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Databases Questions and Answers September 13, 2020

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Artificial Intelligence Assume you have a document collection as follows: D1 = Shipment of gold damaged in a fire D2 = Delivery of silver arrived in a silver truck D3 = Shipment of gold arrived in a truck Now after removing stop words and performing stemming, compose vector space document matrix A using tf-idf weighting. Based on A, perform

i need a step by step solution 2 . 3 Construct a logistic regression model using the following \ table [ [ x , 0 . 9 5 0 , 0 . 5 7 2 , 0 . 9 1 5 , 0 . 9 2 0 , 0 . 5 2 0 , 0 . 7 8 1 , 0 . 4 7 9 , 0 . 4 6 1 , 0 . 8 7 6 , 0 . 7 0 0 ] , [ y , 1 , 0 , 1 , 1 , 1 , 1 , 0 , 1 , 1 , 0 ] ]
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Consider the stream cipher construction 3 . 3 1 . Let n = 2 5 6 . Alice sends 3 plaintext messages m 1 , m 2 and m 3 of length 1 0 0 0 bits, 2 0 0 0 bits and 3 0 0 0 bits respectively to Bob. What is the total length of the ciphertext communicated from Alice to Bob?
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In this project, we are going to build a discrete - time event simulator to simulate two interactive components of an operating system which are the CPU and the Disk. The goal of this project is to assess the performance of those two components under multiple workloads ( by changing the rate of arrivals of processes - the higher the arrival rate,
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Consider the Initial Value Problem: $$ \begin{array}{111) x_{1}^{\prime & =6 x_{1}+3 x_{2} & x_{1} & =8 x_{2}^{\prime} & =-15 x_{1}-6 x_{2}, & x_{2}(0) & = 7 \end{array) $$ (a) Find the eigenvalues and eigenvectors for the coefficient matrix. $$ \lambda_{1}=\square, "overrightarrow{\boldsymbol{v}}_{1}=\left[\begin{array}{1} \square \square
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Convert the following switch-case code to an if-else code. Refer to Figure 1. 1 switch (colour) 2 case 0: 4 printf("red "); un case 2: 6 case 4: 7 printf("green "); 8 break; 9 case 1: 10 case 3 : 11 case 5 : 12 printf("blue "); 13 break; 14 default 15 printf("yellowin"); 16 break: 17 1
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undefined Which is the time complexity of this pseudocode? func do Something(n) { if (n
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Which of the following are three valid types of outer join?

*Answer Quick within 25mins thanks* For the array m = 10:24: 1:3:91: select ALL of the following code that would change the dimension of m. m(3) = 0 m(1.2) = 0 None of these answers m(1.2) = 0 m(2) = 0
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Can someone please help me on my C code. I have been working on this programming lab, but still stuck. I've appreciate it. The semester project Library Book Management System will be based on the data type struct book as defined below. struct book{ int ID; char Title[50]; char Author[50]; int SubjectCode; int BorrowingAge; char BorrowerName[50];

A computer system has enough room to hold four programs in its main memory. These programs are idle waiting for I / O half the time. What fraction of the CPU time is wasted ( assuming no time for a context switch ) ?

in every program there is a function called __________. Group of answer choices stdio.h DoIt() main user-defined

Hello, I need help with my C++ program assignment, it's based on the book, C++ Programing 7th Edition . Background Abstraction is the performance of a task, or storage of data, by a sub-class in a manner that hides the details of what is being done from the parent class. In other words, the functions performed by methods and the data stored in
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When should you use a robots.txt file?

Question 1 : Implement a Python class representing a geometric shape, with methods to calculate its area and perimeter. Question 2 : Implement a Python socket program to create a TCP server that echoes messages received from clients.

Task 1. Create a new webce of one page EXACTLY s shown in the wonde 2. Your website should be stored. You thoudere What is the website the combination of The rame of the water the page should be UTF-8 compatible The page should totally fresh ach 30 Sout your webine na talder 4. Create a riped to adboard Scientific Facts Water Fact 1 Water 0,01
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# 3 . Ex . 6 . 6 . 6 Show the result of Exercise 6 . 6 . 4 ( see below ) assuming collisions are handled by quadratic probing, up to the point where the method fails because no empty slot is found. ( a ) Draw the 1 1 - item hash table resulting from hashing the keys 1 2 , 4 4 , 1 3 , 8 8 , 2 3 , 9 4 , 1 1 , 3 9 , 2 0 , 1 6 , and 5 , using the hash
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Tower of Hanoi The classic example of a recursive solution to a relatively complex problem is the Tower of Hanoi https://en.wikipedia.org/wiki/Tower_of_Hanoi - which is taught in every Computer Science program and in a lot of programming classes. As you add disks the solution becomes more complex, but it is a simple repetition of moves used in the

Consider distributing a file of F bits to N peers using a client - server architecture. Assume a fluid model where the server can simultaneously transmit to multiple peers, transmitting to each peer at different rates, as long as the combined rate does not exceed us . a . Suppose that u s N dmin. Specify a distribution scheme that has a
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(Python Programming) I can't get my code to work.Write pseudocode for the program that computes the first and last digit of a number. For example, if the input is 23456, the program should print 2 and 6. Use % and log(x, 10).

Assume you are working as an employee for an engineering company and are paid by the hour. Every two weeks, you turn in a timesheet to your supervisor, and three workdays later, your paycheck is direct deposited into your checking account. List at least three different possibilities of the following: Entities : 1- 2- 3 Data Stores: 1 - 2- 3
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Use modular exponentiation to compute the value of 83627264275372 mod 277, while showing all steps. (Note: 277 is prime)

A sequential network has one binary input x(t) and one binary output y(t). The network produces y 1, whenever input pattern x(t - 3,t)- 0101 or 1011. Other- wise, the output y-0 (i) Draw the state diagram. (ii) Write the state table. A sequential network has one binary input x(t) and one binary output y(t). The network produces y 1, whenever input
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Foundations of Algorithms n fours Problem Description Four fours is a mathematical puzzle. The goal of four fours is to nd a mathematical expressions for every integer number from 0 to some maximum, using only a limited set of operators and the digit four. In this assignment, you can use only addition(+), subtraction (-), multiplication (*),

In the code shown below, Calculate the address of both arr1[1] and [arr2+2), where the address contained in ds is 1AC5h. Show your work in detail. .data A db 3Fh arr1 db 11, 13, 20 arr2 dw 1113, 1234, 1512, 1110 .code Mov bl, A Mov al, arr1[0] 1 A B
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xxxxxxxxxxxxxx LabProgram.java, Tests.java, Gradebook.java, and TestUtility.java are marked as read-only. you can only change CourseGradebook.java. Also, I have written the code of CourseGradebook.java, please fixed for me and give me the correct code. XXXXXXXXX Tests.java: import java.util.*; public class Tests { public static boolean
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C++ Assignment1A: Math Mad Libs: In traditional Mad Libs, youre given a paragraph of text with blanks; you then fill in those blanks to create an amusing or silly story. In this program, we will do the same thing - but with numbers! You will print out the following equation as a string literal: x + (y/z) *w = ? You will then prompt the user to
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Which of the following statements are true? In PC relative addressing mode, the PC and constant need to be added to calculate the branch address. II . In immediate addressing mode, the operand is a register. Neither I nor II Both I and I are true Only 1 Only 1 1
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the advantages and disadvantages of the different types of media - physical and wireless

What is the key reason to implement cloud computing into one s personal and / or business data and information processing?

Part III: Recursive Algorithms (30 pt.) Given the following recursive algorithm: procedure foo(x, y) Trput: x: integer, y: nonnegative integer Output:?? if y--e then return x else return (foo(x, y-1)) 1. (8 pt., 2 pt. each) Trace algorithm foo for each of the following inputs: .x-1 and y-1. x-2 and y-3 . x-3 and y-2. .x-4 and y-e. That is, show
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Question 1 The scenario below describes the circuit and device repair function of an organization. Read the scenario, then follow the subsequent instructions. The average time it takes for the organization to completely resolve device or circuit failures is 1 5 hours, from the moment the problem occurs to the time that the device or circuit is

Write this down using computer f Midpoint cf Class boundary b Class 21-27 28 - 34 35 24 31 9 5 38 41 42 - 48 49 - 55 6 2015-27.5 15 27.5-34.5 20 34-541-5 27 4.5-48.5 30 48.5 - 55.5 7 45 , 3 52 N=30
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There is a Java code System.out.println("foo=" + foo + ", bar=" + bar); Use Arduino code that would print an identically formatted line print the same message in serial monitor display in IDE

What is the main function of Spatial Dropout technique?

Question in Computer Science Please Give Correct answer im preparing please otherwise I will dislike 3 6 .

Consider the assembly code below 0000| SETB C 0001| MOV A,#08AH 0003| RLC A What is the final hexadecimal value of A? (Fill in the blank) Consider the assembly code below 000| CLR A 0001| MOV A, #03H 0003| ADD A,#02H What is the final hexadecimal value of A? (Fill in the blank) Consider the assembly code below CLR A MOV A, #0BH SUBB A,#01H What is

Draw a PDA for L={a b^n a | n>=1} U {a^2n b^n | n>=1}

Write the MIPS assembly code that corresponds to the pseudo code below. Assume that the address for integer i is baseaddress+4 and the address for a[0] is baseaddress+8. Assume that the baseaddress is stored in $gp. The code initializes i to 0; it then iterates from i=0 to i=4, setting a[i] = 2i in each iteration. To make your code efficient, i
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Answer needs to be in c#. The car class has an issue in the code that i cant figure out. i added better pictures. Grading elinas Dobugines i When you hroe compiofed is statie volat Hosir? bution to reserd your mese. yourcar coleril paurcat fruse rertucres. Cuipurince thesincar colog. toifoes artel. 1 1 Elars chr privete steins oviar pityath
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Syntax Analyzer Consider the following grammar G: T-int bool where S, T, V are nonterminal symbols, int, bool, id. ; are terminal symbols, and is the empty string Problem 1 Construct the canonical collection of LR(0) sets of items for this grammar G. Show your work for partial grade. Note that you have to use the augmented grammar G, with a new
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Using the following implementation of Tree in java class Node { public int iData; // data item (key) public double dData; // data item public Node leftChild; // this node's left child public Node rightChild; // this node's right child public void displayNode() // display ourself { System.out.print('{'); System.out.print(iData); System.out.print(",

Algorithm Question: Can a kingdom in which 9 roads lead out of each city and roads intersect only in cities have exactly 200 roads

C++ PLEASE Define a function PrintValue() that takes two integer parameters and outputs the sum of all odd integers starting with the first and ending with the second parameter. End with a newline. The function does not return any value. Ex: If the input is -5 2, then the output is: -8 Note: Odd numbers are not divisible by 2. #include using

Write the word or phrase that best completes each statement or answers the question The following declaration is used throughout this example: double [] sales = new doublet [10]; int index; double largestSale, sum, average; Write the code to do the following: a. Initialize every component of the array to the value 0. b. Read data from the keyboard
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5. Show a complete parse, including the parse stack contents, input string, and action for the string id tid*idtid, using the grammar and parse table in Section 4.5.3 of Sebesta. 5. Show a complete parse, including the parse stack contents, input string, and action for the string id tid*idtid, using the grammar and parse table in Section 4.5.3 of
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Database management system question please answer within 30 mins Entity Relationship Consider a triple association (K) among X, Y, and Zentity sets, where X and Y each have a key constraint and X has 100% involvement. X has two characteristics, x1 and x2, with x1 being the key; Y and Z are comparable. K does not have any descriptive properties.
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1.Which of the following shows a static method call? Group of answer choices -this.setVal( 10 ); -circ.circumference(); -Math.PI -Integer.toString( 100 ); -scan.next(); 2.If both Person and Directory implement the Printable interface, which of the following lines would not compile? Assume both classes have constructors without parameters. Group of

Based on the information provided, can you conclude that more students took naps on week days than on weekends?

Match the terms with their respective definitions or descriptions MATLAB code that accepts input Scripts arguments and produces output ( s ) A sequence of MATLAB commands Functions ( general ) Functions that exist within the MATLAB environment and can be Built - in functions called any time they are needed These are functions that the user User -
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What does the HTML tag designate in an HTML document? a. show photos b. personal data c. new paragraph d. print command

QUESTION 1 The Retail Shop Management System is a system designed to manage, order, arrange, and sell goods for a retail shop in Dubai Mall. The Retailer checks for the availability of the items in the store. If an item's stock is less than a specified value, then the retailer places an order for goods from a supplier. When the items are received
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i have created a Java program in Eclipse, it manipulates data and outputs a new file.txt when i run it in Eclipse it works perfectly, however when i get the executable .jar file and run it using "java -jar filename.jar" in windows cmd it works perfectly, but it doesn't output the file that it does inEclipse. i'm lost here i don't know what's the

Draw out a context diagram and level - 0 for the following dentist office system. Whenever new patients are seen for the first time, they complete a patient information form that asks their name, address, phone number and brief medical history, which are stored in the patient information file. When a patient calls to schedule a new appointment or

F ( A , B , C , D ) = ? ? ( 0 , 2 , 3 , 5 , 7 , 8 , 9 , 1 0 , 1 1 , 1 3 , 1 5 ) find all the Prime Implicants and essential prime implicants
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Consider the following php code file C:\xampp\htdocs\cse482.php. Assume that webserver points to htdocs as root and there is no syntax error. Numbers on the left side denote line number. (a) Is there any problem with this code? [1] (b) What will it display on the first visit? [3] (c) What will it display on the second visit by the same browser as

can som one correct the errors in the below program: Q) Many gas pumps have displays that spin digits (either analog or digital) while the gas is being pumped into your cars gas tank. The displays digits change to indicate the amount of gas in the tank and the current price. Write a program that displays the spinning of the digits. Your

Using the same iterative approach as that used to merge two sorted lists , complete/fix the implementation of the following function named intersection() for computing the intersection between two given ascending order sorted sequences , seq_a and seq_b such that the worst case performance of the function is ()O(n). You should not just consider
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I need help with this urgent please. In the main program Create a dynamic object of your Assignment 1's class" and store its memory address in a pointer. Read user input, and use it to set the values in each of the object attributes (variable members). Display the values of the object attributes. (optional) Display any other calculated property
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2. Insert following records using insert command to Student Table. Student SID 345 234 451 239 SNAME BADAR SALIM ASMA AZZA AGE 19 23 34 45 SALARY 1500 1300 760 930 ADDRESS MUSCAT MUSCAT SOHAR MUSCAT GENDER M M F F DOB 23/06/1991 27/03/2005 20/01/1999 30/11/2004 Write SQL queries for below questions. a) Change the address of Salim from MUSCAT to
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Interpreting a TM and it's language help? Exercise 8.2.5: Consider the Turing machine Informally but clearly describe the language L(M) if consists of the following sets of rules: (af, B, R)
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In a CSMA / CD network with a data rate of 1 0 Mbps , the minimum frame size is found to be 5 1 2 bits for the correct operation of the collision detection process.

Step 1: Write a program that reads a list of names from a file and constructs an ordered list. For example, if the input text file is: Shai Tom Jim Aaron Barbara Beth Fred Jack Jarred Jill Amar Ralph Jill Hillary it should create the following ordered list. Print the contents of the list: [Aaron, Amar, Barbara, Beth, Fred, Hillary, Jack, Jarred,

Develop an Entity-Relationship model for the purchasing requirements described below. 1. The purchasing department of company issues purchase orders (PO) to its suppliers. 2. Each PO is for one supplier. 3. Each PO has one or more line items (PO LINE ITEM). 4. Each line item belongs to one PO. 5. Each line item is one product from a supplier. 6. A

Consider the code and output below: 1 class Food 2 public: 3 int getValue() { return *ptr; }; D 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Foo() {cout
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Draw a Use case Diagram for an ATM machine withdrawal. it needs to have at least 1 include and extend case
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Q 2 Identify the regular languages 2 Points For each of the following languages state whether it is regular or not. If L i is regular, prove it by drawing either a DFA or an NFA that recognizes it . If the language is not regular, give an argument in plain language why there is no DFA or NFA that can recognize it . For each question, assume = { a
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need help solving this problem using Java thanks eries) Write a program to sum the following series: 1 3579 11 3 579 13 95 97 97 99 Loops
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IX. (1) Suppose that there are two parallel planes $$ X-2 y-2 z=5, X-2 y-2 z=8 \text {. } $$ Find the distance between them. (2) Sketch the rough graph of the following quadric surface: $$ \frac{x^{2}}{16}+\frac{y^{2}}{4}+\frac{z^{2}}{36)=1 \text {. } $$ X. Show that the limit $\lim _{(x, y) ightarrow 0,0)} \frac{x^{4}+2 y^{4}} {x^{4}+y^{4}}$ does
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Please check my C++ code, I need this program to loop through and check all possible combinations until the code that comes out is 872159; /* */ #include #include #include using namespace std; string lockerCombo = "000009"; string twoOneCheck; bool lockerComboValid(); bool lockerComboValid(){ for (int i = 0; i < lockerCombo.length(); i++) {

Fragile X syndrome ( FXS ) is a genetic disorder. FXS is caused by changes in a gene called Fragile X Messenger Ribonucleoprotein 1 ( FMR 1 ) . FMR 1 usually makes a protein called FMRP that is needed for brain development . 1 . Human genome contains triplet repeats of CGG or AGG, the genome starts with GCG and CTG at the end. The number of

7. Consider the following pseudocode fragment to answer a-c sum:0 For x = 1 to 4 sumsum+x End-for a. b. c. What is the value of the variable sum after the third iteration? How many iterations will the for-loop execute? What is the final value for the variable sum after executing the for-loop
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4. Consider the bank database shown below. branch(branchname, branchcity, assets) customer (customer name,customer street, customer city) loan (loannumber, branchname, amount) borrower (customername, loan number) account (account number, branch name, balance) depositor (customerlame, account. mber) Give an expression in relational algebra for each
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int fun1(int x) { if(x < 1) return 1; else return x + fun(x - 1) +fun(x - 2); } System.out.println(fun(2)); System.out.println(fun(6));

You manage a group of 2 0 Windows workstations that are currently configured as a workgroup, You have been thinking about switching to an Active Directory configuration. Which advantages would there be to switching to Active Directory? ( Select two. ) Reduced need for specialized hardware Decreased implementation cost Centralized authentication
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Q 4 1 0 Points When working with files that are in more than one location, only one of which is physically present in front of you, what is the distinction between "local" and "remote"? Please explain...
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Constuct a Turing machine that starts with the symbol # in one cell, where all other tape cells are blank. The beginning position of the tape head is not known. The machine should halt with the tape head pointing at the cell containing #, with all other tape cells being blank.

I want to write a java code using recursion to calculate the total of pyramid ball

JAVA PLEASE! 1. Give an algorithm or a method for inserting an element into a priority queue implemented on a heap (array) 2. The following items are inserted into a BST: {3, 6, 5, 2, 4, 7, 1}. Show the constructed BST

You want to make an quantile data classification scheme. You want the classification scheme to have 4 categories There are 2 8 0 values to map. The data, Percent of Population Over 6 5 , ranges from 3 . 2 % to 1 8 % . How many values will be in each category? 4 0 1 4 . 8 1 8 7 0
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Theory, automata Give a machine that recognizes the following language and a regular expression that expresses it: {w | w is any number of occurences of 'ab'.} ={a,b} (Ex: , ab, abab, ababab, ...)
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Data _ _ _ _ _ _ _ _ occurs when the same data is duplicated in multiple files of a database. Question 1 0 options: discrepancy independence partitions repetition redundancy

In 2-3 sentences, why? (10). In a distributed system that may use either a centralized or distributed approach to mutual exclusion, what impact is experienced when we have station crashes? If station crashes are common, which approach would you use? Why
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Explain why using the t , z , or bootstrap tools are all reasonable in this testing scenario.

explain dijkstras algorithm with example ?

Write a program (in Q1.c) in which you consider the following structure: struct student { int id; int score; }; Implement the following functions and demonstrate their functionality using the calls already existing in main(): Write a function struct student* allocate() that allocates a contiguous chunk of memory for 10 students and returns the

Exercise 4 Projectile Motion General Write a program to provide information on the height of a ball thrown straight up in the air. The program should request as input the initial height h feet and the initial velocity v feet per second. The height of the ball in feet after t seconds is given by the formula: h + vt 16 t 2 . Note: this exercise is

Which model is also called as the classic life cycle or the Waterfall model? Question 2 options: Incremental development RAD model Iterative development Linear sequential development

What is the minimum possible weight of the spanning tree 2 . png Group of answer choices 2 0 2 5 1 2 1 6 1 5

Trying to figure out part B. For part A, I defined the entry was T(i, j) that returns the length of the longest string per the above constraints of two smaller strings of X and Y going to xi and yj. For part B, I am trying to determine what T(i, j) means and I have two cases: where the ith character in x equals the jth character of y, then I take
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(50 points) Create a Matlab function that, Takes as input: a function "f", its derivative fderv, the endpoints of an interval a and b. Checks if a b changes the value of a with the value of b and vice-versa. If a = b the function should error out using the "error("an explanation for failure) command of matlab. Generates an array x slicing the
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Explain the following A - how the cache misses can be reduced? ( 8 marks ) B - what is thrashing and how to solve it ? ( 7 marks )

I-Mem Add Mux ALU Regs D-Mem Sign-Extend Shift-Left-2 200ps 70ps 20ps 90ps 90ps 250ps 15ps 10ps Figure 1: Pipeline datapath with control signals identified 1)If the only thing we need to do in a processor is fetch consecutive instructions (Figure 1), what would the cycle time be? 2)Consider a datapath similar to the one in Figure 2, but for a
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Your task is to design and implement a circuit in hdl which takes two 2-bit numbers as input and produces a 3-bit output. The circuit has 6 inputs (f1,f0,A,B,C,D) and 3 outputs (E,F,G). The function of the circuit is determined by two of the inputs f1 and f0. The truth tables below define the operation of the circuit for each combination of f1 and
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1. A Company is planning to undertake a project requiring initial investment of $500 million and is expected to generate $100 million in Year 1, $130 million in Year 2, $50 million in year 3, $90 million in Year 4 and $220 million in Year 5. Calculate the payback value of the project. 2. Calculate the payback period of a business investment of 10
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Suppose you would like to know the ip address associated with a website using nslookup. You will first send a DNS query message to your local DNS server with an RTT of 6msecs. The local DNS server forwards this message to the root DNS server with an RTT of 50msecs which returns a list of IP addresses for top-level domain servers responsible of

package lab2; /** * A RabbitModel is used to simulate the growth * of a population of rabbits. */ public class RabbitModel { // TODO - add instance variables as needed /** * Constructs a new RabbitModel. */ public RabbitModel() { // TODO } /** * Returns the current number of rabbits. * @return * current rabbit population */ public int

Which technique is used to reduce the complexity of a model by combining multiple simpler models? a ) Bagging b ) Boosting c ) Stacking d ) Pruning

be written in complete English sentences and paragraphs directly in Canvas. The paragraph prompt below explains the written response topic and requirements. At the beginning of CSE102, we learned how Hardware and Software worked together with 4 Functions, making computers capable of creating, saving and re-using meaningful information. Explain how
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Unix In a script.sh - Take three arguments: a directory, a file pattern, and a search string - Look for the search string inside the files determined by the directory and the file pattern. - Print the number of files that contain the pattern - Print the names of the files that contain the pattenumrn - Calculate the average words per file in all

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