Answer:
C. Incremental backup
Explanation:
An incremental backup is a type of backup where the succeeding copies of the data is made up of only those positions that have changed since the previous or prior copies were made. Such backups are desired since they limit the usage of space for storage and these types of back ups are faster to do that the differential backup.
When we bring this explanation to this question, we can easily see that the backup that is being carried out is done on everything that has changed since the last backup (previous backup). Therefore this is an incremental backup.
Write a function gcdRecur(a, b) that implements this idea recursively. This function takes in two positive integers and returns one integer.
''def gcdRecur(a, b):
'''
a, b: positive integers
returns: a positive integer, the greatest common divisor of a & b.
'''
# Your code here
if b == 0:
return a
else:
return gcdRecur(b, a%b)
#Test Code
gcdRecur(88, 96)
gcdRecur(143, 78)
© 2021 GitHub, Inc.
Answer & Explanation:
The program you added to the question is correct, and it works fine; It only needs to be properly formatted.
So, the only thing I did to this solution is to re-write the program in your question properly.
def gcdRecur(a, b):
if b == 0:
return a
else:
return gcdRecur(b, a%b)
gcdRecur(88, 96)
gcdRecur(143, 78)
ITING THE ANSWER
1. According to Turner and Wilson (2018), Information Literacy consists of
tasks EXCEPT...
A applying previous knowledge.
C. finding appropriate information
B. determining information need.
2. Outlining your problem, developing research questions, selecting keywords a
developing concept charts are activities during...
D. using information ethically
A. communicating information.
B. determining information need.
C. evaluating search results.
D. finding appropriate resources,
3. Asking questions such as what, why, where and how is an effective way to
A. craft your research questions.
B. develop good keywords
C. find good information
D. understand your topic,
4. In asking "what" questions, you intend to find...
A. answers and solutions.
Answer:
Answer my first question
IN C++
A. Create an abstract base class called Currency with two integer attributes, both of which are non-public. The int attributes will represent whole part (or currency note value) and fractional part (or currency coin value) such that 100 fractional parts equals 1 whole part.
B. Create one derived class - Money - with two additional non-public string attributes which will contain the name of the currency note (Dollar) and currency coin (Cent) respectively. DO NOT add these attributes to the base Currency class.
C. In your base Currency class, add public class (C++ students are allowed to use friend methods as long as a corresponding class method is defined as well) methods for the following, where appropriate:
Default Construction (i.e. no parameters passed)
Construction based on parameters for all attributes - create logical objects only, i.e. no negative value objects allowed
Copy Constructor and/or Assignment, as applicable to your programming language of choice
Destructor, as applicable to your programming language of choice
Setters and Getters for all attributes
Adding two objects of the same currency
Subtracting one object from another object of the same currency - the result should be logical, i.e. negative results are not allowed
Comparing two objects of the same currency for equality/inequality
Comparing two objects of the same currency to identify which object is larger or smaller
Print method to print details of a currency object
All of the above should be instance methods and not static.
The add and subtract as specified should manipulate the object on which they are invoked. It is allowed to have overloaded methods that create ane return new objects.
D. In your derived Money class, add new methods or override inherited methods as necessary, taking care that code should not be duplicated or duplication minimized. Think modular and reusable code.
E. Remember -
Do not define methods that take any decimal values as input in either the base or derived classes.
Only the print method(s) in the classes should print anything to console.
Throw String (or equivalent) exceptions from within the classes to ensure that invalid objects cannot be created.
F. In your main:
Declare a primitive array of 5 Currency references (for C++ programmers, array of 5 Currency pointers).
Ask the user for 5 decimal numbers to be input - for each of the inputs you will create one Money object to be stored in the array.
Once the array is filled, perform the following five operations:
Print the contents of the array of objects created in long form, i.e. if the user entered "2.85" for the first value, it should be printed as "2 Dollar 85 Cent".
Add the first Money object to the second and print the resulting value in long form as above.
Subtract the first Money object from the third and print the resulting value in long form as above.
Compare the first Money object to the fourth and print whether both objects are equal or not using long form for object values.
Compare the first Money object to the fifth and print which object value is greater than the other object value in long form.
All operations in the main should be performed on Currency objects demonstrating polymorphism.
Remember to handle exceptions appropriately.
There is no sample output - you are allowed to provide user interactivity as you see fit.
Answer:
I only do Design and Technology
sorry don't understand.
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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Study the following two class interfaces: class Question { public: Question(); void set_text(string new_text); void set_answer(string new_answer); void display() const; private: string text; string answer; }; class ChoiceQuestion : public Question { public: ChoiceQuestion(); void set_text(string new_text); }; Which member function from the Question class is overridden in the ChoiceQuestion class?
Answer:
The question function
Explanation:
The ChoiceQuestion function inherits from the Question class and should have it's functions and attributes as it is now a child of the Question class. It however overides the Question class function where it sets the ChoiceQuestion class function in the first function definition of the ChoiceQuestion class definition. This allows the child class to have it's own functions as well have access to the attributes and functions of the parent class.
Consider a system with seven processes: E, F, G, H, I, J, K and six resources: U, V, W, X, Y, Z. Process E holds U and wants V. Process F holds nothing but wants W. Process G holds nothing but wants V. Process H holds X and wants V and W. Process I holds W and wants Y. Process J holds Z and wants V. Process K holds Y and wants X. Is this system deadlocked?
a. Yes
b. No
Answer:
a. Yes
Explanation:
System is deadlock due to process HIK. Process H holds X and wants V and W. Process I holds W and wants Y. Process K holds Y and wants X. The system will become deadlock due to these three different processes.
Write the correct statements for the above logic and syntax errors in program below.
#include
using namespace std;
void main()
{
int count = 0, count1 = 0, count2 = 0, count3 = 0;
mark = -9;
while (mark != -9)
{
cout << "insert marks of students in your class, enter -9 to stop entering";
cin >> mark;
count++;
if (mark >= 0 && mark <= 60);
count1 = count1 + 1;
else if (mark >= 61 && mark <= 70);
count2 = count2 + 1;
else if (mark >= 71 && mark <= 100);
count3 = count3 + 1;
}
cout <<"Report of MTS3013 course" << endl;
cout <<"Mark" << count << endl << endl;
cout << "0-60" << "\t\t\t\t" << count1 << endl;
cout << "61-70" << "\t\t\t\t" << count2 << endl;
cout << "71-100" << "\t\t\t\t" << count3 << endl<< endl << endl;
cout << "End of program";
}
Select the correct statement(s) regarding PONS. a. only MMF cables can be used, since MMF enables greater data capacities compared to SMF b. PONS systems require active amplifiers, since high frequency signals attenuate quickly over distance c. PONS systems use passive devices between OLT and ONT d. all are correct statements
Answer:
The correct statement regarding PONS is:
c. PONS systems use passive devices between OLT and ONT
Explanation:
PON means Passive Optical Network. Based on fiber-optic telecommunications technology, PON is used to deliver broadband network access to individual end-customers. It enables a single fiber from a service provider to maintain an efficient broadband connection for multiple end-users (homes and small businesses). OLT means Optical Line Terminal, while ONT means Optical Network Terminal. They provide access to the PON.
If one wish to create a loop such that it will continuously add time elapsed between two functions with variable computation time until 1 hour is passed, what type of loop would be best
"Between two functions" not sure of what you mean there but here's a quick way to execute a function for an hour
Answer and Explanation:
var interval=setInterval(function(){
var i=0;
for (i=0; i <=60; i++){
for (i=0; i <70; i++){
console.log(i); }
}}, 60000);
Question: Name the person who originally introduced the idea of patterns as a solution design concept.
Answer:
architect Christopher Alexander is the person who originally introduced the idea of patterns as a solution design concept.
The person who originally introduced the idea of patterns as a solution design concept named as Christopher Alexander who was an architect.
What is architecture?Architecture is referred to as an innovative technique or artwork based on buildings or physical structures that aims at creating cultural values for upcoming generations to understand the importance of history.
The external layout can be made to best support human existence and health by using a collection of hereditary solutions known as the "pattern language." It creates a set of helpful relationships by combining geometry and social behavior patterns.
Christopher Alexander, a British-American engineer and design theorist of Austrian heritage, is renowned for his several works on the design and construction process introduced the idea of patterns as a solution design concept.
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When considering the mobility aspect of cloud-based enterprise systems, it's important to consider that with a cloud-based system, employee can access information from _____.
Answer:
anywhere in the world
Explanation:
Employee can access information from anywhere in the world. That is the main upside of using cloud-based enterprise system. They run completely remote and are accessible from anywhere as long as you have an internet connection and authorized access to the system. This increased accesibility is crucial for companies that have employees that move from place to place solving problems and solves many of the problems with on-site systems.
describe what happens at every step of our network model, when a node on one network establishes a TCP connection with a node on another network. You can assume that the two networks are both connected to the same router.
Answer:
Each node on the network has an addres which is called the ip address of which data is sent as IP packets. when the client sends its TCP connection request, the network layer puts the request in a number of packets and transmits each of them to the server.
The Marietta Country Club has asked you to write a program to gather, then display the results of the golf tournament played at the end of March. The Club president Mr. Martin has asked you to write two programs.
The first program will input each player's first name, last name, handicap and golf score and then save these records in a file named golf.txt (each record will have a field for the first name, last name, handicap and golf score).
The second program will read the records from the golf.txt file and display them with appropriate headings above the data being displayed.
If the score is = Par, then display 'Made Par'
If the score is < Par, then display 'Under Par'
If the score is > Par, then display 'Over Par'
There are 16 players in the tournament. Par for the course is 80. The data is as follows:
Andrew Marks 11.2 72
Betty Franks 12.8 89
Connie William 14.6 92
Donny Ventura 9.9 78
Ernie Turner 10.1 81
Fred Smythe 8.1 75
Greg Tucker 7.2 72
Henry Zebulon 8.3 83
Ian Fleming 4.2 72
Jan Holden 7.7 84
Kit Possum 7.9 79
Landy Bern 10.3 93
Mona Docker 11.3 98
Kevin Niles 7.1 80
Pam Stiles 10.9 87
Russ Hunt 5.6 73
Answer:
Explanation:
The following program is written in Python. It creates two functions, one for writting the players and their scores to the file, and another function for reading the file and outputting whether or not they made Par. The functions can be called as many times that you want and the writeFile function allows for 16 inputs to be made when called. A test case has been provided with all of the players mentioned in the question. The output can be seen in the attached image below.
def writeFile():
file = open('output.txt', 'w')
for x in range(16):
firstName = input("Enter First Name:")
lastName = input("Enter Last Name:")
handicap = input("Handicap:")
score = input("Score:")
file.write(str(firstName) + " " + str(lastName) + " " + str(handicap) + " " + str(score) + "\n")
file.close()
def readFile():
file = open('output.txt', 'r')
for line in file:
lineArray = line.split(" ")
if int(lineArray[-1]) < 80:
print(str(lineArray[0]) + " " + str(lineArray[1]) + " Under Par" )
elif int(lineArray[-1]) == 80:
print(str(lineArray[0]) + " " + str(lineArray[1]) + " Made Par")
else:
print(str(lineArray[0]) + " " + str(lineArray[1]) + " Over Par")
file.close()
writeFile()
readFile()
1) Declare an ArrayList named numberList that stores objects of Integer type. Write a loop to assign first 11 elements values: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024. Do not use Math.pow method. Assign first element value 1. Determine each next element from the previous one in the number List. Print number List by using for-each loop.
Answer:
Explanation:
The following is written in Java and uses a for loop to add 10 elements to the ArrayList since the first element is manually added as 1. Then it calculates each element by multiplying the previous element (saved in count) by 2. The program works perfectly and without bugs. A test output can be seen in the attached image below.
import java.util.ArrayList;
class Brainly {
public static void main(String[] args) {
ArrayList<Integer> numberList = new ArrayList<>();
numberList.add(0, 1);
int count = 1;
for (int i = 1; i < 11; i++) {
numberList.add(i, (count * 2));
count = count * 2;
}
for (Integer i : numberList) {
System.out.println(i);
}
}
}
Write a program using a dictionary that reads in a single positive digit number [0 - 9] from the user at the keyboard. Your program will then be able to look up the digit key in the dictionary and print the digit value spelled out. If the user types in a number that is either more than one digit, negative, or a non int value, re-prompt the user for valid input. First, before demonstrating your test cases, print out a display copy of the key:value pairs in your dictionary in sorted order. Deliverable: yournameLab4.py Your source code solution and a copy of the run pasted into your source submission file. Be sure to comment out your run so that your .py file will still run in the grader test bed. Validate user input is a single positive digit [0 - 9].
Answer:
The program in Python is as follows:
dict = {0:"Zero",1:"One",2:"Two",3:"Three",4:"Four",5:"Five",6:"Six",7:"Seven",8:"Eight",9:"Nine"}
num = input("Number: ")
while(num.isdigit() == False or int(num)<0 or int(num)>9):
num = input("Number: ")
print(dict)
print(dict[int(num)])
Explanation:
#This initializes the dictionary
dict = {0:"Zero",1:"One",2:"Two",3:"Three",4:"Four",5:"Five",6:"Six",7:"Seven",8:"Eight",9:"Nine"}
#This gets input from the user
num = input("Number: ")
#This loop is repeated until the user enters a valid input
while(num.isdigit() == False or int(num)<0 or int(num)>9):
num = input("Number: ")
#This prints the dictionary
print(dict)
#This prints the value of the key
print(dict[int(num)])
See attachment for sample run
1. What does the word “processing” in data pro- cessing mean?
2. Give three examples in which raw data also serves as useful information.
3. Give three business examples (not mentioned in the text) of data that must be processed to provide useful information.
4. Give three examples of subsystems not operat- ing in the context of IT. Why are these consid- ered subsystems and not systems?
5. How do TPSs and DSSs differ?
6. What is a problem? Give an example of a busi- ness problem and discuss how a computer- based information system could solve it.
7. What is synergy? How is synergy accomplished when a person uses a computer? Explain the connection between synergy and increased productivity.
8. “An information system consists of hardware and software.” Why is this statement inadequate?
9. In which situations does one need to make a decision? Give three examples not mentioned in the chapter.
10. How can a DSS help make decisions?
11. Note the word “support” in decision support systems. Why are these applications not called decision-making systems?
12. Who is considered a knowledge worker? Will you have a career as a knowledge worker? Explain.
13. What is the most prevalent type of information system? Why is this type of IS so ubiquitous?
14. TPSs are usually used at the boundaries of the organization. What are boundaries in this context? Give three examples of boundaries.
15. Among IT professionals, the greatest demand is for network administrators and analysts. Why?
Answer:
Word processing is the process of creating and editing documents on a computer. It allows a user to create documents that mimic the format and style of a typical typewriter. It requires a computer and word processing software. A printer may also be used to create a physical copy of the document.
Explanation:
I have a Dell laptop and last night it said that it needed to repair it self and asked me to restart it. So I did but every time I turn it on it shuts itself down. I had a problem exactly like this before with my old computer, was not a Dell though, and I ended up having to have it recycled. This computer I have now is pretty new and I really don't want to have to buy a new computer. What should I do to fix this problem? Please help, I'm a college student almost ready to graduate and all of my classes are online. I'm starting to panic. Thanks for helping me figure this situation out.
The same thing happened with my HP laptop but my dad refresh the laptop before restating it worked
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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what is example of application of machine learning that can be imposed in eduction. (except brainly.)
Answer:
Machine Learning Examples
Recommendation Engines (Netflix)
Sorting, tagging and categorizing photos (Yelp)
Self-Driving Cars (Waymo)
Education (Duolingo)
Customer Lifetime Value (Asos)
Patient Sickness Predictions (KenSci)
Determining Credit Worthiness (Deserve)
Targeted Emails (Optimail)
hãy giúp tôi giảiiii
Answer:
fiikslid wugx uesbuluss wuz euzsbwzube
In cell K8, create a formula using the SUM function that calculates the total of the range D17:D20 and subtracts it from the value in cell J8.
Answer:
so like what are you asking for so i can help u just tell me what u need and i will help u :)
Explanation:
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:
cloud computing: brainly.com/question/16026308
Prime numbers can be generated by an algorithm known as the Sieve of Eratosthenes. The algorithm for this procedure is presented here. Write a program called primes.js that implements this algorithm. Have the program find and display all the prime numbers up to n = 150
Answer:
Explanation:
The following code is written in Javascript and is a function called primes that takes in a single parameter as an int variable named n. An array is created and looped through checking which one is prime. If So it, changes the value to true, otherwise it changes it to false. Then it creates another array that loops through the boolArray and grabs the actual numberical value of all the prime numbers. A test case for n=150 is created and the output can be seen in the image below highlighted in red.
function primes(n) {
//Boolean Array to check which numbers from 1 to n are prime
const boolArr = new Array(n + 1);
boolArr.fill(true);
boolArr[0] = boolArr[1] = false;
for (let i = 2; i <= Math.sqrt(n); i++) {
for (let j = 2; i * j <= n; j++) {
boolArr[i * j] = false;
}
}
//New Array for Only the Prime Numbers
const primeNums = new Array();
for (let x = 0; x <= boolArr.length; x++) {
if (boolArr[x] === true) {
primeNums.push(x);
}
}
return primeNums;
}
alert(primes(150));
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.
You work as the IT Administrator for a small corporate network you need to configure configure the laptop computer in the Lobby to use the corporate proxy server. The proxy server is used to control access to the internet. In this lab, your task is to configure the proxy server settings as follows: Port: 9000
Answer:
okay if I am it administration I will port 10000
To configure the computer in the lobby to use the corporate proxy server, you will need to follow these steps:
Settings > Networks&Internet > Proxy > Manual Proxy Setup > Address & proxy > save
What is Proxy Server?A proxy server is a device or router that acts as a connection point between users and the internet.
Proxy Server settings would be the same for both Wifi and Ethernet connections, explaining about the configuration in Windows Operating System.
Open the internet browser on the laptop and go to the settings or preferences page. The exact location of the proxy settings will vary depending on the browser you are using.
In the settings or preferences page, look for the "Proxy" or "Network" section.
In the proxy settings, select the option to use a proxy server.
Enter the address of the corporate proxy server in the "Server" or "Address" field.
Enter the port number "9000" in the "Port" field.
Save the changes and close the settings or preferences page.
Test the proxy server configuration by attempting to access a website. If the configuration is correct, the laptop should be able to access the internet through the proxy server.
Settings > Networks&Internet > Proxy > Manual Proxy Setup > Address & proxy > save
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2.13 LAB: Branches: Leap Year
A year in the modern Gregorian Calendar consists of 365 days. In reality the earth takes longer to rotate around the sun. To account for the
difference in time every 4 years a leap year takes place. A leap year is when a year has 366 days: An extra day, February 29th. The
requirements for a given year to be a leap year are:
1) The year must be divisible by 4
2) If the year is a century year (1700 1800. etc.), the year must be evenly divisible by 400
Some example leap years are 600712 and 2016
Wirte a program that takes n a year and determines whether that year is a leap year.
Exif the inputs
1712
Answer:
The program in Python is as follows:
year = int(input("Enter a year: "))
print(year,end=" ")
if year % 4 == 0:
if year % 100 == 0:
if year % 400 == 0: print("is a leap year")
else: print("is not a leap year")
else: print("is a leap year")
else: print("is not a leap year")
Explanation:
This gets input for year
year = int(input("Enter a year: "))
This prints year, followed by a blank
print(year,end=" ")
If year is divisible by 4
if year % 4 == 0:
If yes, check if year is divisible by 100
if year % 100 == 0:
If yes, check if year is divisible by 400; print leap year if true
if year % 400 == 0: print("is a leap year")
print not leap year if year is not divisible by 400
else: print("is not a leap year")
print leap year if year is not divisible by 100
else: print("is a leap year")
print leap year if year is not divisible by 4
else: print("is not a leap year")
Answer:
def is_leap_year(user_year):
if(user_year % 400 == 0):
return True
elif user_year % 100 == 0:
return False
elif user_year%4 == 0:
return True
else:
return False
if __name__ == '__main__':
user_year = int(input())
if is_leap_year(user_year):
print(user_year, "is a leap year.")
else:
print(user_year, "is not a leap year.")
Explanation:
Select the correct answer.
What testing approach does a development team use when testing the developed code rather than just the functionality of the code?
A.
white box testing
B.
black box testing
C.
acceptance testing
D.
usability testing
Answer:
D. usability testing
Explanation:
A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer how to perform a specific task and to solve a particular problem.
A software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications. There are seven (7) main stages in the creation of a software and these are;
1. Planning.
2. Analysis and requirements.
3. Software design and prototyping.
4. Development (coding).
5. Integration and testing
6. Deployment.
7. Operations and maintenance.
Usability testing is a testing technique used by a software development team to test a developed code rather than just the functionality of the code.
The main purpose of usability (user experience) testing is to determine how easy, user-friendly or difficult it is for end users (real people) to use a software application or program.
Identify some advantages of using Excel over lists, paper files, or simple word documents? Describe some disadvantages of using Excel over lists, paper files, or simple word documents? Summarize one thing in you home life that could be improved or more easily managed using Excel?
Excel
Excel is a software program that contains spreadsheet. Spreadsheet is an electric document that works numbers and display results in graphs. There are vertical columns and horizontal rows.
they are several advantages of excel which is;
Excel is very efficient to use, especially when you have to calculate your data, it's not hard to calculate the computer itself calculates it for you.they are also disadvantages of excel which is;
some users might get a little bit problem when you send Microsoft Excel, here is one sometimes the spreadsheet are difficult to share internally.What are some of the advantages and disadvantages of connection-oriented WAN/Man as opposed to connection-less?
Answer and Explanation:
Connection oriented WAN/MAN as opposed to connection less network is a type of wide area network that requires communicating entities in the network to establish a dedicated connection for their communication before they start communicating. This type of network will use these established network layers only till they release it, typical of telephone networks.
Advantages include:
Connection is reliable and long.
Eliminates duplicate data issues.
Disadvantages include:
Resource allocation while establishing dedicated connection slows down speed and may not fully utilize network resources.
There are no plan B's for network congestion issues, albeit occurring rarely with this type of network.
Write a program that asks a user to enter a date in month day year format (for example 10 12 2016) and displays the day of the week for that date, in this case, Wednesday.
Answer and Explanation:
Using javascript:
function dayof_theweek(){
var TodayDate = window. prompt("enter today's date in the format 'year, month, day' ");
var Datenow=new date(TodayDate);
var Dayofweek=Datenow.getday();
var Days=["monday","Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"];
if(Dayofweek==indexOf(Days[Dayofweek]))
{
document.createTextnode(Days[Dayofweek]);
}
}
The program above uses a date object which uses the method getday to get the day of the week(get day returns an integer from 0 to 6).we then use a comparison operator == to test the condition that returned value Dayoftheweek is same with the index of the array Days and then print to a html document. The program may need improvements such as the fact that errors may arise when proper input isn't given, and therefore must be handled.
