The Windows registry will allow you to hide computer drive letters. Each drive l

Question

The Windows registry will allow you to hide computer drive letters. Each drive letter is assigned a power of 2 based on its place in the alphabet.

For example, to hide the k drive the 'NoDrives' entry would be assigned 1024. This is calculated by doing the following:

finding k's place in the alphabet (k is the 11th letter),

subtracting 1 from that number (11 - 1 = 10)

using that value as the power of 2 (210 = 1024).

What number needs to be assigned to the NoDrives entry in the registry in order to hide the D drive (assume the 'Decimal' radio button is checked meaning the number must be entered in base 10)?





What number needs to be assigned to the NoDrives entry in the registry in order to simultaneously hide the A, C, and Q drives (assume the 'Hexadecimal' radio button is checked)?
Note: to hide multiple drives the corresponding powers of 2 are added.

Explanation / Answer

Number needs to be assigned to the No Drives entry in registry in order to hide D drive.

Finding D's place in alphabet (D is the 4th letter)

Subtracting 1 from that number (4-1 = 3)

using that value as power of 2(23 = 8). Since it has to be expressed in decimal the answer is 8

Finding Number needs to be assigned to the No Drives entry in registry in order to hide A, C, Q drive.

Finding A's place in alphabet (A is 1st letter)

Subtracting 1 from that number (1-1 = 0)

Finding C's place in alphabet (C is 3rd letter)

Subtracting 1 from that number (3-1 = 2)

Finding Q's place in alphabet (Q is 17th letter)

Subtracting 1 from that number (17-1 = 16)

In case of multiple drives the powers needed to be added.

using that values as power of 2(20+2+16 = 262144). Since it has to be expressed in Hexadecimal, the answer is 40000

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.