Qla
What are the activities a Database Designer will do if using the SDLC to design a Database [10]
Q1b
List the five main components of Access Database and state their uses [10]

Answer:

Processor P2 has the highest performance expressed in instructions per second.

Explanation:

Given:

Processors:

P1

P2

Clock rate of P1 = 3 GHz

Clock rate of P2 = 3 GHz

Cycles per instruction = CPI of P1 = 1.5

Cycles per instruction = CPI of P2 = 1.0

To find:

which processor has the highest performance in instructions per second (IPS)

Solution:

Compute CPU time:

CPU time =  (Number of instructions * cycles per instruction) / clock rate

CPU time = (I * CPI) / R

We are given the CPI and clock rate. So

CPU time = (I * CPI) / R

 I / CPU time = R/CPI

Since

Instructions per second = Number of instructions (I) / execution time

                             IPS     = I / CPU time

So

Instructions Per Second = clock rate / cycles per instruction

IPS = R/CPI

Putting the values in above formula:

Instructions Per Second for P1 = IPS (P1)

                                                  = clock rate P1 / CPI (P1)

                                                  = 3 GHz / 1.5

                                     IPS (P1) = 2            

As 1 GHz = 10⁹ Hz

IPS (P1) = 2x10⁹

Instructions Per Second for P2 = IPS (P2)

                                                  = clock rate P2 / CPI (P2)

                                                  = 3 / 1.0

                                     IPS (P2) = 3

As 1 GHz = 10⁹ Hz

IPS (P2) = 3x10⁹

Hence processor P2 has the highest performance expressed in instructions per second i.e. 3x10⁹

Answer:

I am writing the program in JAVA and C++

JAVA:

public int createLicenseNum(int customID){  //class that takes the customID as parameter and creates and returns the licenseNum

       licenseNum = (100000 * customID) + licenseYear;  //licenseNum creation formula

       return(licenseNum);     }

In C++ :

void DogLicense::CreateLicenseNum(int customID){ //class that takes the customID as parameter and creates the licenseNum

licenseNum = (100000 * customID) + licenseYear; } //licenseNum creation formula

Explanation:

createLicenseNum method takes customID as its parameter. The formula inside the function is:

licenseNum = (100000 * customID) + licenseYear;

This multiplies 100000 to the customID and adds the result to the licenseYear and assigns the result of this whole expression to licenseNum.

For example if the SetYear(2014) means the value of licenseYear is set to 2014 and CreateLicenseNum(777) this statement calls createLicenseNum method by passing 777 value as customID to this function. So this means licenseYear = 2014 and customID  = 777

When the CreateLicenseNum function is invoked it computes and returns the value of licenseNum as:

licenseNum = (100000 * customID) + licenseYear;

                     = (100000 * 777) + 2014

                     = 77700000 + 2014

licenseNum = 77702014                                                                                                        

So the output is:

Dog license: 77702014          

To call this function in JAVA:

public class CallDogLicense {

public static void main(String[] args) {//start of main() function

    DogLicense dog1 = new DogLicense();//create instance of Dog class

dog1.setYear(2014); // calls setYear passing 2014

dog1.createLicenseNum(777);// calls createLicenseNum passing 777 as customID value

System.out.println("Dog license: " + dog1.getLicenseNum()); //calls getLicenseNum to get the computed licenceNum value

return; } }

Both the programs along with the output are attached as a screenshot.

Answer:

public int createLicenseNum(int customID){

  licenseNum = (100000 * customID) + licenseYear;

  return(licenseNum);    

}

Explanation:

Answer:

Explanation: The operating system simply acts as the communication interface between the user and the components if a computer including it's hardware. The reasons why an operating system is pivotal in leaching and learning includes :

In most cases, teaching and learning requires the use of application programs or softwares which could be the program to be learnt or that which is used to aid learning. Irrespective of the type of application program, it's installation and usage depends and is made possible with the help of an operating system. Programs used for video sessions during teaching, writing programs and document editors all require an operating system in other to aid installation and ultimately function.

Answer:

a)

Account account = new Account();

b)

Account account = new Account(firstName, age);

c)

account.Age = newAge;

d)

int count = Account.Count;

Explanation:

a)

new is the keyword which is used to create an object.

Account is the class name.

account is the name of an object of class Account.

account object is created to access the class Account.

Account() is the constructor of Account class. This is the default constructor and it has no parameters. Constructor has the same name as class. When a account object is created, constructor Account will be invoked.

b)

Account is the class name.

account is the name of an object of class Account.

Account() is the constructor of Account class. This is the parameterized constructor and it has two parameters i.e. firstName and age. Constructor has the same name as class. When a account object is created, constructor Account will be invoked.

c)

account.Age = newAge;

Here account is the object name. The Age property to access and update the private field of the Account class is set to the variable named newAge.

d)

This int count = Account.Count; statement gets the value of a public static field named Count that’s defined in the Account class, and stores the value in a new int variable named count.

Answer:

T

Explanation:

Answer:

[OPINION]

First one is correct.

For the second one, I think the leader should accept the invitation and forward it to the entire team. [As the team experienced success due to group work, so every team member should be invited... as the success was a result of the hardwork of every member]

About the third one, I think it depends on the person so you may be correct. But, if I was asked to choose I would have been chosen.... rational approach

This is just my opinion. Hope it helps you:)

Answer:

you may need to do this if you need to play video game that may need you to update drivers

it would be appropriate to update the motherboard drivers to fix a problem with video while playing video game.

A motherboard is called as the main printed circuit board (PCB) in a computer or laptop. The motherboard is the backbone of processing in PCs.

All components and external peripherals connect through the motherboard.

Thus, the situation in which it is needed to update the motherboard drivers to fix a problem is while playing video game.

Learn more about motherboard.

https://brainly.com/question/15058737

#SPJ2

Answer:

Replace

/* Your solution goes here */

with

if (bagOunces < 2) {

   System.out.print("Too Small");

}

else if(bagOunces > 10) {

   System.out.print("Too Large");

}

else {

   System.out.print((bagOunces * 6)+" seconds");

}

Explanation:

This line checks if bagOunces is less than 2;

if (bagOunces < 2) {

If yes, the string "Too Small" is printed

   System.out.print("Too Small");

}

This line checks if bagOunces is greater than 10

else if(bagOunces > 10) {

If yes, the string "Too Large" is printed

   System.out.print("Too Large");

}

The following condition is executed if the above conditions are false

else {

This multiplies bagOunces by 6 and adds seconds

   System.out.print((bagOunces * 6)+" seconds");

}

Answer:

i dont know

Explanation:

Answer:

Economy

Explanation:

Education geared towards readying students to become an employable technician or becoming skilled in a particular craft are known as vocational education. Vocational education, otherwise known as career and technical education is provided by a vocational school

It is suggested that there should be wider range of educational coverage between higher education and vocational educational due to the increasing importance of the use of technology in the workplace

As such technical vocational education is generally taken as an important tool to grow the economy while particularly reducing the unemployment among the youth.

Answer:

D I think it

Explanation:

Answer:

I think it is HostGator

Explanation:

I took the test and I put Podbean and it was wrong.

Answer:

def main():

 n = int(input("Enter a number to find its sum! "))

 sum = int((n*(n+1)) / 2)

 print(str(sum))

main()

Explanation:

Here is some code I quickly came up with, you can rehash it for your liking.

I basically took this formula and translated it into python code on line 3. Make sure you use paratheses correctly when translating forumlas or any equation, Order of Operations is everything.

Lmk if this helped!

Answer:

Explanation:

Python is a computer programming language often used to build websites and software, automate tasks, and conduct data analysis. Python is a general purpose language, meaning it can be used to create variety of different programs and isn't specialised for any specific problems

Answer:

The correct answer is D

In the case of printing pages when you are not sure of the number of the page the printer will print you should leave some gaps or margins or leave space between the two pages.

Learn more bout the might be considered "old-school,".

brainly.com/question/26057812.

Answer:

There are no statements in the question, so I explained the whole code.

Explanation:

A map consists of key - value pairs. The put method allows you to insert values in the map. The first parameter in the put method is the key, and the second one is the value. Also, the keys must be unique.

For example, map.put("123", "John Smith");   -> key = 123, value = John Smith

Even though the key 123 is set to John Smith at the beginning, it will have the updated value Steve Yao at the end. That is because the keys are unique.

Note that the key 222 also has Steve Yao for the value, that is totally acceptable.

Answer:

Yes, badlion is safe. The further explanation is given below.

Explanation:

Answer:

Tracking and Review features.

Explanation:

Tracking and Review are used to show detailed Markup when reviewing a document to make some changes to it.

To reveal detailed Markup, select REVIEW, then select VIEW OPTION from the Review list.

A Simple Markup shows a red line to where changes have already been made.

All Markup shows different person's edits in different colors of texts.

Strong emotions can interfere with your ability to make wise decisions, think and reason, and judge risk. The correct option is (D).

Strong emotions can indeed interfere with a person's ability to make wise decisions, think clearly and reason logically, and accurately judge risks.

Emotions have the potential to cloud judgment, bias perception, and impede rational thinking, which can impact decision-making processes.

Therefore, Strong emotions can interfere with your ability to make wise decisions, think and reason, and judge risk. The correct option is (D).

To know more about the emotions:

https://brainly.com/question/14587591

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Answer:

filter

Explanation:

the filter feature allows him to fetch data that only meets a certain criteria(those who didn't play in the last game)

The FILTER feature in a database allows James to list on the players that did not play in the game.

The FILTER feature in Excel is used to clear out a number of statistics primarily based totally on the standards which you specify. The feature belongs to the class of Dynamic Arrays functions.

The end result is an array of values that mechanically spills into a number cells, beginning from the Cells wherein you input a formula.

Thus, The FILTER feature in a database allows James to list on the players that did not play in the game.

Learn more about FILTER feature here:

https://brainly.com/question/11866402

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Answer:

The last octet

Explanation:

Here in the question, given the sub net mask, we want to know which octet of the subnet mask will tell the router the corresponding host ID.

The correct answer to this is the last octet. It is the last octet that will tell the router the corresponding host ID

Answer:

a. Local user profile.

Explanation:

Local user profile is a type of user profile which is stored in the C:\Users folder and is automatically created when a user logs on to the computer for the first time and it is being stored on the local hard disk of the computer.

Generally, in Microsoft windows any change made to the local user profile is peculiar to the user and the host computer on which the change is made.

Hence, local user profiles avails several users the opportunity of sharing a single computer with their respective user settings and data.

Answer:

This function will return a character grade for every floating-point grade for every student in the class.

function grade( floatPoint ){

      let text;

      switch ( floatPoint ) {

        case floatPoint < 40.0 :

             text= " F ";

             break;

        case floatPoint == 40.0 :

             text= " P ";

             break;

        case floatPoint > 40.0 && floatPoint <= 50.0 :

             text=  " C ";

             break;

        case floatPoint > 50.0 && floatPoint < 70.0 :

             text=  " B ";

             break;

        case floatPoint >=70.0 && floatPoint <= 100.0 :

             text= " C ";

             break;

        default :

            text= "Floating point must be between 0.0 to 100.0"

      }

     return text;

}

Explanation:

This javascript function would return a character grade for floating-point numbers within the range of 0.0 to 100.0.

Answer:

Here are the methods:

a) count

def count(object, list):  

   counter = 0

   for i in list:

       if i == object:

           counter = counter + 1

   return counter

b) in : return True if the item is in the list

def include(object, list):  

   for i in list:

       if i == object:

           return True

   return False

c)  reverse

def reverse(list):

   first = 0            

   last = len(list)-1    

   while first<last:

       list[first] , list[last] = list[last] , list[first]

       first = first + 1

       last = last - 1

   return list

d) index: return -1 if the item is not in the list  

def index(object, list):

   for x in range(len(list)):

       if list[x] == object:

           return x

   return -1

e)  insert

def insert(object, index, list):

   return list[:index] + [object] + list[index:]

Explanation:

a)

The method count takes object and a list as parameters and returns the number of times that object appears in the list.

counter variable is used to count the number of times object appears in list.

Suppose

list = [1,1,2,1,3,4,4,5,6]

object = 1

The for loop i.e. for i in list iterates through each item in the list

if condition if i == object inside for loop checks if the item of list at i-th position is equal to the object.  So for the above example, this condition checks if 1 is present in the list. If this condition evaluates to true then the value of counter is incremented to 1 otherwise the loop keeps iterating through the list searching for the occurrence of object (1) in the list.

After the complete list is moved through, the return counter statement returns the number of times object (i.e. 1 in the example) occurred in the list ( i.e. [1,1,2,1,3,4,4,5,6]  ) As 1 appears thrice in the list so the output is 3.

b)  

The method include takes two parameters i.e. object and list as parameters and returns True if the object is present in the list otherwise returns False. Here i have not named the function as in because in is a reserved keyword in Python so i used include as method name.

For example if list = [1,2,3,4] and object = 3

for loop for i in list iterates through each item of the list and the if condition if i == object checks if the item at i-th position of the list is equal to the specified object. This means for the above example the loop iterates through each number in the list and checks if the number at i-th position in the list is equal to 3 (object). When this if condition evaluates to true, the method returns True as output otherwise returns False in output ( if 3 is not found in the list). As object 3 is present in the list so the output is True.

c) reverse method takes a list as parameter and returns the list in reverse order.

Suppose list = [1,2,3,4,5,6]

The function has two variables i.e. first that is the first item of the list and last which is the last item of the list. Value of first is initialized to 0 and value of last is initialized to len(list)-1 where len(list) = 6 and 6-1=5 so last=5 for the above example. These are basically used as index variables to point to the first and last items of list.

The while loop executes until the value of first exceeds that of last.

Inside the while loop the statement list[first] , list[last] = list[last] , list[first]  interchanges the values of elements of the list which are positioned at first and last. After each interchange the first is incremented to 1 and last is decremented to 1.

For example at first iteration:

first = 0

last = 5

list[0] , list[5] = list[5] , list[0]

This means in the list [1,2,3,4,5,6] The first element 1 is interchanged with last element 6. Then the value of first is incremented and first = 1, last = 4 to point at the elements 2 and 5 of the list and then exchanges them too.

This process goes on until while condition evaluates to false. When the loop breaks  statement return list returns the reversed list.

d) The method index takes object and list as parameters and returns the index of the object/item if it is found in the list otherwise returns -1

For example list = [1,2,4,5,6] and object = 3

for loop i.e.  for x in range(len(list)):  moves through each item of the list until the end of the list is reached. if statement  if list[x] == object:  checks if the x-th index of the list is equal to the object. If it is true returns the index position of the list where the object is found otherwise returns -1. For the above examples 3 is not in the list so the output is -1  

e) insert

The insert function takes as argument the object to be inserted, the index where the object is to be inserted and the list in which the object is to be inserted.

For example list = [0, 1, 2, 4, 5, 6] and object = 3 and index = 3

3 is to be inserted in list  [1,2,4,5] at index position 3 of the list. The statement:

return list[:index] + [object] + list[index:]

list[:index] is a sub list that contains items from start to the index position. For above example:

list[:index] = [0, 1, 2]

list[index:] is a sub list that contains items from index position to end of the list.

list[index:] = [4, 5, 6]

[object] = [3]

So above statement becomes:

[0, 1, 2] + [3] + [4, 5, 6]

So the output is:

[0, 1, 2, 3, 4, 5, 6]    

Explanation:

Answer and Explanation:

The sequential data or sequence data is described as data that come in an ordered sequence. It may also be termed data that is produced from tasks that occurs in sequential order The sequential pattern mining is a critical subject in data mining that has do with applying sequential data to derive a statistically relevant pattern from it.

Sequential pattern mining is a part of data mining. Data mining involves utilizing data from databases to understand and make decisions that better the organization or society as a whole based on this. Common data mining tasks include: clustering, classification, outlier analysis, and pattern mining.

Pattern mining is a kind of data mining task that involves explaining data through finding useful patterns from data in databases. Sequential pattern mining is pattern mining that uses sequential data as a source of data in finding data patterns. Sequential pattern mining applies various criteria(which maybe subjective) in finding "subsequence" in data. Criteria could be :frequency, length, size, time gaps, profit etc. Sequential pattern mining is commonly applicable in reality since a sizeable amount of data mostly occur in this form. A popular type of sequential data is the time series data.

Answer: page orientation

Explanation: