If you search on the Web for the major issues of wireless networks, you'll find numerous articles and documents that identify 3 or more (mostly more) issues or challenges of wireless networks. Do this research and list what you believe to be the 5 most important or problematic issues facing the design, implementation, or operations of a wireless network.

1.Which players have lost more matches than the average number of losses?   No duplicates should be listed.   Order by player number.   Insert your screen shot here.

2.How many players from each town served on the committee in any capacity? Display the town as ‘Town’ and the number served as ‘Committee Service’.   Insert your screenshot here.

3.How many members come from each town? Display the town as ‘Town’ and the number of members as ‘Number’. Insert your screenshot here.

4.Who has served on the committee more than once? Display the player number as ‘Number’, concatenate the player initial and name as ‘Name’, town as ‘Town’, and number served as ‘Terms’. Insert your screenshot here.

Below I will include the tennis database

* *******************************************************************

CREATE and OPEN the TENNIS Base

******************************************************************* */

Create database tennis;

USE tennis;

#--Create table players and fill it--------------------------

Create table players

(

playerno              int                         not null                primary key,

name                    varchar(15)         not null,

initials   varchar(3),

birth_date           date,

gender                 char(1),

joined                   int          not null,

street                   varchar(15)         not null,

houseno                             varchar(4),

zip                         char(6),

town                     varchar(10)         not null,

phoneno                             char(10),

leagueno             char(4)

);

Insert into players values

(2,'Everett','R','1988-01-09','M',2000,'Stoney Road','43','3575NH','Stratford','070-237893','2411'),

(6,'Paramenter','R','1984-06-25','M',2002,'Haseltine Lane','80','1234KK','Stratford','070-476547','8467'),

(7,'Wise','GWS','1983-05-11','M',2006,'Edgecombe Way','39','9758VB','Stratford','070-347689',Null),

(8,'Newcastle','B','1982-07-08','F',2005,'Station Road','4','6584RO','Inglewood','070-458458','2983'),

(27,'Collins','DD','1990-05-10','F',2008,'Long Drive','804','8457DK','Eltham','079-234857','2513'),

(28,'Collins','C','1983-06-22','F',2008,'Old Main 28','10','1294QK','Midhurst','071-659599',Null),

(39,'Bishop','D','1986-10-29','M',2005,'Eaton Square','78','9629CD','Stratford','070-393435',Null),

(44,'Baker','E','1983-09-01','M',2010,'Lewis Street','23','4444LJ','Inglewood','070-368753','1124'),

(57,'Brown','M','1981-08-17','M',2007,'Edgecombe Way','16','4377CB','Stratford','070-473458','6409'),

(83,'Hope','PK','1976-11-11','M',2009,'Magdalene Road','16A','1812UP','Stratford','070-353548','1608'),

(94,'Miller','P','1993-05-14','M',2013,'High Street','33A','5746OP','Douglas','070-867564',Null),

(100,'Parmenter','P','1983-02-28','M',2012,'Haseltine Lane','80','1234KK','Stratford','070-494593','6524'),

(104,'Moorman','D','1990-05-10','F',2014,'Stout Street','65','9437AO','Eltham','079-987571','7060'),

(112,'Bailey','IP','1983-10-01','F',2014,'Vixen Road','8','6392LK','Plymouth','010-548745','1319');

#--Create the table committee_members and fill it--------------------

Create table committee_members

(

playerno              int          not null,

begin_date          date       not null,

end_date             date,

position               varchar(20),

primary key(playerno, begin_date)

);

Insert into committee_members values

(2,'2010-01-01','2012-12-31','Chairman'),

(2,'2014-01-01',Null,'General Member'),

(6,'2010-01-01','2010-12-31','Secretary'),

(6,'2011-01-01','2012-12-31','General Member'),

(6,'2012-01-01','2013-12-31','Treasurer'),

(6,'2013-01-01',Null,'Chairman'),

(8,'2010-01-01','2010-12-31','Treasurer'),

(8,'2011-01-01','2011-12-31','Secretary'),

(8,'2013-01-01','2013-12-31','General Member'),

(8,'2014-01-01',Null,'General Member'),

(27,'2010-01-01','2010-12-31','General Member'),

(27,'2011-01-01','2011-12-31','Treasurer'),

(27,'2013-01-01','2013-12-31','Treasurer'),

(57,'2012-01-01','2012-12-31','Secretary'),

(94,'2014-01-01',Null,'Treasurer'),

(112,'2012-01-01','2012-12-31','General Member'),

(112,'2014-01-01',Null,'Secretary');

#--Create the table matches and Fill it-------------------

Create table matches

(

matchno                             int          not null Primary Key,

teamno                int          not null references teams(teamno),

playerno              int          not null references players(playerno),

won                      int,

lost                       int

);

Insert into matches values

(1,1,6,3,1),

(2,1,6,2,3),

(3,1,6,3,0),

(4,1,44,3,2),

(5,1,83,0,3),

(6,1,2,1,3),

(7,1,57,3,0),

(8,1,8,0,3),

(9,2,27,3,2),

(10,2,104,3,2),

(11,2,112,2,3),

(12,2,112,1,3),

(13,2,8,0,3);

#--Create Table Penalties and Fill it-------------------------------------

create table Penalties

(

paymentno         int          not null Primary Key,

playerno              int          not null references players(playerno),

payment_Date   date       not null,

amount decimal(10,2)     not null

);

Insert into Penalties values

(1,6,'2010-12-08',100.00),

(2,44,'2011-05-05',75.00),

(3,27,'2013-09-10',100.00),

(4,104,'2014-07-08',50.00),

(5,44,'2010-12-08',25.00),

(6,8,'2010-12-08' ,25.00),

(7,44,'2012-12-30',30.00),

(8,27,'2014-08-12',75.00);

#--Create Table Teams and Fill it----------------------------------------------

Create table teams

(

teamno int          Primary Key        Not Null,

playerno              int          Not Null               references players(playerno),

division varchar(6)

);

Insert into teams values

(1,6,'first'),

(2,27,'second');

/* ********************************************************************************************

End of loading the database

******************************************************************************************** */

Q5:      Which type of RAM is used exclusively in laptops?

• SODIMM
• DDR3
• DDR
• DDR4

Q6:      Which firmware security standard can be used to store disk encryption keys?

• SLA
• TPM
• UEFI
• USB

Q7:      Which RAID level is Disk Mirroring?

• 3
• 1
• 0
• 5

Q8:      Which type of printer uses toner?

• Impact
• Inkjet
• Thermal
• Laser

Q9:      Which technique do 3D printers use to create objects?

• Fusing
• Heating
• Layering
• Carving

Q10:    Which of the following item DOES NOT store data?

• Random Access Memory
• CD-R
• LCD Screen
• USB Drive

In Java

Design a Triangle class (Triangle.java) that extends GeometricObject. Draw the UML diagram for both classes and implement Triangle. The Triangle class contains: ▪ Three double data fields named side1, side2, and side3 with default values 1.0 to denote three sides of the triangle. ▪ A no-arg constructor that creates a default triangle. ▪ A constructor that creates a triangle with the specified side1, side2, side3, color, and filled arguments. ▪ The accessor methods for all three data fields. ▪ A method named getArea() that returns the area of this triangle. ▪ A method named getPerimeter() that returns the perimeter of this triangle. ▪ A method named toString() that returns a string description for the triangle. return "Triangle: side1 = " + side1 + " side2 = " + side2 + " side3 = " + side3; The formulas to compute the area of a triangle are as follows: ? = (????1 + ????2 + ????3) 2 ???? = √?(? − ????1)(? − ????2)(? − ????3) The implementation for the Triangle’s toString() method is as follows: return "Triangle:\n" + super.toString() + "\nTriangle: side1 = " + side1 + " side2 = " + side2 + " side3 = " + side3; Download the attached project: HomeworkCh11.zip. Complete the HomeworkCh11.java test program as follows 1. Prompt the user to enter a. Each of the three sides of a triangle, b. the Triangle’s color, and c. whether the triangle is filled. 2. The program should create a Triangle object with these sides and set the color and filled properties using the input. 3. The program should display the area, perimeter, color, and true or false to indicate whether it is filled or not. 4.

Create an ArrayList and add at least one of each of the following objects to it: Triangle, String, Rectangle, Date, Circle. The list should contain at least seven objects.

The implementation for instantiating the ArrayList and adding objects to it is as follows: ArrayListlist = new ArrayList(); list.add(new Circle(1.5, "green", true)); list.add(new Date()); 5. Create a loop to display all the elements in the list by invoking its toString method. Use the instanceof operator to invoke the correct getArea() and getPerimeter() methods to display additional information about each shape object.

Java programming

Create a application with a method void (after main() ) that creates an array and asks for the user fill it with float numbers.
This array have infinite elements until the user decide that it is enough and input a command to stop.

Display this array's elements data in another method void.

Thanks for your help!

C++

Create a program which randomly generates 3 sets of x and y Integers and one randomly generated Integer. Two of the sets of Integers will represent the end points of a line segment. The other set of Integers and the other Integer will represent the midpoint of a circle and its radius.

The coordinates should be randomly generated using a user defined function that returns an Integer value based on from and to parameters; see the function declaration in the Other section below. Your coordinates should be randomly selected from -99 to 99. The radius should be a randomly generated number (using the same function) from 1 to 200.

Two other functions should be created to determine if a line segment is wholly within a circle. One of the functions should return the length of a line segment and the other will return a Boolean indicating if the passed line segment is in the passed circle; again, see the function declarations below.

The program should display all of the generated data and one of the messages regarding the location of the line as shown below in Output Layout section. Try to make everything line up correctly.

Output Layout:

Coordinates of a Random Line Segment
  1st Point's x coordinate: -##
  1st Point's y coordinate: -##
  2nd Point's x coordinate: -##
  2nd Point's y coordinate: -##
    
Coordinates of a Random Circle
  coordinate: -##
  coordinate: -##
  Radius: ###
    
The line segment is within the circle.
  OR
The line segment is not within the circle.

Other: (Required Identifier Names, Prototypes & Random Ranges)

p0x    // an int from -99 to 99
p0y    // an int from -99 to 99
p1x    // an int from -99 to 99
p1y    // an int from -99 to 99
mpx    // an int from -99 to 99
mpy    // an int from -99 to 99
radius // an int from 1 to 200
    
int randomInteger(const int from, const int to);
int lineSegLength(const int p0x, const int p0y, const int p1x, const int p1y);
bool lineInCircle(const int p0x, const int p0y, const int p1x, const int p1y, const int mpx, const int mpy, const int radius);

how to access server room, and how to remove signs when exit the gate door.

There are a variety of security mechanisms available to protect the enterprise network. Discuss how an enterprise might be attacked and the type of security device or mechanism you would select to combat the attack. What would you envision as being the legal, social, and ethical implications of using the security device or mechanism?

We can find and sort the k largest elements of a set of size n in Θ(n + k log k) worst-case time.

Is this statement true?

A Roman numeral represents an integer using letters. Examples are XVII to represent 17, MCMLIII for 1953, and MMMCCCIII for 3303. By contrast, ordinary numbers such as 17 or 1953 are called Arabic numerals. The following table shows the Arabic equivalent of all the single-letter Roman numerals:
M 1000 X 10
D 500 V 5
C 100 I 1
L 50
When letters are strung together, the values of the letters are just added up, with the following exception. When a letter of smaller value is followed by a letter of larger value, the smaller value is subtracted from the larger value. For example, IV represents 5 - 1, or 4. And MCMXCV is interpreted as M + CM + XC + V, or 1000 + (1000 - 100) + (100 - 10) + 5, which is 1995. In standard Roman numerals, no more than three consecutive copies of the same letter are used. Following these rules, every number between 1 and 3999 can be represented as a Roman numeral made up of the following one- and two-letter combinations:
M 1000 X 10
CM 900 IX 9
D 500 V 5
CD 400 IV 4
C 100 I 1
XC 90
L 50
XL 40
Write a Python code with a class to represent Roman numerals. The class should have two constructors. One named “toArabic” constructs a Roman numeral from a string like "XVII" to “seventeen” or "MCMXCV" to “one thousand nine hundred ninety-five”. It should throw an exception if the string is not a legal Roman numeral. The other constructor named “toInt” constructs a Roman numeral to an integer such as "XVII" to “17” or "MCMXCV" to “1995”. It should throw an exception if the integer result is outside the range 1 to 3999.

An organization’s success begins with building a strong, secure infrastructure, which includes the appropriate policies, procedures, and processes, as well as architecting a scaleable, available, and secure network.

Describe the critical components of a cybersecurity architecture. Be sure it provides defense to protect the organization’s data, network, and assets.

Explain the function of each component and how each protects the organization.

Respond to the following in a minimum of 175 words:

Written in JAVA

A valid month value mm must be from 1 to 12 (January is 1) and it must contain two digits. The day value dd must be from 1 to a value that is appropriate for the given month and it also must contain two digits. The year value yyyy must contain four digits and be a positive number. September, April, June, and November each have 30 days. February has 28 days except for leap years when it has 29. The remaining months all have 31 days. A leap year is any year that is divisible by 4 but not divisible by 100 unless it is also divisible by 400.

After you have the three substrings for the month, day, and year, you need to convert those strings into int values. This is done with a line of code like the following (for the year).

      int year = Integer.parseInt( yearString );

As soon as you find a problem with the user's input, output an appropriate error message and return from the checkDate method. Here is an example of how that might look.

      if ( 4 != yearString.length() )
      {
         System.out.println("Error with " + savedDate + ": The year must have four digits.");
         return;  // exit from the checkDate method
      }

You need to determine which years are leap years. This is tricky. The main tool for doing this is the "integer remainder" operator, %, which is described on pages 68-70 of the textbook. So, for example, the year is divisible by 4 when 0 == (year % 4) is true. A year is not divisible by 100 when 0 != (year % 100) is true.

You need to implement a web application that is split in three parts, namely, Webpage, PHP and Database. Each of them will be employed synergically to solve the simple problem described below. Your implementation should be able to resist all the most common security threats.

Webpage: This is the main page of your application. It would contain two sections, ADD and SEARCH: ADD section contains:

-A text box to input an Advisor name

-A text box to input a Student name

-A text box to input the Student ID code

-A text box to input the class code

-A button to allow the user to add the above specified data in the Database

SEARCH section contains: A search box (with corresponding button) that allows the user to query the database for Advisors name

PHP:

-Implement one or more PHP functions that read the inputs from the ADD section of the Webpage and prepare the corresponding query to add the record in the Database.

-Implement one or more PHP functions that read the input from the SEARCH section and prepare the corresponding query for the Database.

-Implement a function that, when a search is made in the SEARCH section, it shows in input the result of the query

Database: You need to create a database that contains at least a table to store the information in input to the webpage.

Write as a script in the editor window of Matlab:

Concession stand. Write a program, ConcessionStand.m, that uses vector-matrix multiplication to tabulate and display the cost of each of the following orders. Assume that a hot dog costs $3.00, a brat costs $3.50, and a Coke costs $2.50.

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

  hot dogs brats cokes

order 1    2 1 3

order 2 1 0 2

order 3 2 2 2

order 4 0 5 1