Answer:
a. computers wait until the circuit is free before they send data.
Explanation:
In Computer science, controlled access (X-ON/X-OFF) is typically the opposite of contention.
Controlled access is mainly used by computer networks that are being managed by a host mainframe computer system. X-ON is ready to receive while X-OFF isn't ready to receive.
With contention, computers wait until the circuit is free before they send data. It generally prevents collision between computer systems.
. Which of these perform real-world activities such as eating, sleeping, walking, and running in virtual worlds?
Answer:
all
Explanation:
Answer:
avatars
Explanation: I just took the test
Libby’s keyboard is not working properly, but she wants to select options and commands from the screen itself. Which peripheral device should she use?
A.
voice recognition
B.
microphone
C.
mouse
D.
compact disk
Which lighting technique can often heighten a dramatic story?
No lighting.
Front lighting.
Natural lighting.
Side or back lighting.
Answer:
side or back lighting
Explanation:
big brain
what is memory? explain types of memory?
Answer:
Memory is the taking personal record of computer of past experience. The types of memory are 1)Read Only Memory 2)Random Access memory
Question 2 (10 points)
enables you to view data from a table based on a specific
A-
criterion
Query
Report
Form
All of the above
Answer: Query
Explanation:
A query simply enables one to view data from a table based on a specific criterion.
We should note that a query is simply referred to as a precise request that is used when retrieving information with the information systems.
When requesting for the data results, and also for the request of some certain action on data, the query is used. If the user wants to perform calculations, answer a particular, make adjustments to w table etc, the query is used.
Assume the data link protocol used by NDAS has the following associated characteristics:
An 8-bit ASCII code is used. Each frame has a size (length) of 11936 bits. A half-duplex circuit with a speed of 1 million bits per second is used for transmission. There is a 30-millisecond turnaround time on the half-duplex circuit. Each frame contains 20 overhead (non-user-data) bytes. Assume that the probability of a frame requiring retransmission due to error in transmission is 1 percent. A millisecond is one-thousandth of a second. Also, 8 bits = 1 character = 1byte
Fill in the blanks
K= _________ bits per bytes
M=_________ bytes
C= _________ overhead bytes
Answer:
The transmission speed = 0.278 MB/s
Explanation:
K = 8 bits
M = 11936/8 bits = 1492 bits
transmission rate R = 1000000/ 8 = 125000 bps
overhead bytes C = 20
probability = 0.01
time T = 30 ms = 30 x10^-3 s
The data transmission speed formula = K(M-C)(1-p) / (M/R) + T
= 8( 1492 - 20)(0.99)/ (1492/125000) + 30 x10^-3
= 0.278 MB/s
The child’s game, War, consists of two players each having a deck of cards. For each play, each person turns over the top card in his or her deck. The higher card wins that round of play and the winner takes both cards. The game continues until one person has all the cards and the other has none. Create a program that simulates a modified game of War.
The computer will play both hands, as PlayerOne and PlayerTwo, and, for each round will generate two random numbers and compare them.
If the first number is higher, PlayerOne’s score is increased by 1 and if the second number is higher, PlayerTwo’s score is increased by 1.
If there is a tie, no score is incremented.
When one "player" reaches a score of 10, that player should be deemed the winner and the game ends.
The range of numbers should be 1-13 to simulate the values of cards in the deck.
Answer:
In Python
import random
p1 = 0; p2 =0
while(p1 <10 and p2<10):
p1play = random.randint(1,14)
p2play = random.randint(1,14)
print("Player 1 roll: "+str(p1play))
print("Player 2 roll: "+str(p2play))
if p1play > p2play:
p1+=1
print("Player 1 wins this round")
elif p1play < p2play:
p2+=1
print("Player 2 wins this round")
print()
print("Player 1: "+str(p1))
print("Player 2: "+str(p2))
if p1 > p2: print("Player 1 wins")
else: print("Player 2 wins")
Explanation:
See attachment for complete program where comments were used to explain some lines
80. A .......... is used to read or write data.
A. CD B. VDU C. ROM D. RAM
Answer:
Depending on exactly what they mean by read and write, both A and D are valid. In fact, if you read that as "read or write" as being a logical OR and not the logical AND that the sentence probably intends, then all four answers could be correct.
What they probably mean to say though is "..... is used as a read/write storage medium", in which case A is the correct answer.
A. Data can be written to or read from a CD. This is probably the "right" answer
B. A human can "read" data from a Visual Display Unit, and the computer "write" it. That of course is not the intended meaning though.
C. Data can be read from Read Only Memory, but not written to.
D. Data can be both read and written to Random Access Memory, but not retained after the computer is powered off.
if the bleeding period of a woman is indicated by days of 1-5, then the days when the woman is highly fertile is between______,show how it is ?
Drink the blood because it taste like candy and juice.
solve x + 4 / x - 3 = 4 , step by step explanation will mark as brainliest
Answer:
I didn't get the exact answer..but hope this help
When gathering the information needed to create a database, the attributes the database must contain to store all the information an organization needs for its activities are _______ requirements.
Answer:
Access and security requirements
6
Where is the Text Highlight Color button located?
a. In the Font group on the Home tab
b. In the Text group on the Edit tab
C. In the Paragraph group on the Home tab
d. In the Font group on the Edit tab
Answer C in the paragraph group on the home tab
Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both doubles) as input, and output the gas cost for 20 miles, 75 miles, and 500 miles. Output each floating-point value with two digits after the decimal point, which can be achieved by executing cout << fixed << setprecision(2); once before all other cout statements.
Answer:
Explanation:
The following is written in C++ and asks the user for inputs in both miles/gallon and dollars/gallon and then calculates the gas cost for the requested mileages using the input values
#include <iostream>
#include <iomanip>
using namespace std;
int main () {
// distance in miles
float distance1 = 20.0, distance2 = 75.0, distance3 = 500.0;
float miles_gallon, dollars_gallon;
cout << "Enter cars miles/gallon: "; cin >> miles_gallon;
cout << "Enter cars dollars/gallon: "; cin >> dollars_gallon;
cout << "the gas cost for " << distance1 << " miles is " << fixed << setprecision(2) << (float) dollars_gallon * distance1 / miles_gallon << "$\n";
cout << "the gas cost for " << distance2 << " miles is " << fixed << setprecision(2) << (float) dollars_gallon * distance2 / miles_gallon << "$\n";
cout << "the gas cost for " << distance3 << " miles is " << fixed << setprecision(2) << (float) dollars_gallon * distance3 / miles_gallon << "$\n";
return 0;
}
The director of security at an organization has begun reviewing vulnerability scanner results and notices a wide range of vulnerabilities scattered across the company. Most systems appear to have OS patches applied on a consistent basis_ but there is a large variety of best practices that do not appear to be in place. Which of the following would be BEST to ensure all systems are adhering to common security standards?
A. Configuration compliance
B. Patch management
C. Exploitation framework
D. Network vulnerability database
Answer:
D. Network vulnerability database
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
In this scenario, The director of security at an organization has begun reviewing vulnerability scanner results and notices a wide range of vulnerabilities scattered across the company. Most systems appear to have OS patches applied on a consistent basis but there is a large variety of best practices that do not appear to be in place. Thus, to ensure all systems are adhering to common security standards a Network vulnerability database, which typically comprises of security-related software errors, names of software, misconfigurations, impact metrics, and security checklist references should be used.
Basically, the Network vulnerability database collects, maintain and share information about various security-related vulnerabilities on computer systems and software programs.
U $ er Ideas for R 0 B 1 0 X?
Answer:
umm huh
Explanation:
english please
Answer:
i play ro blox add me wwekane9365
Explanation:
how to learn python ?
Answer:
See below.
Explanation:
To learn python programming language, first, you have to know the basic. Surely, you may recognize this function namely print()
print(“Hello, World!”) — output as Hello, World!
First, start with familiarizing yourself with basic function such as print. Then step up with arithmetic and declare or assign variable then list.
Here are example of functions:
1.) print(argument) — If argument is a string (word-typed), make sure to use “” or ‘’ or else it’ll output an error and say the argument is not defined.
print(“Hi, Brainly”) will output Hi, Brainly
print(2+3) will output 5
Numerical data or numbers do not necessarily require “ “ or ‘ ‘
print(3+3) will output 6 but print(“3+3”) will output 3+3 which is now a string.
2.) type(argument) - this tells you which data/argument it is. There are
< class ‘str’ > which is string, meaning it contains “ “ or ‘ ‘< class ‘int’ > which is integer< class ‘float’ > which is decimal (20.0 is also considered as float, basically anything that contains decimal is all float type)< class ‘list’ > which is a list. List is something that contains elements within square brackets [ ]etc.
Make sure you also do print(type(argument)) as well so it will print out the output.
3.) Arithmetic
+ is additionEx. print(1+3) will output 4
2. - is subtraction
Ex. print(5-4) will output 1
3. * is multiply
Ex. print(4*5) will output 20
4. ** is exponent
Ex. print(5**2) will output 25
5. / is division
Ex. print(6/3) will output 2 — sometimes will output the float type 2.0
6. % is modulo or remainder
Ex. print(7%2) will output 1
4.) Variables
To assign a variable, use =
An example is:
x = 2
y = 5
print(x+y) will output 7
print(type(x)) will output the < class ‘int’ >
These are examples of what you’ll learn in basic of python - remember, programming depends on experience and always focus on it. Keep practicing and searching will improve your skill at python.
Computers were originally invented to
Group of answer choices
A.to share information on the Internet.
B.make complex mathematical calculations possible and make tasks easier for humans.
C.to play video games.
Answer:
B
Explanation:
It's B because why would it me made to play video games
Answer:
B
Explanation:
A, the internet didnt exist yet, so it cant be this
C, video games would require computers, so its ruled out on a similar basis as the previous
Consider two different implementations, M1 and M2, of the same instruction set. There are three classes of instructions (A, B, and C) in the instruction set. M1 has a clock rate of 60MHz and M2 has a clock rate of 80MHz. The average number of cycles of each instruction class and their frequencies (for a typical program) are as follows:
Instruction Class M1-cycles M2-cycles/ Frequency
/instruction class instruction class
A 1 2 50%
B 2 3 20%
C 3 4 30%
a. Calculate the average CPI for each machine, M1 and M2.
b. Calculate the CPU execution time of M1 and M2.
Explanation:
A.)
we have two machines M1 and M2
cpi stands for clocks per instruction.
to get cpi for machine 1:
= we multiply frequencies with their corresponding M1 cycles and add everything up
50/100 x 1 = 0.5
20/100 x 2 = 0.4
30/100 x 3 = 0.9
CPI for M1 = 0.5 + 0.4 + 0.9 = 1.8
We find CPI for machine 2
we use the same formula we used for 1 above
50/100 x 2 = 1
20/100 x 3 = 0.6
30/100 x 4 = 1.2
CPI for m2 = 1 + 0.6 + 1.2 = 2.8
B.)
CPU execution time for m1 and m2
this is calculated by using the formula;
I * CPI/clock cycle time
execution time for A:
= I * 1.8/60X10⁶
= I x 30 nsec
execution time b:
I x 2.8/80x10⁶
= I x 35 nsec
what is the difference between the flip horizontal and the flip vertical option
Answer:
Flip horizontal: Flip around the vertical axis. Flip vertical: Flip around the horizontal axis.
Explanation:
hope this helps
hy plzz help me friends
Answer:
Ok so RAM is Random-Access-Memory.
RAM can store data just like in a hard drive - hdd or solid state drive - ssd
but the thing is that ram is really fast and data is only stored when RAM chips get power. On power loss your all data will be lost too.
ROM thanslates to Read-Only-Memory - so data in ROM chips can't be modifyed computer can just read the data but not write.
Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware.
Have a great day.
Explanation:
Answer:
Ram which stands for random access memory, and Rom which stands for read only memory are both present in your computer. Ram is volatile memory that temporarily stores the files you are working on. Rom is non-volatile memory that permanently stores instructions for your computer
A colleague has written a section of the main body of the same financial report. He has a long paragraph with lots of numbers. You suggest that he make this section easier to read by adding _____.
graphics
a reference
columns
a table
Answer:
a table
Explanation:
Answer: a table
Explanation:
Analyzing Types of Graphics
In which situation would a floating image be more useful than an in-line image?
O You want the image to stay within a specific paragraph of text.
O You want the image to come from a gallery of photos in your camera.
You want the image to be on the final page no matter what happens to the text.
O You want a screen-capture image of a software program on your computer.
Answer:you want the image to be on the final page no matter what happens to the text.
The situation that a floating image be more useful than an in-line image when you want the image to be on the final page no matter what happens to the text.
What helps in float image?The use of Cascading Style Sheets is known to be a float property that often functions to help place images on a web page.
Conclusively, given the situation above, that a floating image be more better than an in-line image only if you want the image to be on the final page no matter what occurs in the text.
Learn more about Graphics from
https://brainly.com/question/25817628
Write a statement that takes a variable named file_object that contains a file object and reads its contents into a Python list of lines. Store the resulting list into a variable named file_contents.Write a statement that takes a variable named file_object that contains a file object and reads its contents into a Python list of lines. Store the resulting list into a variable named file_contents.
Answer:
Answered below
Explanation:
#file is first opened and saved into file_object variable.
file_object = open('new_file.txt', 'r')
file_contents = file_object.readlines()
#the readlines() reads the contents of the file, line by line and returns a list of lines. Therefore, file_contents contains a list of lines read from file object and can be iterated over to get each line.
how can we achieve an effective communication with other people
can someone write the answers pls :(?
Answer:
A: job sharing.
B: part-time working.
C: flexible hours.
D: compressed hours.
A: Payroll workers, Typing pool workers, Car production workers, Checkout operators, Bank workers
B: Website designers, Computer programmers, Delivery drivers in retail stores, Computer maintenance staff, Robot maintenance staff.
3: Can lead to unhealthy eating due to dependency on ready meals, Can lead to laziness, Lack of fitness/exercise, Manual household skills are lost.
4: Microprocessor controlled devices do much of the housework, Do not need to do many things manually, Do not need to be in the house when food is cooking, Do not need to be in the house when clothes are being washed, Can leave their home to go shopping/work at any time of the day, Greater social interaction/more family time, More time to go out/more leisure time/more time to do other things/work, Are able to do other leisure activities when convenient to them, Can encourage a healthy lifestyle because of smart fridges analysing food constituents, Do not have to leave home to get fit
Explanation:
I tried really hard to solve these. I hope this answers your questions. can you make me the brainliest, that all I ask since I answered it for you. Pleasure solving these. C:
How should employees behave during interactions with clients and co-works
Answer:always be nice and welcoming
Explanation:
1.An algorithm used to find a value in an array is called a ______________.
2.A search algorithm returns the element that we’re searching for, rather than the index of the element we’re searching for.
A.True
B.False
3.Suppose we used our searching algorithm to look for a specific element in a list. The algorithm returned -1. What does this mean?
A.Our algorithm found the element we were looking for which is -1.
B.Our algorithm did not find the element we were looking for.
C.Our algorithm found the element, but could not determine the index.
D.Our algorithm found the element at index -1.
Answer:
1.search 2.False 3.Our algorithm did not find the element we were looking for.
Explanation:
An algorithm used to find a value in an array is called a:
SearchA search algorithm returns the element that we’re searching for, rather than the index of the element we’re searching for is:
FalseIf we used our searching algorithm to look for a specific element in a list and the algorithm returned -1. The thing which this means is:
Our algorithm did not find the element we were looking for.What is Algorithm?This refers to the use of well defined instructions to execute a particular problem in sequential order.
With this in mind, we can see that algorithm is used to search for particular items and when the item is not found, then there would be a return of -1 because the element was not included in the array.
Read more about algorithms here:
https://brainly.com/question/24953880
Can i get any information on this website i'd like to know what its for ?
https://www.torsearch.org/
Explanation: torsearch.org is a safe search engine mainly used for dark wed purposes. It does not track your location nor give any personal information.
1. Add the following method to the Point class:
public double distance(Point other)
Returns the distance between the current Point object and the given other Point object. The distance between two points is equal to the square root of the sum of the squares of the differences of their x- and y-coordinates. In other words, the distance between two points (x1, y1) and (x2, y2) can be expressed as the square root of (x2 - x1)2 + (y2 - y1)2. Two points with the same (x, y) coordinates should return a distance of 0.0.
public class Point {
int x;
int y;
// your code goes here
}
2. Create a class called Name that represents a person's name. The class should have fields named firstName representing the person's first name, lastName representing their last name, and middleInitial representing their middle initial (a single character). Your class should contain only fields for now.
3. Add two new methods to the Name class:
public String getNormalOrder()
Returns the person's name in normal order, with the first name followed by the middle initial and last name. For example, if the first name is "John", the middle initial is 'Q', and the last name is "Public", this method returns "John Q. Public".
public String getReverseOrder()
Returns the person's name in reverse order, with the last name preceding the first name and middle initial. For example, if the first name is "John", the middle initial is 'Q', and the last name is "Public", this method returns "Public, John Q.".
4. Add the following method to the Point class:
public int quadrant()
Returns which quadrant of the x/y plane this Point object falls in. Quadrant 1 contains all points whose x and y values are both positive. Quadrant 2 contains all points with negative x but positive y. Quadrant 3 contains all points with negative x and y values. Quadrant 4 contains all points with positive x but negative y. If the point lies directly on the x and/or y axis, return 0.
public class Point {
private int x;
private int y;
// your code goes here
}
Answer:
Explanation:
The following code is written in Java and creates all of the methods that were requested in the question. There is no main method in any of these classes so they will have to be called from the main method and call one of the objects created method for the code to be tested. (I have tested it and it is working perfectly.)
class Point {
private int x, y;
public void Point(int x, int y) {
this.x = x;
this.y = y;
}
public double distance (Point other) {
double distance = Math.sqrt(Math.pow((other.x - this.x), 2) + Math.pow((other.y - this.y), 2));
return distance;
}
public int quadrant() {
if (this.x > 0 && this.y > 0) {
return 1;
} else if (this.x < 0 && this.y > 0) {
return 2;
} else if (this.x < 0 && this.y < 0) {
return 3;
} else if (this.x > 0 && this.y < 0) {
return 4;
} else {
return 0;
}
}
}
class Name {
String firstName, lastName;
char middleInitial;
public String getNormalOrder() {
String fullName = firstName + " " + middleInitial + " " + lastName;
return fullName;
}
public String getReverseOrder() {
String fullName = lastName + ", " + firstName + " " + middleInitial;
return fullName;
}
}
Select the true statement about network protocols.A protocol determines how the sending computer notifies the receiving computer about the presence of compressed data.A protocol determines how it will be executed on every networked device.A protocol determines how the sending device notifies the receiving device that there is data to be sent.A protocol is not required for all data transmissions.
Answer:
A protocol determines how the sending device notifies the receiving device that there is data to be sent.
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A protocol can be defined as a standard set of rules established by the regulatory agencies to determine how data are transmitted from one network device to another.
Generally, the standard Internet communications protocols which allow digital computers to transfer (prepare and forward) data over long distances is the TCP/IP suite.
A protocol determines how the sending device notifies the receiving device that there is data to be sent, regardless of any difference in terms of structure or design.