Answer:
a. SQL.
b. Rows and columns.
c. ResultSet objects.
d. Primary key.
e. WHERE.
f. ORDER BY.
g. Joining.
h. Database.
i. Foreign key.
j. DriverManager; getConnection ().
k. Connection.
l. Statement.
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 structured query language (SQL) can be defined as a domain-specific language designed and developed for managing the various data saved in a relational or structured database.
In Computer programming, any word restricted for use, only in object names because they belong to the SQL programming language are called reserved word.
Some examples of reserved words in structured query language (SQL) are UPDATE, GROUP, CURRENT_USER, CURRENT_DATE, WHERE, CREATE, DELETE, ORDER BY, etc.
Filling in the missing words or texts in the question, we have;
a. The international standard database language is SQL.
b. A table in a database consists of rows and columns.
c. Statement objects return SQL query results as ResultSet objects.
d. The primary key uniquely identifies each row in a table.
e. SQL keyword WHERE is followed by the selection criteria that specify the rows to selectin a query.
f. SQL keywords ORDER BY the order in which rows are sorted in a query.
g. Merging rows from multiple database tables is called joining the tables.
h. A database is an organized collection of data.
i. A foreign key is a set of columns whose values match the primary-key values of another table.
j. DriverManager method, getConnection () is used to obtain a Connection to a database.
k. Interface connection helps manage the connection between a Java program and a database.
l. A statement object is used to submit a query to a database.
Which option best describes open source software?
a type of software used to bundle products together
a type of software used to sync up to Windows
a type of software that works well with almost all applications and drivers
a type of software that can be freely used and modified
Answer:
a type of software that can be freely used and modified.
Lucy wants to add some notes in her research paper that provide additional information to the reader. She also wants to display her university logo on all the pages as part of the title. What formatting can she apply to her document to include these details?
What did the police threaten to do?
Answer:
fire?
Explanation:
protocol layering can be found in many aspect of our lives such as air travelling .imagine you make a round trip to spend some time on vacation at a resort .you need to go through some processes at your city airport before flying .you also need to go through some processes when you arrive at resort airport .show the protocol layering for round trip using some layers such as baggage checking/claiming,boarding/unboard,takeoff/landing.
Answer:
Baggage checking/claiming:
Check in at the city airport and check your baggage
Claim your baggage at the resort airport
Boarding/unboarding:
Board the plane at the city airport
Unboard the plane at the resort airport
Takeoff/landing:
Takeoff from the city airport
Land at the resort airport
Takeoff from the resort airport
Land at the city airport
Write a function that simulates the roll of a six-sided dice. The name of the function is rollDice. The function accepts no parameters and returns a pseudorandom int: 1, 2, 3, 4, 5, or 6. Write only the function, not the main program. You may assume that srand() was invoked in the main function. There should not be any cin or cout statements in the function.
Answer:
int rollDice(){
return 1 + rand() % 6;
}
Explanation:
explain the fundamental Components of a Programming Language
can u answer in 8 lines
Answer:
1. Syntax: Syntax is the structure of a programming language which includes rules for constructing valid statements and expressions.
2. Data Types: Data types are used to define the type of data that is stored in a variable.
3. Variables: Variables are used to store data values.
4. Operators: Operators are used to perform operations on variables and values.
5. Control Structures: Control structures are used to control the flow of a program.
6. Functions: Functions are used to group related code into a reusable block.
7. Libraries: Libraries are collections of functions and data structures that can be used in a program.
8. Comments: Comments are used to document code and make it easier to understand.
Explanation:
What is the output of the following code segment?
String[] cs = "Bill Gates and Paul Allen founded Microsoft on April 4, 1975.".split(" ");
System.out.println(cs[6].charAt(5));
Answer:
o
Explanation:
BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST
Answer:
I think the answer is network
hope this helps
have a good day :)
Explanation:
Answer:
Network
Explanation:
HELP PLZZ WILL MARK BRAINLIEST
Answer:
true
value
it conveys your knowledge........
true
true
Explanation:
I also answered your other question too.
Sorry im late
Brainliest??
write flow chart pseudocode and algorithm for a computation that perform balance,interest, withdrawal,in bank for Ethiopia?
Answer:
Flowchart:
Start
Input customer information (name, account number, etc.)
Calculate balance
Calculate interest
Prompt user to enter withdrawal amount
Calculate new balance
Print new balance
End
Pseudocode:
START
// Declare variables
DECLARE customerName
DECLARE customerAccountNumber
DECLARE customerBalance
DECLARE customerInterest
DECLARE withdrawalAmount
// Get customer information
INPUT customerName
INPUT customerAccountNumber
// Calculate balance
SET customerBalance = customerAccountNumber * customerInterest
// Calculate interest
SET customerInterest = customerBalance * 0.05
// Prompt user to enter withdrawal amount
INPUT withdrawalAmount
// Calculate new balance
SET customerBalance = customerBalance - withdrawalAmount
// Print new balance
PRINT customerBalance
END
Explanation:
A memory hierarchy is composed of an upper level and a lower level. Assume a CPU with 1ns clock cycle time. Data is requested by the processor. 8 out of 10 requests find the data in the upper level and return the data in 0.3ns. The remaining requests require 0.7 ns to return the data. Determine the corresponding values for the upper level memory.
Hit rate =
Miss rate =
Hit time =
Miss penalty =
AMAT =
Answer:
Hit rate = 80%
Miss rate = 20%
Hit time = 0.3 ns
Miss penalty = 0.4 ns
AMAT ≈ 3.875 ns
Explanation:
8 out of 10 = 0.3ns. to return data ( also finds data in the upper level )
2 out of 10 = 0.7 ns to return data
a) Hit rate in upper level memory
= 8/10 * 100 = 80%
b) Miss rate
= 2/ 10 * 100 = 20%
c) Hit time in the upper level memory
Hit time = 0.3 ns
d) Miss penalty
This is the time taken by the missed requests to return their own data
= 0.7 ns - 0.3 ns = 0.4 ns
e) AMAT ( average memory access time )
Hit rate = 80% , Hit time = 0.3ns
miss rate = 20% Miss time = 0.7 ns
hence AMAT = (0.3 / 0.8 ) + (0.7 / 0.2 )
≈ 3.875 ns
Need to use Python to create the below function;
''' This function takes as input two lists of same length. It outputs net correlation value between these two lists. To compute correlation between two lists:
1. Compute the average of each list
2. Subtract a list's average from every element in the list (repeat for both lists)
3. Multiply corresponding differences from each list to compute the element-wise correlation
4. Sum all the values from step 3 to compute the net correlation value
Example: [-10,0,10,20],[20,10,10,20] -> 0
def compute_net_correlation(self,data_series_1,data_series_2):
''' #### FILL IN CODE HERE ####
net_correlation = # fill in computation
return net_correlation
Answer:
The function is as follows:
def compute_net_correlation(data_series_1,data_series_2):
series1 = 0; series2 = 0
for i in range(len(data_series_1)):
series1+=data_series_1[i]
series2+=data_series_2[i]
avg_series1 =series1/len(data_series_1)
avg_series2 =series2/len(data_series_1)
for i in range(len(data_series_1)):
data_series_1[i]-=avg_series1
data_series_2[i]-=avg_series2
data_series_1[i]*=data_series_2[i]
net_correlation = 0
for i in range(len(data_series_1)):
net_correlation +=data_series_1[i]
return net_correlation
Explanation:
This defines the function
def compute_net_correlation(data_series_1,data_series_2):
This initializes the sum of each series to 0
series1 = 0; series2 = 0
This iterates through each data series
for i in range(len(data_series_1)):
This adds series 1
series1+=data_series_1[i]
This adds series s
series2+=data_series_2[i]
This calculates the average of data series 1
avg_series1 =series1/len(data_series_1)
This calculates the average of data series 2
avg_series2 =series2/len(data_series_1)
This iterates through each data series
for i in range(len(data_series_1)):
This subtracts the average from series 1
data_series_1[i]-=avg_series1
This subtracts the average from series 2
data_series_2[i]-=avg_series2
This multiplies the corresponding elements of both series
data_series_1[i]*=data_series_2[i]
This initializes the net correlation to 0
net_correlation = 0
This iterates through each data series
for i in range(len(data_series_1)):
This adds up the corresponding elements of both series
net_correlation +=data_series_1[i]
This returns the net correlation
return net_correlation
Write a recursive function
string reverse(string str)
that computes the reverse of a string. For example, reverse("flow") should return "wolf". Hint: Reverse the substring starting at the second character, then add the first character at the end. For example, to reverse "flow", first reverse "low" to "wol", then add the "f" at the end.
Answer:
Explanation:
The following code is written in Java. It creates a function called stringReverse that takes in one string parameter and uses a recursive algorithm to print out the input string in reverse. The output can be seen in the attached picture below.
void stringReverse(String str)
{
//Check to see if String is only one character or less
if ((str==null) || (str.length() <= 1))
System.out.println(str);
else
{
System.out.print(str.charAt(str.length()-1));
stringReverse(str.substring(0,str.length()-1));
}
}
What are examples of the major macro actions? Check all that apply.
A) create new records
B) open and close forms
C) open database objects
D) lock databases from changes
E) prevent users from viewing data
F) navigate through records
G) import and export data
Answer:
A)create new records
B)open and close forms
C)open database forms
F)navigate through records
G)import and export data
Explanation:
Correct on Edge
Hey tell me more about your service. I have a school assignment 150 questions and answers on cyber security,how can I get it done?
Answer:
Explanation:
I have knowledge in a wide range of topics and I can help you with your school assignment by answering questions on cyber security.
However, I want to make sure that you understand that completing a 150 question assignment on cyber security can be time-consuming and it's also important that you understand the material well in order to do well on exams and to apply the knowledge in real-world situations.
It would be beneficial to you if you try to work on the assignment by yourself first, then use me as a resource to clarify any doubts or to check your answers. That way you'll have a deeper understanding of the material and the assignment will be more beneficial to you in the long run.
Please also note that it is important to always check with your teacher or professor to ensure that getting assistance from an AI model is in line with your school's academic policies.
Please let me know if there's anything specific you would like help with and I'll do my best to assist you.
At what point is photo editing too much? What is your opinion? Please answer in 5-7 sentences.
Answer:
Too much photoshop to the point where you start to resemble Kim Kardashian is way too much. Simple men like me enjoy average women. Like makeup, an absurd amount of photoshop will deter most men as they'll find you shallow and fraudulent. More women should start to flaunt their natural beauty. Natural beauty is always a better indicator than excessive photoshop for a good relationship and partner.
Explanation:
How do internet gateway routers help to defend the network from cyberattack?
Answer:
Predict and prevent web attacks before they reach your corporate network or your users – wherever they are. Set up first line defence to protect your most valuable asset – your data.
Explanation:
The best solution at Gateway between the Internet (Public) and the Intranet (Vast LAN/VLAN (Private)) for the intruder detection, drop or deny, stopping spam emails and viruses/malwares, protect from exploiting vulnerabilities, flood a targets in application and communication protocol etc. and a best monitoring, evaluation and analysis tool for the better safeguard. Normally we intend to implement either a software or hardware firewall which enforces a set security policies that needs to be fine-tuned according to the recent advancement and race.
We can take all possible measures for the security of databases servers, web servers, systems servers with a set of inbuilt security mechanism and secure travel of transactions over the net based on encryption & VPN as choices are available.
Assume your sketch has a variable named silo, which stores an object that is defined by a class you have created. The name of the class is Cylinder. The Cylinder class has a method named volume, which calculates the volume of a cylinder using its property values and returns the calculated value. Which line of code is the correct line to use the silo variable, calculate volume, and store that value in a new variable.
a. let v = [silo volume];
b. let v = volume(silo);
c. let v = silo.volume();
d. let v = silo[volume];
e. let v = cylinder.volume(radius, height);
Answer:
c. let v = silo.volume();
Explanation:
When you create and initialize a new object you pass through that object's class constructor. The constructor is in charge of initializing all the necessary variables for that class including radius and height. Once you save the object in a specific variable (silo) you need to call the class methods through that variable, using the '.' command. Therefore, in this scenario, in order to call the volume() method you would need to call it from the silo object and save it to the v variable, using the following statement.
let v = silo.volume();
Grade Average Lab Assignment Purpose: The goal of this lab assignment is to learn how to use for loops and if/else commands. Write a program that will calculate a numeric average and a letter grade for a student. The main method creates an object of the Grades class that sends two parameters to the Grade class constructor: a student name and the grades to be averaged.
//class to test the Grade class
public class GradeTest{
public static void main(String []args){
//create the grades to be averaged
double [] grades = {23, 45, 67, 12.6};
//create an object of the Grade class and
//pass in the necessary arguments to the constructor
Grade grade = new Grade("John", grades);
//print out the results from the Grade object.
System.out.println("Your name is " + grade.getName());
System.out.println("Your average score is " + grade.getAverage());
System.out.println("Your letter grade is " + grade.getLetterGrade());
}
} //End of the GradeTest class
//The Grade class
class Grade {
//create instance variables
private String name;
private double [] grades;
//constructor for the class
public Grade(String name, double [] grades){
//initialize the instance variables
this.name = name;
this.grades = grades;
}
//method to return the name of the student
public String getName(){
//return the name
return this.name;
}
//method to calculate the average of the grades
public double getAverage(){
double [] grades = this.grades;
//initialize some needed variables
double sum = 0;
double average = 0;
//loop through the grades array and add each element to the sum variable
for(int i =0; i < grades.length; i++){
sum += grades[0];
}
//calculate the average
average = sum / grades.length;
//return the average grade
return average;
}
//method the calculate the letter grade from the average
public char getLetterGrade(){
//initialize some variables
double average = this.getAverage();
char letterGrade;
//check the average and determine its corresponding letter grade
if(average >= 40 && average < 45){
letterGrade = 'E';
}
else if(average >= 45 && average < 50){
letterGrade = 'D';
}
else if(average >= 50 && average < 60){
letterGrade = 'C';
}
else if(average >= 60 && average < 70){
letterGrade = 'B';
}
else if(average >= 70 && average <= 100){
letterGrade = 'A';
}
else {
letterGrade = 'F';
}
//return the letter grade
return letterGrade;
}
} //End of the Grade class
Sample Output:
Your name is John
Your average score is 23.0
Your letter grade is F
Explanation:
The code above is written in Java and it contains comments explaining important parts of the code. It also contains a sample output got from running the program. To run this on your machine, copy the code and save in a file named GradeTest.java
Can you incorporate open-source code from a github forum into IP tool?
Answer:
No
Explanation:
Answer: No, Info does not allow the use of open-source components in proprietary software he contracts.
In the flag, the RGB values next to each band indicate the band's colour.
RGB: 11111101 10111001 00010011
RlGB: 00000000 01101010 01000100
RGB: 11000001 00100111 00101101
First, convert the binary values to decimal. Then, to find out what colours these values correspond to, use the Colour names' handout (ncce.io/rep2-2-hw) or look up the RGB values online. Which European country does this flag belong to?
Answer:
To convert the binary values to decimal, you can use the following steps:
Start with the rightmost digit and assign it the value of 0.
For each subsequent digit moving from right to left, double the value of the previous digit and add the current digit.
For example, to convert the first binary value, 11111101, to decimal:
10 + 02 + 04 + 08 + 016 + 132 + 164 + 1128 = 253
So the first binary value, 11111101, corresponds to the decimal value 253.
Using this method, you can convert the other binary values to decimal as well. To find out what colours these values correspond to, you can use the Colour names' handout or look up the RGB values online.
To determine which European country this flag belongs to, you can try looking up the colours and seeing if they match any known flags. Alternatively, you could try searching for flags of European countries and see if any of them match the colours you have identified.
An airline describes airfare as follows. A normal ticket's base cost is $300. Persons aged 60 or over have a base cost of $290. Children 2 or under have $0 base cost. A carry-on bag costs $10. A first checked bag is free, second is $25, and each additional is $50. Given inputs of age, carry-on (0 or 1), and checked bags (0 or greater), compute the total airfare. Hints: First use an if-else statements to assign airFare with the base cost Use another if statement to update airFare for a carryOn Finally, use another if-else statement to update airFare for checked bags Think carefully about what expression correctly calculates checked bag cost when bags are 3 or more
Answer:
The program in Python is as follows:
age = int(input("Age: "))
carryOn = int(input("Carry on Bags [0 or 1]: "))
checkedBags = int(input("Checked Bags [0 or greater]: "))
airFare = 300
if age >= 60:
airFare = 290
elif age <= 2:
airFare = 0
if carryOn == 1:
airFare += 10
if checkedBags == 2:
airFare += 25
elif checkedBags > 2:
airFare += 25 + 50 * (checkedBags - 2)
print("Airfare: ",airFare)
Explanation:
This gets input for age
age = int(input("Age: "))
This gets input for carry on bags
carryOn = int(input("Carry on Bags [0 or 1]: "))
This gets input for checked bags
checkedBags = int(input("Checked Bags [0 or greater]: "))
This initializes the base cost to 300
airFare = 300
This updates the base cost to 290 for adults 60 years or older
if age >= 60:
airFare = 290
This updates the base cost to 0 for children 2 years or younger
elif age <= 2:
airFare = 0
This updates the airFare if carryOn bag is 1
if carryOn == 1:
airFare += 10
if carryOn bag is 0, the airFare remains unchanged
This updates the airFare if checkedBags is 2. The first bag is free; so, only the second is charged
if checkedBags == 2:
airFare += 25
This updates the airFare if checkedBags greater than 2. The first bag is free; so, only the second and other bags is charged
elif checkedBags > 2:
airFare += 25 + 50 * (checkedBags - 2)
if checkedBags is 0 or 1, the airFare remains unchanged
This prints the calculated airFare
print("Airfare: ",airFare)
Which of the following does NOT pair the statement with the corresponding output?
The statement that does not pair with the corresponding output is system.out.printin (a + b+ c). The correct option is statement A.
What is the output?Output is any information processed by and sent by a computer or other electronic device. Anything visible on your computer monitor screen, such as the words you write on your keyboard, is an example of output.
Outputs can be text displayed on the computer's monitor, sound from the computer's speakers, or a physical output such as a printed sheet of paper from a printer connected to the computer.
Therefore, the correct option is A, system.out.printin (a + b+ c).
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one example of FLAT artwork is tagged image file format which is a common computer what file
One example of FLAT artwork is the Tagged Image File Format (TIFF). TIFF is a common computer file format used for storing raster images.
What is the image file format about?It is a flexible format that can support a wide range of color depths and image compression methods. It is often used for high-quality images, such as those used in printing, and is supported by a wide range of image-editing software.
Therefore, based on the context of the above, TIFF files are FLAT artwork as they are a single, static image without any animations or interactivity.
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Shortcuts will help you complete spreadsheet tasks more efficiently. Select each of the following that is a shortcut.
Answer:
https://quiz let.com/331278088/excel-exam-1-flash-cards/
Explanation:
delete the space in quizlet
6.11 LAB: Sort a vector
Write a program that gets a list of integers from input, and outputs the integers in ascending order (lowest to highest). The first integer
indicates how many numbers are in the list. Assume that the list will always contain less than 20 integers.
Ex: If the input is:
5 10 4 39 12 2
the output is:
2 4 10 12 39
For coding simplicity, follow every output value by a space, including the last one.
Your program must define and call the following function. When the SortVector function is complete, the vector passed in as the parameter
should be sorted.
void SortVector(vector int>& myVec)
Hint: There are many ways to sort a vector. You are welcome to look up and use any existing algorithm. Some believe the simplest to code
is bubble sort: https://en.wikipedia.org/wiki/Bubble_sort. But you are welcome to try others: https://en.wikipedia.org/wiki/Sorting_algorithm.
290064 1698536.qx3zqy7
The sort a vector program is an illustration of functions, loops and vectors or lists.
The main programThe program written in C++, where comments are used to explain each action is as follows:
#include<bits/stdc++.h>
using namespace std;
//This defines the SortVector function
void SortVector(vector <int>& myVec){
//This sorts the vector elements in ascending order
sort(myVec.begin(), myVec.end());
//This iterates through the sorted vector, and print each element
for (auto x : myVec)
cout << x << " ";
}
//The main begins here
int main(){
//This declares all the variables
int num, numInput; vector<int> v;
//This gets the length of the vector
cin>>num;
//The following iteration gets input for the vector
for(int i = 0; i<num;i++){
cin>>numInput;
v.push_back(numInput);
}
//This calls the SortVector function
SortVector(v);
return 0;
}
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Can someone write an essay on data storage and describe the different storages I have listed below•
Hard drive disk
floppy disk
tape
compact disk
dvd and blu-ray
usb flash drive
secure digital card
solid state drive
cloud storage
punch card
...
.
.
. This is worth 100 points!!!
I really need this!
Answer:
Explanation:
Punch card is the oldest computer storage; followed by tape and then floppy disk. Hard drive goes back as far as floppy but is still in use today. CD/DVD/BR discs are all later storage but are also used for storing music and videos. USB flash, SD card, SSD and cloud storage are the common technologies used today for data storage.
Answer:
Explanation:
the other answer talks about when the different storages were used; here are their capacity comparison; in increasing order:
punch card - one hole represents 1 bit
tape - slightly more w/ 0/1 represented by sound
floppy disk - more as 0/1 represented by magnetics
hard drive - also magnetics but capacity ranges from okay (in MB) at the beginning to enormous (in TB) currently
CD - beginning to be okay but still under 1 GB
DVD and BR - better 5-28GB
USB/SD/SSD - good; all in 10s to 100s of GB
cloud storage - UNLIMITED!
Explain in detail the most important technology term outlined
Answer:
Technology can be most broadly defined as the entities, both material and immaterial, created by the application of mental and physical effort in order to achieve some value. In this usage, technology refers to tools and machines that may be used to solve real-world problems.
Hope it help!:)
Technology is the use of science and engineering in making life easy.
Answer :
Technology
It is defined as the application of the technical knowledge and scientific knowledge which helps in doing certain processes and studies.
Technology is used in practical purposes using the applied sciences or engineering.
Technology is used in the field of engineering, industries, medicals, space and in many more applications.
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_______ is the assurance that you can rely on something to continue working properly throughout its lifespan.
A) Reliability
B) Raid
C) P/E cycle
D) MTBF
Question 2
1 pts
Which of the following is true about main and secondary memory?
O Main memory is short term memory used by the CPU in processing commands,
secondary memory is more permanent and used for storage.
Secondary memory is lost when the device's power is turned off.
Main memory is more permanent and used for storage, secondary memory is short
term memory is used by the CPU in processing commands.
Main memory is used for storage.
Answer:
Main memory is short term memory used by the CPU in processing commands,
secondary memory is more permanent and used for storage.
Explanation:
Main memory defines ur ram.
Secondary memory defines your hard drives etc.