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Databases Questions and Answers September 03, 2020

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JAVA Write a class Person.java that acts as a person with Strings to hold their name and address. This class should also contain: A constructor, Person(String name, String address) Getters and Setters for name and address, respectively. String getName() void setName(String name) String getAddress() void setAddress(String address) In addition, you

Using Python 3: Write some code that repeatedly reads a value from standard input into the variable response until at last a Y or y or N or n has been entered.

Let G = (V, E) be a connected undirected graph with positive edge weights. Assume that all edge weights are distinct. For any edge e E, let T(e) denote the spanning tree of G that has minimum cost among all spanning trees of G that contain e. Design an efficient algorithm that takes as input the graph G and an edge e E and outputs T(e). The

1. Please use c++ for the following question. 2. PLEASE SHOW ALL OUTPUT. 3. Write CppUnitLite tests to verify class functionality. 4. Define a class CharQueue with the public interface: class CharQueue { public: CharQueue(); CharQueue(size_t size); CharQueue(const CharQueue& src); // copy constructor void enqueue(char ch); char dequeue(); bool

Does a table or a dot plot give us more informstion abiht a business cycle?

Which of the following is a set: ( Select all that apply ) The following checkbox options contain math elements, so you may need to read them in your screen reader's reading or browse mode instead of forms or focus mode. Choice 1 of 5 :the A in the statement in x in A Choice 2 of 5 :the x in the statement in { 1 , 2 , 3 } x in { 1 , 2 , 3 } Choice

What type of device is a scanner in the context of computer hardware?

Suppose under current directory there is a sub - directory lab 6 a . which of the following command ( s ) displays the permissions of this sub - directory? Time left 0 : 2 1 : 4 6 Select one or more: Is - Id lab 6 a cat lab 6 a chmod lab 6 a Is - l lab 6 a: Is 4 - d lab 6 a is - 1 5 lah 6 a
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what are the varios methods to mitigate : a- multipath errors in L1 b- Iondospheril errors in L1 in pseudoranges and carrier please, give equations for the answer

need quuckly (a) Find the 15-bit binary number of 12342. (2 Marks) (b) Hence find 16-bit representation of -12342. (1 Mark) (c) Perform the binary operation 11010112 -10111012. (2 marks)
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Explain why the F function in DES is not invertible and also why it does not need to be invertible
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2 4 . According to the Law of Independent Assortmentwhat happens when eye color is passed down from the mother and hair color is passed down from the father?

1. A Gray code synchronous counter is often used in state machine design. This problem requires a six-state Gray code counter. The usual Gray code sequence is not used because the sixth state would not be Gray when the counter returns to zero. Instead, the sequence shown in Figure 20-4 is required. There are two unused states: state 5 and state 7.

Subject: Data Communication Topic: Multiplexing Question: Four channels are multiplexed using TDM. If each channel sends 100 bytes /s and we multiplex 5 bits per channel. i. Show the frame (at least three) traveling on the link with arbitrary data ii. The size of the frame

Use MATLAB to create the following matrices: B= Evaluate the following using MATLAB: a. Z = AXBXC b. Z c. 2-1 Problem 6: 15 points) In MATLAB, define a matrix A as: A = [1 2 3; 4 5 6; 789) Change the entries of the second row of A to:[0-11 52] (1.e., replace [4 5 6] by (0-11 52]). Problem 1: Evaluate the following using MATLAB a. sin? (21x50) 1/50
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Laptop Theft Countermeasures In 2006 a laptop in custody of a data analyst was stolen that contained personal and health data of about 26.5 million active duty troops and veterans. The resulting class action lawsuit cost the United States Department of Veterans Affairs $20 million. According to The Cost of a Lost Laptop , a 2009 study by Ponemon

igh - level pseudocode describing a Turing machine can access arbitrary points in memory.

TASK-2 Enter a number and check if the number entered is positive or negative. Use a subroutine to print # subprogram: PrintString # purpose: To print a string to the console # input: $a0 The address of the string to print. # returns: None + side effects: The String is printed to the console. .text PrintString: addi $v0, Szero, 4 syscall jr Sra
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implement a binary heap in c program based implementation of Dijkstras algorithm to support a toy application in which a traveler walks around a graph starting from a user-specified start vertex and with a target destination (also user-specified) in mind. From the users point of view, vertices are identified by strings (internally, your code will

Which concept best describes mapping data in Excel? creating an aggregate Incorrect Aggregation can be used to summarize the results of a data set. creating a data dictionary creating an array
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please do it correctly 2. A computer system contains a main memory of 32KB. It also has a IKB cache divided into two-lines/set with 8Bytes per line. 20 Assume that the cache is initially empty. The processor fetches words from locations in order: 4098, 2052, 2051, 1026. 4097. (5x4) 4096, 2050, 2049.2048, 1025, 1024 in that order. Assume an LRU is
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Write a program with a class to play Tic-Tac-Toe. Here is the structure of the program: Create a char type named constant named NOBODY with a value of '\0'. Create 9 char fields initialized to '1' through '9' Create a player field initialized to 'X' Create a play field initialized to NOBODY Create a winner field initialized to NOBODY Create an

DataBase , please help , i have no time it's with SQL Q7: Write down the INSERT query to add the following records in Customer table. Table name: CUSTOMER CUSCODE CUS LNAME CUS FNAME CUS INITIAL CUS AREACODE CUS PHONE 10010 Ramas Althed 615 B4L-2572 10011 Dunne Leona K 713 894-1238 10012 Smith Ky w 615 094-2285 10013 Olows Paul 615 894-2189 F
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Read the above passage and then answer short questionsWhat is the research tool or platform used in this paper? Application Research Based on Machine Learning in Network Privacy Security Abstracts the hottest frontier technology in the field of artificial intelligence, achine learning is subverting various industries step by step. In the future,
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Download the file prime.py, which contains the function isprime that checks if a number is prime. We disscussed this function in class. Copy this function into your file. Here is the Goldbarch Conjecture: Every even natural number greater that 3 is the sum of 2 primes. 1) write a function that takes an even number as input and either prints out a
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This program should be designed and written by a team of students. Here are some suggestions: One student should design function main, which will call the other functions in the program. The remainder of the functions will be designed by other members of the team. The requirements of the program should be analyzed so each student is given about

Assume that the exponent e is constrained to lie in the range 0 e X, with a bias of q, that the base is b, and that the significand is p digits in length. a. What are the largest and smallest positive values that can be written? b. What are the largest and smallest positive values that can be written as normalized floating-point numbers?

To prevent modification of a built-in array's values when you pass the built-in array to a function __________ A copy of the built-in array must be made inside the function. The built-in array parameter can be preceded by the const qualifier. The built-in array must be declared static in the function. The built-in array must be passed by
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Problem 2 (6pt). Prove the identity of each of the following Boolean equations, using algebraic manipulation a) XY +XY +XY-X +Y b)AB + BC + AB + BC = 1 c) Y+XZ + XY = X + Y + Z
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list the functions of the HC 1 2 timer and the default

If certain conditions are fulfilled, counting sort can sort in linear time. Construct a sequence A[a1,,a2,. . . . .,a10] = of n = 10 numbers where counting sort needs O(n^5 ) time. Explain your choice.

Golf scores record the number of strokes used to get the ball in the hole. The expected number of strokes varies from hole to hole and is called par ( possible values: 3 , 4 , or 5 ) . Each score's name is based on the actual strokes taken compared to par: "Eagle": number of strokes is two less than par "Birdie": number of strokes is one less than

I need SQL statements for the questions. Thank you! Note.. Relation page Attributes page code: INTEGER primary key content content_type not allowed null description: VARCHAR(2000) not allowed null>> layout_template: template_code not allowed null developer: d_id not allowed nully - date_approved: DATE - approved by: d_id Constraints 1:
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1. Suppose you have an algorithm that always takes 312 steps to complete, regardless of the input size. Thus, we can write T(n) = 312. Using the formal definition of Big-O, show that the function T(n) = 312 is O(1). Remember that this means you must demonstrate that there exist two constants n0 and c that meet the requirements in the formal

Use a form control to select the employee ID in cell H 3 . Choose the correct answer. A . Use a list or combo box with input range $A$ 4 :$A$ 1 7 and cell link $H$ 3 . B . Use a scroll bar with minimum value 1 , maximum value 1 4 , and cell link $H$ 3 . C . Use an option button with cell link $H$ 3 . D . Use a list or combo box with input range

Needs to be done in C++ and we need to use loops here. Here is a program mentioned as an example: *How many numbers with 10 as sum of digits? unsigned short Count = 0; for (unsigned int N = 1; N

Briefly discuss the link between technological advancement to criminality and explain how the threats can be mitigated with regards to today s digital environment

The recovery continuum includes short - , intermediate - , and long - term phases of recovery activities that: A . Provide an exact timeline for recovery, regardless of a disaster's impacts B . Often overlap one another C . Do not overlap one another because they describe discrete activities that occur in sequence
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4. Take a position on whether you feel user interfaces for work will remain isolated or if they will become more collaborative. a. Present at least one evidence to support your argument. b. Provide one idea how an interface designer can protect users of a collaborative interface from hostile or malicious behavior. c. Provide two examples of

Stack heap questions 5. (16 points) (either 2 or 4 points each, look below for individual section points) Answer some questions about the following Java program; use the line numbers to identify particular state ments or variables. Assume that Widget is a valid class defined in some other file. 1 public class Midi ( 2 public int p, q: // instance
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Write a program that consists of 4 files: Game.java, GameCharacter.java,Wizard.java, Warrior. java and Archer.java The file game.java contains the main method and creates an object of each of the last 3 classes. It also calls the fight method and the toString method of each of the objects. The GameCharacter class contains all attributes and

The [ 1 ] operator is used to create an object based on a reference type.

write a recursive c function that calculates the summation of 1+2+4+8+16+.....for a given number n

Discuss the steps that you would take to ensure that we create an effective report. What questions would you ask of the users?

just trying to find the answer Q. 6. An ordered linked list of characters has been constructed using the array-based implementation. The following diagram has a linked list pointed by first where items are in alphabetical order and another linked list pointed by free that has available pool of nodes. Nodedata next 0 first = 3 4 5 free-5 6 i. Write
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Time - sharing is a technique which the user don't interact with the operating system. True False

Data Representation - Sound & Color 12. True or False A digital audio sample can be converted back to the EXACT analog sound wave it was created from Explain your answer (0.5 points) LLENGE CIVITY 3.1.2. Convert the equation to a circuit Jump to level 1 z = a + b Delete selected item(s) 10 a Undid 0 Click to add b 0 1 z 0 0 Check Next
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24 pts Consider the following database schema, and for each entity, identify any primary and/or foreign keys. If there is more than one value, write both, separated by a comma (or commas). If none, write the word none. Time Attem 1 Canvas is very specific as pertains to capitalization so use the case listed! If capital put capital, if lower case
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JAVA Exercise 2: Book and Author Class (40 points) Please develop a class called Book that represents a book, and another class called Author. The Book class represents the properties of a typical hardbound book, which consists of the following private attributes: (1) int - number of pages in the book; (2) int - year the book was published; (3)

It is best to think about RAM and the hard drive in the following terms: RAM ( Random Access Memory ) [ Choose ] Primary Memory Secondary Storage Hard Drive [ Choose ]
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Find the number of integers C divisible by 5 or 7 in the range [ 1 , 1 0 0 0 ] python

6) Convert the following unsigned binary numbers to decimal. Show your work. (a) 11102 (b) 1001002 (c) 110101112 (d) 0111010101001002 7) Repeat Exercise 6, but convert to hexadecimal. 8) Repeat Exercise 6, but assume they are 2's complement numbers and convert to decimal. 9) Perform the following additions of unsigned binary numbers. Indicate
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Shell Scripting Write a discussion post explaining the different syntax in bash shell scripting used to compare strings (words) and numbers. For example a text test to check if 0 is equal to 00 should be false but a numeric test for equality should be true. Give examples and explain how to do both.

This program is to implement the BUMP client in java (or C#). Those registered for 343 are to do this with window size 1 ; those registered for 443 should implement a more-or-less arbitrary window size. Here is an overview of the three WUMP protocols (BUMP, HUMP, and CHUMP). For the Java version, here are the files wumppkt.java, containing the

Custom Jewelers Custom Jewelers makes custom class rings for graduating seniors. As an accounting manager you want to create a workbook to report details on total costs to the student as well as payment information. Each ring financed has a base price plus ring personlization. 2 . In cell B 2 insert a function to display the current date and
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1) Write a program that computes the earnings per shift for a security guard. A security guard charges $15 per hour before midnight and $20 after midnight. The program reads the starting time in hours and minutes and the ending time in hours and minutes. All times are between 6:00 pm, and 5:59 am, using a 12-hour clock. For example, you should
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Given the dataset {25, 30, 70, 10, 18}. You are required to apply Divisive (DIANA) clustering method and perform steps for the two iterations. Use Manhattan metric for distance matrix computation. (8 marks) (b): Theexamination system records the marksof following students in English and Mathematics subjects, you are required to apply Agglomerative

1. What is forensics readiness? List various steps involved in forensics readiness planning. 2. List 5 code of ethics that an investigator should consider while handling a case? 3. What are the responsibilities of a forensic investigator in investigating the computer forensics for an organization? 4. Company-Policy Violation Case You as a forensic

I need a fast answer (C6, ???, ???) A six stages pipelined (FI, DI, co, FO, El and WO) in a 64-bit processor is required for a security system to monitor shopping mall. The attached local memory is 8MB and the shared memory is 16GB. The processor commands set bandwidth up to 1976 instructions and the total attached cameras and sensors are 1023.
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This code is implemented and working, I just need someone to comment it out to explain what each part of the code is doing. The top of the code is basically a description of what the overall code does. I just need more detailed comments within the code itself explaining what each line does. I will also post the other function that is called within
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Question 3 5 pts A large storm buries half of the native seagrass bed and a new species of seagrass grows in the disturbed areas. The ecologists decided to repeat the experiment and add a treatment in the bed of the new seagrass. Perform an ANOVA in Excel and provide the degrees of freedom 18 value of Fl and the p-value of the results. Remember to
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CS 112 Project 6 Classes, Exceptions Due Date: SUNDAY, May 7 th , 11:59pm Note: no late submissions allowed on this project! Make the deadline, plan ahead. Please read the "Notes" section before writing any code! The purpose of this assignment is to explore classes and exceptions. We will be creating classes to represent books, patrons, and

I would like a summary of this text: "In early August 1991, a former employee of Procter & Gamble telephoned Wall Street Journal reporter Alecia Swasy at her Pittsburgh office to report some disturbing news.The cops want to know what I told you about P&G, he said. This 20-year veteran of the company had just been grilled for an hour by an

do some research and describe the difference between Piconets and WLAN

In this project, you will write a simple HTTP server (using ServerSocket class) that serves web browsers as its clients. This server is capable of processing only one request (like Project 1). Once your program starts, it opens a server socket with port number 9000, waiting for any client connection. After the server starts, it displays (on

How to use Forms in ReactJS? Give an example of using Forms in ReactJS by developing a User Registration Form?

Consider the following propositional logic sentence P In which of the following models is P false?
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Consider an instance of the Satisfiability Problem, specified by clauses Q over a set of Boolean variables 1 , dots, . We say that the instance is monotone if each term in each clause consists of a non - negated variable; that is , each term is equal to , for some , rather than . Monotone instances of Satisfiability are very easy to solve: They

C An integer is divisible by 9 if the sum of its digits is divisible Example output by 9. Develop a program which will call UDF: int get_input(); to prompt the user for an integer and return this user input to main(). Call UDF: void display(int val); to display each digit of the integer starting with the rightmost digit. Your program should also
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Please answer 18, 19 and 22 directs it to a single output le 18. How are sequential circuits different from combinational circuits? 19. What is the basic element of a sequential circuit? 20. What do we mean when we say that a sequential circuit is edge triggered rather than level triggered? 21. In the context of digital circuits, what is feedback?
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Select the runtime efficiency of the resize ( ) operation of a ChainedHashTable. 0 ( n ) 0 ( 1 ) O ( Mhash ( key ) ) where n; is the length of the list stored at bin i . 0 ( n 2 )

Using Python w rite the following function and provide a program to test it (main and function in one . py ) def readFloat (prompt) t hat displays the prompt string, followed by a space, reads a floating-point number in, and returns it. Below is how youre going to call the function: s alary = readFloat ( Please enter your salary:) perc entageRaise

3 Finite State Automaton ( FSA ) ( a ) Specify a minimal DFA using a transition diagram and a formal FSA specification that recognizes the following language: "All strings of 0 ' s and 1 ' s that contain an odd number of 0 ' s and any number of 1 ' s . " ( b ) Specify a minimal DFA using a transition diagram and a formal FSA specification that
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In Multilevel Queue Scheduling algorithm, processes can be classified into groups based on properties like _ _ _ _ _ _ _ _ _ . Group of answer choices A . Process type B . CPU time C . IO access D . Memory size E . All of the above

Urgently need! Please solve these within 20mins. TIA 1. Write down the following SQL queries and also write down their outputs a) Find out the loan amount of the customers whose customer street is Main. [4] b) Find out the name of the city of the customers whose Bank branch has the second maximum amount of assets. [6] c) Find the average account
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Consider the following pre-sort sequence 7,83,25,16a,78,32a,16b,12,91,32b,15 and the same sequence after it has been sorted: 7,12,15,16a, 16b,25,32b, 32a,78,83,91 The sort routine used is stable: True False

1. A complex number is of the form a +ib. Let x = a +ib and y = c+id. The operation of adding two complex numbers is: x+y = (a + c)+i(b + d). The operation of subtracting two complex number is: x - y = (a - c)+i(b-d). The operation of multiplying two complex number is: xxy = (ac - bd) +i(bc + ad). The operation of dividing two complex number is:
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1. Write a recursive C++ function writeLine(ch,n) that writes a character repeatedly to form a line of n characters. For example, writeLine('%', 5) produces the line % % % % %. 2. Now write another recursive function writeBlock (ch,n,m) that uses writeLine(ch, n) to write m lines of n characters each. For example, writeBlock('*', 5, 3) produces

TURING Java Question 1 0 of 1 5 Which of the following is true Select one answer , 0 0 : 0 2 : 2 6 None of the options are correct Dynamic binding takes place using norma functions. Static binding is better performance - wise than dynamic binding for static, final, and private methods. Static binding uses Objects to resolve to bind while Dynamic
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In order to practice implementing symbol tables, you will implement a binary search tree. A BST can actually be considered to be another type of data structure that we can use to implement an ADT. Since symbol tables are about nding values based on keys ( the search problem ) , it's appropriate to use a BST to implement them. BSTs are nice

ER daigram A small private company Sunny Harbor owns marina that hosts boats privately owned by customers, provides technical services for the boats, and organizes voyages on customers requests. To improve the companys operations, the owner of the company decided to store all related information in a database. The company has a few docks to

Which of the following statements correctly describe(s) amortized cost? (mark ALL that apply) Select one or more: O a. Amortized cost is equivalent to average cost. o b. Amortized cost of an operation is the total cost over a series of m operations, then divided by m. O c. Amortized cost is calculated based on the worst-case runtime for a single
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Rule of three. Python Programming On the NASA space shuttle, three computers were in use simultaneously. Computations were performed by all three computers, and the result of each computation was put to a vote. If at least two of the computers provided the same result, then that result was used. But if all computers each provided a different

1 . 1 Use the TODAY function to insert the current date in cell C 6 ) .
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Write a class that contains an array to keep track of yearly sales. YearlySales Class (Java eclipse) Member Variables: An array of double to hold each months sales. Methods: Average (calculates the avg sales for the year), Get/Set Create a class called YearlySales. The class should have one member variable that is an array. The array should be

(+5) Which of the following questions has not yet been answered by researchers? A. Is P contained in NP? B. Is NP contained in P? C. Are all the problems in NP solvable? D. Are all the problems in P solvable? (+5) Compute the following modular exponentiation equation 5121 mod 19 11 13 17 None of the above (+5) Using the equation (A * B) mod C = (A

I need help with this JAVA problem. Thanks! Purpose This lab will give you practice working with a binary search tree, and writing a recursive method to access the items in a binary search tree. Lab 1) A binary search tree may be displayed horizontally using recursion. Here is the rough algorithm: if (root is not empty) { Print right subtree,

Please help with a detailed solution. Thank You. will give thumbs up Please use Python, thanks. Python please 6 (10 pts) A pipe-flow fluids problem: Oil with a density (p=950 kg/m) and kinematic viscosity (v=2x10 m/s) flows through a 30-cm-diameter (d=0.3m) pipe that is 100 m long with a head loss of h = 8 m. The roughness ratio of the pipe is
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The Collatz sequence is generated by applying these 2 operations on the previous number. The rules are: When the current number is even, the next term is half of the current term. When the current number is odd, the next term is 3 n + 1 ( three times the current number plus 1 ) . For example: 5 generates the sequence - > 5 , 1 6 , 8 , 4 , 2 , 1
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You have joined Patterson Group, a renowned financial firm in South Africa, as a business analyst. Every week, it collects data about customer payments in Excel format from its various branches throughout the country. Companys head office has a master Excel file containing detailed information of every customer. Here main challenge for the company

Which of the following protocols is used to send e - mail to a server? SMTP FTP HTTP SSL
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Subject: Data Communication Topic: Multiplexing Question: Twenty two sources, four with a bit rate of 400 Mbps, ten with a bit rate of 200 Mbps and eight with a bit rate of 100 Mbps are to be combined using TDM. If the unit size is 20 bits determine the following questions: i. How this can be achieved? ii. Input time slot iii. Frame Size iv.
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Use any pseudo code example to explain how you can find the Big O and space complexity . Please explain these topics in detail and use your pseudo code, and any math to support your explanation. PLEASE MAKE SURE TO EXPLAIN BIG O AND SPACE COMPLEXITY

i want a simple answer for each part please. 1. (10 points) Forward Propagation and Backpropagation for a Simple Computational Graph A simple computational graph is given below. y Z a) Compute forward propagation for x = 1, y=3, and z= -2, b) Write local gradients for this simple computational graph. c) Now compute backward propagation. Show the
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Registers are small a small set of data holding places that are part of the computer processor. In many senses , a register is exactly like RAM, only smaller and closer to the processor than RAM. Why doesn't a processor have as much register storage as RAM. Looking for a thoughtful answer.
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True or false, In Excel, users can apply conditional filtering to each field in a table.

When executing a load word instruction the word is written in cache and main memory at the same time when using write through technique. Select one: O True O False
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CISC 1115 Professor Langsam Assignment #2 The Crooked Wholesale Distributing Center (with offices in all five boroughs) has a total of ten customers. These customers place their orders as follows: The Center has a program called crooked which processes data in a file crooked.txt representing orders. Each line in the file contains three quantities,
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Convert the following CFG into CNF S-> AACD A->aAb/ C->aC/a D->aDa/bDb/ (Note: Kindly answer the full question and also according to the given scenario. Most of the Chegg answers are not up to the mark and most experts are not experts at all. They just try to answer quickly without taking care of the quality. If you don't have in-depth knowledge
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Please Im not understanding what the question is asking for problem E. and problem F. Only Exercise 4.5 The New Zealand government consists of the political parties National, Labour, Greens, and Maori, with several smaller parties labeled as Other. Suppose you these they identified most with and obtained the following data: . There were 12 males
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