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Feliz [49]
3 years ago
11

True or False

Computers and Technology
1 answer:
sineoko [7]3 years ago
8 0

Answer:

VPNs encrypt your traffic while proxy servers don't.

Explanation:

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cluponka [151]

Answer:

where is the picture?????

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3 years ago
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Who is the father of modern computer?​
nydimaria [60]

Answer:

I would say Alan Turing is the father of the modern computer

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A small grocery store has one checkout.You have been asked to write a program to simulate the grocery store as it checks out cus
Masteriza [31]

Answer:

Check the explanation

Explanation:

PYTHON CODE :

#import random function

from random import randint

#class Queue declaration

class Queue:

#declare methods in the Queue

def __init__(self):

self. items = []

def isEmpty(self):

return self. items == []

def enqueue(self, item):

self.items. insert(0, item)

def dequeue(self):

return self. items. pop()

def size(self):

return len(self. items)

def getInnerList(self):

return self.items

#This is customer Queue

class Customer:

#declare methods

def __init__(self,n):

self.numberOfItems=n

def __str__(self):

return str(self. numberOfItems)

def getNumberOfItems(self):

return self. numberOfItems

#This is expresscheker customer queue

class Expresschecker:

def __init__(self,n):

self.numberOfItems=n

def __str__(self):

return str(self. numberOfItems)

def getNumberOfItems(self):

return self. numberOfItems

#Returns random checkout time, based on number of items

def checkOut(Expresschecker):

items = Expresschecker. getNumberOfItems()

if items <= 10:

return randint(2, 5)

if items <= 20:

return randint(6, 9)

return randint(10, 14)

#Initiate queue for the Expresschecker

Expresschecker = Queue()

#declare total customers

totalcheckoutCustomers = 10

#express Customers shopping..

for i in range(totalcheckoutCustomers):

#Each putting Between 1 to 25 items

randomItemsQty = randint(1, 25)

customer = Customer(randomItemsQty)

#Getting into queue for checkout

Expresschecker. enqueue(customer)

#====Now all express Customers having

#random qty of items are in Queue======

#intial time

totalTime=0

#define the size of the queue

totalcheckoutCustomers = Expresschecker. size()

#using for-loop until queue is empty check out

#the items in the express cheker queue

while not(Expresschecker. isEmpty()):

totalTime+=randint(1,5)

#Picking a customer

expresscustomer = Expresschecker. dequeue()

#Processing the customer

timeTaken = checkOut(expresscustomer)

#add the time for each custimer

totalTime+=timeTaken

#compute average waiting time

averageWaitingTime = totalTime/totalcheckoutCustomers

#display the average waiting time

print("Average waiting time for the express customer queue is "

+str(averageWaitingTime)+" minutes ")

print("Remaining Custimers in the express customer Queue is: ",

Expresschecker. size())

#Returns random checkout time, based on number of items

def checkOut(customer):

items = customer. getNumberOfItems()

if items <= 10:

return randint(1, 5)

if items <= 20:

return randint(6, 10)

return randint(11, 15)

#in

customersQueue = Queue()

totalCustomers = 20 #Change number of customers here

#Customers shopping..

for i in range(totalCustomers):

#Each putting Between 1 to 25 items

randomItemsQty = randint(1, 25)

customer = Customer(randomItemsQty)

#Getting into queue for checkout

customersQueue. enqueue(customer)

#====Now all Customers having random qty

#of items are in Queue======

totalTime=0

totalCustomers = customersQueue. size()

while not(customersQueue. isEmpty()):

totalTime+=randint(1,5)

#Picking a customer

customer = customersQueue. dequeue()

#Processing the customer

timeTaken = checkOut(customer)

totalTime+=timeTaken

#Result=============================

averageWaitTime = totalTime/totalCustomers

print("Average wait time for the customer queue is

"+str(averageWaitTime)+" minutes ")

print("Remaining Customers in the customer Queue is:

",customersQueue. size())

5 0
3 years ago
Jasmine is writing a shopping app. She has created a variable to keep track of the number of items in the shopping cart. Everyti
Gemiola [76]

Answer:

b. cart total + 1

Explanation:

A. cart total=1 do increment the total with every 1 click here, it only 're-assigns cart total with value 1 for every click, hence it's always 1.

B. In every click, 1 is always added to the previous value of cart total, like addItemButton(cart total+1) or so.

C. This would have worked too if "cart total" and "cartTotal" where of same type.

D. cart total is just being initially defined here.

E. Likewise here, var shows that cart total has just only been declared.

6 0
3 years ago
DDL statement for adding a column to an existing table is
vaieri [72.5K]

Answer:to add a column to existing table.

to rename any existing column.

to change datatype of any column or to modify its size.

to drop a column from the table.

Explanation:

hope this help

4 0
2 years ago
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