Answer:
a) Chess game moves:- Tree data structure is not a good fit.
b) Public transportation paths:- Tree data structure is not a good fit.
c) Relationshi[p among computer files and folders:- Tree data structure is a good fit.
d) Genealogical information:- Tree data structure is a good fit.
e) Parts of books:- Tree data structure is a good fit.
f) Programming language history:- Tree data structure is not a good fit.
g) Mathematical expression:- Tree data structure is a good fit.
Explanation:
a) Chess game moves:- Tree data structure is not a good fit. Since in tree data structure moving backward or sharing the node is not that much easy. Presume, In chess, you have to check any box is empty or not. Here, Graph is the best fit.
b) Public transportation paths:- Tree data structure is not a good fit. whenever shortest path, routes, broadcast come always graph is a good option. Because in the tree you don't know how many time you visit that node
c) Relationshi[p among computer files and folders:- Tree data structure is a good fit. Since they have a predefined route. Go to 'c' drive. Open a particular folder and open a particular file.
d) Genealogical information:- Tree data structure is a good fit. Since genealogical information also has a predefined route. Here, the Graph is not suitable.
e) Parts of books:- Tree data structure is a good fit. Since manages the chapters and topics are not that much complex. You can see any book index which is in a very pretty format.
f) Programming language history:- Tree data structure is not a good fit. To store the history of the programming language we need some unconditional jumps that's why the tree is not suitable.
g) Mathematical expression:- Tree data structure is a good fit. The tree is suitable in some cases. We have an expression tree for postfix, prefix.
difrent between computer and computer system
Answer:
hope it helps..
Explanation:
a computer exists in a single place and does a primitive set of functions. A computer system combines a computer with many other things to perform a complex set of functions. It can also exist in a single place, but it may exist in many places at the same time.
HAVE A NICE DAY
What is the primary difference between BMPs, JPEGs, and GIFs?
Answer:
BMPs are not compressed; JPEGs and GIFs are compressedExplanation:
Consider the following class definitions.public class Bike{private int numWheels = 2;// No constructor defined}public class EBike extends Bike{private int numBatteries;public EBike(int batteries){numBatteries = batteries;}}The following code segment appears in a method in a class other than Bike or EBike.EBike eB = new EBike(4);Which of the following best describes the effect of executing the code segment?А. An implicit call to the zero-parameter Bike constructor initializes the instance variable numwheels. The instance variable numBatteries is initialized using the value of the parameter batteries.
B. An implicit call to the one-parameter Bike constructor with the parameter passed to the EBike constructor initializes the instance variable numwheels. The instance variable numBatteries is initialized using the value of the parameter batteries. C. Because super is not explicitly called from the EBike constructor, the instance variable numWheels is not initialized. The instance variable numBatteries is initialized using the value of the parameter batteries.
D. The code segment will not execute because the Bike class is a superclass and must have a constructor. E The code segment will not execute because the constructor of the EBike class is missing a second parameter to use to initialize the numWheels instance variable.
Answer:
The answer is "Option A".
Explanation:
Please find the complete program in the attached file.
The given program includes a super-class Bike having a private integer numWheels parameter. The class EBike inherits the class Bike, EBike comprises one parameter function Object() which utilizes its variable number of the private integer Battery level of the battery parameter and the wrong choice can be defined as follows:
In choice B, it is wrong since there is no constructor with a single argument in the Bike class.
In choice C, it is wrong since there no need to call the base class constructor with the super keyword.
In choice, D is wrong because there no need to create a constructor of the base class.
In choice, E is wrong because it does not require the second EBike constructor parameter.
The statement that best describes the effect of executing the code segment is (a) an implicit call to the zero-parameter Bike constructor initializes the instance variable numwheels. The instance variable numBatteries is initialized using the value of the parameter batteries.
Given that the following object is defined in another class (say the Main class)
EBike eB = new EBike(4);
Also, the class Bike is a super class of the class EBike, where Ebike inherits the properties of class Bike.
It means that:
Option (a) is correct.
This is so, because:
An implicit call of one parameter to class cannot be used, as in option B.It is not necessary to call the Bike class, as in option C.It is not necessary to create a constructor of the EBike class, as in option D.Read more about classes at:
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Calculate the boiling point of 3.42 m solution of ethylene glycol, C2H602, in water (Kb =0.51°C/m, the normal boiling point of water is 100°C):
Answer:
128.10 degree Celsius
Explanation:
The boiling point is given by
[tex]T_b = \frac{1000*K_b * w}{M*W}[/tex]
Substituting the given values, we get -
[tex]T_b = \frac{1000*0.51 * 3.42}{62.07}\\T_b = 28.10[/tex]
Tb is the change in temperature
T2 -T1 = 28.10
T2 = 28.10 +100
T2 = 128.10 degree Celsius
2- Write aC+ program that calculates the sum of all even numbers from [1000,2000], using the while loop.
Answer:
#include <iostream>
using namespace std;
int main() {
int n = 1000;
int sum = 0;
while(n <= 2000) {
sum += n;
n += 2;
}
cout << "sum of even numbers in [1000..2000] = " << sum << endl;
}
Explanation:
This will output:
sum of even numbers in [1000..2000] = 751500
What aspect should you consider before adding pictures to a document?
You should structure the BLANK first before you search for a relevant picture.
Answer:
You should structure the text first before you search for a relevant picture.
Explanation:
When adding a picture or pictures to a text document, the structure of the text must be considered.
Structure as used in the above sentence means (but is not limited to), the headings, the layouts, the spacing, paragraphs and word formatting in the document.
In other words, the way the document is organized
All these must be put in to place before one adds pictures into the document.
Write a program that tells what coins to give out for any amount of change from 1 cent to 99 cents. For example, if the amount is 86 cents, the output would be something like the following:
86 cents can be given as 3 quarters 1 dime and 1 penny
Use coin denominations of 25 cents (quarters), 10 cents (dimes), and 1 cent (pennies). Do not use nickel and half dollar coins. Your program will use the following function (among others):
void computeCoin(int coinValue, int& number, int& amountLeft);
For example, suppose the value of the variable amountleft is 86. Then, after the following call, the value of number will be 3 and the value of amountLeft will be 11 (because if oyu take three quarters from 86cents, that leaves 11 cents):
computecoins (25, number, amountLeft);
Include a loop that lets the user repeat this computation for new input values until the suer says he or she wants to end the program (Hint: use integer division and the % operator to implement this function.)
Add all numbers up
and you will get your sum
write a python program to calculate the average of two numbers
Answer:
n1 = int(input("Please enter a number<:"))
n2= int(input("Please enter a number<:"))
sum = n1 + n2
print("The average of the two numbers is", sum / 2)
Write a program that repeatedly shows the user a menu to select the shape form three main shapes or to print the shapes created so far. If the user selects to create a new shape, the program prompts the user to enter the values for the size of the selected shape (How many of the selected shape user wants to create). The shape is then stored in an array. If the user selects to print the current shapes, print the name and the total area of each shape to the console.
Answer:
Explanation:
The following code is written in Python. It creates a program that keeps printing out a menu allowing the user to create shapes. These shapes are saved in an array called shapes. Once the user decides to exit, it prints all of the shapes in the array along with their total area. The output can be seen in the attached picture below. Due to technical difficulties, I have added the code as a txt file below.
Consider the following import statement in Python, where statsmodels module is called in order to use the proportions_ztest method. What are the inputs to proportions_ztest method
Answer:
a. count of observations that meet a condition (counts), total number of observations (nobs), Hypothesized value of population proportion (value).
Explanation:
In other to use the proportion_ztest method, the need to make import from the statsmodel module ; statsmodels.stats.proportion.proportions_ztest ; this will allow use use the Z test for proportion and once this method is called it will require the following arguments (count, nobs, value=None, alternative='two-sided', prop_var=False)
Where;
nobs = number of observations
count = number of successes in the nobs trial or the number of successes for each independent sample.
Value = hypothesized value of the population proportion.
Implement a program that manages shapes. Implement a class named Shape with a method area() which returns the double value 0.0. Implement three derived classes named Rectangle, Square, and Circle. Declare necessary properties in each including getter and setter function and a constructor that sets the values of these properties. Override the area() function in each by calculating the area using the defined properties in that class.
Answer:
Explanation:
The following code is written in Python. It creates the parent class Shape and the three subclasses Rectangle, Square, and Circle that extend Shape. Shape has the constructor which is empty and the area method which returns 0.0, while the three subclasses take in the necessary measurements for its constructor. Each subclass also has getter and setter methods for each variable and an overriden area() method which returns the shapes area.
class Shape:
def __init__(self):
pass
def area(self):
return 0.0
class Square(Shape):
_length = 0
_width = 0
def __init__(self, length, width):
self._width = width
self._length = length
def area(self):
area = self._length * self._width
return area
def get_length(self):
return self._length
def get_width(self):
return self._width
def set_length(self, length):
self._length = length
def set_width(self, width):
self._width = width
class Rectangle(Shape):
_length = 0
_width = 0
def __init__(self, length, width):
self._width = width
self._length = length
def area(self):
area = self._length * self._width
return area
def get_length(self):
return self._length
def get_width(self):
return self._width
def set_length(self, length):
self._length = length
def set_width(self, width):
self._width = width
class Circle(Shape):
_radius = 0
def __init__(self, radius):
self._radius = radius
def area(self):
area = 2 * 3.14 * self._radius
return area
def get_radius(self):
return self._radius
def set_radius(self, radius):
self._radius = radius
Both symmetric and asymmetric encryption methods have their places in securing enterprise data. Compare and contrast where each of these are used in real-life applications. Use at least one global example in identifying the differences between applications.
You are troubleshooting network connectivity issues on a workstation. Which command would you use to request new IP configuration information from a DHCP server?
Answer:
ipconfig / release command will be used to request new IP configuration information from a DHCP server
Explanation:
The ipconfig /release sends a DHCP release notification to the client so that the client immediately releases the lease henceforth updating the server's status information . This command also mark the old client's id as being available. Thus, the command ipconfig /renew then request a new IP address.
When creating a multi-dimensional array dynamically in C/C++ the Memory Manager will go to great pains to make sure the array is completely contiguous with each row followed immediately by another row in the array. The goal is to keep all the data together in memory rather than "wherever it fits." A. True B. False
Answer:
Here the statement is false.
Explanation:
In C/C++, we can define multidimensional arrays in simple words as an array of arrays. Data in multidimensional arrays are stored in tabular form (in row-major order).
General form of declaring N-dimensional arrays:
data_type array_name[size1][size2]....[sizeN];
data_type: Type of data to be stored in the array.
Here data_type is valid C/C++ data type
array_name: Name of the array
size1, size2,... ,sizeN: Sizes of the dimensions.
Foe example:
Two dimensional array:
int two_d[10][20];
Three dimensional array:
int three_d[10][20][30];
Question Statement: Explain the steps needed to the display all the items in a linked list
Answer:
A list of linked data structures is a sequence of linked data structures.
The Linked List is an array of links containing items. Each link contains a link to a different link. The second most frequently used array is the Linked List.
Explanation:
Create a node class with 2 attributes: the data and the following. Next is the next node pointer.
Create an additional class with two attributes: head and tail.
AddNode() adds to the list a new node:
Make a new node.
He first examines if the head is equal to zero, meaning that the list is empty.
The head and the tail point to the newly added node when this list is vacant.
If the list isn't empty, the new node will be added at the end of the list to point to the new node of tail. This new node is the new end of the list.
Show() will show the nodes in the list:
Set a node current that first points to the list header.
Cross the list until the current null points.
Show each node by referring to the current in each iteration to the next node.
Waygate's residential Internet modem works well but is sensitive to power-line fluctuations. On average, this product hangs up and needs resetting every 200 hours. On average about 45 minutes is needed to reset this product. What is this product's availability
Answer:
The answer is "In excess of 0.95 "
Explanation:
[tex]MTBF= 200\ hours (12,000\ minutes)\\\\MTR= 45\ minutes (0.75\ hours)[/tex]
Availability equation [tex]=\frac{ MTBF}{(MTBF+MTR)}[/tex]
Calculating the minutes as the common units:
[tex]= \frac{12,000}{(12,000+45)}\\\\= \frac{12,000}{(12,045)}\\\\= 0.9962\\\\= In\ excess\ of\ 0.95[/tex]
Calculating the hours as the common units:
[tex]= \frac{200}{(200+0.75)}\\\\= \frac{200}{200.75}\\\\= 0.9962\\\\= In \ excess\ of\ 0.95[/tex]
Create a static method that: - is called appendPosSum - returns an ArrayList - takes one parameter: an ArrayList of Integers This method should: - Create a new ArrayList of Integers - Add only the positive Integers to the new ArrayList - Sum the positive Integers in the new ArrayList and add the Sum as the last element For example, if the incoming ArrayList contains the Integers (4,-6,3,-8,0,4,3), the ArrayList that gets returned should be (4,3,4,3,14), with 14 being the sum of (4,3,4,3). The original ArrayList should remain unchanged.
Answer:
The method in Java is as follows:
public static ArrayList<Integer> appendPosSum(ArrayList<Integer> nums) {
int sum = 0;
ArrayList<Integer> newArr = new ArrayList<>();
for(int num : nums) {
if(num>0){
sum+=num;
newArr.add(num); } }
newArr.add(sum);
return newArr;
}
Explanation:
This defines the method; it receives an integer arraylist as its parameter; nums
public static ArrayList<Integer> appendPosSum(ArrayList<Integer> nums) {
This initializes sum to 0
int sum = 0;
This declares a new integer arraylist; newArr
ArrayList<Integer> newArr = new ArrayList<>();
This iterates through nums
for(int num : nums) {
If current element is greater than 0
if(num>0){
This sum is taken
sum+=num;
And the element is added to newArr
newArr.add(num); } }
At the end of the iteration; this adds the calculated sum to newArr
newArr.add(sum);
This returns newArr
return newArr;
}
At one college, the tuition for a full-time student is $6,000 per semester. It has been announced that the tuition will increase by 2 percent each year for the next five years. Design a program with a loop that displays the projected semester tuition amount for the next five years.
Answer:grhgrt
Explanation:
The program is an illustration of loops;
Loops are program statements used to perform repetition
The tuition programThe program written in Python, where comments are used to explain each action is as follows:
#This initializes the fee
fee = 6000
#The following loop is repeated 5 times
for i in range(5):
#This calculates the fee, each year
fee *= 1.02
#This prints the calculated fee
print(round(fee,2),end=" ")
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Write a program whose inputs are three integers, and whose output is the smallest of the three values. Ex: If the input is: 7 15 3 the output is: 3
Answer:
The program in Python is as follows:
nums = []
for i in range(3):
num = int(input(""))
nums.append(num)
print(min(nums))
Explanation:
This initializes a list of numbers
nums = []
This loop is repeated 3 times
for i in range(3):
For each repetition, this prompts the user for input
num = int(input(""))
This appends the input to the list
nums.append(num)
This gets the smallest of the three inputs using the min() function. The smallest is also printed
print(min(nums))
The Answer is in Bold:
#include <iostream>
using namespace std;
int main() {
int a, b, c; //NOTE: you don't have to put a, b, c. you can put it as x, y, z
//or you can make it as num1, num2, num3 etc.
cin >> a;
cin >> b;
cin >> c;
if (a < b && a < c) {
cout << a <<endl;
}
else if(b < a && b < c) {
cout << b << endl;
}
else {
cout << c <<endl;
}
return 0;
}
A scheduler needs to determine an order in which a set of processes will be assigned to processor. Theith process requirestiunits of time and has weightwi. For a given schedule, definethe finish time of processito be the time at which processiis completed by the processor. (Assumethat the processor starts processing the tasks at time 0.)
Answer:
d
Explanation:
Calculate the total capacity of a disk with 2 platters, 10,000 tracks, an average of
400 sectors per track, and 512 bytes per sector?
Answer:
[tex]Capacity = 2.048GB[/tex]
Explanation:
Given
[tex]Tracks = 10000[/tex]
[tex]Sectors/Track = 400[/tex]
[tex]Bytes/Sector = 512[/tex]
[tex]Platter =2[/tex]
Required
The capacity
First, calculate the number of Byte/Tract
[tex]Byte/Track = Sectors/Track * Bytes/sector[/tex]
[tex]Byte/Track = 400 * 512[/tex]
[tex]Byte/Track= 204800[/tex]
Calculate the number of capacity
[tex]Capacity = Byte/Track * Track[/tex]
[tex]Capacity= 204800 * 10000[/tex]
[tex]Capacity= 2048000000[/tex] --- bytes
Convert to gigabyte
[tex]Capacity = 2.048GB[/tex]
Notice that the number of platters is not considered because 10000 represents the number of tracks in both platters
on a client server network clients and servers usually require what to communicate?
Answer:
A connectivity device. Your colleague, in describing the benefits of a client/server network, mentions that it's more scalable than a peer-to-peer network.
Explanation:
A ___________ consists of a large number of network servers used for the storage, processing, management, distribution, and archiving of data, systems, web traffic, services, and enterprise applications.
Answer:
Data center
Explanation:
A network service provider can be defined as a business firm or company that is saddled with the responsibility of leasing or selling bandwidth, internet services, infrastructure such as cable lines to both large and small internet service providers.
Generally, all network service providers, internet service providers and most business organizations have a dedicated building or space which comprises of a large number of computer systems, security devices, network servers, switches, routers, storage systems, firewalls, and other network associated devices (components) typically used for remote storage, processing, management, distribution, and archiving of large amount of data, systems, web traffic, services, and enterprise applications.
Furthermore, there are four (4) main types of data center and these includes;
I. Managed services data centers.
II. Cloud data centers.
III. Colocation data centers.
IV. Enterprise data centers.
How much data do sensors collect?
Answer:
2,4 terabits (TB) of data every minute. Sensors in one smart-
Mining safety sensors may create up to 2.4 terabits (TB) of data every minute.
What is the significance of sensors?Sensors can help to improve the world by improving diagnostics in medical applications, the performance of energy sources such as fuel cells, batteries, and safety, solar power, people's health, and security, sensors for exploring space and the known university, and improved environmental monitoring.
Sensors play an important role in industrial applications such as process control, monitoring, and safety. The change in sensor output compared to a unit change in input is measured as sensitivity.
It provides several advantages, including increased sensitivity during data gathering, practically lossless transmission, and continuous, real-time analysis.
Real-time feedback and data analytics services ensure that processes are operational and being carried out optimally. Sensors in a single smart-connected house may generate up to 1 gigabit (GB) of data every week.
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Security monitoring has detected the presence of a remote access tool classified as commodity malware on an employee workstation. Does this allow you to discount the possibility that an APT is involved in the attack
Answer:
No it doesn't
Explanation:
Targeted malware can be linked to such high resource threats as APT. Little or nothing can be done to stop such advanced persistent threats. It is necessary to carry out an evaluation on other indicators so that you can know the threat that is involved. And also to know if the malware is isolated or greater than that.
computer __ is any part of the computer that can be seen and touched
The range of a finite nonempty set of $n$ real numbers $S$ is defined as the difference between the largest and smallest elements of $S$. For each representation of $S$ given below, describe an algorithm in pseudo code to compute the range. Indicate the time efficiency classes of these algorithms using Big-$O$.
Answer: Hello your question is poorly written attached below is the well written question
answer:
a) Determine ( compute ) the difference between the max and minimum value. determine the Min and max values using 1.5n comparisons
time efficiency = θ( n )
b) A(n-1) - A(0)
time efficiency = θ( 1 )
Explanation:
a) An unsorted array
To find the maximum and minimum values scan the array of elements , then determine ( compute ) the difference between the max and minimum value. to determine the range. Alternatively determine the Min and max values using 1.5n comparisons
Algorithm's time efficiency = θ( n )
b) A sorted array
To determine the range, we will determine the difference between the first and last element i.e. A(n-1) - A(0)
time efficiency = θ( 1 )
What is the key stroke combination for BOLD text?
O Ctrl + B
O Ctrl + D
O Ctrl + H
O Ctrl + M
Answer:
Ctrl + B.....................
The program DebugTwo2.cs has syntax and/or logical errors. Determine the problem(s) and fix the program.// This program greets the user// and multiplies two entered valuesusing System;using static System.Console;class DebugTwo2{static void main(){string name;string firstString, secondSting;int first, second, product;Write("Enter your name >> );name = ReadLine;Write("Hello, {0}! Enter an integer >> ", name);firstString = ReadLine();first = ConvertToInt32(firstString);Write("Enter another integer >> ");secondString = Readline();second = Convert.ToInt(secondString);product = first * second;WriteLine("Thank you, {1}. The product of {2} and {3} is {4}", name, first, second, product);}}
Answer:
The corrected code is as follows:
using System;
using static System.Console;
class DebugTwo2{
static void Main(string[] args){
string name;string firstString, secondString;
int first, second, product;
Write("Enter your name >> ");
name = ReadLine();
Write("Hello, {0}! Enter an integer >> ", name);
firstString = ReadLine();
first = Convert.ToInt32(firstString);
Write("Enter another integer >> ");
secondString = ReadLine();
second = Convert.ToInt32(secondString);
product = first * second;
Write("Thank you, {0}. The product of {1} and {2} is {3}", name,first, second, product);
}
}
Explanation:
string name;string firstString, secondString; ----- Replace secondSting with secondString,
int first, second, product;
Write("Enter your name >> "); --- Here, the quotes must be closed with corresponding quotes "
name = ReadLine(); The syntax of readLine is incorrect without the () brackets
Write("Hello, {0}! Enter an integer >> ", name);
firstString = ReadLine();
first = Convert.ToInt32(firstString); There is a dot between Convert and ToInt32
Write("Enter another integer >> ");
secondString = ReadLine(); --- Readline() should be written as ReadLine()
second = Convert.ToInt32(secondString);
product = first * second;
Write("Thank you, {0}. The product of {1} and {2} is {3}", name,first, second, product); --- The formats in {} should start from 0 because 0 has already been initialized for variable name
}
}
You are required to make a carrier with the following details:
Frequency-1 hz/sec
Amplitude - 2
Phase - O degree
Once this carrier has been drawn, please perform the following on the data:
10110010
1. FSK
2. ASK
3. PSK