Databases Questions and Answers August 24, 2021

3. (20) Perform these hexadecimal additions using 16-bit arithmetic. State your answer as a 4-digit hexadecimal number. Below each total write "C or "NC" to indicate whether there is or is not a carry error, and "O" of "NO" to indicate whether there is or is not an overflow error

(Financial application: print a tax table) Listing 3.5 gives a program to compute tax. Write a method for computing tax using the following header: public static double computeTax(int status, double taxableIncome)Use this method to write a program that prints a tax table for taxable income from $50,000 to $70,000 with intervals of $100 for all the

Database concepts Find the names and ids of the students who have taken at most one cours e in the Spring 2010 semester. Notice, at most one means one or zero. So, the answer should include students who did not take any course during that semester The data: create table classroom (building varchar(15), room_number varchar(7), capacity

Purpose: Simulate the dealing of a card using rand(). Description: Write the following functions related to simulating the dealing of a card from a deck of playing cards: - int random(int n); - This function will return a single integer value between 0 and n-1. In this program you will pass 52 to the function so that it returns one of 52 different

I have an error on this code but i could not find it there is a memory leak somewhere in the program. ( It is in the LinkedList::remove() function. One of the cases for remove doesn't work properly.) any one can help me ? // main.cc // Andrew Gilpin // agg1@cec.wustl.edu // This file contains the example program used in the gdb debugging //

What is a constructor? Options: A special method that is run when a class is created. A special method that is run when an object is created. A method used to change the value of a class variable. A design pattern for dynamically controlling the creation of objects of a given supertype.

A customer's cell phone would be an example of a ________. (1 point) record field primary key table

You have provided spinach for lunch. Giovanni says, 'Gross. I ' m not eating that. ' How should you respond? Spinach is my favourite. Yum! Would you try a little? You shouldn't talk about food that way. You need to eat your vegetables. Ok , you can have peas instead. You can't have anything else until you eat your spinach.

Problem 3 . - Given the following A , B 1 2 - bit binary numbers, perform the specified logic operations, showing all the process and partial results. A = 1 0 0 1 1 0 1 0 1 0 1 0 , B = 1 0 1 1 1 1 0 0 1 0 0 1 \ table [ [ \ table [ [ \ table [ [ NOT ( 1 0 0 1 1 0 1 0 1 0 1 0

I want to write a bootloader for the Tiva TM 4 C 1 2 3 GH 6 PM . However, I do not know in which IDE and in which language it should be written. This is my first experience. I only know that a bootloader is a software that allows us to program a microcontroller using USB without a programmer and that it is loaded into flash memory. But I do not

When you move a file to the Recycle Bin or Trash, it is permanently deleted. a . True b . False

3. (as points) Analyze assembly program the following code segment. . data mystr: .cstring "325Lab" .text : Assemble into program memory. RESET stopiDT: mov.w mov.w nov.w #-STACK-END , SP #NDTPwlomouo,SNDTCTL #mystr, R4 : Initialize stackpointer ; stop watchdog timer gnext: mov.b eR4, RS lend j2 lnext j1 jmp sub.b add.b lconv lcopy #'a", #'A', RS

As soon as posible, Please Write a Python program that implements the following options based on the user choice: 1. Find Factorial of a number 2. Exchange Letter case in a String. 3. EXIT Implement the functions as follows: 1. find_fact: This function takes an integer number and returns the factorial of this number. 2. exchange_letter_case: This

image processing Assume that a gray level picture A has only 6 gray levels values: Fix the type of picture A and give the corresponding fix length code; call it Code 1 Assign probabilities to those values and use Huffman coding to find their corresponding variable length code; call it Code 2 What is the (average) length of Code 1? What is the

7. Let f(n)> f g(n) denote that the first derivative of f(n) is larger than that of g(n). (25) Let f(n)> a g(n) denote that f(n) is asymptotically larger than g(n)s. Let f(n)> p g(n) denote that f(n) is polynomially larger than g(n). Note that exponentially larger also qualifies as polynomially larger. Similarly, f < , a < , p < are defined. Fill

Problem 1 . Using vlookups, display the item name, area, and period month on the All Items tab. Hint: You will need to use at least two vlookups to link series _ id to area code and then to area. The end product will display Item _ code, Item _ Name, Area _ Code, Area and Period _ Name on the Problem 1 ( All Items ) tab next to each row of data.

Your company is using SharePoint Online. You are tasked to give a partner company temporary access to a SharePoint Online site. What should you do ?

Which type of technology transmits phone calls, low cost, and has the ability to have more than one phone number? VoIP P 2 P IPTV UC

Question 2 7 ( 2 points ) Listen There are four major business functions: human resources; manufacturing and production; finance and accounting; and information technology True False

1. Trigonometric and Complex Exponential Fourier Series (a) Warm up: Find both the trigonometric and complex exponen- tial Fourier Series (FS) of f(x) = 4-2cos 2x + sin 52,0-x-2 (1) (b) Find the trigonometric FS of f(x) = 4x f(x)=-2 -2

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is there a hypothesis in Artificial Intelligence Applications in K - 1 2 Education: A Systematic Lite

The description and figure below apply to Question 5 4 5 7 Unless the different protocol is explicitly stated, assuming TCP Reno is the protocol experiencing the behavior shown in the figure. Question 5 4 During what transmission round is the 1 6 0 th segment sent? [ 4 . 4 ) ( 3 Points ) A - 7 B - 8 C - 9 D - 1 0

Programming Exercises 19. A database is to be developed to keep track of student information at your college. It will include names, identification numbers, and grade point averages. The data set will be accessed in the key field mode, with the student's name being the key field. Code a class named StudentListings that defines the nodes. Your

****the alerts boxes and form validation are not working please fix the errors**** add output as ss Join Us body{ background-color:#F8F8FF; } #txtCity{ width: 40px; } #txtState, #txtZip{ width: 25px; } "Fitness Power" For a healthy living Home Drinks

What is required to make a one - time pad encryption system truly unbreakable? Question 6 Answer a . Use an obscure, published book, with a secret way of choosing the key from words, lines, or phrases in that book; this secret must be known only to sender and recipient. This simplifies the key distribution and management process. b . Generate the

5 Only employees connected to IPv 6 interfaces are having difficulty connecting to remote networks. The analyst wants to verify that IPv 6 routing has been enabled. What is the best command to use to accomplish the task? show running - config show interfaces copy running - config startup - config show ip nat translations

In Java, please help with the code Homework1 consists of two parts. Both parts should be contained as separate static methods in a class called Homework1 and called from the main() method in that class. The first method, calculateShippingDate(), should consecutively display three dialog boxes, asking the user to input the day, month and year of

In TCP , a FIN segment consumes sequence numbers if it does not carry data. Select one: a one b . none of the choices are correct two d . N - ACK

True or False: Sandboxing provides a controlled environment for running programs, limiting access to resources like the operating system files and network to prevent malicious software from affecting other computer parts. 1 point True False

Create a simple cash flow model for accumulating savings in Matlab Simulink (Initial parameters: Salary = 3600; Expenses = 3000). Make sure to set the modeling time step time to 1 . Answer the questions below (by implementing appropriate modifications in Simulink model). 1) Assume that the cumulated savings are paid 2.5% interest per year

RAID 0 stripes data evenly across two or more disks in order to increase performance ( speed ) . Some people argue that it should not be included as a RAID level. Why?

what is a Transform - Oriented language?

4. (5) Assume that the following additions are done on 7 bit hardware. Find the totals assuming that signed representation is used. - 100 - 100 50 - 50 50 50 100 100

Write an x 8 6 assembly program that removes all occurrences of a given word in an input char array, with the following requirements: 1 . The maximum length of the input array is 4 0 chars. 2 . The input array will be typed using the keyboard. 3 . The input array will be stored in pre - allocated memory locations 4 . The result will be displayed

refer to this use case to create Entity Relationship Diagram (ERD) Smart Gate Access using Touch ID and Vehicle plate Recognition System (SGA) Scan Finger Verification > Open Gate Automatically clude odincludes Verification Scan License Plate Add Employee Finger Print Add Employee License Plate EMPLOYEE Helpline Access Databse ALPR ADMINSTRATOR

Please show all steps! You don't need to use code. For MA ( 1 ) model x t = w t - 1 + w t , using the innovation algorithm to show that n 1 = 2 P n n - 1 , n j = 0 , j = 2 , 3 , cdots, n

Create code that creates the appropriate variables required define the maximum number, minimum number, randomly generated number ( you will need to research this ) , and the user entered number. Create the code that will generate a random number between 1 and 1 0 . Use an If Statement to decide if the entered number matches the randomly generated

Question 5.) (20 pts) Given a sequence of n real numbers A[1] .. A[n], we want to develop an algorithm to determine a contiguous subsequence A[i] .. A[j] for which the sum of elements in the subsequence is minimized. For example, in the sequence {4, 1, -6, 2, -4,-1, 6, 1, -2, 1), minimum value contiguous subsequence is {-6, 2, -4,-1} for the sum

Programming Exercise 5.9 ( Find the two highest scores ) Write a program that prompts the user to enter the number of students and each students name and score, and finally displays the student with the highest score and the student with the second-highest score. Use the next() method in the Scanner class to read a name rather than using the

PART II: Transform the following ERD to 3-Normalization-Form (3NF). Note: Make fur sure you include the Stalf Supervisor Patent Stalf Type D z Doctor N Nurse Doctor Experience

I need help with a proof of all information is included and all part of the same question, Why does Colleys Method always preserve the average rating of 1/2? Colley's Method is Where I is the identity matrix, and is a matrix added for each game k. Therefore if team i plays team j in the game, the matrix has the form , and , with all other enteries

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Create the Knuth - Morris - Pratt DFA for the string aabaacab over the alphabet { a , b , c } . As usual, state 0 is the start state and state 8 is the accept state

Software Verification and Validation Topics Covered: Equivalence Class Testing Non-Functional Aspects of System Testing Question#2: _(5 Marks) Mention the type of non-functional system testing approach used in the following cases: S.No Scenario Testing Approach 1 2 Which testing approach is used to protect against possible misuse of the system?

Write a PHP program to define session variables to assign the numbers 103 and 210 into it. Find the total (addition) of these numbers and display output as shown. Use session function to start the session. [2.5 marks] (WRITE THE PHP CODE IN YOUR ANSWER SHEET) Output: Total is: 313

import numpy as np import pandas as pd import statsmodels.formula.api as sms house = # load the file kc _ house _ data.csv model = # fit a linear model using the sms . ols function and the house dataframe area = float ( input ( ) ) prediction = # use the model.predict function to find the predicted value for price using # the area value for the

R-2.8 Let T be a binary tree with n nodes, and let p be the level numbering of the nodes of T, so that the root, r, is numbered as p(r)1, and a node v has left child numbered 2p(v) and right child numbered 2p(v) 1, if they exist a. Show that, for every node v of T, p()2(+1)/21 b. Show an example of a binary tree with at least five nodes that

Select the conditional operator Group of answer choices value 1 : condition? value 2 condition ? value 1 : value 2 value 1 : value 2 ? condition condition ? value 1 : value 2 : value 3

#include #include #include #include ?stdio.h?

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What does the base JUnit code test do? What JUnit version is this? Defend your answer. + What is the function of the @ statements other than @Test? + What is suggested by the overall design of this JUnit code? ts that would help make the tests better

a.1) What are the properties of a GNFA? Convert the following DFA into a regular expression. Construct GNFA as an intermediary step. a.2) Explain the properties of pumping lemma for proving the non-regularity of languages. a.3) Using pumping lemma for regular language, show the language is not regular. (10 + 5 + 10 Marks) (1

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An advantage of user - level threads over kernel level threads is q , ? non - portability

Answer the following questions: Problem 1 : Draw a flowchart to show how the product of two matrices can be obtained. Example : Input: , A [ 1 , 3 , 8 , 4 ] , B = [ 2 , 3 , 5 , 4 ] Output: , Z = [ 2 , 9 , 4 0 , 1 6 ] ( 5 marks )

The purpose of the Gramm - Leach - Bliley Act _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is to fight identity theft. Question 1 2 options: Red Flags Rule Safeguards Rule Privacy Rule Pretexting Rule

While modifying a file system table ( fstab ) file to create a persistent mount point, which of the following parameter specifies if the order of the filesystem is to be checked? type dump options pass

Please answer as soon as possible using python as the programming language For this assignment you will demonstrate that you can design, implement, and test expressions that use logical operators. You will do so by determining the expressions that correspond to a pair of simple circuit schematics that were assigned specifically to your student

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Edward works for a startup that is building a mapping visualization toolTheir EC 2 servers need to access data stored within S 3 bucketsEdward created a user in IAM for these servers and uploaded keys to the serverIs Edward following best practices for this approach? If not, what should he do ?

So far we assumed that parameter passing during procedure calls takes constant time, even if an N-element array or sequence is being passed. This assumption is usually valid as most systems pass a pointer to the array not the array itself, which is called call by reference. However, some settings, problems, or systems, may require call by value

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3FFE RAM Please solution with explain Question 1 A memory map shown in Fig-1 with the addresses of several memory types, the EAROM size (number of locations) is 2592 decimal locations, determine:- a) The highest address of the EAROM X in hex. b) The size of ROM in kilobytes. c) The number of I/O ports. d) The size of RAM in kilobytes 1A2C 1A2B I/O

What is the multiplicative inverse of ( 9 5 ) hex in AES where m ( x ) = x 8 + x 4 + x 3 + x + 1 ?

Waterfall model is the best suited model if requirements analyzed during the requirement engineering process can be understood easily and is consistent and defined are easily understandable. Select one: True False

Which of the following is considered a Windows security administration best practice? Question 3 options: Install firewalls to create a demilitarized zone ( DMZ ) . Communicate only with stakeholders who have a need to know; share as little information as possible. Ensure all developers are trained on developing secure applications. Ensure the

Theory of computation:: please I need a full answer for all questions (4) HOME-WORK 1-Draw NPDA for the following languages L={011 1",n20) L={02n10,n20) 2-Write a context free grammar for the following languages L={0-1,n2m} L={acmbmko,n,m20} L={wow).wela.b) LE{w, number of a's equal to the number of b's), wela.b) 3-Prove that CFL are closed under

Resources You'll need the following resources for this try - it: Open L 1 _ T 1 _ try 1 _ results _ starter.xlsx in this lesson's Learning Activity Resources. Instructions The following are the general tasks that you must perform during this try - it: Examine the formula in cell C 5 . Create a similar formula in cell C 6 that asks if the value in

When making a make - or - buy decision regarding software, which type of decision could help improve a process rather than just automating an existing procedure? Buy laaS Do not act Make

1 . 7 : Addition using 2 is Complement ( 6 bit #s ) A ) 2 1 + 1 1 b ) ( - 1 4 ) + ( - 3 2 ) c ) ( - 2 5 ) + 1 8 d ) ( - 1 2 ) + 1 3 e ) ( - 1 1 ) + ( - 2 1 )

3 . Question 3 You are using a computer running Windows. You think you re currently in the C: \ Users \ pictures \ cats directory, but you want to confirm this. Which command should you use? 1 point pwd cd PWD CWD 4 . Question 4 You are us

Question 1 Which of the following are challenges facing data analysts? Choose TWO of the following: Storage of data Cost of data Relevance of data Access to data

What does the microphone do ? ( a ) Microphone inputs sounds to the computer to tell it what to do ( b ) Microphone is an output device ( c ) Microphone is not important ( d ) Microphone is like a speaker

Question 2 What type of DNS record is used for email servers? 1 point CNAME A AAAA MX

In this assignment, you will implement an electronic stock trading system. Your system will accept trading orders and based on those orders, it will keep track of pending orders, and execute trades when possible. 1. Database design (20 points) Use Microsoft Access to design a database for the stock trading system. You should determine the tables

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Complete the following statement to create a table named Country. Choose the best data type with the following minimum storage requirements: - ISOCode3 stores the country's three-letter code. - IndepDate stores the country's independence date. ISOCode3 IndepDate ;; Enter a statement to delete the above table

language: python 3 don't write the whole code just the expression Given the strings s1 and s2, not necessarily of the same length, create a new string consisting of alternating characters of s1 and s2 (that is, the first character of s1 followed by the first character of s2, followed by the second character of s1, followed by the second character

Smart cars a . have sensors that monitor objects in the car's blind spots and at the front and rear of the car b . speed up , slow down, change lanes, and turn without human intervention while traveling c . report the data they collect, such as gas mileage, to the manufacturer but not the owner d . rely on maps, traffic information, and weather

Inheritance Programming Assignment Introduction Graphical User Interfaces (GUIs) support, among other things, a wide variety of shapes that can be drawn to the screen. Some of these shapes are ovals, circles, rectangles, squares, triangles, etc. Java has built-in methods to represent a variety of shapes but we wont be using those. In this

We want to write an ARM assembly program that calculates the mean absolute difference of two arrays x and y of N 3 2 - bit numbers stored in memory: = 1 N i = 1 N | x i - y i | The ARM assembly program shall use a subroutine mean where the parameters are passed using the stack. a ) Write an ARM subroutine mean that calculates the mean absolute

SQL is an ISO standard

Match each term on the left with its definition on the right. Drag World Wide Web Internet Wi - Fi Internet service provider Drop A protocol that associates domain names with unique IP addresses A technology that provides wireless internet connectivity through wireless routers A company that provides access to the internet An interconnected global

This is my second time uploading this assignment and when I look at the answers to other people's questions, I see that it is wrong. Could you please solve the question I added? Please do not copy and paste other answers or give irrelevant answers.I've been waiting for an answer for a week, it's very urgent. You should submit two files: 1- a .h

Problem 3. Suppose that 4% of the patients tested in a clinic are infected with avian flue. Also, suppose that when a blood test for avian flue is given, 98% of the patients infected with avian flue test positive and that 2% of the non-infected patients test positive. What is the probability that: (a) a patient testing positive for avian flue is

As a business professional, one needs to look at information systems only through the lens of: Question 1 0 options: cost savings. technology. business processes. software. business need.

Refer to the following figure which contains drafts of a context and level-0 DFD for a University class CHAPTER 7 STRUCTURING SYSTEM PR TABLE 7-2 Rules Governing Data Flow Diagramming Process: A. No process can have only outputs. It would be making data from nothing (a miracle). If an object has only outputs, then it must be a source B. No process

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Assume we have the following Dictionary that uses Bayes filtering method for boy vs girl interests as follows in the table. Find the following clearly with showing your work: 1) P("Girl") 2) P("visit") 3) P("Play"|"Girl") 4) P("Like biking"| "Boy") 5) P("Boy"| "Play") Assume we have the following Dictionary that uses Bayes filtering method for boy

* Good things about online documentation, highlight the bad things with resolutions in HCI

1. If the processor has 32 address lines in its address bus; i.e. 32-bit address range, what is its address space or range; i.e. what is the smallest and largest address that can be represented? Given the following diagram of a simple processor and memory controller, along with the timing diagram illustrating both a memory read and write

1) A card stores authentication data. a) magnetic stripe b) smart c) Both a and b d) Neither a norb 2) A does not require a special reader to be added to a PC for access control. a) USB plug-in token b) magnetic stripe card c) smart card d) All of the above 3) Consider a fingerprint recognition system. During the enrollment phase, which of the

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( 6 points ) Consider the following database instance, which contains information about employees and the projects to which they are assigned: Show ALL the tables ( including the intermediate ones ) that would be produced by each of the following relational algebra commands: a . 'Smith' { : ( E m p ) ) | > | Assign b . Proj ) { : ) Assign

The 2 ' s complement of binary number 1 0 1 0 is ? A . 0 1 0 1 B . 1 0 1 0 C . 0 1 1 0 Dr . Hani Al - Balasmeh

You have a version control system installed. Several developers work with this system. A new developer wants to work on the code. What is the first task that the developer must perform? Copy the code from the developers' system Check out the existing code Check in the code Send an approval request to get the code

Problem 4. Suppose that a Bayesian spam filter is trained on a set of 1000 spam messages and 250 messages that are not spam. The word "cruise" appears in 50 spam messages and in 2 messages that are not spam, while the word "urgent" appears in 100 spam messages and in 10 messages that are not spam. Would an incoming message be rejected as spam f t

Question 2 of 3 Which of the following categories of apps can be downloaded using Microsoft Store? ( Select all that apply ) none of the above free pasid trial

6 . 1 8 LAB: Parsing food data Given a text file containing the availability of food items, write a program that reads the information from the text file and outputs the available food items. The program first reads the name of the text file from the user. The program then reads the text file, stores the information into four separate arrays, and

This program should be called TestShapes.java. For this program write 5 classes. The requirements are listed below. Program should be done in Java. I am having trouble because I don't know if I have to create 5 classes inside one "package" or "project" - or if the whole program can be written in one "class". Please answer this question as well as

Q5. Why is Linkedin so useful for job seekers and for employees? Q6. What are the advantages of selling insurance online? Q7. How are banking transactions protected? Q8. What are the difficulties in conducting an online grocery business? Describe some solutions

For this part, you will design a set of classes that work together to simulate a cars fuel gauge and odometer. The classes you will design are the following: The FuelGauge class: This class will simulate a fuel gauge. Its responsibilities are as follows: o To know the cars current amount of fuel, in gallons o To report the cars current amount of

Give the output of the following program segment and also mention how many times the loop is excited. ( ICSEZI;int i;for ( i = 5 ; i > 1 0 ; i + + ) System . out.printin ( i ) ;System.out.printin ( * 4 ) ;

please fix this program, using the following method ;load 1 0 0 0 0 ( called reference ) ;loop: ; subtract 1 2 8 0 1 by 1 0 0 0 0 ; if resulting number in the 1 0 0 0 0 ' s is positive or zero, increment a counter by 1 ; if resulting number in is negative, dont increment counter and do following: ; print counter ; divide reference by 1 0 ; start

Please I need both questions solved (2 and 15) thank you 2. Consider the following statements in English. Write a logical expression with the same meaning. The domain of discourse must be the set of all real numbers. (4 pts) a. There is a number whose cube is equal to -2. b. The reciprocal of every number between 0 and 1 is greater than1 15. Use

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Computer clusters refer to multi - computer systems whereby each system with its own CPU, memory and input - output facilties are called a node. Consider yourself setting up a small personal computer cluster, which of the shared disk model and shared nothing model would you prefer? Give your justifications. [ 2 marks ]

Create a text file boolean. txt . Indicate the result of these boolean expressions. Try to figure out the answer for each before you check it in the interpreter. Assume that these variables have first been set as follows: alpha = 1 2 0 beta = 2 2 5 gamma = 1 2 0 . 0 delta = 1 2 0 a = hello b I = g d b y e c = g d r i d d a n c e b l = 3 = = 4 Now,

int fib(int n){ if (n==0) return -2; else if (n==1) return -3; else return fib(n-1)+fib(n-2); } **implementing recursive calls