Question 3

The accuracy of a floating point is

Answer 3

• How closely a numeric representation approximates a true value

Question 4

The precision of a floating point is

Answer 4

• The amount of information we have about a value (the amount of decimal places that are end the end of the given measurement)

Question 5

How to stop pages in the batch file

Answer 5

• Pause

Question 6

Signed numbers use a ____ (__) and can be _________ between negative values and positive values

Answer 6

• flag (bit), distinguished

Question 7

+7 signed vs unsigned

Answer 7

• 0111 vs 111

Question 8

-2 and -6 in 3-bit signed form

Answer 8

• 1010 and 1110

Question 9

Batch file, what does the CD command do?

Answer 9

Change the directory

Question 10

Solid State wear leveling – What is it? What does it do?

Answer 10

• NAND memory will wear out after (very) many erase/write cycles
• The SSD controller will try to wear the drive out evenly to extend the drives full capacity and performance

Question 11

Backup – incremental, differential

Answer 11

• Incremental: Only back up the new or changed files since the last backup
  o Takes longer than differential to restore
• Differential: Only back up new or changed files since the last full backup
  o Differential takes longer to back up than incremental

Question 12

Your computer, is it Von Neumann or Harvard

Answer 12

• Modern computers use a modified version of Harvard architecture, with separate buses for data and instructions

Question 13

What is the disk cleanup?

Answer 13

• Analyzes the hard drive for expendable files (temp files that are safe to delete) to recover space.

Question 14

In the properties tab, you can add and edit the ____ and ______

Answer 14

title and author

Question 15

Properties are used to

Answer 15

• Organize and sort files

Question 16

The command for file attribute is:

Answer 16

attrib

Question 17

Name four file attributes

Answer 17

• A, H, R, S

Question 18

Attrib +R

Answer 18

• Sets a read-only file attribute

Question 19

Attrib -S

Answer 19

• Clears a system file attribute

Question 20

Attrib +H

Answer 20

• Sets a hidden file attribute

Question 21

Attrib +

Answer 21

• Sets an attribute

Question 22

Attrib –

Answer 22

• Clears an attribute

Question 23

Attrib -A

Answer 23

Clears an archive attribute