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Databases Questions and Answers February 04, 2021

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database management 2 5. (10 points) Create a class called Message that models an email message. A message has a recipient, a sender and a message text. It also has a Class/Static variable called numMessage. a. An email message has three properties: sender, recipient and text. b. Write a constructor that takes a sender and a recipient as
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Write the SQL command used to create the table movies mysql> DESC movies; | Field | Type | Null | Key | Default | Extra +- | auto_increment | id | int(11) | NO | name | varchar(25) | YES | stars | varchar(100) | YES | PRI NULL | NULL | NULL mysql> SELECT FROM movies; | id | name | stars +-- 1 | Finding Nemo | Nemo, Dory, Marlin 2 Zombies | Meg
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Activity It's 2 pm on a Saturday and you have 4 hours to accomplish the following: Grocery shopping Fx broken sunglasses Shower / grooming Fill up gas for car Visit parents Pickup dry - cleaning Do laundry Get dressed for dinner Wash car Purchase birthday gift for sister Soccer game for the kids Make dinner plans Have lunch Submit bill payments
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Which of the following is the name of J . S . Bach's famous group of concerti grossi? The Four Seasons The Brandenburg Concerti The Leipzig Portfolio None of the above
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ArrayLists Write the lines of code needed to do each of the following tasks. (a) Declare a ArrayList object a with an initial capacity of 10 Integer objects. Next, append the integer 55 to a using the add method. (4 points) (b) The get method can be used to retrieve elements from an ArrayList. Using this method, find the sum of the first and last
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Question 2 2 pts The use of politically correct language is unanimously accepted in the discipline of communication as a positive thing because it removes bias from language and helps people communicate more clearly. True False
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A slide transition is an effect that occurs when one slide _ _ _ _ _ the screen and another one appears. A . appears B . leaves C . A & B D . none of the above

Prove that there is no Mealy machine that reverses an input string, that is , Me ( s ) = transpose ( s ) .

Which part of the URL indicates the location of the resource on the web server? 1 point Scheme Route Server name Internet address

Create a new project for an 8 - bit full - adder by 1 ) instantiate 1 - bit full - adder 8 times and 2 ) performs 8 - bit addition directly. Synthesize the designs again and retrieve from the analysis & synthesis report the Combinational ALUT usage for logic to map the 8 - bit full - adders to the FPGA. Compare and comments on the results. Create

It enables the programmer to concentrate on the algorithms without worrying about all the syntactic details of a programming language Pseudocode Complier Linker Loader
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please answer using C++ 4.21 LAB: Varied amount of input data Statistics are often calculated with varying amounts of input data. Write a program that takes any number of non-negative integers as input, and outputs the max and average. A negative integer ends the input and is not included in the statistics. Assume the input contains at least one
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4 5 . You have a network consisting of four switches, all configured with the same bridge priority. Which switch will be elected the root bridge? Select one: a . 0 0 1 1 . 0 3 ae . d 8 aa b . 0 0 2 1 . 0 2 fa . bdfc c . 0 0 4 1 . 0 6 1 1 . 1 1 1 2 d . 0 0 8 1 . 0 2 3 a . b 4 3 3

What does productivity software include?

( 6 0 Points ) E = { 0 , 1 } . L is the language contains strings consisting of 0 and 1 that do not contain 0 0 0 . ( a ) ( 1 0 Points ) Give 3 sample strings in L . [ ANSWER ]

Given the following risk severity matrix, where would you place each risk A, B, C, D, E? (Round to the upper category when on a boundary.) Risk exposure Impact Likelihood $400K Risk description A. Critical personnel leaving the project B. Late delivery of widget$600K subsvstem C. Poor estimating 50% 70% 90% 5% $300K D. Poor control of cost and
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Technology experts in the area of user - interface design specialize in technology for competitive advantage. True False
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Give an example of a weighted graph for which the minimum spanning tree is unique. Indicate what the minimum spanning tree is for that graph. Give another example of a weighted graph that has more than one minimum spanning tree. Show two different minimum spanning trees for that graph. What determines whether a graph has more than one minimum

Among the following sectors , which one is more likely to face high profile cyber - attacks? banking education No answer text provided. non - profit
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Members that are protected in the super class are visible in the derived class. Group of answer choices True False

Your assignment is to create a Web page that welcomes the user to the page, displays the current date with time and the hours and minutes left in the day. The requirements of your program are as follows: Include a comment in the code that includes the assignment name, your name and the date The web site title is Unit 5 Graded Exercise 1 Include a
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Question 3 [20 marks]: We have a class called electronic_device that shows the information of an electronic device with two attributes: serial_number and year_built. The classes phone and laptop are inherited from electronic_device. We have another class called smartphone that inherits from phone class. The code is provided bellow: #include using
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Name one of the main challenges faced by knowledge engineering? Providing the correct data as input for AI systems. Finding time to meet with an expert. Processing images and videos. Creating an artificial brain.

if cyber technology transforms these ideas, then we can conclude that CEIU? Finally, consider whether cyber - technology requires an entirely new system of theories and concepts that make up a moral system. 2 b . Cyber Ethics requires new moral system What assumptions about the nature of cyber technology and morals are implicit and explicit in the
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1. In this lab, you will work with nested loops drawing stuff with the turtle. In IDLE, create a new Python program. 2. Import the turtle and random libraries 3. Create a main() function that does the following: a. Initialize a variable for a width of 50 b. Create a turtle object (and if you want, you can set the speed to zero and hide it) C.
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One can generate a random integer using the random module as follows: i import random random.randint (1 ,10) 2 n Here, we are importing random and using the randint() function to generate random number between 1 and 10. You will use that information in what follows. First, you will create a while loop that loops indefinitely. To do so start the
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Suppose that you are a software manager and going to tracke the following project. Your organization is a CMMI based. State that how different 13 levels of project tracking of CMMI will help you while achieving the best quality? Note : Dont write the CMMI tracking guidelines. Apply them on the following project? (10 Marks) " The U.S. Marine Corps

An office manager decided to assign a 3 letter code to all active files. Using the 2 6 characters of the English alphabet, what is the maximum number of files he can possibly code?

/** * * void addFront( double ) A method to add a new element at the front of the sequence and make it the current element. */ public void addFront(double){ //write code } /** * A method to remove the element at the front of the sequence. If there is only one element, remove it and make the current element null, otherwise make the current element

11. Using the method of round to the nearest even, round the following to 3 decimal places: (2 points) a) .0101010111 b) 11110111
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In C /* SpMV-based BFS implementation input parameters: These are 'consumed' by this function int** int_array input array representing the adjacency matrix int rows # of rows of the adajcency matrix int cols # of cols of the adajcency matrix int source source vertex for the BFS These are 'produced' by this function int* color color array int*

Why is consensus important for data in a blockchain?

Which of the following is NOT a disruptive technology for financial institutions? Cryptocurrency Artificial intelligence Blockchain DLT ( distributed ledger technology ) Online Streaming services All of the above are considered to be disruptive technologies for financial institutions.
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Construct a dfa that accepts the language generated by the grammar S abA, A baB, B a A | b b . Help me work the problem to get the picture given.
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PLEASE ANSWER IN JAVA PLEASE ANSWER IN JAVA PLEASE ANSWER IN JAVA Assume we have already defined a variable of type int called num with the following line of code: int num = ???; // 'num' can have any int value TASK: Print a Triforce composed of 3 centered triangles created with num asterisks (*) on the bottom row, num - 2 asterisks on the next
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What is its asymptotic variance of ?

Compared with commercially licensed software, open - source software
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Malinformation is content that is intentionally false and design to cause harm while disinformation is genuine information that shared with an intent to cause harm. True False
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Corporate PC criteria include: Operating system ready Solid performance at a reasonable price Connectivity All of the choices are correct
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IBM was the dominant computer company during the "mainframe era" and its mainframe business is still the major source of its income. IBM was the dominant computer company during the "mainframe era" and its mainframe business is still the major source of its income. True False

Ex.1 *A method that calculates an average yearly salary. 1. The calculation depends what type of job it is: a) If the position is part time 20 hours is determined. b) If the position is full time 40 hours is determined. * Hint: Given an hourly salary to calculate a yearly salary we * use the following formula: totalYearly =
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Nonportable elements, such as hearths, or architectural elements, such as walls, that are preserved in the archaeological record are known as ecofacts. features. infrastructures. artifacts. fossils.
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Create the following program: Write a python program to display the marks in the class of 20 students The marks of the students will be stored in a list or tuple (of your choice) Each element will be an integer between 0 and 9 (inclusively) The histogram will have a series of stars for each possible value of the mark A sample output if your marks
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Which of the following statements about client / server computing is not true? Group of answer choices The client provides the user interface. The bulk of processing occurs on the client. The client is normally a desktop or laptop computer. The server provides security, remote access, and user authentication. Computing on the Internet is based on

1 . 2 . 7 The _ _ _ _ address is the IP address of the router that the host will use to access remote networks, including the internet. default gateway DNS Subnet MAC
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Piecewise functions are sometimes useful when the relationship between a dependent and an independent variable cannot be adequately represented by a single equation. For example, the velocity of a rocket might be described by v ( t ) = { [ 0 , t 0 ] , [ 1 0 t 2 - 5 t , 0 t 8 ] , [ 6 2 4 - 5 t , 8 t 1 6 ] , [ 3 6 t + 1 2 ( t - 1 6 ) 2 , 1 6 t 2 6 ]
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9 . A string literal in Python must be enclosed in 1 . parentheses . 2 . single - quotes . 3 . double - quotes . 4 . either single - quotes or double - quotes . 1 0 . Short notes placed in different parts of a program explaining how those parts of the program work are called 1 . comments 2 . reference manuals 3 . tutorials 1 5 3 4 . external

design and algorithm Select all the statements below which are TRUE: n't2n-100 = (n2) 2564 Vn = (1) Question 5 what is the -notation for the expression below? Select the correct answer. (161g")
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Perform the subtraction operation, X - Y, in 8-bit binary using the 1's complement and 2's complement, for the following X and Y pairs: Note: change these decimal and octal forms to 1's complement or 2's complement. Don't forget to do each point in 2 ways: 1s complement and 2s complement a. X = (81)10, Y = (50)10 b. X = (3.375)10, Y = (5.8125) 10
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Write a program that allows users to input their monthly expenses and determine if they stayed within their personal budget for that time period. First, ask the user to enter the number of months they would like to input and their overall budget for that time period. Validate the user's input to make sure they enter positive values greater than 0.

Show that each of the ciphertexts ZOMCIH and ZKNGZR, which were obtained by shift ciphers from one word plaintext, has two different decryptions

BNF rules for simple integer arithmetic expressions: exprexpr + term term tem tem * factor factor factor (expr) | number number number digit | digit digit -0111213141516171819 EBNF rules for simple integer arithmetic expressions: expr - term { + term} tem - factor { * factor) factor (expr) number number - digit { digit} digit -0111213141516171819
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he example of bill - of - materials is an example of _ _ _ _ _ _ _ _ . Group of answer choices Unary relationship Binary relationship Ternary relationship None of these

i need help trying to do this Week 6 Assignment- Laravel Setup Install Laravel and Create a new Laravel Project 1. Create a new Laravel project with the following command composer create-project laravel/installer ccu_username a. Replace ccu_username with your ccu username 2. Change directories into your newly create directory with the following
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HELP I WILL THUMBS UP :) You have been assigned to lead a large software development project. The project has several elements which everyone considers to be high risk. In addition, some of the requirements are not completely defined. The customer contract representative is very interested in your companys ability to demonstrate quick results to

Given a table named universities which contains university data with these columns: name, address, Website, Type, Size. Return a SQL query that gives each type and the average size of each university of that type in ascending order. Note: You only need to type the SQL query. It does not need to be in quotation marks SQL 4 -- Write your query here.
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I created this div using bootstrap, I am running into an issue. I can't figure out how to adjust the length of the alert info, when I view it, the border is too close to the text, I need help creating some space between the borders and text from top and bottom. Is there a way to do it without css? I can only use bootstrap. I also need help

Question 1 9 ( 1 point ) A data modeler typically uses a of the entity being modeled. as the primary key foreign key combination key natural key surrogate key
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refers to the ability of a system to expand to serve a large number of users without breaking down. Group of answer choices Capacity planning Management future planning Scalability Guaranteed levels of service

According to usability consultant Jakob Nielsen, the audience s tendency to view webpages in an F - shaped pattern means that Group of answer choices the center of a page is where an audience starts reading a document. the left side of a page is always skipped by a reader. the center of a page must contain the most important information. the

Artificial intelligence ( AI ) is like electricity, because: a . AI is cheap and can be treated like a minor monthly operating expense b . AI is a commodity, and it doesn t make a difference from which provider it s sourced c . AI has the potential to transform countless industries d . AI is essential to power every device in the home

Using this code, how many rows does the grid have? #grid - container { display: grid; grid - template - columns: 4 0 % 2 5 % 1 0 % auto; }
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I've asked this question 3 times already and have been provided with the wrong answer each time. The question clearly says 10 commuters, not 6000 Ten commuters must decide simultaneously in the morning to use route A or route B to go from home (same place for all) to work (ditto). If a of them use route A, each of them will travel for 10a + 40
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this is the only information provided 2. Write a Matlab script file that prompts the user for the price per pound of reinforcing steel (rebar) and will output a table of the cross sectional area, weight per foot, and price per foot of reinforcing bars. The table shall be set up to provide output for the following bar sizes (#3, #4, #5, #6, #7 and
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(d) Let A={b,e,f,g},B={a,c,d,f,g,h}, and C={b,d,g}, over the universe U={a,b,c,d,e,f,g,h}. What are the results of the evaluations of the expressions C(AB) and (AC)B
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Question 5 [12 Points + 2 Extra Points + 3 Points] a- In a string of length n, how many of the following are there? Prefixes Suffixes Proper prefixes Subsequences Substrings
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You visited Moviepass.tv , a movie download service, and browsed the movie selections at the site. Three days later, oversized pop - up ads began to appear claiming you signed up for a three - day free trial but had not cancelled before the trial period had ended. The pop - ups demanded payment of $ 2 9 . 9 5 ; if it was not paid within 4 8 hours,
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aA corpus is a technical term for a collection of texts used to analyze a language and verify its linguistic properties. The first modern, computer - readable corpus was the Brown Corpus of Standard American English, compiled by Henry Kucera and W . Nelson Francis of Brown University. The Brown Corpus draws from American English texts printed in 1

rad od s t u v w x y z 0 1 2 3 4 5 6 7 8 9 +/-- bl tu 45678901234567890123 al 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 a od WXYZabcdefgh.1 j k l m n o p q r lu 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 al 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 ci od ABCD E F G H I J K L M N O P Q R S T U V b- 01234567 012345678901 122 89 8911 k-1 m no 6 b -4@A
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#include #include #include #include #include #include #include struct Item { enum class Type {sword, armor, shield, numTypes}; Type clasification; int bonusValue; }; struct Object { enum class Type { player, slime, orc, sprite, dragon, numTypes }; Type name; int strength{ 0 }; int health{ 0 }; int level{ 0 }; std::map inventory; }; std::vector
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What is a motherboard?

What are the four different kinds of feasibility that must be assessed? Why is the feasibility of a system reviewed during both the analysis and design phases?

How many phases are there in FP growth algorithm?

Provide the correct answer only. No explanation required. In general, as the number of instances N in the training data increases, do you expect the test prediction accuracy of QDA to improve, decline or be unchanged? be unchanged improve depends on the learning task decline
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Write a program that reads in the length and width of a rectangular yard (in meters) and the length and width of a rectangular house (in meters) placed in the yard. Your program should compute and display the area of the lawn around the house.

1 a . The early success of Microsoft was due... The early success of Microsoft was due to their application software which integrated seamlessly with their Windows operating system on which 9 0 % of all PCs ran. This unique product is also known as Microsoft's Multiple Choice resource heterogeneity. core competency. value chain. path dependence,
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This class of IPV 4 addresses are not publicly routable across the Internet C A D B
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How can the leading zeros detector in FiFigure 9 . 2 8 Floating - point addition - subtraction unit.gure 9 . 2 8 be implemented combinationally?
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Question 4 : Draw three levels of ANSI / SPARC model structure. Place the following users into your structure based on their functionality.
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Which SQL operator is used to combine multiple conditions in a WHERE clause?

Complete the program by entering the missing statements. Make sure program compiles correctly and submit code once done. Input: Student Name, Age Example Input: Mark, 25 Produce the following Example Output: Hello Mark. Your age is 25. ------------------------- void main() { String name; float age; cout <

1 average: this method takes 3 integers and finds and returns their average example: if the values are 3 , 5 , and 8 , then the method returns 5 . 3 3 . 2 max: this method takes 3 integers and finds and returns the maximum value example: if the values are 6 , 1 3 , and - 2 , then the method returns 1 3 . 3 isAllEven: this method takes 3 integers

3 - Suppose a multi - class logistic regression has been used as a model for digit recognition as shown below P ( Y = k | x = x ) = e x p ( w k T x ) 1 + l = 1 K - 1 e x p ( w l T x ) for k = 1 , dots, K - 1 P ( Y = K | x = x ) = 1 1 + l = 1 K - 1 e x p ( w l T x ) a ) Which parameters need to be estimated? b ) How many parameters in total need to
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What are the crucial aspects of secure message transmission in the context of cryptography?

Objectives: Perform time division multiplexing (TDM) and demultiplexing of three analog signals using Matlab. Requirements: 1. Sample the given analog signals and plot the samples using Matlab 2. Perform time division multiplexing of the samples using Matlab 3. Demultiplex the multiplexed signal and plot the samples using Matlab. Procedure: 1.
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What is the foundation of the application programming interface ( API ) economy?

Assignment Overview (10 points) Write a program that produces the following figure (which vaguely resembles a saguaro cactus) as its output using functions, nested for loops and string multiplication. Use a class constant to make it possible to change the width and height of the center trunk; the two side arms can remain the same. (The output
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Consider a rising clock edge that causes 3 0 0 0 to be written into the PC . After the address 3 0 0 0 is read into the PC , the 3 0 0 0 only propagates to the adder. True False
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Using MATLAB: The magnitude (norm) of a vector u = xi + yj + zk is calculated by. Write a MATLAB script that asks and accepts the x, y, and z values from the user and Command Window, and then returns the magnitude of the vector. The x, y, and z values must be entered as a single 1D array, i.e. [x y z] or [x; y; z]. Name your script as Norm.m and
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The company ABC has been planning for quite some time to replace its old ERP system. They have considered the buy-versus-make choice and they've decided to buy an off-the-shell package. They have also ensured that the budget includes an appropriate amount for the software, its implementation and any follow-on activities, as well as depreciation

#include using namespace std; //===================================================================== struct Node { int x; Node * left; Node * right; Node(){left = NULL; right = NULL;} Node(int d, Node* l = 0, Node* r = 0) { x = d; left = l; right = r; } }; //===================================================================== class Tree {

how do you write this in MIPS: num = 1 for i in range(0,10): print(str(num)) num += 1 so it prints : 0 1 2 3 4 5 6 7 8 9 10

Part 1 Adversarial Search (Points 3) MAX MIN MAX (16) 12 MIN 4 (13) (11) (10 (8 5 (10 8 (6 5) a) Compute the minimax value at each node for the game tree above. Copy the above tree into your answer sheet and show the value of each node. (1 Point) b) Use the Alpha-Beta pruning algorithm to prune the game tree above. You should draw an X through any
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How many * are printed in the following program? Type the number of times that * is printed in the given box. #include #include using namespace std; Bint main() { for (int i =0; i
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Use simulink to create model. Use matlab to create figures. This problem also requires the use of trim() and linmod(). 1. This problem describes the immune response triggered by encountering foreign antigens. This is called the cytotoxic T cell or CTL response. Suppose that z eliminates infected cells. There are 4 variables: uninfected cells, x,
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Using the Big O notation, estimate the time complexity of the code below. Briefly explain how you derive your answer. int count = 10; while (count < n) { count = count * 3; }

The runtime of an object-oriented programming language is naturally more complex than the one of a classic programming language. Select one: True False 9

Two computers using TCP / IP can communicate even if they are based on different hardware and software platforms True False
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*** I do not want Anonymous to answer. I have seen three different questions that he has answered with the same program which is wrong.*** 3. (10%) Please read the following code. (a) Add one line of C code that defines a macro, so that "main()" will call "foowithdebug()". (b) Read gcc command options about macro at

-- ************************************************************* -- This script creates the database -- for Labs 4-7 based on OM (Order Management) database -- **REVISED by PRP to remove some orders -- **REVISED by PRP to add artist table -- **REVISED by PRP to link employee table to orders --

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