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Databases Questions and Answers October 14, 2020

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Consider the following instance variable and incomplete method.The method sum() should sum up all of the values in array. private double [] array; //assume the array contains values public double sum() { double sum = 0; /* code */ return sum; } Which of the following code segments shown below could be used to replace /* code */ so that sum will

Questions on shift and rotate Isra= logical shift right. rora= rotate right asra = arithmetic shift right 9)[A]=$BD, execute Isra. Please tell [A] =? 10)[a]=$EB, and carry bit =1; execute rora, please tell [A]=? 11)[A]=$CF, execute asra. Please tell [A]=? 12) HCS12 provides rotate instructions for 8- bit data only, draw a figure to show the
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carbon hydrogen Oxygen 12.0110 1.0079 15.9994
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Lifting up state is: Transferring data from child to parent component. It is derived with the help of props. Transferring data from child to parent component. It is derived with the help of state. Transferring data from parent to child component. It is derived with the help of state. Transferring data from parent to child component. It is derived

Consider the following algorithm: MERGE-SORT(A) 1 if length[A] == 1 2 return A 3 else 4. q+ [length[A]/2] 5 create arrays L[1...) and Rq +1.. length[A]] 6 copy A[1..] to L 7 copy Alq + 1.. length[A]] to R 8 LS - MERGE-SORT(L) 9 RS + MERGE-SORT(R) 10 return MERGE(LS, RS) MERGE(L, R) 1 create array B of length length [L] + length[R] 2 it1 3j+1 4 for
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A tunnel is a virtual, private pathway over a public or shared network from the virtual private network ( VPN ) client to the VPN server. A tunnel is a virtual, private pathway over a public or shared network from the virtual private network ( VPN ) client to the VPN server. True False

SOLVE IN RACKET 1. divisible-by-7? Define your own Racket function that takes a single integer as an argument and returns a Boolearn that indicates whether the number is evenly divisible by 7. You do not have to perform error checking on the input. Input: An integer Output: A Boolean. Example > (divisible-by-7? 14) #t > (divisible-by-7? 31) #f >
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Which of the following would be LEAST helpful in identifying whether an email is a phishing attempt? The email's domain name is spelt incorrectly e . g . @mikrosoft.com The email contains some spelling errors The email has an unknown . exe file attached
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Draw the sequential circuit for a vending machine that takes just dimes and the snacks cost 20c. -draw state diagram - draw state table

*******Java********** Yahtzee.java This class represents the Yahtzee game in which there are 5 rolled dice and the scoring is performed. This class is much longer and more complex than the Dice class. The class must have the following private variables: dice (Dice[ ]) The class must have the following public methods: public Yahtzee() [constructor]

Using a user-defined function, write a Python program that determines the index of the maximum entry of an array of arbitrary size and its corresponding value. Have your program print out the matrix, the index of the maximum value, and the value of the entry at that index. Test your code twice, using the two matrices given below. 70.5 6.6 0.7 1 3
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What would the maximum value of the light sensor be in the real world? 255 511 1023 2047
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Java supports multiple inheritance, meaning that a class can have more than one direct parent. True False A private instance data variable in a parent class is directly accessible in the child class. True False he instruction super(); does which of the following? calls the default constructor in the current class calls the default constructor in

Someone please comment and make this a flat catalog schema please

A multi - valued variable Group of answer choices a book a table an array a struct

\ Sigma = { 0 , 1 } . The \ epsi belongs to \ Sigma . true or false

Use SSMS to complete the following steps: Step 1 : Create a new database and name it Inventory Step 2 : Use SQL CODE to create the Tables listed in the Attached File ( Show me the tables in the left margin ) Step 3 : Create Database Diagram Step 4 : Use SQL code to INSERT the data in each table ( Show me the top 1 0 0 0 rows in each table ) Step 5
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In python I cant stress this enough! You will be provided with a comma delimited file called DirtyNames.csv this file consists of thousands of names that are horribly formatted and must be cleaned up. A clean name is all lower case letters except the first letter which must be capitalized. In addition, some of the names have symbols or other
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write code in python normalize_binary(bin): Takes the binary for the floating-point number and returns the mantissa/fraction and exponent. >>> def normalize_binary(n): ** Your Code ** >>> normalize_binary (1010101.001) Mantissa: 010101001 exponent: 6 calculate_biased_exponent(expo): Takes the exponent from normalized representation and returns the
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Question 7 1 pts In C++, what expression can be utilized in order to allocate memory in a program for an array type? new delete new[]0; delete[]0; Question 8 1 pts What operator can be utilized to obtain the value of a pointer in C++? O
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10. Word Find A popular diversion in the United States, word find (or word search) puzzles ask the player to find each of a given set of words in a square table filled with single letters. A word can read horizontally (left or right), vertically (up or down), or along a 45 degree diagonal (in any of the four directions) formed by consecutively

Question 1 6 In the machine cycle, decoding is the process of obtaining a program instruction or data item from memory. True Falsch
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Modify the project below: #include #include / / Author: Nhu Phan / / This program checks the validity of user input based on specific conditions. / / The input is valid if all alphabetic letters are lowercase, and non - alphabetic letters are limited to digits, whitespace, exclamation point, question mark, or period. int main ( ) { / / Declare

Please help. The code must be in C programming language (not C ++ or java etc) Consider this data sequence: "fish bird reptile reptile bird bird bird mammal fish". There is a CONSECUTIVE REPETITION of length 3 (the three consecutive birds) and a CONSECUTIVE REPETITION of length 2 (the two reptiles). There are also several SINGLETONs of length 1 (a

1) Draw Use case or Use case diagram for requirement analysis. 2) Provide succinct and explicit description for your diagram in the previous question. title of project= Restaurant Automation

Support the thesis that the growth hacking (data driven) movement as a new mix of marketing and computer skills respect the privacy of users. ( Please give 3 arguments for this thesis and few lines to support evidence thx)

What makes wireless networking a viable alternative to traditional wired networking? When is it not a viable alternative to wired network

One drawback of a well - design ERP system is an increase in inventory costs. Select one: True False

Translate into predicate logic. 2. [9 marks] At the time of writing this question, it is not yet known whether or not TY is the champion at IEM Katowice 2021. Nonetheless, consider the following domain and predicates: K: the domain of inhabitants of the Koprulu sector of the Milky Way galaxy; T(m): inhabitant x belongs to the Terran race; Z(2):
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____________________ helps predict (based on data and statistical techniques) with confidence what will happen next so that you can make well-informed decisions and improve business outcomes.

please help me show detail steps! thanks in advance!! Part 2: Number and Number Tester Number class This class is supposed to keep track of two different numbers which are doubles. 1. Create a constructor that has two doubles as parameter variables. 2. Do NOT create the no-argument constructor 3. Create instance methods that will calculate and
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mming Exercise 7-5 Instructions countWords java+ 1 tnport java.uttl.* 2 public class Counthords [ 8 public static void main(S Write an application that counts the words in a string entered by a user. Words are separated by any combination of spaces, periods, commas, semicolons, question marks, exclamation points, or dashes. Figure 7-17 shows a
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Which messages are exchanged between a wireless station and an Access Point to create an association? Select two. Question 1 4 options: A Wireless Station sends an Association Request and the AP sends a Response A Wireless Station sends Authentication Request and the AP sends a Response An Access Point sends an Association Request and the Wireless

List at least three unique characteristics of an abstract class

Suppose you have an object made up of two w-bit integers, x and y . Show why x+y does not make a good hash code for your object. Give an example of a large set of objects that would all have the same hash code. c++ and provide good comments.

Problem 3 Prove that the multiplication of an n - bit binary number A and an m - bit binary number B gives a product A \ times B of no more than n + m bits.

For each of the following languages defined over = {0,1}, provide a CFG that generates that language. L1 = {w | w = w R}, where w R is the reverse of word w. L2 = {0 n1 2n |n 0}. L3 is the set of words that contain twice as many 1s as 0s.

Suppose we have a byte - addressable computer using fully associative mapping with 2 4 - bit main memory addresses and 3 2 blocks of cache. If each block contains 3 2 bytes, the size of the block field is bits and the size of the offset field is bits. All answers must be expressed in decimal.
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Question - 4 : For the 8 - bit word 1 0 1 0 1 1 0 0 , the check bits stored with it would be 0 1 1 1 . Suppose when the word is read from memory, the check bits are calculated to be 1 0 1 1 . What is the data word that was read from memory? Marks 8
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11. Implement the Tic-Tac-Toe game in C++ using functions and 2D array of 3X3 size. Rules of the Game The game is to be played between computer and user. One of the player chooses O and the other X to mark their respective cells. The game starts with one of the players and the game ends when one of the players has one whole row/ column/ diagonal

EXERCISE Consider a relation R(ABCDEFGHILU) with the following set of functional dependencies 1. Is CDE a superkey of R (wrt G)? 2. Is CDE a key of R (w.rt G)? 3. Apply the appropriate algorithm to determine a key for R (w.rt. G) 4. Apply the appropriate algorithm to determine all the keys for R (w.rt. G). 5. Determine the prime attributes of R 6.
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Thinking Critically about Careers Research Paper: Getting Started Review the Library Guide in the Learning Activities section of this Module. This guide includes: Research recommendations and sources How to determine if your source is reliable APA Style Guide Start researching careers in Information Technology that interest you. As you are

What appears when you rest the pointer over one or more marks in the view? Tooltip Label Action Filter

I really need help creating this program on c++!!!! You will be creating a program that calculates a fleet's car and truck miles per gallon. Create a program that continually asks for a command, which will be "car", "truck", or "done". If the user does not specify one of these commands, output "Unknown command." If the user types "done", calculate

A healthcare enterprise has implemented role - based access controls for its users on systems that manage patient data. Which of the following statements best describes how the control reduces risk to the enterprise? Does it mainly protect from internal or external data breaches?

A Simple Calculator Write a Java program that provides the following functions of a Calculator: - Addition+ - Subtraction Multiplication * Division For example: User enters 10+20 And the program outputs 30
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Dashboards can be presented at all the following levels EXCEPT the visual cube level. the static report level. the self - ser cuce cube level. the visual dashboard level.
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When looking into the extended entity relationship model ( EERM ) , which of the following statements is not valid about entity supertypes and subtypes?

I need help with C++ programming, I only need help with deleteMovie function Program Specifications Add the following functionality to your Assignment 5 Binary Search Tree implementation: 1. Delete a movie. When the user selects this option, they should be prompted for the title of the movie to delete. Your code should then search the tree for

Email viruses are typically launched by people who modify header information to hide their identity. Brightmails Enrique Salem says that in the future, your email reader will authenticate the sender before putting the message in your inbox. That way, you will know the source of all the emails you read. Alan Nugent of Novell says, Im kind of a fan

Question 1 (1 point) if T(n) 5n2 + 7n, then T(n) is () O2(n) ON(log n) All of the above
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Please answer to the full question and completely 8-bit Floating Point. 17. Assume an 8-bit floating point format where the result must be properly represented (where possible). Our 8-bit format uses the first bit for a sign, the next 4 for an exponent (bias=7) and then 3 for the fraction. 10 marks total Convert the following into base 10 (or if
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could someone please help me with this question. im really struggling! Elyas: Attempt 1 Question 9 (1 point) Circuit Three a b R1 M 40kg R3 VW 36.5k V1 75V SR2 60k 13 R4 I. 2.7k02 R5 56.30 The calculated value for Circuit Three's It is: 1.183 mA 1.875 mA 0.857 mA 30 mA
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C++ programming Instruction: 1, Please don't copy other Chegg answers, I need a new answer. 2, Use the following code(homework 5) to do the question in homework 6. 3, I will upload my answer for homework5 but fill free to make any change to the code. 4, Screenshot the outcome when returning the answer. The code for homework 5 is below #include
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Description: Your task is to implement the "Rock-Paper-Scissors game in Java. You must first display a nice game title and ask the user for their name. The computer must randomly choose 0, 1 or 2 (0 = Rock; 1 = Paper; 2 = Scissors). The user must be allowed to choose 0, 1 or 2 (0 = Rock; 1 = Paper; 2= Scissors). Your program must display each
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What is the ending value of myStr ? char mystr [ 5 ] = " Hi " ; strcpy ( mystr , "Hey" ) ; H i Hey HiHey Hey i
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Description- Data Sets: NASDAQ Exchange Daily 1970-2010 Open, Close, High, Low and Volume Download links: NASDAQ_dividends_A.csv (Links to an external site.)Links to an external site. NASDAQ_daily_prices_A_sample.csv (Links to an external site.)Links to an external site. Summary of data: There are two types of data File name starting with

A classic example of _ _ _ _ _ _ _ _ switching is the telegraph.

Please use matlab and explain your answer. The starting altitude from the time of the jump is 4000 m. During his or her vertical descent, a skydiver will also usually be travelling a horizontally. This horizontal velocity is met with air resistance, just as the vertical velocity is. To be more explicit, there is a horizontal speed during every
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(3 marks) (Convertion to CNF) Convert sentence (X AY) #-W to conjunctive normal form. 1 (a) Trace execution of getCnf() algorithm with an execution tree in the format illustrated in lectures, To sim- ply labels, show each call of getCnf(s) as gc(s), where s is the sentence to convert, and omit algorithm line numbers. Show the sentence returned by
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Autonomy seems to be a theme in this chapter. What are the ethical issues relating to autonomy for the surrogate mother ?

Consider eBay and its primary and original business. Which type of business model does eBay represent? Affiliate Auction Comparison Bit Vendor
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C++ Programming: from problem analysis to program design, Chap 13 programming exercise #19. Develop this programming exercise in two steps. In the first step (part a), design and implement a stock object. In the second step (part b), design and implement an object to maintain a list of stocks. a. (Stock Object) Design and implement the stock

Students are required to compare both the Operating systems based on their own unique features and characteristics like origin, licensing, file system, accessibility, GUI applications.Students must use example screenshots of respective operating system to justify their answers.List at least 8 ways to compare these Operating systems. Compare

Write simple c++ program to display name and age of a person

Compare and contrast five clustering algorithms, assigned by the instructor or selected by the student.

Part 1 Examine the pseudocode sample provided, and explain what it does line by line. Click here to access the sample. Note that this example is built on top of the one provided in week 2. Unit 3 Pseudocode Sample Description: This logic applies a discount on an item unless the discounted price is less than the whole sale price Program:

Write a program with a for loop and range function which performs the following task: ( 1 ) ask the user to enter a positive integer. ( 2 ) calculate the sum of all sequential integer numbers between 1 and the user - entered number ( inclusive ) . [ Run your program in Python IDLE to verify if it works correctly as described above ]
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Company ABC that trades stocks as part of its business has two locations: one in NYC and one in Chicago. These two locations are connected using a WAN link with a transmission rate of 6 Mbps. Refer to the network diagram provided with the quiz. A business critical stock application, (Stock Streamer), runs on a server connected to the LAN at the
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it fails to display the vector table int readTable() { int row, col; char col_c; ifstream fin("lines.txt", ios::in); // Read in the file into I while (fin >> row) // per row fin >> col_c; col = convert(col_c); // to a slot number vector v; // a vector to fill char c; // one char from the file // ** Fill v with chars from the file (a for loop) for
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Use the Zelle graphics.py library, Python code covered in this course and data structures covered in this course to solve the following problem: "GO Burger!" is a new 'burger-to-go' establishment who requires an app for customers to place their orders. The establishment only accepts online orders and pick-up...there is no sit-down service

4. Draw a sequence diagram for purchasing a pop from a vending machine, given the following assumptions: .The objects in the system are the user, the dispenser (releases cans of pop), the display (shows amount of money entered and other messages), and the controller (receives coins, issues change, sends orders to the dispenser and updates the
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Please code in MATLAB 3.6. Let A be a real matrix of size m xn. 1. What condition should A meet for the function 2 ||Ax ||, where ||.|| denotes some norm on R", to be a norm on R? Write a function NormA that computes || A.c||2 for x ER". 2. Assume A is a square matrix. Write a function NormAs that computes (Ax, x) for x ER". Does this function
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Please write in C++ in Microsoft Visual Studio 2015! In statistics, the mode of a set of values is the value that occurs most often or with the greatest frequency. Write a function that accepts as arguments the following: A. An array of integers B. An integer that indicates the number of elements in the array The function should determine the mode
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Numerical Analysis, 9th ed Burden. Use Strictly the next algoritm to make Steffensen's method code in Python: The Output of the Python program should be like this: 11. Use Steffensen's method to approximate the solutions of the following equations to within 10-5 c. x= (*/3)2, where g is the function in Exercise 11(c) of Section 2.2. ALGORITHM 2.6
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what is the main importance of performing a security categorization

CSAPP3 Problem 11.6 Parts A, B, C A. Modify Tiny so that it echoes every request line and request header. B. Use your favorite browser to make a request to Tiny for static content. Capture the output from Tiny in a file. C. Inspect the output fromTiny to determine the version ofHTTPyour browser uses.

Hadoop has two main features that have made it the industry standard for handling big data. Research this tool on the web and explain those features to the class. Now that you have your own Arduino kit, what will you create?

Propose and briefly explain THREE ( 3 ) main functions based on Appendix 1 . From the proposed function in Q 1 , prepare only ONE ( 1 ) flow chart or activity diagram. Develop the following diagram based on the proposed functions in Q 1 : a . ONE ( 1 ) Complete Use case diagram b . Choose ONE ( 1 ) use case and come out with the use case scenario
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Part a is pretty easy, I'm mainly concerned about part b which I have no idea how to approach. Thanks! 2. Alternating glasses a. There are 2n glasses standing next to each other in a row, the first n of them filled with a soda drink and the remaining n glasses empty. Make the glasses alternate in a filled-empty-filled-empty pattern in the minimum
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give a regular expression using JFLAP for the language of strings over {a,b} in which each substring of length 2 contains two distinct charecters.

Design, implement and test a Java application that will validate passwords. For this project, a valid password is defined as 1. 6 or more characters (long). Each password must include - a. 1+ (one or more) numeric character b. 1+ uppercase alphabetic character c. 1+ lowercase alphabetic character d. 1+ special character e. At most (no more than) 2

Under which of the following contention loads does traditional synchronization become faster than CAS - based synchronization? A . uncontended B . moderate contention C . high contention D . none of the above

Discuss the general principle of exception handing in object - oriented programming.
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Impac, Economic Developmen: how did technological innovations have contributed to diversifying the economy of Saudi arabia beyond oil, focusing on sectors like renewable energy, tourism, and digital infrastructure. Societal Impact: Analyse the effects of technological advancements on education, healthcare, and urban living in KSA. Include examples

For each of the following iterations, write just enough code to pass the test... while meeting the principles of TDD. Include the code for each iteration and indicate if it 1) compiles and 2) passes the test Iteration 1 - Example public void testPrimeNumber() { MyNumber n = new MyNumber(); W/You include this after every iteration. import static
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In PostgreSQL, what does the VACUUM command do ? Reorganizes physical storage of table data Reclaims lost storage space on a table Reports statistics about a table Reconstructs table rows and compacts data
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Create a PHP input form and results page for coding exercise 2 part (Get Financial Report)and a JSP page for Part (Input Grades). All output data values may be hard-coded(no database or files required.
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fundamentals of database systems textbook

This project is based on an open source Node.js application posted at: http://socket.io/get-started/chat/. Your job is to modify the index.js page so that the app will have two new features: Whenever someone joins or leaves the room, a message will be displayed to all users. Instead of having a username, each user is assigned a socket generated

In LC - 3 , the width of memory is the same as the width of the registers.

please solve it quickly......................... Project Title: Fake currency detection of US using Image processing. 1)Use image Processing 2)use python or MATLAB application. 3)Teacher give us multiple currency picture je 100 dollar ,1 dollar,50 dollar etc. Example 9:31 Fake Currency Recognition Using Image Processing Browwe put Pc By Mr. Rohan
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Q2: Write a program to find & print sum of matrix a[3][4]? 11 9 3 15 2 12 8 16 A= 7 10 9 13
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(5] Let the alphabet S = {0, 1, 2, 3, 4, 5,6,7,8,9}. L is a language over , where L = {w the value of w (treated as a decimal number) is a power of 2}. For example, 2(2), 4(22), 8(23), 16(24), 32(25) are in L. Design a grammar to generate L with an explanation of your logic. What is the type of your grammar (Regular, Context-free, etc.)? Is L a
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A company has offices in Honolulu, Seattle, Ogden, and Dublin, Ireland. There are transmission links between Honolulu and Seattle, Seattle and Ogden, and Ogden and Dublin. Seattle needs to communicate at 1 Gbps with each other site. Seattle and Dublin only need to communicate with each other at 1 Mbps. Ogden and Dublin need to communicate at 2

A widget manufacturer has installed new network servers, changing its network from a peer-to-peer network to a client/server-based network. The network consists of 300 users who make an average of $18 an hour, working on 150 workstations. Previously, none of the workstations involved in the network had anti-virus software installed on the

Q 2 : Generate two random array with 1 5 . 0 0 0 and 5 0 0 . 0 0 0 integer elements respectively. Sort the each array with Q 1 methods. Compare the running time of the algorithms. ( You must use same array for all methods * Coding language: Select C
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If there are more than 3 dimensions, how might this affect networking and communications?

JAVA Java Thank you. Write a method named sumCalc that takes in two double parameters and returns the sum of those two numbers. For example, if you had the following call to your sumCalc method: public class Meth2 { public static void main(String[] args) double number suncalc(2.5, 3.6); System.out.println("Returned value: + number); } // Your
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