a) five benefits of having
an operating system over not having one.

Answer:

a.

Explanation:

Two bytes have 2 times 8 bits is 16 bits.

Max value that can be expressed is 2¹⁶-1 = 65535

Answer:

Since the get_seconds function is not given, I'll implement it myself;

The full program (get_seconds and main) written in python is as follows:

def  get_seconds(hour,minute,seconds):

    seconds = hour * 3600 + minute * 60 + seconds

    return seconds

time1 = get_seconds(2,30,0)

time2 = get_seconds(0,45,15)

result = time1 + time2

print(result)

Explanation:

The get_seconds defines hour, minute and seconds as its arguments

This line defines the get_seconds function

def  get_seconds(hour,minute,seconds):

This line calculates the second equivalent of the time passed to the function

    seconds = hour * 3600 + minute * 60 + seconds

This line returns the the calculated seconds equivalent of time

    return seconds

The main starts here

This line calculates the number of seconds in 2 hours and 30 minutes

time1 = get_seconds(2,30,0)

This line calculates the number of seconds in 45 minutes and 15 seconds

time2 = get_seconds(0,45,15)

This line adds both together

result = time1 + time2

This line prints the result

print(result)

Answer:

Last name: Duck

Explanation:

explanation is provided in the attached document.

Answer:

the server will atomaticly detect

Explanation:

not worry

Answer:

/etc/yum.conf

Explanation:

The absolute pathname for YUM is /etc/yum.conf. The configuration file For yum and related utilities can be found there. The file has one compulsory section, and this section can be used to place Yum options with global effect, it could also have one or more sections, that can enable you to set repository-specific options.

Answer:

The first thing that is judged in the interview is the self confidence. If a person is self confident he is better able to express himself. The employer wants a candidate who has potential to bring good to the organization.

Explanation:

The employer for enthusiasm in the candidate to work passionately. He also considers relevant skills and expertise and relevant knowledge of work. The qualification also matters. It is important for a candidate to read the person specifications carefully before applying for a job. There can be certain tests conducted by employer during the interview process to identify the candidates potential and how he reacts in certain situations.

Answer:

I am writing a Python program.

def concordance(filename):  # function that takes a file name as parameter and returns the concordance for that file

   file = open(filename,"r")  #opens file in read mode

   unique={}  #creates and empty list

   for word in file.read().split():  #loops through every word in the file

       if word in unique:  # if words is already present in the list

           unique[word] += 1  #add 1 to the count of the existing word

       else:    #if word is not present in the list

           unique[word] = 1 #add the word to the list and add 1 to the count of word

           file.close();  # close the file

   for x in sorted(unique):  #sort the list and displays words with frequencies

       print(x, unique[x]);  #prints the unique words and their frequencies in alphabetical order

#prompts user to enter the name of the file

file_name=input('Enter the input file name: ')

concordance(file_name)  #calls concordance method by passing file name to it

Explanation:

The program has a function concordance that takes a text file name as parameter and returns a list of unique words and their frequencies.

The program first uses open() method to open the file in read mode. Here "r" represents the mode. Then creates an empty list named unique. Then the for loop iterates through each word in the file. Here the method read() is used to read the contents of file and split() is used to return these contents as a list of strings. The if condition inside the loop body checks each word if it is already present in the list unique. If the word is present then it adds 1 to the count of that word and if the word is not already present then it adds that unique word to the list and assign 1 as a count to that word. close() method then closes the file. The second for loop for x in sorted(unique):  is used to display the list of unique words with their frequencies. sorted() method is used to sort the list and then the loop iterates through each word in the list, through x, which acts like an index variable, and the loop displays each word along with its frequency.

Answer:The purpose of the lo jack on a computer  to the lock and delete files on the computer devices.

Explanation:The lo jack on a computer to locate all the lock and delete files.

lo jack can provides the computer on the passwords that contains different levels of the bios access.

lo jack perform on the computer operating system provides on the boot only the trusted by the computer operating system.

Lo jack computer on the function is used to the published  the exam answers on the websites.

Lo jack insures to the data into hard drives to the correct computer password.

Answer:

x(t) = −2 cos ( [tex]\frac{\pi }{4}t[/tex]  − [tex]\frac{\pi }{2}[/tex] ) + 4 cos ( [tex]\frac{5\pi }{4}t[/tex] )

Explanation:

Given:

Fundamental period of real valued continuous-time periodic signal x(t) = T = 8

Non-zero Fourier series coefficients for x(t) :

a₁ = [tex]a^{*}_{-1}[/tex] = j

a₅ = [tex]a_{-5}[/tex] = 2  

To find:

Express x(t) in the form

               ∞

x(t) =        ∑    A[tex]_{k}[/tex] cos ( w[tex]_{k}[/tex] t + φ[tex]_{k}[/tex] )

              [tex]_{k=0}[/tex]  

Solution:

Compute fundamental frequency of the signal:

w₀ = 2 π / T

     = 2 π / 8               Since T = 8

w₀  = π / 4

                   ∞

                    ∑ [tex]a_{k}e^{jw_{0}t }[/tex]

x(t) =          k=⁻∞

     =  [tex]a_{1}e^{jw_{0} t} + a_{-1}e^{-jw_{0} t} + a_{5}e^{5jw_{0} t}+a_{-5}e^{-5jw_{0} t}[/tex]  

     =  [tex]je^{j(\pi/4)t} - je^{-j(\pi/4)t} +2e^{(5\pi/4)t}+2e^{-(5\pi/4) t}[/tex]

     = −2 sin ( [tex]\frac{\pi }{4}t[/tex] ) + 4 cos ( [tex]\frac{5\pi }{4}t[/tex] )

     = −2 cos ( [tex]\frac{\pi }{4}t[/tex]  − [tex]\frac{\pi }{2}[/tex] ) + 4 cos ( [tex]\frac{5\pi }{4}t[/tex] )

Answer:

It is a C++ program. The complete function   ConvertToDecadesAndYears which takes totalYears as parameter and convert totalYears to decades and years is provided in the attached document.

Explanation:

The explanation is provided in the attached document.

The screenshot of the complete code along with its output is attached.

Answer:

Bandwidth delay product = 2500 Kbits

Utilization = 0.02%

Explanation:

We proceed as follows;

From the question, we are given that

band width = 500 Mbps

The bandwidth-delay product is = 500 x 10^6 x 25 x 10^-3

= 2500 Kbits

The system can send 12500 Kbits during the time it takes for the data to go from the sender to the receiver and then back again.

However, the system sends only 2500 bits.

The the link utilization =

2500/(12500 x 10^3) = 0.02%

Answer:brain

Explanation:

to think

Answer:

c. suffer from indefinite postponement.

Explanation:

Algorithm is a set of rules that are followed in calculations or other problem solving operation by a computer. An algorithm may execute for unknown amount of time and it may suffer indefinite postponement. Algorithm depends on random numbers and it can execute continuously.

Answer:

2500 kb

Explanation:

Here, we are to calculate the bandwidth delay product

From the question, we are given that

band width = 500 Mbps

The bandwidth-delay product is = 500 x 10^6 x 25 x 10^-3

= 2500 Kbits

Answer:

Here is the C++ program:

#include <iostream>  //for using input output functions

using namespace std;  //to identify objects like cin cout

class Plane{  //class Plane

private:  // declare private data members i.e. first_class and eco_class

int first_class;  //variable for first class

int eco_class;  //variable declared for economy class

public:  // public access modifier

Plane(){  //constructor to initialize values of first_class and eco_class

first_class=0;  //initialized to 0

eco_class=0;}   //initialized to 0

int getFirst(){  // class method to get data member first_class

return first_class;}   //returns the no of reserved first class seats

int getEco(){  // class method to get data member eco_class

return eco_class;}  //returns the no of reserved eco class seats

void CheckIn(){  //method to handle the check in process

int choice;  //choice between first and economy class

cout<<"\nEnter 1 to select First Class Seat: "<<endl;  //prompts user to enter 1 to reserve first class seat

cout<<"\nEnter 2 to select Economy Class Seat: "<<endl;   //prompts user to enter 2 to reserve economy class seat

cin>>choice;   //reads the choice from user

switch(choice){  // switch statement is used to handle the check in process

case 1:  //to handle the first class seat reservation

if(getFirst()<5){  //if the seat is available and the seat limit has not exceed 5

first_class++;  //add 1 to the first_class seat to count that a seat is reserved

cout<<"You reserved First class seat! ";} //display the message about successful seat reservation in first class

cout<<"\nNumber of first class seats reserved: "<<getFirst()<<endl;}  //displays the number of seats already reserved

else{  //if all first class seats are reserved then display the following message

cout<<"No more seats available for you selection!"<<endl;  

if(getEco()>=5 && getFirst()>=5){  //if all seats from first class and economy class are reserved display the following message

cout<<"All seats are reserved!"<<endl;  

exit(1);}}  //program exits

break;  

case 2:  //to handle the economy seat reservation

if(getEco()<5){   //if the seat is available and the seat limit has not exceed 5

eco_class++;  //add 1 to the eco_class seat to count that a seat is reserved

cout<<"You reserved Economy class seat! "; //display the message about successful seat reservation in economy class

cout<<"\nNumber of Economy class seats reserved: "<<getEco()<<endl;}  //displays the number of seats already reserved

else{  //if all economy class seats are reserved then display the following message

cout<<"No more seats available for you selection!"<<endl;

if(getEco()>=5 && getFirst()>=5){  //if all seats from first class and economy class are reserved display the following message

cout<<"All seats are reserved!"<<endl;

exit(1);}}  //program exits

break;

default: cout<<"Enter a valid choice"<<endl; } } };   //if user enters anything other that 1 or 2 for choice then this message is displayed

int main(){  //start of main() function body

int select;  // choice from first or economy class

Plane plane;  //create an object of Plane class

cout<<"**************************"<<endl;

cout<<"Airline Reservation System"<<endl;  //display this welcome message

cout<<"**************************"<<endl;

while(true){  // while loop executes the check in procedure

plane.CheckIn();} }  //class CheckIn method of Plane classs using plane object to start with the check in process

Explanation:

The program is elaborated in the comments with each statement of the above code. The program has a class Plane that has a method CheckIn to handle the check in process. The user is prompted to enter a choice i.e. enter 1 to select First Class Seat and enter 2 to select Economy Seat. A switch statement is used to handle this process. If user enters 1 then the case 1 of switch statement executes which reserves a seat for the user in first class. If user enters 2 then the case 2 of switch statement executes which reserves a seat for the user in economy class.There are only 5 seats for each First Class and Economy. So when the limit of the seats reservation exceeds 5 then the no more seats available for you selection is displayed. If all the seats are taken in both the first and economy class then it displays the message All seats are reserved. If the user enters anything other than 1 or 2 then display the message Enter a valid choice. Whenever the user reserves one of first or economy class seats the relevant seat is incremented to 1 in order to count the number of seats being reserved. The program and its output are attached.

Answer:

(a) The user will be prompted to enter a different name

Explanation:

Given code;

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

var name = prompt("Enter the name to print on your tee-shirt");

while (name.length > 12) {

name = prompt("Too long. Enter a name with fewer than 12 characters.");

}

alert("The name to be printed is " + name.toUpperCase());

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

=>The first line of the code prompts the user to enter some name to be printed on their tee-shirt, and the input from the user is saved in a variable called name.

=> In the while block, the name variable is checked. If the length of the value of the variable is greater than 12 then a new prompt that says "Too long. Enter a name with fewer than 12 characters" is displayed.

=> In the last line, if the name variable is checked and the length is less than 12, then an alert statement showing the name in uppercase is displayed with some prepended texts.

Now, if the user enters Willy Shakespeare at the first prompt, the while block will be executed since Willy Shakespeare has over 12 characters.

In other words, the prompt in the while block, asking the user to enter a different name will be displayed. i.e

"Too long. Enter a name with fewer than 12 characters"

Answer:

I am writing a Python program. Here is the function twoWordsV2:

def twoWordsV2 (length,firstLetter):#definition of function which takes length of the first word and first letter of the second word as parameter and returns these two words in a list

   word1 = "" # stores the first word

   word2= "" #holds the second word  

   while(len(word1)!=length): # checks if the input word1 length is not equal to the specified length

       word1 = input('A ' + str(length) + '-letter word please: ') #asks user to enter the input word1 of specified length

   while(word2!=firstLetter): #checks if the first character of input word2 is not equal to the specified firstLetter character

       word2 = input('A word beginning with ' + firstLetter+ ' please: ')#asks user to enter the input word2 begining with specified first letter

       if word2[0] == firstLetter.upper() or word2[0] == firstLetter.lower():#second word may begin with either an upper or lower case instance of firstLetter      

           return [word1,word2] #return the two words in a list                

#to check the working of the function use the following statement        

print(twoWordsV2(4,'B')) #calls twoWordsV2  method by passing 4 (length) and B (first letter)

Explanation:  

twoWordsV2 method has two parameters i.e length which is the length of the first word and firstLetter which is the first character of the the second word. This means the first word should be of specified length, and the second word should begin with a specified first letter. The function returns the two resultant words with the above specifications. These two words are displayed in a list. I will explain the working of the function with the help of an example:

Suppose length = 4 and firstLetter = 'B' and user enters "ok" as word1. input() method takes first word input from user.

The first while loop checks if the length of word1 i.e. ok is not equal to specified length i.e. 4. Length of word1 is checked using len function which returns 2 so length of word1 is 2. The loop condition is true because length of word1 i.e. 2 is not equal to specified length i.e. 4. So the body of the loop executes which displays this message:

A 4-letter word please:

Here notice that str(length) is changed to 4. This is because length=4 and str() converts this value into string.

So the above message keeps displaying until user enters a four letter word. Lets suppose user now enters "four". Now the while loop condition evaluates to false and the loop breaks. The program control  moves to the next line which is a while loop.

The second while loop checks if the first character of input word2 is not equal to the specified firstLetter character. Suppose word2 = "apple" and firstLetter= 'B'

Now the loop condition evaluates to true because word2 is not equal to first letter B. Now the main part of this while loop is the if condition: if word2[0] == firstLetter.upper() or word2[0] == firstLetter.lower() This statement checks if the first index of the word2 is equal to firstLetter. The word2 can contain a capital B or a small B so if condition checks both the cases by using upper and lower methods that converts the firstLetter to upper or lower and then match with the first letter of word2 i.e. the letter at index 0 of the word2. If this condition evaluates to true then next return statement returns the word1 and word2 in a list otherwise the second while loop keep asking user to enter the word2 with starting letter to be firstLetter i.e. 'B'.

The screenshot of the program and its output is attached.

The function for the given problem is:

These 10 lines of code were written using the Python programming language and this was used to define, store and hold the function and then request input from the user, check if the given input was according to the required parameters, and then print the output.

Read more about python programming language here:
https://brainly.com/question/7015522

Answer:

Coding is a skill where you take instructions (the steps in a task) and translate it into a language the computer understands since computers do not communicate like humans. They communicate in a language called BINARY and it is uses 0's and 1's. Coders write the instructions using a programming language.

Explanation:

Coding is a skill where you take instructions (the steps in a task) and translate it into a language the computer understands since computers do not communicate like humans. They communicate in a language called BINARY and it is uses 0's and 1's. Coders write the instructions using a programming language.

Answer:

I am writing a Python program.

def phonebook(names, numbers):  #method phonebook that takes two parameters i.e a list of names and a list of phone numbers

   dict={}  #creates a dictionary

   for x in range(len(names)):  # loop through the names

       dict[names[x]]=numbers[x]  #maps each name to its phone number

   return dict #return dictionary in key:value form i.e. name:number

#in order to check the working of this function, provide the names and numbers list and call the function as following:

names = ['Jackie', 'Joshua', 'Marguerite']

numbers = ['404-555-1234', '678-555-5678', '770-555-9012']

print(phonebook(names, numbers))

Explanation:

The program has a function phonebook() that takes two parameters, name which is a list of names and numbers that is a list of phone numbers.

It then creates a dictionary. An empty dictionary is created using curly brackets. A dictionary A dictionary is used here to maps a names (keys) phone numbers (values) in order to create an unordered list of names and corresponding numbers.

for x in range(len(names)):  

The above statement has a for loop and two methods i.e. range() and len()

len method is used to return the length of the names and range method returns sequence of numbers just to iterate as an index and this loops keeps iterating until x exceeds the length of names.

dict[names[x]]=numbers[x]

The above statement maps each name to its phone number by mapping the first name with the first  umber, the second name with the second number and so on. This mapping is done using x which acts like an index here to map first name to first number and so on. For example dict[names[1]]=numbers[1]  will map the name (element) at 1st index of the list to the number (element) at 1st index.

return dict retursn the dictionary and the format of dictionary is key:value where key is the name and value is the corresponding number.

The screenshot of the program and its output is attached.

Answer:

The scores array: 70,20,35,15,40

Explanation:

I will explain the code line by line:

var scores = [70, 20, 35, 15];  

The above statement declares and assigns values to an array named scores

scores[scores.length] = 40;  

The above statement uses length to set the length of the scores array. It sets the last element of the scores array to 40. So this means 40 is set as the last element of scores.

scores.length returns the length of the scores array i.e. 4 as there are 4 elements in scores array 70,20,35,15

So the statement becomes:

scores[4] = 40;

This assigns value 40 to the 4th index of the scores array. Do not confuse 4th index with 4th element of the array because array element location starts from 0. So scores[4] does not mean 4th element but scores[4] means 4th index position of scores array. This makes 5th element of scores. So set the element 40 as 5th element at 4th index of scores.

alert("The scores array: " + scores);

This displays an alert box with the following message:

The scores array: 70,20,35,15,40

Answer:

They are all controlled by something else. A car is controlled by humans. A crystal grows due to the temperature and climate. A fire alarm only rings when it senses smoke, which is caused by something else, usually humans.

Answer:just do it

Explanation:

How different quantities are determined

Answer:

Mon Feb 26 2017

Explanation:

Since the current date is considered as Monday, February 26, 2017, thisDay will be set to that value.

The toDateString() method returns the first three letters of the name of the day (The first letter is capitalized), the first three letters of the name of the month (The first letter is capitalized), the day of the month as an integer, and the year as an integer (There are spaces between all)

Answer:

public static boolean isPalindrome(String word) {

   //TODO: Complete this method

   String reverse = "";  

       for (int i = (word.length()-1); i>=0; i--) {

           if(word.charAt(i)!=' '){

               reverse+=word.charAt(i);

           }

       }

   String without_space = word.replaceAll(" ", "");

   return reverse.equals(without_space);

   }

Methods are collections of named code blocks, that are executed when called or evoked.

The isPalindrome method written in Java, where comments are used to explain each line is as follows

//This defines the method

public static boolean isPalindrome(String word) {

   //This removes all the spaces in the word

   String newStr = word.replaceAll(" ", "");

   //This initializes an empty string

   String rev = "";  

   //This iterates through the word, in reverse order

   for (int i = (word.length()-1); i>=0; i--) {

       //This gets all the characters in the string (without the space)

       if(word.charAt(i)!=' '){

           rev+=word.charAt(i);

       }

   }

   //This returns true or false

   return reverse.equals(newStr);

}

Read more about methods at:

https://brainly.com/question/19360941

Answer:

A jacket that originally costs $ 100 is on sale today for $ 80                                    

Explanation:

Main : From here the execution of the program begins

Set OldPrice = 100  -> This line assigns 100 to the OldPrice variable

Set SalePrice = 70   -> This line assigns 70to the SalePrice variable

Call BigSale(OldPrice, SalePrice)  -> This line calls BigSale method by passing OldPrice and SalePrice to that method

Write "A jacket that originally costs $ ", OldPrice  -> This line prints/displays the line: "A jacket that originally costs $ " with the resultant value in OldPrice variable that is 100

Write "is on sale today for $ ", SalePrice  -> This line prints/displays the line: "is on sale today for $ " with the resultant value in SalePrice variable that is 80

End Program -> the main program ends

Subprogram BigSale(Cost, Sale As Ref)  -> this is a definition of BigSale method which has two parameters i.e. Cost and Sale. Note that the Sale is declared as reference type

Set Sale = Cost * .80  -> This line multiplies the value of Cost with 0.80 and assigns the result to Sale variable

Set Cost = Cost + 20  -> This line adds 20 to the value of Cost  and assigns the result to Cost variable

End Subprogram  -> the method ends

This is the example of call by reference. So when the method BigSale is called in Main by reference by passing argument SalePrice to it, then this call copies the reference of SalePrice argument into formal parameter Sale. Inside BigSale method the reference &Sale is used to access actual argument i.e. SalePrice which is used in BigSale(OldPrice, SalePrice) call. So any changes made to value of Sale will affect the value of SalePrice

So when the method BigSale is called two arguments are passed to it OldPrice argument and SalePrice is passed by reference.

The value of OldPrice is 100 and SalePrice is 70

Now when method BigSale is called, the reference &Sale is used to access actual argument SalePrice = 70

In the body of this method there are two statements:

Sale = Cost * .80;

Cost = Cost + 20;

So when these statement execute:

Sale = 100 * 0.80 = 80

Cost = 100 + 20 = 120

Any changes made to value of Sale will affect the value of SalePrice as it is passed by reference. So when the Write "A jacket that originally costs $ " + OldPrice Write "is on sale today for $ " + SalePrice statement executes, the value of OldPrice remains 100 same as it does not affect this passed argument, but SalePrice was passed by reference so the changes made to &Sale by statement in method BigSale i.e.  Sale = Cost * .80; has changed the value of SalePrice from 70 to 80 because Sale = 100 * 0.80 = 80. So the output produced is:

A jacket that originally costs $ 100 is on sale today for $ 80                              

Answer:

The correct form of the program in python is as follows

def even_numbers(maximum):

     return_string = ""  

     for x in range(1,maximum+1):

           if x % 2 == 0:

                 return_string+=str(x)+" "

     return return_string.strip()

Explanation:

This line defines the method

def even_numbers(maximum):

This line initializes return_string to an empty string

     return_string = ""  

This line iterates through variable maximum

     for x in range(1,maximum+1):

This line checks if the current number is even

           if x % 2 == 0:

If yes, the string is updated

                 return_string+=str(x)+" "

This line returns the full string of even numbers

    return return_string.strip()

When the method is tested with any of the following, it gives the desired result

print(even_numbers(6)), print(even_numbers(10)), print(even_numbers(1)), print(even_numbers(3)) and print(even_numbers(0))

Complete Question:

Jason has a part time job in the office of a construction company and is also a student at a community college. He often works on his homework during times when he is not busy at work because the office computer contains the software he needs to do his assignments and he hasn't been able to afford to purchase the software for his own personal computer. Which of these unacceptable uses typically included in a user access policy might he most likely be engaging in?

1.Using the network to download software for personal use

2.Disclosing personal information about employees

3.Copying of copyrighted material

4.Using a network account for a purpose not specified by the owner’s job description

Answer:

4.Using a network account for a purpose not specified by the owner’s job description

Explanation:

The office computer is meant to be used for the owner's purpose only.  By using the office computer to do his homework, even at a free hour, Jason is still violating his employer's asset for selfish purpose.  Jason could obtain permission from his manager to use the office computer for his homework for a temporary period, until he could "afford to purchase the software for his own personal computer."  The official permission can exempt him from being penalized for the violation.  A written permission is more ideal in this case.

Answer:

Joyner

David

USA

1.8

30

Explanation:

def saveUserProfile(firstName, lastName, age, height, country):

This is the definition of function named saveUserProfile which accepts the following parameters:

filename = lastName + firstName + ".txt"

When the file is created it will be named as the lastName and firstName string combined with .txt as extension. For example if the lastName contains the name string Joyner and firstName contains the name David then the file created to be written is named as JoynerDavid.txt

outputFile = open(filename, "w")

This statement uses open() method in write mode and uses outputFile object to access the file. "w" represents write mode i.e. file is opened in write mode to write on it.

a) Joyner is written on line 1 of that file because of the following statement of above function:

print(lastName, file = outputFile)

This statement prints the string stored in lastName i.e. Joyner. Here outputFile opens the file in "w" write mode and writes the last name to the first line of the file.

b) David is written on line 2 of that file because of the following statement of above function:

print(firstName, file = outputFile)

This statement prints the string stored in firstName i.e. David. Here outputFile opens the file in "w" write mode and writes the first name to the second line of the file.

c) USA is written on line 3 of that file because of the following statement of above function:

print(country, file = outputFile)

This statement prints the data stored in country i.e. USA. Here outputFile opens the file in "w" write mode and writes the country name to the third line of the file.  

d) 1.8 is written on line 4 of that file because of the following statement of above function:

print(height, file = outputFile)

This statement prints the value stored in height i.e. 1.8. Here outputFile opens the file in "w" write mode and writes the height value to the fourth line of the file.  

e) 30 is written on line 5 of that file because of the following statement of above function:

print(age, file = outputFile)

This statement prints the value stored in age parameter of function saveUserProfile i.e. 30. Here outputFile opens the file in "w" write mode and writes the age value to the fifth line of the file.  

Answer:

a. 118.20.210.254

Explanation:

Here are the few characteristics of Class A:

First bit of the first octet of class A is 0.

This class has 8 bits for network and 24 bits for hosts.

The default sub-net mask for class A IP address is 255.0.0.0

Lets see if the first bit of first octet of 118.20.210.254 address is 0.

118 in binary (8 bits) can be represented as : 1110110

To complete 8 bits add a 0 to the left.

01110110

First bit of the first octet of class A is 0 So this is class A address.

For option b the first octet is : 183 in the form of bits = 10110111 So it is not class A address

For option c the first octet is 215 in the form of bits = 11010111 So it is not class A address

For option d the first octet is 255 in the form of bits = 11111111. The first bit of first octet is not 0 so it is also not class A address.