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Databases Questions and Answers November 12, 2018

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Sort the following processes into chemical or physical processes: Paper in old books turning yellow A shopping cart hits a car leaving a scratch in the paint on the right rear quarter panel A window shattering when hit by a rock Bananas tuming brown when left in the refrigerator. Spoiled milk and butter beginning to smell like vormit.

Does the following data represent a function? (1,-4);(5,-4);(6,0)

Write a C program that does the following: 1) Displays "full name," "email address," and "Class Assignment-1" on seperate lines in a box surrounded by stars (*) in the middle of the screen. 2) Displays first and last initials in large fonts to the screen as shown in the screenshot 3) Includes introductory comments at the beginning of the code. To
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Exercise 6: A virtual memory system uses 4 KB pages, 64-bit words, and a 48-bit virtual address. A particular program and its data require 4263 pages (a) What is the minimum number of page tables required? (b) What is the minimum number of entries required in the directory page? (e) Based on your answers to (a) and (b). how many entries are there
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In a script, ask the user Would you like to continue? . If a response of y OR Y is entered, provide the message: OK. Continuing. If a response of n OR N is entered, provide the message: OK. Stopping. If any other response is entered, provide the message: Error. Not a valid choice. Adjust the code to prevent a runtime error when two letters are

Which of the following is an example of a watering hole attack?

Using sources from either the Internet, newspaper or magazine, identify any 4 recent job opportunities from different employers relevant to systems analysis and design, and write a report summarizing in your own words the key job expectations of the successful candidate for the job. Discuss how the expectations of the job impacts your study on the

List two security control measures (Also called security measures) available for businesses to protect their information systems?

Coding Language c++ Huffman Encoding Using the Huffman encoding algorithm as explained in class, encode and decode the Speech.txt file using frequency tree and priority queue. Implement Huffman style of tree (built from the bottom-up) and use it to encode/decode the text file. Questions to answer: What is your compression ratio in terms of

All of the following are alternate identifiers, except?

(emu8086) a) Develop a sequence of instructions that will clear the three rightmost bits of DH without changing DH and save the result in BH. b) Develop a sequence of instructions that will set the five leftmost bits of DI without changing DI and save the result in SI. c) Develop a sequence of instructions that will set the four leftmost bits of

public int add(int i1,int i2) { return i1+i2;}} class BusinessLogic \{ Database database = new Database(); \} class Database\{ int add(int i1,int i2) Presentation presentation = new Presentation(); return presentation.add(i1,i2); } 1) Nothing, Code is fine 2) Business Logic should be combined with Database layer. 3) Database Layer should not call
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Hi I am having trouble with my Java project. Please try and keep to the assignment. I saw a similar question and the person answering kinda threw away some of the instructions.I have most of it down but don't understand how to use the lamdba expressions. Thanks a ton! Create an application that collects and displays various animals. Console

On versions of the UNIX and Linux operating systems, some programs determine rights by the effective UID, and others by the username. Suppose two different users have the same login name. What problems might this cause? What, if any, are the benefits? Answer:

Write the algorithm in psuedocode notation. Thanks!
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3. In an international ballroom dancing competition, competitors are scored by a panel of judges on a scale from 0 to 100. The final score for each couple is computed as the average of the scores from all the judges. However, if the number of judges is equal to or greater than 6, and the highest score is given by only one judge, that score is

Using binary addition. Add these two numbers using two's complement. +9 -13

List four things that every instruction must specify, either explicitly or implicitly

Question 1 6 What is the name of the Python object that represents XML data? xml xml . etree.ElementTree xml . etree xml . etree.ElementTree.parse ( )

Create a class called PetrolPurchase to represent information about the petrol you purchase. The class should include five pieces of information in the form of instance variables - the station location, the quantity of purchase in litres, the type of petrol, the price per litre and the percentage of discount. Your class should have a constructor

Instead of charging penalties for going over your data quota, most carriers will ____. a. do nothing b. cancel your service c. throttle down your connection speed d. temporarily disable your phone

Subject: Microprocessor and Microcontroller (a) Show the status of the PSW (program status word) after performing each of the following instructions: MOV A, #9FH ADD A, #64H

difficult if the document has not been updated recently, that is , within the last two or three years. For example, a family member may insist that the patient had changed his mind and the previously stated preferences are no longer valid. Based on your reading of Chapter 8 , discuss one or two other sets of circumstances that might justify
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Write a program that creates a function with three arguments, one of which has a default value. All arguments are integers. The function takes the larger of the 2nd and 3rd arguments, adds that to the first argument, and returns the result. Call your function three times, at least once using the default value for the argument which has a default.

a pythagoras cup has a hollow u tube that empties out of the bottom. the design is intented to punish someone for being too greedy and filling their cup

Car loan payment calculator. Design and implement a Python - GUI application to enter car price , down payment , interest rate per year , and length of loan in years. The application should calculate and display the monthly payment the client should pay based on the loan amount. Loan amount= car price down payment Monthly payment=( Loan amount +

You are given the following lists. Write code that produce the following resulting list .Python list names=[ 'April' , 'Bill' , 'Cindy' , 'Dave' , 'Emily' ] test1=[34, 21, 67, 45, 88] test2=[11, 67, 92, 35, 89] test3=[94, 33, 67, 34, 67] test4=[27, 83, 43, 67, 93] test5=[43, 76, 78, 45, 65] resultingList= print(resultingList)

Explain the the surrogate primary key, and when would you use one.

Design an application which contain features like online video conferencing like google meet or zoom and also put option of chatting in that. Paste the program with screenshot here. Don't put any suggestion in answer, it i'll be directly disliked and reported..

Operating costs do not depend on the hours of operating a piece of equipment. a . True b . False
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Which of the following expressions will evaluate to true if a String s contains "Java Programming is Fun"? if (s.indexOf("Programming") == 0) if (s.indexOf("Programming") == 4) if (s.indexOf("Programming") == 5) if (s.indexOf("Programming") == 6)

In Entity - Relationship Data Model, a subtype of a generalization relationship cannot have relationships with other entity types since a subtype is dependent on its supertype. True False
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Briefly explain the differences between lexical and syntax analysis, (b) Describe the approaches to developing a lexical analyzer
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Wrtite a bank system program in c + + has 4 opretions 1 . Open new account 2 . Display account information 3 . Deposite money to account balance 4 . Withdraw money from account balance 5 . exit
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imagine you are a business owner how do you incorporate honesty and integrity in your business

While building the Neural Network, at what stage do we compute gradient descent to update the weights?State whether the following statement is True or False. The partial derivative of the cost function is used in the chain rule of Backpropagation, in order to minimize the cost function.

Between the linear search and the binary search algorithms, which one will you select to search for a number in the following datasets and why? Also, what will be the time complexities? [Points: 2x(1+2+2) = 10] 100, 110, 170, 180, 120, 130, 210, 220, 230, 140, 150, 160, 190, 200, 240, 250 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210,

(4) (15 pts) Let = {0, 1, +,-. Let ADDyz | x,y,z are binary integers, and x is the sum of y and z . Use the pumping lemma to prove ADD is not regular
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Please help comment the code: tictactoetester.java package tictactoe; import java.util.Scanner; public class TicTacToeTester { public static void main(String[] args) { Scanner in = new Scanner(System.in); String player = "X"; TicTacToe game = new TicTacToe(); boolean done = false; while(!done) { System.out.print(game.toString());

A wireless computer LAN connection may not be good choice where an environment with large quantities of airborne particles a remote area of a building where one person or workgroup is located were a building is remote from the main LAN server and wiring a situation that is separated by a highway or river
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The power of a signal is 10 mW and the power of the noise is 1 /lW; what are the values of SNR and SNRdB? (c) The power of a signal is 10mW and the power of the noise is 1/1W; what are the values of SNR and SNRdB
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Question 3 . Let S be the set of all binary strings such that for every ( non - empty ) block of 0 s , the block of 1 s that follows it is longer than that block of 0 s or empty. For instance, the strings of length three in S are 0 0 0 , 0 1 1 , 1 1 1 , 1 1 0 , 1 0 0 . ( a ) Write out the binary strings of length four in S . ( b ) Find the
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Add a calculated field in the last position named Follow - up Date that displays the date that is two weeks after the check - out date. Your calculated field should use the DateAdd function. Sort in Ascending order by Follow - up Date. Run the query, and then save it as qryFollowUp. Close the query. Hi I stock with this question and I not sure
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Do you think that there are benefits in obtaining multiple types of certification rather than specializing in one type?

Decoders, depending on input code, activate only one of the minterm outputs. True or False?

Please assist i n answering all the questions. CSCI 4 6 1 3 / 5 6 1 3 - Assignment 1 Convert the following binary numbers to base ten: ( 1 point each ) ( a ) 1 1 ( b ) 1 0 1 0 1 0 ( c ) 1 1 1 1 1 1 1 1 ( d ) 1 1 1 1 1 1 0 1 0 0 0 Convert each of the following hexadecimal numbers to base ten: ( 1 point each ) ( a ) c ( b ) b 4 ( c ) bad ( d ) 7 e 8
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Matlab script P9.1.4 Complete the following function so that it performs as specified: function s = Compress(t) % t is a string % s is obtained by deleting all the blanks in t. % Thus, if t = ab cd efg, then s should be assigned abcdef

Please describe one real life example in computer security to show that cryptography cannot solve all problems in security.

What allows to determine which network segment an IP address belongs to ?

QUESTION 6 which of the given strings is not accepted by the NFA below? Ja, O None of the given choices Obba O abb Obb QUESTION 11 Which of the following statements is true regarding the following DFA ? - 90 (92 D 0,1 1 O The DFA only accepts strings which have atleast a 1. The DFA only accepts strings which end with o None of the given choices
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Question 6 Which type of GenerativeAl model is designed to learn a probability distribution over the training data and sample from it to generate new instances? Autoencoders Variational Autoencoders ( VAEs ) Reinforcement Learning models Sequence Generativemodels Reset
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2 . 2 6 LAB: Expression for calories burned during workout The following equation estimates the average calories burned for a person when exercising, which is based on a scientific journal article ( source ) : Calories = ( ( Age x 0 . 2 7 5 7 ) + ( Weight x 0 . 0 3 2 9 5 ) + ( Heart Rate x 1 . 0 7 8 1 ) 7 5 . 4 9 9 1 ) x Time / 8 . 3 6 8 Write a

Once a database is designed to reduce redundancy and ensure integrity it has achieved.... Group of answer choices Artificial Intelligence Knowledge Zen Normalization

"Above Average" if the company's profit / emp is higher than the average profit / emp for all companies. "Below Average" if the company's profit / emp is lower than the average profit / emp for all companies. "Average" if the company's profit / emp is equal to the average profit / emp for all companies.

CHALLENGE ACTIVITY 2 . 6 . 1 : Type casting: Computing average owls per zoo. Assign avg _ owls with the average owls per zoo. Print avg _ owls as an integer. Sample output for inputs: 1 2 4 Average owls per zoo: 2 Learn how our autograder works 5 4 1 5 1 2 3 4 1 6 5 7 2 qx 3 z q y 7 avg _ owls = 0 . 0 num _ owls _ zooA = int ( input ( )
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The fundamentals of mobile SEO are: 1 . A usable, crawlable site is very important. Build mobile versions of your website that cater for mobile users that prioritises simple navigation and stripped - down content . 2 . Content is important and should be formatted for mobile usage. Text and images should be optimised for the mobile experience, so

I have to develop an information model using Prolog programming language, to be able to represent a UML model in Prolog format. The problem is I don't really understand the examples on the internet, and I don't know where to start? How can I define UML elements such as classes, interfaces, attributes, method, associations, compositions,

a) Draw the state transition diagram (STD) to design a software that identifies the acknowledgement message received at the digital receiver of the communication system. The acknowledgement message is identified when the four consecutive 1s are detected in the received bitstream data. Consider software initially is in idle state and can be reset

Add the Following numbers in the Two's Complement System and perform these aritmethic operations IV. Add the following pairs of numbers in the Two's Complement system 10110011 +01011010 10001110 +01110010 1100011 10101011 10001111 + 01010010 11000011 +01011101 V. Perform the following arithmetic operations using the two's complement system with 10
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7 bits can represent how many things?

What are the emerging cybersecurity trends, including the increasing use of artificial intelligence and machine learning in cybersecurity, the growing importance of cloud security, and the rise of IoT?

The shape factor for the deflection of a flat trapezoidal leaf spring is: K=3/(1-B0^3[0.5-2B+B(1.5-lnB)] where B <1 is the ratio of trapezoid. determine k when b =0.6

obs : In order to calculate the VAT : VAT value = 10% on all products
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Here Sequence.m function : classdef sequence properties data offset end methods function s = sequence(data, offset) % SEQUENCE Sequence object % S = SEQUENCE(DATA, OFFSET) creates sequence S % using DATA and OFFSET % % Your Name 1 Jan 2014 s.data = data; s.offset = offset; end function display(s) var = inputname(1); if (isempty(var)) disp('ans
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Find 3 or more new Windows Kernel-Mode Rookits (Newer than those in the textbook); briefly describe the inner workings of each rootkit

Part 1: Solving for Finite State Automata (FSA) - 50 pts For the two languages described below, draw the full Finite State Automata for each. Transitions must be drawn with directional arrows that clearly shows the transition element. 1) Construct a Deterministic Finite State Automata for the following language: L1={ab+a+}={a,b}
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I need help with the following Java code Write a recursive method that counts the number of nodes in a chain of linked nodes with the following header: private int countNodes(Node start) in LList.java. You need to use links, i.e., data field next of Node class, in this method. This method needs to be called from the following method in LList:

The Problem and Requirements In this project you implement a computer model for transactions on a debit card bank account. The transactions are carried out at an ATM machine. The program must perform the following functions. Repeatedly asks if service is required until the answer is no; if so, the process terminates, otherwise: A PIN is required
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Question 1 Which of the following are INVALID variable names in C ? team'svictory #AVERAGE total students in 2 0 1 9 fullName. 2 0 1 5 _ year baisc GROSSSALARY 5 1 2 person# 3 student - age hELLO FLOAT mindovermatter
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In this assignment, consider a single network message that originates in an application program in a user's computer in Orlando, Florida and finishes in New York. From there, it goes through: The user's application program The network stack of the user's machine A home wi-fi access point (layer 2 device) A home router (layer 3 device) A home cable

The grammar generated by the following grammar is {a"b2n|n>0} S->aSbb abb True False
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Explain any two of the collision resolution techniques with the help of an example.

Which of the following statements converts all letters in the string first_name to lowercase letters? A. first_name.lower() B. first_name.islower() C. first_name = first_name.lower() D. first_name = first_name.islower()

24. Match the concept with the phrase that best describes it. Choices - use a choice only once A. A Linked List data structure B. Stack data Structure C. A Queue data structure D. A simple Array Match each of the following to a choice 1. ... typically uses dynamic allocation and its size grows or shrinks as needed. Select A. A Linked List data

Question 4: Consider the following database schema: driver (emp_id, first_name, last_name, salary) route (route_code, from, to, distance, depart_time, arrival_time) bus (bus_id, manufacturer, model, fuel, max_autonomy) has_license (emp_id, bus_id) The driver relation has information about the bus drivers; the route relation indicates each bus
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In each of the following exercises experiment with the keyword DISTINCT and functions RTRIM ( ) and UPPER(). 9. Display the department id that has no employees in it with the department name. (use NOT IN statement) 10. Display different departments in the employees as well as the certified employees table. (use UNION statement)

1A.. compute the pumping length of the following string expression: (a|b)*ab+c(e|f)* 1B. Using pumping lemma prove that the following is not acceptable by a DFA wwR , w=(0|1)+ and wR is the reverse of w 1C. Prove the above using the two-step logic provided in the slides.

DATA STRUCTURES AND ALGORITHM ANNSWER ALL Note: 1) You will have to use the student version code assigned for each question and develop/extend the code to answer the question. If you use any other code to answer the question, you will get a ZERO for the question. 2) You should not use built-in C++ data structures (other than the ones, if any, used
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What code is needed in order for the message "Contact assistant dean" to be displayed from the following example? if s _ class.lower ( ) = = " fr " : if techFee 1 0 0 : print ( " Contact financial aid" ) else: print ( " Tech fee approved" ) elif s _ class.lower ( ) = = " so " : if techFee 1 0 0 and techFee 5 0 0 : print ( " Contact financial aid"
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Use NSLOOKUP command to resolve the IP address and show how library.wexler.hunter.cuny.edu domain is mapped to its IP address in DNS tree, you will draw a DNS tree includes Forwarding Lookups and Reverse Lookups. Reverse DNS lookups for IPv4 addresses use the special domain in-addr.arpa., alsoplease indicate root, TLD, SLD, sub-domain alongside

Use for-loops to print "hourglasses" of size=3 and size =5 in C language please and written not by hand please output for size 3 should look like this X------------X X--------X X----X XX X----X X--------X X------------X

Given the above information, answer the following questions. In all cases, please ignore the cost of writing the final result back to secondary storage. Please make sure to show your work for full credit. 2 . 1 ) ( 6 points ) Block Nested Loops Join Choose the outer relation such that the total cost is minimized. How many ( a ) total reads and ( b

The edits you make in a query datasheet do not affect the data in the underlying table. true or false When you sort on two fields in Query Design view, the sorted fields must appear next to each other in the query grid. true or false To perform calculations on field values in Table Datasheet view, you click the Totals button in the Records group

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Please read carefully provided screenshots as well Points Possible: 100 Task 1 (50 points) Implement a program to display a file's contents. It should be similar to the UNIX cat command when given a single file. Name your command show. It should have the following syntax: s /show fileName The above program displays the contents of the file named
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Write a short code segment. Make your code as short as possible. Create a macro named mDiv 8 that divides any two signed 8 - bit memory operands and produces a 8 - bit quotient. Assume the calculations are never exceeding 8 bits at any time.

IN SQL IN SQL 4 Write pl/sql program to print if an integer entered by the user is equal to the summation of its divisible numbers. * 15 (6 Points) Enter your
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Hey! I found this C++ code and MIPS translation on a computer science website while learning MIPS, and I had a few questions. C++ while (a[i] == k) i++; MIPS Loop: sll $t1, $s3, 2 # $t1 = 4i add $t1, $t1, $s6 # $t1 = address of a[i] lw $t0, 0($t1) # $t0 = a[i] bne $t0, $s5, Exit # exit loop if save[i] != k addi $s3, $s3, 1 # i++ j Loop Exit: ...

Computer science. Why might a class need to implement a destructor? Write your answer her
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Q2: Draw a use-case diagram and a set of activity diagrams for the process of buying glasses from the viewpoint of the patient. Th e first step is to see an eye doctor who will give you a prescription. Once you have a prescription, you go to an optical dispensary, where you select your frames and place the order for your glasse for a fitting and
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Consider the following tables: Employee(id, f_name, l_name, department_id, salary) Manager(id, e_id) FK: id references employee(id), FK e_id references employee(id) Write a SQL select to find the employee name of people whose is managed by someone with the manager id 782.

Calculate annual salary for a monthly salary of 2 0 0 0 in python

Q1. int a, b, c; b=10; a=b; c= b; i. What does each of the above statements do ? ii. What are the values of a and c at the end of above code segment ? What is the difference due to ? What is the difference between statements 3 and 4 in the above code segment ? Q2. Write a C program that returns the stopping time and distance given initial velocity

Sophia is putting together a training manual for her new batch of employees. Which of the following features can she use to add a document title at the top of each page? Group of answer choices References Page margin Heading style Header and Footer

in the following statement, which operator is used first? while (H$10) O neither, the expression is invaild 0 cannot tell without the rest of the code | Question 39 2 pts Which line in the following program contains the header for the showDub function? eine inte 2 sing nanespace star 0 vold showDub Cint) cout eex return 0 endl 10 1 12 13 14 line 7
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use master go drop database PublisherTitleAuthor go create database PublisherTitleAuthor go use PublisherTitleAuthor go DROP TABLE authors go create table authors ( AuthorID char(11) not null primary key, AuthorLastName varchar(40) not null, AuthorFirstName varchar(20) not null, Phone char(12) null, AuthorAddress varchar(40) null, City varchar(20)

What does the term LAN stand for? Group of answer choices Local Autonomous Network Link Area Network Local Area Network Large Area Network

Draw Circuit of the following Boolean Expressions 1.) XI - (A+B)(C+D) 2.) X2- AC +D+BC+BD
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Pick an organization. Explain how they could use a chatbot to improve their services. What are the benefits of using the chatbot for this purpose? Are there any issues that will need to be resolved

8 2 5 9 A is configured in AEOI with fully nested interrupt mode. It uses default priority levels. If the contents of the IRR and IMR registers are the following, determine the content of ISR register after priority resolution
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