T F Overuse of global variables can lead to problems.

Answers

Answer 1

Answer:

True

Explanation:

Global Variables

Variables which are declared outside any function. Any function can use these variables,they are automatically initialized to zero(0).They are generally declared before main() function.

Problems

We can modify the global variable in any function as any function can access it. So it is hard to figure out which functions read and write these variables. Various problems are-

No Access Control Concurrency issuesMemory allocation issues


Related Questions

. Two or more functions may have the same name, as long as their _________ are different.

Answers

Answer:

Number of parameters.

Explanation:

The function is a block of the statement which performs the special task.

Syntax:

type name(parameter_1,parameter_2,...){

statement

}

we can define any number of function in the code and also with the name as well.

But when we define the function with same name the number of parameter define in both function must be different.

for example:

1. int print(int a){

statement;

}

2. int print(int a, int b){

statement;

}

first has one parameter and second has two parameters.

Both are valid in the code.

The true or false questions.

Given the command: find /home -name 'f*' If there are matched files, then all the printed paths of the matched files will start with /home

Answers

Answer:

true

Explanation:

The command:

find /home -name 'f*'

will match all the files starting with the character 'f' which are present in the /home directory.

Hence, all the printed paths of the matched files will start with /home.

For example:

/home/funny.txt

/home/function.log

/home/free.py

the address of the last cell of a memory RAM is 3FFFFh.a total capacity of the main memory and 4M bits and the data bus can transfer the contents of two memory cells , respond

a)which register the size of the memory address(MAR) ?

b)where the maximum number of cells that can be stored in memory?

c)which the cell size of this machine ?

d)which the size of the memory buffer register (MBR ) ?

Answers

Hey there!:

Given the address of the last cell of a memory RAM is 3FFFFh then   :

There are 8 bits in a byte  

1024 bytes in a kilobyte  

 so 8*1024= 8192  

 so 8192 bits in a kb  

 32*8192 = 262144  

there are 262144 bits in 32KB .

a) 32 bit address registers must match 2^32 byte = 4 GB of physical memory.

However, with 32 Bit you can also address more than 4 GB, like Physical Address Extension (PAE) does.

The other way is that you can access 4 GB with less than 32 bit address register.

____________________________________________________

b) Main Memory = 4M × 32Kbits, RAM chips = 32K × 4bit.

For this memory we require 4 × 2 = 8 RAM chips.

Each chip requires 18 address bits (ie. 218 = 256K).

And 1M × 8 bits requires 20 address bits (ie. 220 = 1M )

_____________________________________________________

c) The size of the storage cells is known as the word size for the computer.

In some computers, the word size is one byte while in other computers the word size is two, four, or even eight bytes. In our 4M main memory the size of cell is 4*2^20 bytes.

Each storage cell in main memory has a particular address which the computer can use for storing or retrieving data.  

______________________________________________________

d) The size of MBR is the 4M bits of main memory.

_____________________________________________________

Hope this helps!

Write a program that will compare two names. The program prompts the user to enter two names for a comparison. If the names are same, the program states that. If the names are different, the program converts both names to UPPERCASE, and compares then again. If they are equal, the programs displays a message stating that names are equal if CASE is ignored. Otherwise, the program prints names with a message that names are not equal.

Answers

Answer:

We can use comparison operator 'Equals to' (==) to compare two strings.

Explanation:

We can use conditional statement 'if else' to put conditions. If statement contains boolean expression.If statement is followed by else block. If the boolean expression evaluates to true, then the if block of code is executed, otherwise else block of code is executed.

If we want to compare two strings with uppercase, then we can convert the input strings given by users using ToUpper() string function.

For example,

 string abc;

string uppercase= abc.ToUpper(); // gives ABC as result

I have written a program using c# as a  programming language in a word document and attached the same. Please find. Thank you!

How are information technology services delivered in anorganization?

Answers

Answer:

The information technology services are delivered in many ways in an organisation as:

The information technology services are referred the plans and the process of the organisation which are used for design and manages the service delivery in the organisation and its services are basically depend upon the client needs.  IT can significantly improved the profitability by shortening the material search and the delivery time, it is used for improving the decision making and accelerating the schedules. IT management are the vision into the some valuable reality.

What is the output of the following function call? //function body int factorial(int n) { int product=0; while(n > 0) { product = product * n; n❝; } return product; } //function call cout << factorial(4);

Answers

Answer:

zero

Explanation:

Because of the define the product variable is zero.

when the function call with pass by value 4.

The program control moves to that function, after that product

store the value zero. Then, product is multiply with n which become zero

because 0 * n is zero and store in the product again.

after that, n'' is wrong it must be 'n--' for performing the factorial function.

after that, the value of n is 3, again loop execute because condition n > 0

is true.

again zero multiply with n and become zero.

this process repeated until condition false and finally the output is zero.

Correction:

To make the code working:

change product = 1 instead of zero.

and change n-- in place of n''.  

TRUE FALSE 31. Using indentation can make our code much easler to read and debug.

Answers

Answer:

True

Explanation:

Indentation makes your code easier to read and debug by grouping related code.

Also, in some programming languages such as Python, indentation is necessary.  This is opposed to other programming languages such as JavaScript, where there are semicolons and other characters that end and separate lines of code.

Implement RandMultipByVal function, which gets one integervariable as its argument
and multiply it by a random number between 1 to10 (use call-by-value approach).

Answers

Answer:

#include <iostream>

#include <stdlib.h>

#include <time.h>

using namespace std;

void RandMultipByVal(int number){

   srand(time(NULL));

   int random = rand()%10+1;

   cout<<random*number;

}

int main()

{

 

  RandMultipByVal(4);

  return 0;

}

Explanation:

Include the three libraries, iostream for input/output, stdlib.h for rand() function and time.h for srand() function.

Create the function with one integer parameter.

Then, use srand() function. It is used to seed the rand() function or locate the starting point different in different time.

rand(): it is used to generate the random number between the range.

for example:

rand()%10  it gives the random number from 0 to 9.

if we add 1, then it gives from 1 to 10.

After that, multiply with parameter value and then print the result.

For calling the function create the main function and call the function with pass by value.

2) What is the value stored in the variable z by the statements below?

int[ ] q = {3, 2, -2, 4, 7, 0, 1};
int z = q.length;

a) 1
b) 3
c) 6
d) 7
e) None of the above

Answers

Answer:

7

Explanation:

Because the q.length is a inbuilt function in the programming which used to get the length of the array. In the array, there are 7 values are store. Therefore, the size 7 store in the variable z.

For example:

int[] array={1,2};

int x = array.length;

the answer of above code is 2, because the elements present in the array is 2.

 

Deleting anitem from a linked list is best when performed using two pointersso that the deleted item is freed from memory.
a.True
b. False

Answers

Answer:

a.True.

Explanation:

To delete a node from linked list it is best to do it by using two pointers suppose say prev and curr. Iterating over the linked list while curr is not NULL and updating prev also.On finding the node to be deleted we will set the prev so that it points to the next of curr and after removing the link we will free curr from memory.

line of code for deleting a node in c++:-

prev->next=curr->next;

delete curr;  or  free(curr);

Write a C++ program that stores information (name, gender, birthday, phone number, civil status, religion, college course, nationality) of a student in a structure and displays it on the screen.

Answers

#include
class Student
{
public:
Student(std::string name, std::string gender, std::string phonenumber, std::string civilstatus, std::string religion, std::string course, std::string nationality)
{
Student::name = name;
Student::gender = gender;
Student::phoneNumber = phonenumber;
Student::civilStatus = civilstatus;
Student::religion = religion;
Student::collegeCourse = course;
Student::nationality = nationality;
}
void displayOnScreen()
{
std::cout << "Name: " << name << std::endl
<< std::cout << "Gender: " << gender << std::endl
<< std::cout << "Phone Number: " << phoneNumber << std::endl
<< std::cout << "Civil Status: " << civilStatus << std::endl
<< std::cout << "Religion: " << religion << std::endl
<< std::cout << "College Course: " << collegeCourse << std::endl
<< std::cout << "Nationality: " << nationality << std::endl;
}
std::string name, gender, phoneNumber, civilStatus, religion, collegeCourse, nationality;
};

When developing e-business systems, an in-house solution usually requires a ____ for a company that must adapt quickly in a dynamic e-commerce environment.
Answer
smaller initial investment and provides more flexibility
smaller initial investment but provides less flexibility
greater initial investment but provides more flexibility
greater initial investment and provides less flexibility

Answers

Answer:

greater initial investment but provides more flexibility

Explanation:

Which of the following would compile without error? A. int a = Math.abs(-5); B. int b = Math.abs(5.0); C. int c = Math.abs(5.5F); D. int d = Math.abs(5L);

Answers

Answer:

int a = Math.abs(-5)

Explanation:

Math.abs() is the function which gives the absolute value of the integer.

syntax:

Math.abs(int name);

the argument enter must be integer(int).

int b = Math.abs(5.0): here, 5.0 is not the integer, it is float. So, it gives error.

int c = Math.abs(5.5F): here, 5.5F is not the integer, it is float. So, it gives error.

int d = Math.abs(5L): L stand for long but it is not int. So, it also gives error.

Therefore, the correct result is int a = Math.abs(-5), -5 is integer.

what is ucspi-tcp pakage in qmail??

Answers

Answer: UCSPI-TCP is the sort of domain for the public that helps in building the client-server application of TCP using the command line tool of UNIX TCP in qmail

Explanation: UCSPI-TCP is referred as the UNIX Client-Server Program Interface with the help of TCP (transfer control protocol) .It is usually used for the management of the IP (internet protocol) present on the server and checks which IP's should be permitted for the connection with SMTP(simple mail transfer protocol)services.It also manages the variable or the environment constant that IP want to utilize .

____ are systems in which queues of objects are waiting to be served by various servers

A.
Queuing networks

B.
Queuing systems

C.
Holding systems

Answers

Answer: Queuing systems

Explanation:

We have  the queuing theory which gives us the in depth knowledge of queuing systems which helps us to predict the queue length and the waiting time at the respective nodes in an network. A group of queuing systems together constitute the queuing network. The queuing theory helps to cope with the demand of various services in an queuing network composed of queuing systems.

What is the data rate of a DS0 signal?

Answers

Answer: 64 Kbps

Explanation:

A database has a built-in capability to create, process and administer itself.

A.

True

B.

False

Answers

Answer:

false

Explanation:

Write a c++ program to compute a water andsewage bill. The inputis the number of gallons consumed. The bill is computed asfollows:

water costs .21dollars per gallon of water consumed

sewage service .01dollars per gallon of water consumed

Answers

Answer:

#include<iostream>

using namespace std;

//main function

int main(){

   //initialization

   float gallonConsume;

   //print the message

     cout<<"Enter the number of gallons consumed: ";

     cin>>gallonConsume;   //read the input

   float waterCost = 0.21 * gallonConsume;   //calculate the water cost

   cout<<"The water cost is: "<<waterCost<<endl;  //display

   float sewageService = 0.01 * gallonConsume;   //calculate the sewage service cost

   cout<<"The sewage service cost is: "<<sewageService<<endl;  //display

   return 0;

}

Explanation:

Include the library iostream for using the input/output instruction.

Create the main function and declare the variables.

then, print the message on the screen by using cout instruction.

the value enters by the user is read by cin instruction and store in the variable.

After that, calculate the water cost by using the formula:

[tex]Water\,cost = 0.21 * water\,consume[/tex]

then, display the output on the screen.

After that, calculate the sewage service cost by using the formula:

[tex]sewage\,service\,cost = 0.01*water\,consume[/tex]

finally, display the output on the screen.

A pointer is the memory address of a variable. FALSE TRUE

Answers

Answer:

False

Explanation:

Because pointer itself is a variable that holds the memory address of  a variable as it's content.

If you're adding an image to your report, you'll be working on the Layout Tools _______ tab.

A. Page Setup
B. Arrange
C. Design
D. Format

Answers

Answer:

the answer is design tab

Answer:

design

Explanation:

Write the following method to display three numbers in increaseing order:

public ststic void displaySortedNumbers(
double num1, double num2, double num3)

Answers

//Assuming your code is in C#
using System;
using System.Collections.Generic;
public static void displatSortedNumbers(double num1, double num2, double num3){
List list1 = new List {num1,num2,num3};
foreach( int g in list1 )
{
// Display sorted list
Console.WriteLine(g);
}
}

Unlike the climate of the other islands of Hawaii, ________Kona contains 54 different temperate zones.
that of
this is
these are
those that

Answers

Answer:

None

Explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

Unfortunately, none of these answers would be factually nor grammatically correct. For Starters Kona is not an island Kailua-kona is the capital town of the Big Island in Hawaii.

Regardless of that fact, none of the answers given would make the sentence make sense grammatically. The Only way for the sentence to make sense grammatically, the answer either needs to stay blank or be Kailua. Like so...

Unlike the climate of the other islands of Hawaii, Kailua Kona contains 54 different temperate zones.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

The sentence should be completed with 'that of,' making it read 'Unlike the climate of the other islands of Hawaii, that of Kona contains 54 different temperate zones.' Hawaii's diverse climates are heavily influenced by altitudinal variations and topographical features, leading to a range of climatic zones across its islands.

The correct completion for the sentence provided is that of. Hence, the complete sentence reads: Unlike the climate of the other islands of Hawaii, that of Kona contains 54 different temperate zones.

Hawaii is known for its diverse climate conditions. While most islands in the Pacific have a tropical type A climate, Hawaii has a variety of climatic zones due to its topography and altitudinal variation. For instance, Kauai, one of the Hawaiian Islands, is one of the wettest places on Earth, receiving more than 460 inches of rain per year. This high level of precipitation is due to the rain shadow effect caused by Mt. Wai'ale'ale. The windward side of this mountain receives substantial rainfall while the leeward side remains semi-desert due to the rain shadow.

Japan, another island group, also presents diverse climates. One of its islands, Hokkaido, features a type D climate and is known for snowfall that supports activities like downhill skiing. Japan's diverse climate is a result of its mountainous terrain, with active volcanoes like Mount Fuji influencing the regional climate conditions.

There is a relationship between the grain and thedimensionso Trueo False

Answers

Answer:

True.

Explanation:

There is a relationship between the grain and the dimensions.

rite a program that prompts the user to enter an integer and displays each of its numbers one by one.

Answers

Answer:

#include <iostream>

using namespace std;

int main()

{

   int num;

   cout<<"Enter the integer: ";

   cin>>num;

   

   while(num>0){

       

       int rem = num%10;

       cout<<rem<<endl;

       num = num/10;

       

   }

}

Explanation:

First include the library iostream in the c++ programming for input/output.

Then write the main function and declare the variable.

cout is used to display the message on the screen.

cin is used to store the value in the variable.

then used the while loop and put the condition num>0

after that, take the reminder of the number by using the operator modulus '%'.

and then print it on the screen.

after that reduce the number by one digit.

This process continue until the condition not failed.

Therefore, the all digits of the number will be printed.

Write a value-returning function isVowel that returns the value true if a given character is a vowel and otherwisereturns false.

Answers

Answer: Following is the function isVowel written in python:-

def isVowel(check):#defining isVowel function with parameter check

#following are the nested if else if for checking that check is a vowel or not if yes returning True if not returning False.

   if check == "A" or check =="a":

       return True

   elif check == "E" or check =="e":

       return True

   elif check == "I" or check =="i":

       return True

   elif check == "O" or check =="o":

       return True

   elif check == "U" or check =="u":

       return True

   else:

       return False

Explanation:

In the function we are checking in each if or elif statement that check is a vowel or not if it is a vowel then returning True if not returning False.

What are the modes of operation of WLANs?

Answers

Answer:

WLAN's or Wireless LAN Units have 2 main modes of operation

Explanation:

The Two Main modes of Operation are the following

Infrastructure Mode: in this mode the main WLAN unit becomes the main connection point in which all devices are connected to and the main unit provides an internet connection to all the devices connected to it.

Ad Hoc Mode: in this mode devices transfer data from one another back and forth without permission from a base unit.

Some WLAN units will also include 2 extra modes of operation called Bridge and Wireless Distribution System (WDS).

Bridge Mode: this mode allows the base unit to act as an intermediary and bridge two different connection points. Such as bridging a wired connection with a wireless one.

WDS Mode: this mode uses various access points to wirelessly interconnect devices to the internet using repeaters to transmit connections. It can provide internet to both wired and wireless clients.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

A final class can't be extended.TrueFalse

Answers

Answer:

True

Explanation:

A final class is something like sealed one and no one can inherit that further.

it is useful to lock our code or functionality from others

Explain what is meant by information technology (IT). Explain what is meant by information systems (IS). Why is it important to understand the differences between information technology (IT) and information systems (IS)?

Answers

Answer:Information technology(IT) :- It is the use of technology in developing, maintaining, and use of computers software, and networks for the processing and distributing the data .

Information System(IS) can be defined as a system which consists of software,hardware and trained individuals brought together to help an organization to plan,control,coordinate and to make decisions.

The difference between IT and IS is that Information Technology is the part of Information system but deals with the technology within the system.

What scheme is usually used today for encoding signed integers?

Answers

Answer:

 For encoding signed integer the two's complement scheme are used as, the number can be positive, with no fraction part and it can be negative. The computer can stored information in the form of bits and the value with the zero and one. Encoding of signed number in the two's complement with the positive integer it can be done by binary number.

True of False - use T or F The Math class can be instantiated.

Answers

Answer:

F

Explanation:

The Math class cannot  be instantiated because it has a private constructor.

However all the methods in the java.lang.Math are static which means that you can invoke them directly without having to instantiate the class. For example:

static int abs(int a) defined in the Math class can be invoked from the calling function as:

int absolute_value = Math.abs(a);

Note that the class Math is also declared as final which means it cannot be extended by any other class as well.

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