in.java

Write a program that reads an integer from the user and prints a rectangle of starts of width 5 3 and height N.

Sample run 1:
Enter N: 5
***
***
***
***
***
Bye

Sample run 2:
Enter N: 8
***
***
***
***
***
***
***
***
Bye

Sample run 3:
Enter N: 2
***
***
Bye

Sample run 4:
Enter N: -2
Bye

Consider the following simple script incorporating a for loop:

#!/bin/bash
RED='\033[0;31m'
NC='\033[0m'
clear; cd /home
for DIR in $HOME; do
#for DIR in *;do
CHK=$(grep -c "/home/$DIR" /etc/passwd)
if [ $CHK -ge 1 ]
then
echo -e "${NC}$DIR is good"
else
echo -e "${RED}ALERT! $DIR is NOT good!"
fi
done

What kind of script is presented above? How did you make your determination? What is the purpose of the script?

In lines #5/6, what is the type of $DIR?

In line #7, what is the value of $CHK?

In line #8, what are the instructions contained with the brackets known as?

Why are there two lines containing the word "for"? Which line will execute? Will that line execute correctly?

What should you do before running the script?

How could the script be factored into your duties as a sysadmin?

Write a java program MyCalendar that outputs a monthly calendar for a given month and year.
the output should be looks like this one at the bottom:( I don't know why it doesn't show right but the first day of the month is not Sunday it starts from Wednesday)

F. Last’s My Calendar
Enter month year? 10 2019
10/2019
Sun Mon Tue Wed Thu Fri Sat
---------------------------------
1 2 3 4
5 6 7 8 9 10  11
12 13 14 15 16 17 18
19 20 21   22 23 24 25
26 27 28 29 30 31

PYTHON

Search for an element in a 2D sorted matrix using the binary search technique. Your code should run in O(m + n) where m is the number of rows and n is the number of columns
The python file should have a function named binarysearch

The function should take two arguments. The first argument of the function will be the element to search for. Second argument of the function will be the matrix as a List[List].
The function should return the row and column of the matrix if the element is found. Use a tuple to return the row and column. Return "Not Found" if the element is not found.

Sample values for input and output :

Sample Input:
Case 1: binarysearch(4, [[1, 2, 3],[4, 5, 6],[7, 8, 9]] )
Case 2: binarysearch(10,[[2, 3, 4],[5, 7, 9],[11, 12, 13],[20, 22, 24]]

Sample Output :
Case 1: (1 , 0)
Case 2: Not Found

Docker containers can be considered a new era of virtualization that has fundamentally changed the IT industry. For this discussion question, provide a brief response that describes a Docker container and how a container differs from a hypervisor. What potential do you see in Docker containers?

The decimal number 210 expressed in binary is ____.

11010011

11011011

11010010

11010111

____ is the most important layer 3 security protocol.

ARP

NAT

DNS

IPSec

In pumping lemma I know how to prove 0^n 1^n is not regular but what changes when I have 0^n 1^n 2^n (three variables). Do I need to check 6 variations

of 0,1 and 2 instead of only 3 in 0^n 1^n?

thanks.

Developing a set of classes demonstrating inheritance - in class work

Write and run SQL statements to complete the following tasks

1. Show the details of the vendors who are located in area code 615.
2. Show the details of the products that do not have a value for the attribute v_code.
3. Show the details of the invoices whose subtotal is greater than 25 but less than 75.
4. Show the details of the invoice who has the minimum subtotal.
5. Show the codes and names of the vendors who supplied products.
6. Using EXCEPT show the codes of the vendors who did not supply any products.
7. Using ‘NOT IN’ show the codes and names of the vendors who did not supply any products.
8. List the codes of vendors and the number of products each vendor has supplied, i.e. vendor XXX has supplied xxx products, and vendor YYY has supplied yyy products etc.
9. List the names and codes of vendors and the number of products each vendor has supplied, i.e. vendor XXX has supplied xxx products, and vendor YYY has supplied yyy products etc.
10. Add a new attribute (field) status varchar(6) to the EMP table.
11. Update status for employee '100' to 'Temporary'.
12. Using inner join, list the details of the products whose line price is greater than 100.

You are required to answer

1.   The SQL statements for each query, which should be copied and pasted into word.

2. tell all the sql command for each question?

tables: -

VENDOR TABLE

PRODUCT TABLE

CUSTOMER TABLE:

INVOICE TABLE:

LINE TABLE:

EMPLOYEE TABLE:

Discuss in details the applications and challenges of Mobile Database in Public and Private Sector

P-3.40 Implement a class, SubstitutionCipher, with a constructor that takes a string with the 26 uppercase letters in an arbitrary order and uses that as the encoder for a cipher (that is, A is mapped to the first character of the parameter, B is mapped to the second, and so on.) You should derive the decoding map from the forward version.

P-3.41 Redesign the CaesarCipher class as a subclass of the SubstitutionCipher from the previous problem.

P-3.42 Design a RandomCipher class as a subclass of the SubstitutionCipher from Exercise P-3.40, so that each instance of the class relies on a random permutation of letters for its mapping.

Explain what OS hardening is and why it is important? In addition, explain what could happen if OS Hardening is not done properly.

What is meant by best evidence? What are some examples? What is hearsay? When arriving at a crime scene, is it better to shut down the computer immediately or insure it stays on? What are the tradeoffs?

●In this task, the quick sort algorithm selects the first element in the list as the pivot. Revise it by selecting the median among the first, middle, and last elements in the list.

● Write the algorithm for searching for entries using linear probing.

● Write the algorithm for removing entries using linear probing.

● Create a diagram similar to the one above that shows the hash table of size 11 after entries with the keys 34, 29, 53, 44, 120, 39, 45, and 40 are inserted, using separate chaining.

I am very confused, this task involves algorithms , hashing and sorting.

THANK YOU IN ADVANCE

R-Studio (R Programming Language)

4. Let the data x be given by
`x <- c(1, 8, 2, 6, 3, 8, 5, 5, 5, 5)`
Use R to compute the following functions. Note, we use X1 to denote the first element of x (which is 1) etc.   
1. `(X1 + X2 + . . .+ X10)/10` (use sum)   
2. Find log10(Xi) for each i. (Use the log function which by default is base e)
3. Find `(Xi - 4.4)/2.875` for each i. (Do it all at once)   
4. Find the difference between the largest and smallest values of x. (This is the range. You can use `max` and
`min` or guess a built in command.)

```{r}
#insert your code
```