Answer:
#include <iostream>
#include <string>
#include <regex>
using namespace std;
int main()
{
cout << "Enter a 5-digit number: ";
string number;
cin >> number;
bool valid = regex_search(number, regex("^\\d{4}[02468]$"));
if (valid) {
valid = stoi(number.substr(0, 1)) + stoi(number.substr(1, 1))
< stoi(number.substr(3, 1)) + stoi(number.substr(4, 1));
}
cout << number << (valid ? " is valid" : " is invalid");
}
Explanation:
Regular expressions can do all of your checking except for the sum of digits check. The checks are i.m.o. easiest if you don't treat the input as a number, but as a string with digits in it.
The regex means:
^ start of string
\d{4} exactly 4 digits
[02468] one of 0, 2, 4, 6 or 8 (this is what makes it even)
$ end of string
Consider a file system using the indexed allocation. The block size is 512 bytes and the pointer to a block takes 2 bytes. The largest file size that a one level indexed allocation method could handle is ___________ KB. Recall that 1KB is equal to 210 bytes. Answer -1 if there is no limit based on the provided information.
Answer:
128 KB
Explanation:
Given data :
The block size = 512 bytes
Block pointer size = 2 bytes
In an indexed allocation, a special block named Index Block contains all the pointers to the blocks that the file had occupied.
Therefore, the maximum number of block pointer in 1 block :
[tex]$=\frac{\text{block size}}{\text{pointer size}}$[/tex]
[tex]$=\frac{512}{2}$[/tex]
= 256
Thus, a block can hold maximum 256 pointers.
It is given the level of indexing is one. So,
Maximum size of the file = maximum number of block pointers in 1 file x block size
= 256 x 512
[tex]$=2^8 \times 2^9$[/tex]
[tex]$=2^{8+9}$[/tex]
[tex]$=2^{17}$[/tex]
[tex]$=2^7 \times 2^{10}$[/tex]
[tex]$=128 \times 2^{10}$[/tex]
= 128 KB (∵ 1 KB = [tex]2^{10} \ B[/tex] )
Therefore, the largest file that 1 level if indexed allocation method can handle is 128 KB.
4. All of the following statements are true EXCEPT one. Which
statement is NOT true?
Select the best option.
Communication occurs between senders and receivers within a context by messages sent
through visual and auditory channels.
Communication includes both the verbal and nonverbal messages sent and received.
The goal of effective communication is mutual understanding.
You can improve your communication by improving your understanding of yourself, others,
and the context of the communication.
When you are listening to another person speak, you can avoid sending any messages by not
speaking and not making eye contact.
Answer:
D
Explanation:
Communication are happen when 2 people are response each other
It is not true that when you are listening to another person speak, you can avoid sending any messages by not speaking and not making eye contact. The correct option is 4.
What is communication?The process of communicating information, concepts, ideas, or sentiments between two or more people through a variety of means and channels, including verbal and nonverbal communication, is referred to as communication.
It is a myth that you may avoid transmitting any messages when you are listening to someone else speak by remaining silent and avoiding eye contact.
Your body language and nonverbal communication, such as your facial expressions and eye contact, can still convey information to the speaker even if you are not replying verbally or establishing eye contact.
Hence, even if a message is unintended or nonverbal, all types of communication entail sending and receiving messages.
Thus, the correct option is 4.
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Your question seems incomplete, the probable complete question is:
All of the following statements are true EXCEPT one. Which
statement is NOT true?
Select the best option.
Communication occurs between senders and receivers within a context by messages sent through visual and auditory channels.Communication includes both the verbal and nonverbal messages sent and received. The goal of effective communication is mutual understanding.You can improve your communication by improving your understanding of yourself, others, and the context of the communication.When you are listening to another person speak, you can avoid sending any messages by not speaking and not making eye contact. The following method is intended to return true if and only if the parameter val is a multiple of 4 but is not a multiple of 100 unless it is also a multiple of 400. The method does not always work correctly public boolean isLeapYear(int val) if ((val 4) == 0) return true; else return (val & 400) == 0; Which of the following method calls will return an incorrect response?
A .isLeapYear (1900)
B. isLeapYear (1984)
C. isLeapYear (2000)
D. isLeapYear (2001)
E. isLeapYear (2010)
Answer:
.isLeapYear (1900) will return an incorrect response
Explanation:
Given
The above method
Required
Which method call will give an incorrect response
(a) will return an incorrect response because 1900 is not a leap year.
When a year is divisible by 4, there are further checks to do before such year can be confirmed to be a leap year or not.
Since the method only checks for divisibility of 4, then it will return an incorrect response for years (e.g. 1900) that will pass the first check but will eventually fail further checks.
Hence, (a) answers the question;
what is a microscope
Answer:
an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times
Answer:
A microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eyes.
what are the different steps while solving a problem using computer? explain
Explanation:
The following six steps must be followed to solve a problem using computer.
Problem Analysis.
Program Design - Algorithm, Flowchart and Pseudocode.
Coding.
Compilation and Execution.
Debugging and Testing.
Program Documentation.
A reflective cross-site scripting attack (like the one in this lab) is a __________ attack in which all input shows output on the user’s/attacker’s screen and does not modify data stored on the server.
Answer:
" Non-persistent" is the right response.
Explanation:
A cross-site category of screenplay whereby harmful material would have to include a transaction to have been transmitted to that same web application or user's device is a Non-persistent attack.Developers can upload profiles with publicly available information via social media platforms or virtual communication or interaction.When computer boots which I pont program starts first? O Operating System O Metaphor System O Basic System O Computer System
When performing the ipconfig command, what does the following output line depict if found in the tunnel adapter settings?
IPv6 Address: 2001:db8:0:10:0:efe:192.168.0.4
a. IPv6 is disabled.
b. The addresses will use the same subnet mask.
c. The network is not setup to use both IPv4 and IPv6.
d. IPv4 Address 192.168.0.4 is associated with the global IPv6 address 2001:db8:0:10:0:efe
Answer:
d. IPv4 Address 192.168.0.4 is associated with the globe IPv6 address 2001:db8:0:10:0:efe
Explanation:
The adapter setting will be associated with the global IP address. When Ipconfig command is operate the IP address finds the relevant domain and then address will use a different subnet. The network will use both IPv4 and IPv6 subnets in order to execute the command.
In the tunnel adapter settings, when performing the ipconfig command, the given output line depicts: D. IPv4 Address 192.168.0.4 is associated with the global IPv6 address 2001:db8:0:10:0:efe.
What is a tunnel adapter?A tunnel adapter can be defined as a virtual interface which is designed and developed to encapsulate packets as a form of tunnel or virtual private network (VPN) protocol while sending them over another network interface.
In Computer networking, an output line of "IPv6 Address: 2001:db8:0:10:0:efe:192.168.0.4" in the tunnel adapter settings simply means that an IPv4 Address 192.168.0.4 is associated with the global IPv6 address 2001:db8:0:10:0:efe.
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five technology tools and their uses
Answer:
Electronic boards
Videoconferencing ability
Search engines
Cloud services
Computing softwares
Explanation:
Technology tools are used to simplify task bring ease, comfort as well as better satisfaction :
The use of electronic boards for teaching is an essential tool for students and educators alike as it provides great features aloowibg teachers to write and make drawings without hassle. This clear visual display goes a long way to aide student's understanding.
Videoconferencing breaks the barrier that distance and having to travel bring swhen it comes to learning. With this tools, students and educators can now organize classes without having to be physically present un the same class room.
Search engines : the means of finding solutions and hints to challenging and questions is key. With search engines, thousands of resources can now be assessed to help solve problems.
Cloud services : this provud s a store for keeping essential information for a very long time. Most interestingly. These documents and files can be assessed anywhere, at anytime using the computer.
Computing softwares : it often seems tune consuming and inefficient solving certain numerical problems, technology now p ovide software to handles this calculation and provides solutions in no time using embedded dded to codes which only require inputs.
01 Describe all the possible component of a chart
Answer:
Explanation:
1) Chart area: This is the area where the chart is inserted. 2) Data series: This comprises of the various series which are present in a chart i.e., the row and column of numbers present. 3) Axes: There are two axes present in a chart. ... 4)Plot area: The main area of the chart is the plot area
Which XXX declares a student's name. public class Student { XXX private double myGPA; private int myID; public int getID() { return myID; } } Group of answer choices String myName; public String myName; private myName; private String myName;
Which XXX declares a student's name.
public class Student {
XXX
private double myGPA;
private int myID;
public int getID() {
return myID;
}
}
Group of answer choices
a. String myName;
b. public String myName;
c. private myName;
d. private String myName;
Answer:private String myName;
Explanation:To declare a student's name, the following should be noted.
i. The name of the student is of type String
ii. Since all of the instance variables (myGPA and myID) have a private access modifier, then myName (which is the variable name used to declare the student's name) should be no exception. In other words, the student's name should also have a private access.
Therefore, XXX which declares a student's name should be written as
private String myName;
Option (a) would have been a correct option if it had the private keyword
Option (b) is not the correct option because it has a public access rather than a private access.
Option (c) is not a valid syntax since, although it has a private access, the data type of the variable myName is not specified.
Option (d) is the correct option.
Select all that apply to Enums: Group of answer choices While mainly a readability feature, we can technically use Enum to do things like spoof a boolean type in C allowing us some level of functionality Enums let us build a series of any kind of constant Enums allow us to print names for integers instead of numbers Enums are great for representing states and other common constants like colors Enums let us specifically value each constant we create Flag question: Question 59 Question 59
Answer:
-- While mainly a readability feature, we can technically use Enum to do things like spoof a Boolean type in C allowing us some level of functionality.
-- Enums are great for representing states and other common constants like colors.
-- Enums let us specifically value each constant we create.
Explanation:
Enums is a part of a programming language which helps a developer or a programmer to defined a set of the named constants. Using the enums will help in making it easier to document the intent and also to create set of distinct cases.
Option 1 is applicable as in the Boolean there are only TRUE and FALSE values. By using enum one can add more state like that of being difficult or normal or easy.
Option 4 is applicable because enums are used to represent various states and also other constants.
Option 5 is also applicable they allow the developer to create each value constant.
(CO 4 and 5) Create a program that will read in a list of test scores from the user and add them to a list. Ask the user in between each score if they want to continue (y/n). Display all of the scores entered and the total score at the end. Using the code below, put the code in the proper order Sample output: Welcome to the Test Score Program Add score: 88.45 Do you want to continue
Answer and Explanation:
Using Javascript:
function AddScores(){
Window.alert("Welcome to the Test Score Program");
var ScoreList= new Array();
ScoreList.push(Prompt("Add Score"));
var WhatNext= Confirm("do you want to continue?");
If(WhatNext===true) {
do{
ScoreList.push(Prompt("Add Score"));
}
While(
Confirm("do you want to continue?")===true;);
}
Alert(ScoreList);
Alert(ScoreList.reduce(function(a,b){return a +b};,0);)
}
AddScores();
From the above code in javascript programming language, we have created a list ScoreList and added elements to it using push method of the array object and a do...while loop that checks the condition and then adds the user's input to the array. We then alerted the array to the screen and then summed up the array elements and also alerted to the screen.
LAB: Warm up: Drawing a right triangle This program will output a right triangle based on user specified height triangle_height and symbol triangle_char. (1) The given program outputs a fixed-height triangle using a character. Modify the given program to output a right triangle that instead uses the user-specified triangle_char character. (1 pt) (2) Modify the program to use a loop to output a right triangle of height triangle_height. The first line will have one user-specified character, such as % or* Each subsequent line will have one additional user-specified character until the number in the triangle's base reaches triangle_height. Output a space after each user-specified character, including a line's last user-specified character. (2 pts) Example output for triangle_char = % and triangle_height = 5: Enter a character: Enter triangle height: 5 273334.1408726 LAB ACTIVITY 16.6.1: LAB: Warm up: Drawing a right triangle 0/3 main.py Load default template... 1 triangle_char - input('Enter a character:\n') 2 triangle_height = int(input('Enter triangle height:\n')) 3 print('') 4 5 print ('*') 6 print ("**') 7 print ("***') 8
Answer:
The modified program in Python is as follows:
triangle_char = input('Enter a character:\n')
triangle_height = int(input('Enter triangle height:\n'))
for i in range(triangle_height):
print(triangle_char * (i+1))
Explanation:
This gets the character from the user
triangle_char = input('Enter a character:\n')
This gets the height of the triangle from the user
triangle_height = int(input('Enter triangle height:\n'))
This iterates through the height
for i in range(triangle_height):
This prints extra characters up to the height of the triangle
print(triangle_char * (i+1))
Here's the modified program that incorporates the requested changes:
python
Copy code
triangle_char = input('Enter a character:\n')
triangle_height = int(input('Enter triangle height:\n'))
print('')
for i in range(1, triangle_height + 1):
line = triangle_char * i + ' ' * (triangle_height - i)
print(line)
This program uses a loop to iterate from 1 to triangle_height. In each iteration, it creates a line by concatenating triangle_char repeated i times with spaces (' ') repeated (triangle_height - i) times. The resulting line is then printed.
For example, if the user enters % as the character and 5 as the height, the output will be to make sure to maintain the indentation properly in your code for it to work correctly.
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Physical safeguards, also called logical safeguards, and are applied in the hardware and software of information systems.
a. True
b. False
Answer:
False
Explanation:
They are not applied in the hardware and software of information systems.
2. 5s is a Chinese principle adapted for use in the workplace.
True or False
Answer:
A. true
Explanation:
because 5s is the.................
In C complete the following:
void printValues ( unsigned char *ptr, int count) // count is no of cells
{
print all values pointed by ptr. //complete this part
}
int main ( )
{
unsigned char data[ ] = { 9, 8, 7, 5, 3, 2, 1} ;
call the printValues function passing the array data //complete this part
}
Answer:
#include <stdio.h>
void printValues ( unsigned char *ptr, int count) // count is no of cells
{
for(int i=0; i<count; i++) {
printf("%d ", ptr[i]);
}
}
int main ( )
{
unsigned char data[ ] = { 9, 8, 7, 5, 3, 2, 1} ;
printValues( data, sizeof(data)/sizeof(data[0]) );
}
Explanation:
Remember that the sizeof() mechanism fails if a pointer to the data is passed to a function. That's why the count variable is needed in the first place.
Does anyone know what type of Chromebook this is?
Answer: Its............ A Chromebook type of Chromebook...??
Explanation:
Ion know I aint a geek, geezer -_- (Thats a lie)
Which of the following statement is true? Single choice. (2 Points) Views are virtual tables that are compiled at run time All of the Mentioned Views could be looked as an additional layer on the table which enables us to protect intricate or sensitive data based upon our needs Creating views can improve query response time
Answer:
All of the mentioned views could be looked as an additional layer in the table which enables us to protect intricate or sensitive data based upon our needs.
Explanation:
View is a virtual table which executed a pre compiled query. It is a table in which selective portion of the data can be seen from one or more tables. Queries are not allowed in indexed views and adding column is not possible. Views can be looked as an additional layer in the virtual table which protects sensitive data.
