Please explain NIDS in a little more depth. Also, who poses a threat to a business's physical and environmental security? Which do you think would be a bigger threat, people inside or outside of the organization? Why?


(Please Text format, no pictures or hand written).

What data type will Python pick for the following variable?

radio = '101.5'

Which of the following Python statements changes the first element of a tuple my_tuple to 17?

Suppose there are two sections of CSC121 and each section has 10 students. Their midterm exam scores are stored in two lists score_list1 and score_list2. Which of the following Python program fragments displays all these midterm exam scores?

combined_list = [score_list1, score_list2]
for element in combined_list:
    for score in element:
        print (score)

combined_list = score_list1 + score_list2
for element in combined_list:
    print (element)

def main():

    age = float(input('Enter age: '))

    # insert statement here to call the buffet_price function

    print('Please pay $', price)

def buffet_price(age):

    if age >= 60 or age <= 10:

        price = 9

    else:

        price = 12

    return price

main()

Which of the following statements should be used to call the buffet_price function?

The SOC has noticed an unusual volume of traffic coming from an open wi-fi guest Network that appears correlated with a border Network slow down. The network team is unable to capture traffic, but logs from Network Services are available.

• No users have authenticated recently there was a guest networks captive portal

• DDoS mitigation systems are not alerting

• DNS resolver logs show some very long domain names

Which of the following is the best step for security analysis to take next?

1. Block all outbound traffic from the guest Network at the border firewall

2. verify the passphrase on the guest network has not been changed

3. search antivirus logs for evidence of compromise company device

4. review access point logs to identify potential a zombie services

5 SENTENCES EACH

What is a software myth?

Describe the Three (3) Types of Software Myths

Which of the Myths do you think would cause a software developer to be frustrated in a company setting? Explain why.

Identify a popular/common computer related product/solution that utilizes an interface that are not optimal for human interaction. It must clearly identify the original problem that lead to the development of the solution. Describe how the users resolve the problem before the solution was developed and after the development of the solution. Explain why you think the solution is not optimal and how to improve the solution to provide a better interface for human interaction.

you will upload a 1-2 pages synopsis of " the importance of mobile apps in this modern-day".

You should have a

• table of contents,
• introduce your topic, "the importance of mobile apps in this modern-day".
• and give a general outline of how you intend to develop this topic.
• Sources consulted must be appropriately cited and be part of the bibliography.
• You should have at least 10 references.

created a new StringBuilder sb using the following index:

StringBuilder sb = new StringBuilder ("Welcome To ");

What would be sb after each of the following statements? Explain the methods used and how they change the content

sb.append("Java");

sb.insert(11, "HTML and ");

Assume you have found a USB memory stick in a car park, and you plugged the USB memory stick to your computer. Answer the following questions

1.  What are the security key objectives that could be threaten?

2.  Identify and define three types of malware, and give examples about how could they transported from the USB memory stick to your computer.

3.   What could you do to mitigate the security threats and use the contents of the USB memory stick safely?

NETWORKING

Suppose within your web browser you click on a link to obtain a web page. The IP address for the associated URL is cached in your local host, so a DNS lookup is not necessary to obtain the IP address. Further suppose that the web page associated with the link, references ten very small objects on the same server. Let RTT₀ denote the RTTs between the local host and one of the objects. Assuming zero transmission time of the object, how much time elapses from when the client clicks on the link until the client receives the full web page with:

a.) Non-persistent HTTP?

Choose a table on a web page (use your discretion) and scrape the contents to a csv file.

The table selected must have at least 3 numerical columns and at least 15 rows.

You must produce the following results for at least 2 of those columns:

● count - number of values in the column

● mean - average of all values in the column

● std - standard deviation of the column

● min - minimum value in the column

● 25% - percentile value in the column

● 50% - percentile value in the column

● 75% - percentile value in the column

● max - maximum value in the column

Deliverables :

- A file containing your python code.

- The csv file

Q-1) Write a program that mimics a calculator. The program should take as input two integers and the operation to be performed. It should then output the numbers, the operator, and the result. For division, if the denominator is zero, output an appropriate message.

Some sample outputs follow:

3 + 4 = 7

13 * 5 = 65

Python Programming #1

Below is an English algorithm for determining the day of the week (Sunday, Monday, etc.) given the date (day, month and year).

Take the last two digits of the year.

Divide by 4, discarding any fraction. (keep quotient; ignore remainder)

Add the day of the month.

Add the month's key value: JFM AMJ JAS OND 144 025 036 146
[eg, Jan = 1; Feb = 4; March =4; etc] & see note [a]

Subtract 1 for January or February of a leap year.

For a Gregorian date, add 0 for 1900's, 6 for 2000's, 4 for 1700's, 2 for 1800's; for other years, add or subtract multiples of 400.
see note[c]

For a Julian date, add 1 for 1700's, and 1 for every additional century you go back.
see note [b]

Add the last two digits of the year.

Divide by 7 and take the remainder.

Now, 1 is Sunday, the first day of the week, 2 is Monday, and so on.

You have been put in charge of planning the New Year’s Eve party for the Computer Science Department. Your initial task is to determine which day of the week New Year’s Eve will fall on for any given year. To do so, implement the above algorithm in Python with the following abstractions (simplifications):

Assume that the date to be evaluated will always be December 31^st (in step 4, you will always add 6)

Assume that the date will always be Gregorian (you will always ignore step 7)

Assume that the year will always be in the 2000s (in step 6, you will always add 6)

Bonus: If you are an experienced coder, feel free to modify the program to calculate the day of the week for any date, not just December 31. This will require the use of conditionals for step 4 and step 6.

Submit your code (as a .py file or a plain .txt. file) here on Blackboard. Ensure that your code runs before you submit, and ensure the indentation is preserved in the file.

Hints: start by following the steps manually to ensure you understand the algorithm

create three variables (with appropriate names) and assigning them the numeric values of the day, month, and year (last two digits); use another variable (or more) to hold the intermediate results

remember that remainder is determined using the modulo operation (%).

In C++, dealing with Binary Search trees. Implement search, insert, removeLeaf, and removeNodeWithOneChild methods in BST.h. BST.h code below

#include <iostream>
#include "BSTNode.h"
using namespace std;

#ifndef BST_H_
#define BST_H_

class BST {

public:

        BSTNode *root;
        int size;

        BST() {
                root = NULL;
                size = 0;
        }

        ~BST() {
                if (root != NULL)
                        deepClean(root);
        }

        BSTNode *search(int key) { // complete this method
        }

        BSTNode *insert(int val) { // complete this method
        }

        bool remove(int val) { // complete this method
        }

private:

        void removeLeaf(BSTNode *leaf) { // complete this method
        }

        void removeNodeWithOneChild(BSTNode *node) { // complete this method
        }

        static BSTNode *findMin(BSTNode *node) {
                if (NULL == node)
                        return NULL;
                while (node->left != NULL) {
                        node = node->left;
                }
                return node;
        }

        static BSTNode *findMax(BSTNode *node) {
                if (NULL == node)
                        return NULL;
                while (node->right != NULL) {
                        node = node->right;
                }
                return node;
        }

        void print(BSTNode *node) {
                if (NULL != node) {
                        node->toString();
                        cout << " ";
                        print(node->left);
                        print(node->right);
                }
        }

        static int getHeight(BSTNode *node) {
                if (node == NULL)
                        return 0;
                else
                        return 1 + max(getHeight(node->left), getHeight(node->right));
        }
    
    static void deepClean(BSTNode *node) {
        if (node->left != NULL)
            deepClean(node->left);
        if (node->right != NULL)
            deepClean(node->right);
        delete node;
    }

public:

        int getTreeHeight() {
                return getHeight(root);
        }

        void print() {
                print(root);
        }

        int getSize() {
                return size;
        }
};

#endif

For Humming code H(15,11), write a computer program for decoding, which outputs an error correction dictionary from received 15bits to corrected 11bits data or maps from input as the received 15bits to output as the corrected 11bits data. Demonstration outputs of the running program with explanation are required to show its correctness. Any computer programming language is acceptable. DETAILED DESCRIPTIONS MUST BE INCLUDED FOR THE CODE