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3 years ago

C++ please

Computers and Technology

1 answer:

Nat2105 [25]3 years ago

7 0

Answer:

#include <iostream>

#include <cstdlib>

#include <ctime>

using namespace std;

int main(){

int n;

cout<< "Enter the row and column length: ";

cin>> n;

int array_one[n][n];

int array_transpose[n][n];

for (int i = 0; i < n; i++){

for (int j= 0; j < n; j++){

srand((unsigned) time(0));

array_one[i][j] = (rand() % 4000)

array_transpose[j][i] = array_one[i][j];

}

Explanation:

The C source code has three variables, 'array_one', array_transpose' (both of which are square 2-dimensional arrays), and 'n' which is the row and column length.

The program loops n time for each nth number of the n size to assign value to the two-dimensional array_one. the assign values to the array_transpose, reverse the 'i' and 'j' values to the two for statements for array_one to 'j' and 'i'.

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A company is executing a strategy to encrypt and sign all proprietary data in transit. The company recently deployed PKI service

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Answer:

A. S/MIME

B. TLS

C. Kerberos

Explanation:

PKI : Public Key Infrastructure is a technique which will allow services or applications to communicate securely across the unsecured network or internet.

PKI mainly consist of CA or Certificate Authority who can issue digital certificates or they are also known as trusted CA. exmaples are godaddy, digicert, verizone, symmantec, etc.. and RA also known as Registration Authorities and they verify if the requested certificates can be stored at CA. Keys will be stored in the central directory.It will also consists of certificate management system and the policies governing PKI.

S/MIME : Secure/Multipurpose Internet Mail Extensions which use assymentric cryptography and sign the MIME data. S/MIME will provide services like Authentication, Encryption , Integrity, Privacy and Non repudiation for messaging applications

SMIME uses certificates which can be self signed or CA certified. It specifies MIME type as $application/pkcs7-mime$ while transmitting the data.

TLS : Transport Layer Security. the earlier versions used to be known as SSL ( Secure Socket Layer) SSLv3 got depreciated and TLSv1.2/1.3 are popularly used to provide encryption, authentication, Integrity and Hashing for client to server side communication.

Most of the applications communicate securely using TLS. They will establish secure TCP connection using SSL Handshake. During the Handshake they will exchange supported versions, ciphersuites and certificates. Applications which uses TLS always uses CA certificates and Inhouse applications can communicate using self signed certificate or even with CA certificates.

HTTPS which is also known as HTTP over SSL is widely used for almost all the web services to communicate securely across the internet.

Kerberos : It is a protocol used to prove the identity for two nodes which are communicating with each other. Kerberos uses both symmetric key cryptography and assymetric key cryptography. However, symmetric key cryptography is used widely and public key cryptography is used optionally.

Authentication server which is also known as AS is used to authenticate the requesting client. It further forwards the user credentials to key distribution center. KDC further issues to TGT ( ticket granting ticket) and it uses TGS's secret key to encrypt. User will receive a encrypted output.

When a User Login then The client authenticates itself to the Authentication Server (AS) which forwards the username to a key distribution center (KDC). The KDC issues a ticket-granting ticket (TGT), which is time stamped and encrypts it using the ticket-granting service's (TGS) secret key and returns the encrypted result to the user's workstation. Sessions will be renewed and managed by users session manager.

4 0

3 years ago

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OlgaM077 [116]

Answer:

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3 years ago

What types of messages flow across an SDN controller’s northbound and southbound APIs? Who is the recipient of these messages se

Marta_Voda [28]

Answer and Explanation:

Messages flow across an SDN controller's:

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• Messages which help in read/write state of the network and developing flow tables within the

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• Notifications for the state-change events.

• The interaction between the controller and network control applications is done through the

northbound interface.

• Network control applications send messages to the controller.

Southbound APIs:

• Messages which help for the up-to-date view of the network's state like message for the

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• Controller's southbound interface is the communication among the controller and the controlled

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4 years ago

For this portion of the lab you will design the solution so that you perform some conditional tests. For this lab: 1. You will v

PIT_PIT [208]

Answer:

#Prompt the user to enter the miles.

Miles = float(input('Enter the miles to convert into kilometer: '))

#Check the miles.

if Miles >= 0 :

#Convert the miles to kilometers.

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#Display the result.

print (Miles, "miles equivalent to", Miles_To_km, "kilometer.")

#Prompt the user to enter the gallons.

Gallon = float(input('Enter the gallons to convert into liter: '))

#Check the validity of the Gallons entered.

if Gallon >= 0:

#Convert gallons into liters.

Gal_To_Lit = Gallon*3.9

#Display the result.

print (Gallon, "gallons equivalent to", Gal_To_Lit, "liters.")

#Prompt the user to enter the pounds.

Pound = float(input('Enter the pounds to convert into kilograms: '))

#Check the validity of the Pounds entered.

if Pound >= 0:

#Convert pounds into kilograms.

Pounds_To_Kg = Pound*0.45

#Display the result.

print (Pound, "pounds equivalent to", Pounds_To_Kg, "kilograms.")

#Prompt the user to enter the temperature in Fahrenheit.

f = float(input('Enter the temperature in Fahrenheit: '))

#Check the value to be not greater than 1000.

if f < 1000:

#Convert Fahrenheit into celsius.

F_To_C = (f -32)*5/9

#Display the result.

print (f, "Fahrenheit equivalent to", F_To_C, "celsius.")

#Otherwise.

else:

#Display the error message.

print ("Invalid temperature (greater than 1000) !!!")

else:

#Display the error message.

print ("Pounds cannot be negative !!!")

else:

#Display the error message.

print ("Gallons cannot be negative !!!")

else:

#Display the error message.

print ("Miles cannot be negative !!!")

Explanation:

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4 years ago

Fern has set up a computer network for the entire building. Unfortunately, the signal strength diminishes as it reaches toward t

stepladder [879]

Answer:

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Explanation:

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