Which of the following is NOT TRUE about the information stored in a column-family database?
a) Column families are organized so that all information about each new record is stored close by on disk
b) Column family databases, like document databases, do not require all columns in all rows, making it flexible.
c) Column families are organized into groups of data items that are frequently used together.
d) Both column family databases and relational databases use unique identifiers for rows of data

Answer:

The answer is A it uses simple words and symbols to communicate the design of a program.

Explanation:

Science Stuff

The true regarding pseudocode is it uses simple words and symbols to communicate the design of a program. The correct option is a.

Pseudocode is a simple language description of an algorithm or other system's processes used in computer science. Although pseudocode frequently employs standard programming language structure rules, it is written for humans rather than automated comprehension.

In the field of computer science, a pseudocode is a linguistic description of an algorithm's steps. They consist of text-based components and are simple. Informally expressing concepts and techniques during the development process is known as pseudocoding.

Therefore, the correct option is a, It uses simple words and symbols to communicate the design of a program.

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When you tell your smartphone to check for new email messages, the smartphone communicates with the email server.

Smartphones typically connect to email servers using protocols such as POP3 (Post Office Protocol version 3), IMAP (Internet Message Access Protocol), or Exchange ActiveSync.

These protocols allow the smartphone to establish a connection with the email server and retrieve new email messages. The smartphone sends a request to the email server, which then checks for any new messages associated with the user's email account. If there are new messages, the server sends the email data back to the smartphone for display in the email application.

In summary, the smartphone communicates directly with the email server to check for new email messages and retrieve them for display on the device.

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Answer:

Difference of File Menu between Word 2003, Word 2007 and Word 2010 There is a few difference of the File menu between Classic Menu for Word 2007/2010 and Word 2003. The File drop down menu in Word 2007 and 2010 includes 18 menu items, while 16 menu items in Word 2003.

Explanation:

Answer:

In word there is a setting where you can mange all of user's permission in the document. These are a few permission settings: Read only and Can edit.

Word to keep other people from changing the text of the file, while still allowing you and the relative to make changes with the help of Read-only and Can edit.

A document is a category of data that such a person or group of users may find beneficial. There is both digital and back into old patterns forms of this information.

There is a setting that allows you to control every user's permissions in the file. A few authorization parameters are as follows: both read-only and editable. Making a text a read-only file allows it to be duplicated or viewed, but not changed.

If any of the evaluators attempts to alter a read-only file, the modifications cannot be committed by renaming the document or saving it in a different place.

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Answer:

The answer to this question is given below in the explanation section.

Explanation:

You use a really long cable to connect the desktop computer in your bedroom to the router on the other side of your house. Which of these may be a problem?

The correct answer to this question is  Attenuation.

Attenuation is the loss of signal strength in networking cables or connections. This may occur when the cable is spread over a long distance.   Attenuation is typically measured in  (dB) decibels or voltage and can occur due to a variety of factors. Attenuation occurs in the cable when there is a reduction in power of the light signal as it is transmitted.

Other options are not correct because IP/MAC confusion will not occur due to long-distance cable. Lack of input device may not create the problem and adaptation also.

Answer:

I think it's B) templates

                   Sorry if it's wrong I'm not sure!!

Explanation:

Within a word processing program, predesigned files that have layout and some page elements already completed are called: B. templates.

In Computers and Technology, word processor can be defined as a processing software program that is typically designed for typing and formatting text-based documents. Thus, it is an application software that avail end users the ability to type, format and save text-based documents such as .docx, .txt, and .doc files.

A template refers to a predesigned file or sample in which some of its page elements and layout have already completed by the software developer.

In this context, predesigned files in a word processing program, that have layout and some page elements already completed by the software developer is referred to as a template.

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Answer:

s the term suggests, wear leveling provides a method for distributing program and erase cycles uniformly throughout all of the memory blocks within the SSD. This prevents continuous program and erase cycles to the same memory block, resulting in greater extended life to the overall NAND flash memory.

Explanation:

Answer: a decision about changes in advertising

Explanation:

#include <iostream>

#include <vector>

#include <numeric>

int main() {

   std::vector<int> store(3);

   for(int i=0;i<3;i++){

       std::cout << i+1 << ". test result: ";

       std::cin>>store[i];

   }

   for(int i=0;i<3;i++) {

       std::cout << i+1 << ". test score: " << store[i] << std::endl;

   }

   std::cout << "Average: " << double(std::accumulate(store.begin(),store.end(),0.0)/store.size()) << std::endl;

   return 0;

}

Answer:

Comments

.....

Answer:

num1 = int(input("What is your first number? >: "))

num2 = int(input("What is your second number? >: "))

if num1 >= num2:

    answer = num1 - num2

else:

    answer = num2 - num1

print("Your answer is " + str(answer))

Explanation:

This won't loop though :(

Answer:

Chrome, Safari, Microsoft Edge

Explanation:

Web browsers such as Chrome, Safari, Microsoft Edge would allow you to visit a website  

Explanation: some people do the same every dsy things

Answer: MS-DOS

Explanation:

Answer:

When information is being sent from one computer to another it is broken down into small bits of data called 'packets'. Each packet includes information about where the data is going to, where it is from and how to reassemble it.

Data that is received to a user's computer from another computer in the network is called:

According to the given question, we are asked to show what the Data that is received to a user's computer from another computer in the network is called.

As a result of this, we can see that when data is sent from one computer to another, then it is called packets because they are there to ensure reliability and data efficiency by sending small packets of data.

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Answer:

John Mauchy 1. designed to be a stored-program computer 2. it was binary rather than decimal

Answer:

Losing jobs. Fire. Destruction of property.

Explanation:

Having a company shut down due to lack of protection and having people testify products unsafe. If software blows up it could cause desturction of property therefore causing the effect of many people losing their jobs.

Based on data on the EEPROM chip, the majority of systems will automatically establish storage settings (speed, voltage, and timing, including latency).

A computer is a device that may be configured to automatically perform series of mathematical or logical operations (computation). Modern digital computers are capable of running programmes, which are generalised sets of operations. These apps give computers the ability to carry out a variety of tasks. A computer is a minimally functional computer that contains the peripheral devices, system software (primary software), and hardware required for proper operation. This phrase may also apply to a collection of connected computers that work as a unit, such as a network or group of computers. The sole purpose of early computers was to perform computations. Since ancient times, simple manual tools like the calculator have supported humans in performing computations.

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Answer:

The programming language is not stated; However, I'll answer this question using Python programming language.

This program does not make use of comments; See explanation section for detailed explanation of the program

Program starts here

print("Welcome to Shady Rest Hotel")

print("Please select any of the following:")

print("Press 1 for a queen bed:")

print("Press 2 for a king:")

print("Press 2 for a king and a pullout:")

userinput = input("Enter your selection: ")

if userinput == "1":

     print("You selected the queen bed")

     print("Price = $125")

elif userinput == "2":

     print("You selected a king bed")

     print("Price = $139")

elif userinput == "3":

     print("You selected a suite with king bed and a pullout couch")

     print("Price = $165")

else:

     print("Invalid Selection")

     print("Price = $0")

Explanation:

This line welcomes the user to the hotel

print("Welcome to Shady Rest Hotel")

The next 4 lines (italicized) gives instruction to the user on how to make selection

print("Please select any of the following:")

print("Press 1 for a queen bed:")

print("Press 2 for a king:")

print("Press 2 for a king and a pullout:")

This line prompts the user for input

userinput = input("Enter your selection: ")

If user input is 1, the italicized lines displays user selection, which is the queen bed and the price; $125

if userinput == "1":

     print("You selected the queen bed")

     print("Price = $125")

However, if user input is 2, the italicized lines displays user selection, which is the king bed and the price; $139

elif userinput == "2":

     print("You selected a king bed")

     print("Price = $139")

However, if user input is 3, the italicized lines displays user selection, which is a suite with king bed and a pullout couch and the price; $165

elif userinput == "3":

     print("You selected a suite with king bed and a pullout couch")

     print("Price = $165")

Lastly, the following is executed if user input is not 1, 2 or 3 and the price is set to 0

else:

     print("Invalid Selection")

     print("Price = $0")

In the given computer system scenario, there are three access lines available for users to access the central computer simultaneously. The arrival rate of calls is 28 per hour, and the service rate per line is 18 calls per hour.

We are required to calculate the probabilities of different numbers of access lines being in use, the probability of an agent being denied access, and the average number of access lines in use.

(a) To calculate the probabilities of different numbers of access lines being in use, we can use the formula for the probability of having k lines in use in a system with three lines, given by P(k) = (1 - p) * p^(k-1), where p is the utilization factor. The utilization factor can be calculated as p = λ / μ, where λ is the arrival rate and μ is the service rate per line.

Using the given values, we can calculate the probabilities as follows:

P(0) = (1 - p) * p^2

P(1) = (1 - p) * p^0

P(2) = (1 - p) * p^1

P(3) = p^3

(b) The probability of an agent being denied access is equal to the probability of all three access lines being in use, which is P(3) = p^3.

(c) The average number of access lines in use can be calculated using the formula for the average number of customers in a system, given by L = λ / (μ - λ). In this case, since there are three lines available, the average number of access lines in use would be L / 3.

By plugging in the values and calculating the probabilities and average number of access lines, we can obtain specific numerical answers.

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The true statement about constructor would be:

A constructor is a special type of method that is automatically called when an object of a class is created. It is used to initialize the state of an object and can also be used to perform any other setup that needs to be done before the object is used. Constructors can take parameters, which allows the user to specify the initial state of the object. They are typically defined by the programmer, but some programming languages provide default constructors if none are defined. Constructors are also known as "initializer" and "ctor" for short.

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Answer:

A. Software updates

Explanation:

Updating the software of something can affect how the hardware works, which can lead to making the server easier to access. A good example is the US government using at max win 7 (in some cases, XP) due to possible security issues with Win 10.

Answer:

Bas

Files written with QBASIC must be run using the program and have the "bas" file extension.

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Answer:

Explanation:

Scratch cloud variables are a feature in Scratch, a visual programming language, that allows for saving and sharing data across different projects and even across different computers. Once a variable is saved as a cloud variable, it can be accessed from any other project that has been shared with the same Scratch account.

If you set the value of a cloud variable to 10 on one computer, and then log in to Scratch from a different computer using the same Scratch account, you will be able to access the variable and its value (10) from that other computer.

It is important to note that the cloud variable feature is only available for Scratch accounts with a login, if you don't have a Scratch account, you won't be able to use this feature.

It's also good to keep in mind that if you set a variable as a cloud variable in a project, it will be accessible to anyone who has access to that project. So make sure you understand the sharing settings and permissions before using cloud variables in a project that contains sensitive information.

The first and last position of an element in a sorted array can be found using a modified binary search algorithm.

To find the first and last position of an element in a sorted array, you can use a modified version of the binary search algorithm.

  - Set the "start" variable to 0 and the "end" variable to the length of the array minus 1.

  - While the "start" is less than or equal to the "end":

    - Calculate the middle index as (start + end) / 2.

    - If the middle element is equal to the target element:

      - Update the "first" index to the middle index if it is still -1 or if it is smaller than the current "first" index.

      - Update the "last" index to the middle index if it is still -1 or if it is greater than the current "last" index.

      - Continue searching towards both ends of the array to find the first and last occurrences of the element.

    - If the middle element is less than the target element, update the "start" to middle + 1.

    - If the middle element is greater than the target element, update the "end" to middle - 1.

The time complexity of this approach is O(log n) since it performs a binary search on the sorted array, where n is the size of the array.

Please note that the array must be sorted in ascending order for this approach to work correctly.

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Task 1:

float75 = float(75)

string75 = "75"

# you cannot add together a number and a string because a string has no inherent numerical value like a number does.

Task 2:

num = float(input("Enter a number"))

print(num**2)

Task 3:

num = int(input("Enter an integer: "))

print("When you divide "+str(num)+" by 7, the quotient is "+str(num//7)+" and the remainder is "+str(num%7)+".")

Task 4:

gigs = int(input("How many gigabytes does your flashdrive hold? "))

print("A flashdrive with "+str(gigs)+ " gigabyte(s) holds "+str(gigs*8589934592)+" bit(s).")

For task 4, you might have to change the number 8589934592 to something else. I'm not entirely sure how many bits are in a gigabyte. I hope this helps though.

Vectors

Vectors are mathematical objects used to represent physical quantities that have both direction and magnitude. They are typically represented by an arrow, with the length of the arrow representing the magnitude and the direction of the arrow representing the direction of the vector. Vectors can be used to represent physical quantities such as force, velocity, and acceleration. They can also be used to represent abstract quantities such as electric field, magnetic field, and gravitational field. Vectors are useful in physics because they can be used to calculate the effects of multiple forces acting on an object.

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the answer to this is  2 and 3

Hope this helped

-scav

Answer:

2 3 baka baddies

Explanation:

The mistake in this Python code is that the input function returns a string, not an integer. Therefore, when you compare the value entered by the user to an integer (2000 or 1999), it will result in a TypeError.

To fix this, you can convert the input to an integer using the int() function. Here's the corrected code:

Birth_Year = int(input("What is your birth year? "))

if Birth_Year <= 2000:

   print("Wow, you're old.")

if Birth_Year >= 1999:

   print("lol, you're still a baby.")

Note that I've also added indentation to the print statements so they are executed only when the condition is true.

Answer:

Set the variable as an integer

Explanation:

You will need to set the question as an integer:

Birth_year = int(input("What is your birth year"))

This will ensure that the number placed in will become an integer, instead of a string