Answer:
Near field communication (NFC)
Explanation:
Near field communication (NFC) can be defined as a short-range high radio-frequency identification (RFID) wireless communication technology that is used for the exchange of data in a simple and secure form, especially for electronic devices within a distance of about 10 centimeters.
Also, Near field communication (NFC) can be used independently or in conjunction with other wireless communication technology such as Bluetooth.
Some of the areas in which Near field communication (NFC) is used are confirmation of tickets at a concert, payment of fares for public transport systems, check-in and check-out in hotels, viewing a map, etc.
Assuming you have a contactless magnetic stripe and chip reader by Square. Thus, the type of wireless transmission that this device use to receive encrypted data is near field communication (NFC).
Write a program that defines an array of integers and a pointer to an integer. Make the pointer point to the beginning of the array. Then, fill the array with values using the pointer (Note: Do NOT use the array name.). Enhance the program by prompting the user for the values, again using the pointer, not the array name. Use pointer subscript notation to reference the values in the array.
Answer:
#include<iostream>
using namespace std;
int main()
{
int a[20],n;
int *p;
cout<<"\n enter how many values do you want to enter:";
cin>>n;
for(int i=0;i<n;i++)
{
cout<<"\n Enter the "<<i+1 <<"th value :";
cin>>*(p+i);
//reading the values into the array using pointer
}
cout<<"\n The values in the array using pointer is:\n";
for(int i=0;i<n;i++)
{
cout<<"\n (p+"<<i<<"): "<<*(p+i);
//here we can use both *(p+i) or p[i] both are pointer subscript notations
}
}
Output:
In PyCharm, write a program that prompts the user for their name and age. Your program should then tell the user the year they were born. Here is a sample execution of the program with the user input in bold:What is your name? AmandaHow old are you? 15Hello Amanda! You were born in 2005.
Answer:
def main():
name = input("What is your name? ")
if not name == "" or "":
age = int(input("What is your age? "))
print("Hello " + name + "! You were born in " + str(2021 - age))
main()
Explanation:
Self explanatory
Mark is flying to Atlanta. The flight is completely full with 200 passengers. Mark notices he dropped his ticket while grabbing a snack before his flight. The ticket agent needs to verify he had a ticket to board the plane. What type of list would be beneficial in this situation?
Answer:
The list that would be helpful in this situation would be a list of people in the airport
Hope This Helps!!!
Write a program that first gets a list of integers from input. The input begins with an integer indicating the number of integers that follow. Then, get the last value from the input, which indicates a threshold. Output all integers less than or equal to that last threshold value. Assume that the list will always contain fewer than 20 integers.
Answer:
Ex: If the input is:
5 50 60 140 200 75 100
the output is:
50 60 75
The 5 indicates that there are five integers in the list, namely 50, 60, 140, 200, and 75. The 100 indicates that the program should output all integers less than or equal to 100, so the program outputs 50, 60, and 75.
For coding simplicity, follow every output value by a space, including the last one.
Such functionality is common on sites like Amazon, where a user can filter results.
#include <iostream>
#include <vector>
using namespace std;
int main() {
/* Type your code here. */
return 0;
}
The Fibonacci sequence begins with 0 and then 1 follows. All subsequent values are the sum of the previous two, for example: 0, 1, 1, 2, 3, 5, 8, 13. Complete the fibonacci() method, which takes in an index, n, and returns the nth value in the sequence. Any negative index values should return -1.
Ex: If the input is: 7
the out put is :fibonacci(7) is 13
import java.util.Scanner;
public class LabProgram {
public static int fibonacci(int n) {
/* Type your code here. */
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
int startNum;
System.out.println("Enter your number: ");
startNum = scnr.nextInt();
System.out.println("fibonnaci(" + startNum + ") is " + fibonacci(startNum));
}
}
You could use recursion to write java method for computing fibonacci numbers. Though it will be inefficient for n > about 50, it will work.
public static int fibonacci(int n) {
if (n < 0) { return -1; }
if (n < 2) { return n; }
else { return fibonacci(n-1)+fibonacci(n-2); }
}
Hope this helps.
The current term of a Fibonacci series is derived by adding the two previous terms of its sequence; and the first two terms are 0 and 1.
The code segment (without comments) that completes the program is as follows:
int T1 = 0, T2 = 1, cT;
if (n < 0){
return -1; }
for (int i = 2; i <= n; i++) {
cT = T1 + T2;
T1 = T2;
T2 = cT; }
return T2;
With comments (to explain each line)
/*This declares the first term (T1), the second term (T2) and the current term (CT).
T1 and T2 are also initialized to 0 and 1, respectively
*/
int T1 = 0, T2 = 1, cT;
//This returns -1, if n is negative
if (n < 0){ return -1;
}
//The following iterates through n
for (int i = 2; i <= n; i++) {
//This calculates cT
cT = T1 + T2;
//This passes T2 to T1
T1 = T2;
//This passes cT to T2
T2 = cT;
}
//This returns the required term of the Fibonacci series
return T2;
At the end of the program, the nth term of the series would be returned to the main method for output.
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State the Data types with two examples each
Answer:
A string, for example, is a data type that is used to classify text and an integer is a data type used to classify whole numbers. When a programming language allows a variable of one data type to be used as if it were a value of another data type, the language is said to be weakly typed. Hope it help's! :D
What is the value of 25 x 103 = ________?
Answer:
2575
heres coorect
Answer:
2575
Explanation:
you just multiply.
A junior network administrator has used the wrong cable type to connect his or her computer to the administrative port on a router and cannot establish a terminal session with the device. What layer of the OSI reference model does this problem appear to reside at
Answer: Application Layer
Explanation: trust
I'm using Visual Studio to make a grocery app for school that includes usernames and passwords. I'm given all the code then it tells me to use search arrays to implement two functions. They should return true if the username and password is found in the arrays. But i can't seem to get the function and arrays right. Below is the code and I'm supposed to implement the array in the two empty functions at the bottom. Would really appreciate some help here, thanks
Module Main
Friend blnLoggedIn As Boolean
Dim arrUsernames() As String = {"Admin", "Clerk", "Manager"}
Dim arrPasswords() As String = {"password", "password2", "password3"}
Sub Login(username As String, password As String)
blnLoggedIn = False
If VerifyUsername(username) And VerifyPassword(password) Then
'Find index for username
Dim userIndex As Integer
For loopIndex = 0 To arrUsernames.Length - 1
If arrUsernames(loopIndex) = username Then
userIndex = loopIndex
Exit For
End If
Next
'Check for password match
If arrPasswords(userIndex) = password Then
blnLoggedIn = True
Else
MessageBox.Show("Incorrect password.")
End If
End If
End Sub
Function VerifyUsername(username As String) As Boolean
End Function
Function VerifyPassword(password As String) As Boolean
End Function
End Module
Answer:
VB:
Public Function VerifyUsername(ByVal username As String) As Boolean
For positionInUsernameArray As Integer = 0 To arrUsername.Length - 1
If positionInUsernameArray = arrUsername.Length Then Exit For
If username = arrUsername(positionInUsernameArray) Then
Return True
Else
Continue For
End If
Next
Return False
End Function
Public Function VerifyPassword(ByVal password As String) As Boolean
For positionInUsernameArray As Integer = 0 To arrPassword.Length - 1
If positionInUsernameArray = arrPassword.Length Then Exit For
If password = arrPassword(positionInUsernameArray) Then
Return True
Else
Continue For
End If
Next
Return False
End Function
C#:
sealed class Main
{
internal bool blnLoggedIn;
string[] arrUsername = new string[] { "Admin", "Clerk", "Manager" };
string[] arrPassword = new string[] { "password", "password2", "password3" };
public void Login(string username, string passowrd)
{
blnLoggedIn = false;
if (VerifyUsername(username) && VerifyPassword(passowrd))
{
// Find index for username
int userIndex = 0;
for (int loopIndex = 0; loopIndex <= arrUsername.Length - 1; loopIndex++)
{
if (arrUsername[loopIndex] == username)
{
userIndex = Convert.ToInt32(loopIndex);
break;
}
else continue;
}
// Check for password match
if (arrPassword[userIndex] == passowrd)
blnLoggedIn = true;
else
MessageBox.Show("Incorrect password");
}
}
public bool VerifyUsername(string username)
{
for (int positionInUsernameArray = 0; positionInUsernameArray <= arrUsername.Length - 1; positionInUsernameArray++)
{
if (positionInUsernameArray == arrUsername.Length)
break;
if (username == arrUsername[positionInUsernameArray])
return true;
else continue;
}
return false;
}
public bool VerifyPassword(string password)
{
for (int positionInUsernameArray = 0; positionInUsernameArray <= arrPassword.Length - 1; positionInUsernameArray++)
{
if (positionInUsernameArray == arrPassword.Length)
break;
if (password == arrPassword[positionInUsernameArray])
return true;
else continue;
}
return false;
}
}
Explanation:
First I created a for loop with a "positionInUsernameArray" and singed it a value of 0. Next I stated while positionInUsernameArraywas less than or equal to arrUsername.Length - 1, positionInUsernameArraywould increment.
Once the base for loop was in place I created two if statements. The first if statement determines if positionInUsernameArray is equal to arrUsername.Length, if so, the for loop breaks and the method returns false. The second if statement determines if the parameter is equal to the position in the arrUsername array, if so, the method would return true, otherwise the for loop will restart.
For the "VerifyPassword" method, I used the same method as "VerifyUsername" just I changed the variable names.
Hope this helped :) If it didn't please let me know what happened so I can fix the code.
Have a good day!
Write a program that opens the salesdat.txt file and processes it contents. The program should display the following per store:
The total sales for each week. (Should print 5 values - one for each week). The average daily sales for each week. (Should print 5 values - one for each week).
The total sales for all the weeks. (Should print 1 value)
The average weekly sales. (Should print 1 value)
The week with the highest amount in sales. (Should print 1 week #)
The week with the lowest amount in sales. (Should print 1 week #)
The file contains the dollars amount of sales that a retail store made each day for a number of weeks. Each line in the file contains thirty five numbers, which are sales numbers for five weeks. The number are separated by space. Each line in the file represents a separate store.
//FileIO.java
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class FileIO {
//Franchise readData(String filename)
public static void main(String[] args) {
try {
FileReader file = new FileReader("Salesdat.txt");
BufferedReader buff = new BufferedReader(file);
boolean eof = false;
while (!eof) {
String line = buff.readLine();
if (line == null)
eof = true;
else
System.out.println(line);
}
buff.close();
} catch (IOException e) {
System.out.println("Error -- " + e.toString());
}
}
}
//Store.java
public class Store {
private float salesbyweek[][];
Store() {
salesbyweek = new float[5][7];
}
//getter and setters
//setsaleforweekdayintersection(int week, int day, float sale)
public void setsaleforweekdayintersection(int week, int day, float sale){
salesbyweek[week][day]=sale;
}
//float [] getsalesforentireweek(int week)
//float getsaleforweekdayintersection(int week, int day)
//businessmethod
//a. totalsalesforweek
//b. avgsalesforweek
//c. totalsalesforallweeks
//d. averageweeklysales
//e. weekwithhighestsaleamt
//f. weekwithlowestsaleamt
//analyzeresults //call a through f
//print()
}
//Franchise.java
public class Franchise {
private Store stores[];
public Franchise(int num) {
stores = new Store[num];
}
public Store getStores(int i) {
return stores[i];
}
public void setStores(Store stores, int i) {
this.stores[i] = stores;
}
}
//Driver.java
public class Driver {
public static void main(String[] args) {
}
}
Answer:
I'm going to try and help you with this question.
Explanation:
Just give me a few minutes.
Write code that prints: Ready! firstNumber ... 2 1 Run! Your code should contain a for loop. Print a newline after each number and after each line of text. Ex: If the input is: 3 the output is: Ready! 3 2 1 Run!
Answer:
Explanation:
The following code is written in Java. It asks the user to enter the first number. Then it saves that number in a variable called firstNumber. It then uses that number to loop backwards from that number to 1 and goes printing out the countdown text. A test case has been created and the output can be seen in the attached image below.
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.print("Enter First Number: ");
int firstNumber = in.nextInt();
System.out.println("Ready!");
for (int i=firstNumber; i>0; i--) {
System.out.println(i);
}
System.out.println("Run!");
}
}
Can anyone code this ?
Answer:
simple Reflex action it is the simplest from of reflex and does not depen on learning
A business should choose the platform as a service (PaaS) cloud model when: a. it designs its own applications but doesn't customize the operating system b. it doesn't need any operating system c. it doesn't design its own applications and doesn't customize the operating system d. it designs its own applications and customizes the operating system e. it doesn't design its own applications but customizes the operating syste
Answer:
a. it designs its own applications but doesn't customize the operating system.
Explanation:
Cloud computing can be defined as a type of computing that requires shared computing resources such as cloud storage (data storage), servers, computer power, and software over the internet rather than local servers and hard drives.
Generally, cloud computing offers individuals and businesses a fast, effective and efficient way of providing services.
Cloud computing comprises of three (3) service models and these are;
1. Infrastructure as a Service (IaaS).
2. Software as a Service (SaaS).
3. Platform as a Service (PaaS).
Platform as a Service (PaaS) refers to a type of cloud computing model in which a service provider makes available a platform that allow users (software developers) to build code (develop), run, store information in a database and manage applications over the internet.
The main purpose of a Platform as a Service (PaaS) is to provide an enabling environment for software developers to code without having to build and maintain complex infrastructure needed for the development, storage and launching of their software applications.
Simply stated, PaaS makes provision for all of the software and hardware tools required for all the stages associated with application development over the internet (web browser).
Some of the advantages of Platform as a Service (PaaS) is that, it avails software developers with enough convenience as well as simplicity, service availability, ease of licensing and reduced costs for the development of software applications.
Basically, platform as a Service (PaaS) providers (vendors) usually provide their clients (software developers) with server and data storage, operating system, data center, networking resources, etc., while the software developers design, deploy and manage their software applications.
Hence, a business should choose the platform as a service (PaaS) cloud model when it designs its own applications but doesn't customize the operating system.
design a relational database in EER for bike helmets and their reviews. a bike helmet has a name and color attributes. a bike company has its name (primary key) and location attributes
Answer:something you gotta do on your own
Explanation:
EER diagrams are essentially an expanded form of entity-relationship (ER) diagrams. EER models are useful tools for creating high-level model databases. By carefully examining the qualities and limitations, you may plan databases more thoroughly thanks to their improved features.
What design a relational database in EER?Set up a relationship table. Include the main keys of all involved Entities in the table as fields with the appropriate data types. Add each attribute as a table field if the relationship has any. Establish a primary key by combining the primary keys of all involved entities.
The modeling interface in MySQL Workbench is absolutely dependent on Enhanced Entity-Relationship (EER) diagrams. The relationships between the tables in your model are depicted visually in EER diagrams.
Therefore, The related diagram displays modifications performed using the Model Editor.
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Create a class named Employee. The class must contain member variables for the employee name and salary. It should contain getter methods for returning the name and salary. It should also contain setter methods for storing the name and salary. The class must include a constructor method for setting both the name and the salary. In addition, it should contain a toString() method.2- Create the client code to test the class Employee.
Answer:
Explanation:
The following code was written in Java. The code contains the Employee class which contains the two variables (name, salary), the constructor, getter and setter methods for both variables, and an overwritten toString method. It also contains a tester class with the main method inside and creates a Employee object and initializes it. Then it calls the toString method. The output can be seen in the attached image below. Due to technical difficulties I have added the code as a txt file below.
What does the AVERAGE function calculate? the total sum of a list of values the arithmetic mean of a list of values the total number of values in a list the percentage of values in a list
Answer:
B) the arithmetic mean of a list of values
Explanation:
on Edge
The Average function calculates the arithmetic mean of a list of values. Therefore, option B is the correct option.
What is the average?In its most general definition, an average can be considered as the representative number or figure from the whole list. The average of a list containing multiple values is obtained by adding all the values and dividing them up by the total number of values.
The ultimate objective of calculating the average is to discover the value that represents the whole list. Average is also known as mean, and it works as a central value in the list, which is comprehensive in nature. It works as an approximate or rough estimate, which helps us in making decisions in daily life.
Thus, the average function calculates the arithmetic mean of a list of values. Therefore, option B is the correct option.
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You are hired as an IT consultant for the government owned mobile operating company, Teletalk. Based on the following scenario, make a report for the decision makers to resolve the stated problems.
Despite aggressive campaigns to attract customers with lower call rates and internet packages, Teletalk has been losing a large number of its subscribers (users). Management wants to know why so many customers are leaving Teletalk and what can be done to attract them back. Are customers deserting because of poor customer service, uneven network coverage, wireless service charges, or competition from other mobile operators with extra services (GP/BL)? How can the company use information systems to help find the answer? What management decision could be made using information from these systems? What competitive strategy Teletalk can develop using information systems and how?
Answer:
An IT consulting report may be a transcript created via an IT professional that addresses all the possible aspects of an enterprise or a corporation. It is often an aggressive analysis report, Project reputation report, Business Plan report, or a Supply Chain Model file
Let's see how to write this kind of report
(1) Introduction.
(2) Point out the problems.
(3) Addressing the problems.
(4) business model and competitive analysis.
(5) Conclusion.
Explanation:
Teletalk may be a government telecommunication company. it's been going out of the marketplace for quite a little bit of time and is thanks to a scarcity of human resources and innovative applications within the field.
The company uses outdated Customer Management Systems (CMS) now so as to research potential customers and gather information about them. they need to be battling retaining customers after a brief period of your time. Their customer service isn't fair and therefore the customers aren't satisfied with the service provided by the corporate.
In order to function well, they need to implement enterprise resource planning ( ERP) data systems.
A data system is everything starting from Human resources to hardware and software. they will be applied everywhere from Customer Retainment and Engagement they're termed as Customer Management Systems and if it's wont to Business Model of any organization then it's referred to as Enterprise Resource Planning Systems (ERP).
By incorporating information systems in teletalk there is often a performance improvement in Sales, Management, Technology, and D-S (Demand-Supply Model).
All these are going to be an excellent advantage to teletalk so teletalk should anticipate innovating the present system with a more reliable and efficient one
rules used in naming variables in object oriented programming
Answer:
Explanation: Name your variables based on the terms of the subject area, so that the variable name clearly describes its purpose.
Can a result that contains road maps for European countries have a highly meets rating
Đápán3e
Explanation:
(4 marks)
(d) Outline the steps involved in inserting a picture from a file in a word processing document using
copy and past
Answer:
HELLO IAM LOKESH IAM NEW PLEASE SUPPORT ME
What are the trinity of the computer system
Answer:
he Computer, the System, and the World. Simics is a great product for simulating computer systems that contain processors and execute code.
Explanation:
he Computer, the System, and the World. Simics is a great product for simulating computer systems that contain processors and execute code.
Learning Task 3: Write the safety requirement indicated in each number on a
separate sheet of paper
Answer:
Please find the complete question in the attached file.
Explanation:
Recall that its SIS consists of one or even more Safety - management Functions (SIFs), which can include a mixture of the device(s), logic when and), and a complete component (elements), along with all user interface as well as power sources, such that two sets of criteria are delineated for each SIF by SRS: the System Requirement Set as well as the Integrate Requisites Set.
They have outlined their technical needs and have sent some of the documentation along with the potential provider's SLAs and terms of service to the legal department to review. Which of the following might be a concern expressed by the legal department after reviewing these documents?
a. Ensuring data is hosted in the appropriate regions for the cloud service provider
b. Ensuring that the corporation has a way to measure uptime to ensure SLAs are actually met *J#
c. Ensuring that there is a guarantee that the cloud service provider will provide notice in the event that they decide to discontinue operations
d. Ensuring that the cloud service provider will allow an audit of their network for security purposes
Answer:
A concern that might be expressed by the legal department after reviewing the SLAs and terms of service is:
c. Ensuring that there is a guarantee that the cloud service provider will provide notice in the event that they decide to discontinue operations.
Explanation:
The SLA that the legal department will review should include a description of the services to be provided, expected service levels, measurement metrics for each service, each party's duties and responsibilities, and the contract remedies or penalties for breach, among others. But the legal department will be mostly concerned with legal remedies during breaches, liability limitation and warranties, and intellectual property protection issues than with more technical issues. This is despite the fact that all the terms of the SLA will be diligently reviewed by the legal department.
What should businesses do in order to remain competitive under the current Cloud
landscape?
Answer:
Cloud Landscape
They must evangelize the benefits of cloud computing to company executives in order to assist them in developing and extracting business benefits that will give them a competitive advantage and increase profits
Explanation:
The most successful organisations carefully plan out a multiyear effort to improve their cloud adoption, focusing on multiple streams of work across several stages of maturity.
Cloud computing governance is difficult even when only one cloud provider is involved, and it becomes even more difficult as organisations move toward multi cloud.
Continuous workload placement analysis involves reassessing workloads at a regular cadence, evaluating whether the current execution venue sufficiently meets the organization’s needs and if migrating to an alternative model provides higher value without adding significant risk to the organization’s operations
They must evangelize the benefits of cloud computing to company executives in order to assist them in developing and extracting business benefits that will give them a competitive advantage and increase profits.
In this question, the response is "Cloud Landscape" which can be defined as follows:
The organizations should adopt these new technologies to benefit from the digital transformation offered by the cloud.New enterprises were embracing cloud computing management strategies, placing established companies at risk.In the multi-year efforts for improving cloud security were meticulously planned by even the most successful enterprises. In several contributing to higher at various maturity levels are addressed.The multi-cloud plan enables governance of cloud computing increasingly challenging, even and there is only one cloud service provider involved in the agreement.Learn more:
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To use AutoSum with a row of four values, where must your cursor be to have the sum appear in the row if you have not highlighted the cells?
Answer:
on the first empty cell to the right of the last cell containing a value.
Explanation:
The AutoSum function in excel gives a shortcut path to taking the sum of numeric values in a row or column of data. The Autosum uses the sum function to take the addition of all the desired rows or columns values without needing to make a manual highlight of the data. To use AutoSum with a row of 4 values, the cursor must be placed immediately at the cell next 4th row cell containing a value. This is equivalent to the first empty cell to the right of the last cell containing a value, then autosum is clicked in the home tab and all 4 cells will be highlighted as it uses the sum function to calculate the sun of the 4 row values.
The Autosum Excel function could be made accessible with ALT+ the = sign, and the formula is automatically created to add a continuous range of all numbers.
The AutoSum function in Excel provides a shortcut to the sum of numerical values in a data line or column. To add all the desired lines or column values the Autosum uses the total function without having to make a manual highlight. The cursor must immediately be placed in the fourth cell next row containing a value to use AutoSum with a round of 4 values. The first empty cell to the right of the latter cell with a value is equal to that of the auto-sum, then the domestic tab clicks on auto-sum, and the sum function is used to calculate the sun of the four-row values to highlight all 4 cells.Therefore, the final answer is "on the first empty cell to the right side of the last cell with value".
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A small e-commerce company uses a series of Robotic Process Automation solutions to manage the backup of data from individual workstations to an on-premise server. However, the company is opening another office and would like to more easily share data between locations, along with better protecting the data from loss.
Which technology could be combined with their current automated processes to do this?
Answer:
Cloud.
Explanation:
Cloud computing can be defined as a form of data computing which requires the use of shared computing resources such as cloud storage (data storage), servers, computer power, and software over the internet rather than local servers and hard drives.
Generally, cloud computing offer individuals and businesses a fast, secured, effective and efficient way of providing services over the internet.
Basically, cloud computing comprises three (3) service models and these include;
1. Platform as a Service (PaaS).
2. Software as a Service (SaaS).
3. Infrastructure as a Service (IaaS).
Additionally, the two (2) main characteristics of cloud computing are;
I. Measured service: it allows cloud service providers to monitor and measure the level of service used by various clients with respect to subscriptions.
II. Resource pooling: this allows cloud service providers to serve multiple customers or clients with services that are scalable and provisional.
For example, the provisioning of On-demand computing resources such as storage, network, virtual machines (VMs), etc., so as to enable the end users install various software applications, database and servers.
Hence, the technology that could be combined by the small e-commerce company with its current automated processes is cloud storage.
There are different tools used in data sharing. The technology that could be combined with their current automated processes to do this is blockchain.
Blockchain is known to use different kinds of distributed ledger that is often shared across networked devices. Through this, people on the network can share files and values securely and even on a peer-to-peer basis. This is no need any middlemen.
Data protected in blockchain is very vital. All records on a blockchain are known too be secured through the act of cryptography. Here, Network people do have their own private keys that are given to them for any transactions they make.
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Daniella is configuring a Wi-Fi network in a restaurant for access by staff and customers. How far does WiFi, the broadband wireless technology that allows computers and other devices to communicate over a wireless signal typically travel indoors in the form of radio waves?
a. 1000 feet
b. 300 feet
c. 120 feet
d. 500 feet
Answer:
c. 120 feet
Explanation:
WiFi can be defined as a wireless local area network that allows network devices such as access points (APs), computers (both laptops and desktops), smartphones, smart televisions, etc., to communicate with each other wirelessly over a short-ranged network. It is a standard communication network that uses radio waves to establish a channel (medium) between multiple network devices.
This ultimately implies that, the network range or distance covered by WiFi is largely dependent on transmission power and frequency. The standard range or distance covered by WiFi is about 50 meters (160 feet).
Hence, a WiFi traveling indoors in the form of radio waves and operating on the 2.4 GHz band would cover up to a distance of 150 feet. Also, a WiFi can reach or travel up to 300 feet outdoors.
In this scenario, the WiFi network Daniella is configuring in a restaurant for access by staff and customers can go as far as 120 feet indoors.
What notation requires parentheses in order to correctly define the order of computation? Group of answer choices prefix notation infix notation postfix notation all of the above
Answer:
The correct answer is Option B (infix notation).
Explanation:
The conventional format of logical as well as mathematical formulas where operators write the precise manner of infix amongst variables or the inputs is considered as Infix notation.Computer systems cannot easily be scanned like prefix and post-fix kind of notation, nevertheless owing to its convenience it has been used throughout numerous computer programs.All other given options aren't related to the given scenario. So the above is the correct one.
In the revised version of the library system with Book and Periodical, Question 16 options: a) Book is a subclass of Periodical b) Periodical is a subclass of Book c) Book and Periodical are subclasses of LoanableItem d) Book and Periodical implement LoanableItem
Answer:
c. Book and Periodical are subclasses of LoanableItem
Explanation:
Books are kept in library in a periodical manner. Both classes are not superior, they are subclasses of LoanableItem. Library uses common guide which makes it easy to find a book.
When a Select Case statement executes, the value of the test expression is compared with the values that follow each of the _______ keywords.
Answer:
Case
Explanation:
In Computer programming, a variable can be defined as a placeholder or container for holding a piece of information that can be modified or edited.
Basically, variable stores information which is passed from the location of the method call directly to the method that is called by the program.
For example, they can serve as a model for a function; when used as an input, such as for passing a value to a function and when used as an output, such as for retrieving a value from the same function. Therefore, when you create variables in a function, you can can set the values for their parameters.
A Select Case statement can be defined as a conditional statement that avails software developers or programmers the ability to test a variable by comparing it with a list of values.
In a Select Case statement, each variable is referred to as a Case.
Generally, when a Select Case statement executes, the value of the test expression is compared with the values that follow each of the Case keywords.
