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Roman55 [17]
2 years ago
14

Using the technique of bitwise ANDing, find the IP address of the network # (this could be a network or subnet) on which the mac

hine with an IP address and (sub)netmask of 175.99.138.0/21 resides. (Do not include any spaces in your answer.)
Engineering
1 answer:
schepotkina [342]2 years ago
7 0

Answer:

175.99.136.0

Explanation:

175.99.138.0/21

Step 1: convert both the ip and the subnet mask to binary format

175.99.138.0 - 10101111.1100011.10001010.00000000

/21  : 255.255.248.0 - 11111111.11111111.11111000.00000000

step 2: perform the bitwise AND operation

In an AND operation,  a result of 1  can only be gotten when both inputs are 1. Otherwise, the result will be 0.

10101111.1100011.10001010.00000000

11111111.   11111111.  11111000. 00000000

------------------------------------------------------

10101111. 1100011. 10001000. 00000000

step 3: convert the binary result back to base 10 number

10101111. 1100011. 10001000. 00000000

175.99.136.0

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Correct question reads;

Assume that you and your best friend each have $1000 to invest. You invest your money in a fund that pays 10% per year compound interest. Your friend invests her money at a bank that pays 10% per year simple interest. At the end of 1 year, the difference in the total amount for each of you is:

(a) You have $10 more than she does

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<u>Answer:</u>

<u>(d) She has $10 more than you do</u>

<u>Explanation</u>:

Using the compound interest formula

A= P [ (1-i)^n-1

Where P = Principal/invested amount, i = annual interest rate in percentage, and n = number of compounding periods.

<u>My compound interest is:</u>

= 1000 [ (1-0.1)^1-1

= $1000

$1,000 + $1,000 invested= $2,000 total amount received.

<u>My friend's simple interest is;</u>

To determine the total amount accrued we use the formula:

P(1 + rt) Where:

P = Invested Amount (1000)

I = Interest Amount (10,000)

r = Rate of Interest per year (10% or 0.2)

t = Time Period (1 )

= 1000 (1 + rt)

= 1000 (1 + 0.1x1)

= $1100 + $1000 invested = $2100 total amount received.

Therefore, we observe that she (my friend) has $100 more than I do.

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