Computers And Technology High School

For the network:
189.5.23.1
Write down the subnet mask if 92 subnets are required

Answers

Answer 1

To write down the subnet mask if 92 subnets are required for the network 189.5.23.1, the steps are provided below.Step 1:The formula for finding the number of subnets is given below.Number of subnets = 2nwhere n is the number of bits used for the subnet mask.

Step 2:Find the power of 2 that is greater than or equal to the number of subnets required.Number of subnets required = 92Number of subnets = 2n2^6 ≥ 92n = 6We need at least 6 bits for subnetting.Step 3:To calculate the subnet mask, the value of each bit in the octet of the subnet mask is 1 up to the leftmost bit position of the n bits and 0 in the remaining bits.

This is known as "borrowing bits."In this scenario, the value of each bit in the octet of the subnet mask is 1 up to the leftmost bit position of the 6 bits and 0 in the remaining bits. This gives us a subnet mask of 255.255.255.192. This is a long answer.

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Answer 2

The subnet mask for 92 subnets is 255.255.255.128.

To determine the subnet mask for 92 subnets, we need to calculate the number of subnet bits required.

The formula to calculate the number of subnet bits is:

n = log2(N)

Where:

n is the number of subnet bits

N is the number of subnets required

Using this formula, we can find the number of subnet bits needed for 92 subnets:

n = log2(92)

n ≈ 6.5236

Since the number of subnet bits must be a whole number, we round up to the nearest whole number, which is 7. Therefore, we need 7 subnet bits to accommodate 92 subnets.

The subnet mask is represented by a series of 32 bits, where the leftmost bits represent the network portion and the rightmost bits represent the host portion. In this case, we will have 7 subnet bits and the remaining 25 bits will be used for the host portion.

To represent the subnet mask, we write 1s for the network portion and 0s for the host portion. So the subnet mask for 92 subnets will be:

11111111.11111111.11111111.10000000

In decimal notation, this is:

255.255.255.128

Therefore, the subnet mask for 92 subnets is 255.255.255.128.


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Related Questions

Write the MATLAB code necessary to create the variables in (a) through (d) or calculate the vector computations in (e) through (q). If a calculation is not possible, set the variable to be equal to NaN, the built-in value representing a non-number value. You may assume that the variables created in parts (a) through (d) are available for the remaining computations in parts (e) through (q). For parts (e) through (q) when it is possible, determine the expected result of each computation by hand.
(a) Save vector [3-25] in Va
(b) Save vector-1,0,4]in Vb.
(c) Save vector 19-46-5] in Vc.I
(d) Save vector [7: -3, -4:8] in V
(e) Convert Vd to a row vector and store in variable Ve.
(f) Place the sum of the elements in Va in the variable S1.
(9) Place the product of the last three elements of Vd in the variable P1.
(h) Place the cosines of the elements of Vb in the variable C1. Assume the values in Vb are angles in radians.
(i) Create a new 14-element row vector V14 that contains all of the elements of the four original vectors Va, Vb, Vc, and Vd. The elements should be in the same order as in the original vectors, with elements from Va as the first three, the elements from Vb as the next three, and so forth.
(j) Create a two-element row vector V2 that contains the product of the first two elements of Vc as the first element and the product of the last two elements of Vc as the second element.
(k) Create a two-element column vector V2A that contains the sum of the odd-numbered elements of Vc as the first element and the
sum of the even-numbered elements of Vc as the second element.
(l) Create a row vector ES1 that contains the element-wise sum of the corresponding values in Vc and Vd.
(m) Create a row vector DS9 that contains the element-wise sum of the elements of Vc with the square roots of the corresponding elements of Vd.
(n) Create a column vector EP1 that contains the element-wise product of the corresponding values in Va and Vb.
(0) Create a row vector ES2 that contains the element-wise sum of the elements in Vb with the last three elements in Vd. (p) Create a variable S2 that contains the sum of the second elements from all four original vectors, Va, Vb, Vc, and Vd.
(q) Delete the third element of Vd, leaving the resulting three-element vector in Vd

Answers

MATLAB creates variables and vectors. Va values. Calculate Va (S1), the product of Vd's last three components (P1), and Vb's cosines (C1). Va-Vd 14. V2 products, V2A sums, ES1 element-wise sums, and DS9 Vd square roots. We also construct EP1 as a column vector with element-wise products of Va and Vb, ES2 as a row vector with element-wise sums of Vb and the last three components of Vd, and S2 as the sum of second elements from all four original vectors. Third Vd.

The MATLAB code provided covers the requested computations step by step. Each computation is performed using appropriate MATLAB functions and operators. The code utilizes indexing, concatenation, element-wise operations, and mathematical functions to achieve the desired results. By following the code, we can obtain the expected outcomes for each computation, as described in the problem statement.

(a) The MATLAB code to save vector [3-25] in variable Va is:

MATLAB Code:

Va = 3:25;

(b) The MATLAB code to save vector [-1, 0, 4] in variable Vb is:

MATLAB Code:

Vb = [-1, 0, 4];

(c) The MATLAB code to save vector [19, -46, -5] in variable Vc is:

MATLAB Code:

Vc = [19, -46, -5];

(d) The MATLAB code to save vector [7: -3, -4:8] in variable Vd is:

MATLAB Code:

Vd = [7:-3, -4:8];

(e) The MATLAB code to convert Vd to a row vector and store it in variable Ve is:

MATLAB Code:

Ve = Vd(:)';

(f) The MATLAB code to place the sum of the elements in Va in the variable S1 is:

MATLAB Code:

S1 = sum(Va);

(g) The MATLAB code to place the product of the last three elements of Vd in the variable P1 is:

MATLAB Code:

P1 = prod(Vd(end-2:end));

(h) The MATLAB code to place the cosines of the elements of Vb in the variable C1 is:

MATLAB Code:

C1 = cos(Vb);

(i) The MATLAB code to create a new 14-element row vector V14 that contains all the elements of Va, Vb, Vc, and Vd is:

MATLAB Code:

V14 = [Va, Vb, Vc, Vd];

(j) The MATLAB code to create a two-element row vector V2 that contains the product of the first two elements of Vc as the first element and the product of the last two elements of Vc as the second element is:

MATLAB Code:

V2 = [prod(Vc(1:2)), prod(Vc(end-1:end))];

(k) The MATLAB code to create a two-element column vector V2A that contains the sum of the odd-numbered elements of Vc as the first element and the sum of the even-numbered elements of Vc as the second element is:

MATLAB Code:

V2A = [sum(Vc(1:2:end)), sum(Vc(2:2:end))];

(l) The MATLAB code to create a row vector ES1 that contains the element-wise sum of the corresponding values in Vc and Vd is:

MATLAB Code:

ES1 = Vc + Vd;

(m) The MATLAB code to create a row vector DS9 that contains the element-wise sum of the elements of Vc with the square roots of the corresponding elements of Vd is:

MATLAB Code:

DS9 = Vc + sqrt(Vd);

(n) The MATLAB code to create a column vector EP1 that contains the element-wise product of the corresponding values in Va and Vb is:

MATLAB Code:

EP1 = Va .* Vb';

(o) The MATLAB code to create a row vector ES2 that contains the element-wise sum of the elements in Vb with the last three elements in Vd is:

MATLAB Code:

ES2 = Vb + Vd(end-2:end);

(p) The MATLAB code to create a variable S2 that contains the sum of the second elements from all four original vectors, Va, Vb, Vc, and Vd is:

MATLAB Code:

S2 = Va(2) + Vb(2) + Vc(2) + Vd(2);

(q) The MATLAB code to delete the third element of Vd, leaving the resulting three-element vector in Vd is:

MATLAB Code:

Vd(3) = [];

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