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Databases Questions and Answers April 20, 2020

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Context Free Grammars Write a grammar rule for parsing if-statements. Specifically, you should consider the following: if-statements 1. a. b. C. Start with the if keyword, Require parenthesis around the condition, Can have any expression for the condition (you do not need to write a rule for expression), d. The condition is followed by the then
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in Assembly language X86 processors starting with _asm{} Project No. 4 (loop structures) Write assembly programs for each of the following. All functions must be written in assembly 1. Read a string of 10 'y'( for YES votes) and 'n'l for NO votes). Count the number of YES and NO votes and ten displayaccording to the frequency of the votes Sample
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X=1 Y = 0 Process 1 P(X) print('a') V(Y) Process2 P(Y) print('b') V(X) X=1 Y = 0 Process 1: P(X) print(a) V(Y) Process2: P(Y) print(b) V(X) true false - prints a first true false - may print back to back bb true false- will never print the same letter in a row true false - may print b only
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Use the Homework Template file for your homework responses. Don't forget to fill out the cover sheet completely including header and footer. Include a summary of what you learned in doing the assignment. The summary is worth 10 points, so be complete and thoughtful with your entry or you will lose points. Where written responses are requested,
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Using python complete the function definitions are provided below: Please avoid using any Python facilities/capabilities yet to cover in the course. U can use the pandas or csv module, use Path to fetch path locations. Please use expressive variable names. # YOU ARE NOT TO ALTER ANY GIVEN FILE IN ANY WAY, OR ADD ANYTHING # ANY FILE OR FOLDER TO

Trace selection sort on the following array of letters (sort into alphabetical order): After each pass (outer loop iteration) of selection sort, show the contents of the array and the number of letter-to-letter comparisons performed on that pass (an exact number, not big-O). Trace insertion sort on the following array of letters (sort into
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Objectives: Array Manipulations a) Initializing an Array b) Loading an Array c) Summation of an Array d) Unloading (printing an Array) Write an interactive program to prompt and enter scores for 13 students. Then have computer to calculate and print out scores and class average. Similar program is in your textbook. The program must produce the
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What is the output of the following program in a dynamically scoped language called DragonD? Assume big ( ) is called from somewhere else. function big ( ) { var x = 2 2 ; var y = 1 0 ; var z = 5 function sub 1 ( int x var y = 1 4 ; sub 2 ( ) ; } function sub 2 ( ) { var y = 3 ; function sub 3 ( ) { var z = 6 print x + y + z ; } sub 3 ( ) ; 3 sub
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l c++ What is the output of the following code fragment? (Assume the are not syntax errors) strings = "12790FGHIJK": intj - 10 for (int i - 0; i
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The following MATLAB code generates the analytic formulation of the Step-Response 2-1+z-2 of the filter characterized by System Function: H(2) = 12? 3 12; 121 > Yzs=syn(' (z^(-1) +2^(-2))/(1-(11/12)*7^(-1)-(1/6)*z* (-2) + (1/12)*7^(-3))) pretty (Hz) vzan = iztrans (Yzs) pretty.(yzsn) True False
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Consider the following code. Why would you get identifier not found errors? int main() { int num1 = 1; int num2 = 2; int total = 0; std::cout < < "total = " < < total < < std::endl; total = addition(num1, num2); std::cout < < "After addition(num1, num2), total = " < < total < < std::endl; } int addition (int a, int b) { int r; r = a + b; return r;

C code please Write a pseudocode (or C code) program that performs the following: Prints your name and student number Reads number of positive integers, finds and prints the largest even integer of them and counts its occurrences. Assume that the input ends when the user enters -1. Add your name, your University ID number as a comment at the
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Refer to the example that was discussed in the IP Addressing lecture where a large number of consecutive IP addresses are available from 198.16.0.0. Suppose that four companies A, B, C and D respectively require 4000, 2000, 4000 and 8000 addresses (requests arrive in that order). In the lecture, we covered the first three companies A, B, and C,

1. (120) Consider the employee database of Fig. 1, where the primary keys are underlined. For each of the following questions, give (1) a relational algebra expression, (2) a tuple relational calculus expression, and (3) a domain relational calculus expression. Note that each problem has 15 points with 5 points for each of the three required

CCEIMTYE108.2: Using Date methods Start Update the variable latestUpdate to the day 19 using Date methods. var latestUpdate new Date(2010, 3, 21); Your solution goes here* 4 Check Next
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Functional dependencies are similar to _ _ _ _ _ _ _ _ keys. Select answer from the options below foreign secondary primary useful

sql: Netflix is interested in finding out which MPAA Rating yields the highest average ratings. For this survey, they only use movies that are released after 2000 (including 2000). They are only concerned with MPAA Rating categories that have an average rating higher than 3.5. You should include ratings for movies with no MPAA Rating in the
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neral Posts Files Class Notebook Fill DB Lab Final Exa... 2 more 10 (Consider table employees with the following colunms (EMPLOYEE_ID, FIRST_NAME, LAST NAME EMAIL PHONE_NUMBER HIRE DATE JOB_ID SALARY COMMISSION_PCT MANAGER_ID , DEPARTMENT_ID) Declare a cursor that display department name, number of employees in each department. Your program should
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female and male. a) Is the graph connected? b) How many connected components are there? c) How many giant components does the graph have? d) How many paths of length 8 exist? e) Perform the breadth-first search for node 4. 1) Draw the distribution of distances of any two nodes for this graph 8) Does the small-world phenomenon hold for this graph?
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Theory of Computation please solve the following questions. you can check this book " an introduction to formal languages and automata 6th edition " " please solve all the selected questions " 6. Do Exercise 2 of Section 2.4 at page 72. 0,1 go, 91. FIGURE 2.16 2. Minimize the number of states in the dfa in Figure 2.16
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HUMBER Faculty of Applied Science & Technology inve" Lentory, apps, database NEST207 Assignment -1 C. Create users as given below with their respective primary and secondary group(s). Full Name Username Primary Group Supplementary/ Secondary group(s) John Terry jterry logistics Kyle Walker kwalker inventory Jane Doe jdoe management logistics,
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Which classification of attack type does packet sniffing fall under? Passive Active Inside External
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4. An 80386 system operates with a paged memory system of 4G bytes. Figure Q4 shows a part of the memory space of the system. The starting address of the page directory is nzH (a) Determine the physical address associated with the logical address 00803500H. (6 marks) (b) Memory overhead is required to realize the page system. What is the impact on
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MySQL SQL SUM() A sql-6-5.sql file has been opened for you. Write each of the following tasks as a SQL statement in a new line (remember that you can source the file to compare the output reference): 1 - Use the e_store database 2 - Select the total stock of all products in the products table. Alias the column name as total_stock. The resulting

Write a program to prompt the user to enter the first name and the last name and display the following message: Hello firstname lastname Welcome to Computer Programming with Python note: number of stars is 5 0
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JAVA A class roster has students in it, as shown below. A Student has a name, and an age. Complete the class public class Student { private String name; private int age; ... with A default constructor set methods for the two instance fields: for age it throws an IllegalArgumentException if the value is 150 Using the method setAge you have just

Consider the following Game Payoff Matrix that involves two players with three strategies: Game Payoff Matrix \ table [ [ , , Player 1 ] , [ \ table [ [ Player ] , [ 2 ] ] , , L , C , R
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(a) Find the Boolean expression for the output F. (b) Simplify the expression using the theorems and redraw the simplified circuit
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Program needs to be in C++ Please use the code below and make edits to it 2 /*** Given below are 3 classes that have functions missing. Both elecCourse_c and hssCourse_c are derived from course_c. 3 5 6 Make an array of at least 4 pointers (a mix of the types). Each pointer should be printed and use new to make them. 7 8 #include class course_c{ 9
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I posted questions one for client Side and the other for server Side. DRAW a flow chart for this program [ client Side ] __ PLEASE DONT DO IT BY HAND (use VISIO OR WORD) package client app; import java.net. import java.io. public class Clien App @param args the command line arguments public static void main (String args) throws IOException Socket
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Write a script that utilizes a for loop and creates an array of the form = [3, 9, 27, 81]. After using this script, write another that utilizes another for loop that sums all the elements in the array.

A Java program contains various pairs of grouping symbols, such as: Parentheses (and) Braces {and} Brackets [and] Note that the grouping symbols cannot overlap. For example (a{b)} is illegal. Write a program to check whether a Java source-code file has correct pairs of grouping symbols. Pass the source-code file name as a command-line argument
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Ariswer: This symbol is used as a delimiter for directories in a path
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Consider the following functions: int min(int x, int y) { return x = min(x, y); incr(&i, -1)) t += square(i); The function min is called times. The function max is called times. The function incr is called times. The function square is called times
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undefined 3- Declaring, instantiating, and using arrays In java, indicating the size of the array during the declaration is a syntax error (what is a syntax error?). So to declare an array in java you will only need a name and a type for your array, example: int[] foo; To actually create the array you will write the following: int[] foo=new
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Define and provide an example application of: a) Encoder b) Decoder c) Multiplexer d) Demultiplexer

C++ please 2.2 (Class) Implement a User class. Create the specification file (User.h) and implementation file (User.cpp). User class has the following attributes: char firstN ame [7]; char lastName [7]; and dateOfBirth as DateType. The following constructor and functions must be implemented in the User class: Default constructor User () Void

help me to write a code! thank you:) CIS 25 Spring 2021 - Homework #2 - Page 1 of 5 Turn In: 1. Exercise #1 - Due on Thursday, February 25, 2021 by 11:00pm Email Submission a) For each exercise, a package must be generated to include the following items: - Copy of your source file (C++ program)-your source file MUST BE NAMED as cis25Spring2021
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Which of the following is a valid color value in CSS ? Question 2 options: # 0 0 0 0 0 0 #red #fgfgfg aaaaaa Cffffff

please write using C++ language follow all steps please Write a program that performs the following tasks: 1-Define a function called Calc that: a. Accept an in value n then calculate the series: 2 3 4 n S =- + + + + 1 3 n - - 1 b. Then the function should return the result s. 2- Define a main function that perform the following: a. Define an
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What are the advantages of using digital signals over analog ones? Choose the correct answer(s). Physical quantities are naturally represented by digital signals. Digital signals are more robust to noise. Digital signals contains more information than analog ones. Digital signals can be easily stored
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Consider an HMM with three states A, B. and C and three observed outcomes 0, , and 2. The initial state is A with probability 1. The transition and emission probabilities are as follows. A B C 0 1 2 A| 0.2 0.8 0110.8 0.2 0 B0 0.8 0.2 0 0.6 0.4 C? 0.4 0 0.611 0.2 0 0.8 (a) Draw a picture of the HMM that shows all transition and emission
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Data Structure in C++ Using namespace std; In a bitonic mergesort, we use the same arrangement, except that the second sequence is sorted in descending order: the first half goes up, and then the second half goes down. This means that when we are doing a merge, sometimes we want to merge the results into ascending order, while other times we want

Including the initial parent process, how process are created by the program by in figure 3 . 3 1 ?

g. touch -m t1 -a t2 file1 file2 file3 . (4 marks) i. Implement a small getopt loop in your function to implement this command. Set the default times for the modify and access flags to the current time seconds since the epoch. Use the getopt loop to capture -m t1 and -a t2, if they are present where t1 and t2 are large integers representing ii.

T / F A physical memory address is a reference to a memory location independent of the current assignment of data to memory.

After reviewing Pillar 2 in The Information Literacy User's Guide ( previous item ) , respond to the questions using the Text Box provided. You do not need to provide complete sentences. A simple list or brief summ if appropriate for the particular question is fine. Describe what is meant by "identifying gaps" when assessing one's current
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Which of the following represents a digital form of information? a gas gauge a fax transmission a watch that displays time as HH:MM a page filled with English prose

PH 1 ( 7 0 % ) Calcula PI con la serie de convergencia lenta: 2 = 6 2 ( k = 1 N 1 k 2 ) 1 2 + 6 k = 0 N - 1 1 ( k + 1 ) 2 2 a . Escribe un c digo en Python - 3 donde el usuario alimenta N y reporta Pi con 5 cifras significativas X . XXXX . b . Note que los ndices de las sumatorias corren diferente. c . Una vez calculado , usa este valor para
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SAMPLE OF PROBLEMS: Program 9-16: Duplicates Arrays // This program uses a function to duplicate // an int array of any size. #include using namespace std; // Function prototype int *duplicateArray(const int *, int); void displayArray(const int[], int); int main() { // Define constants for the array sizes. const int SIZE1 = 5, SIZE2 = 7, SIZE3 =
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add two depth first search methods, one recursive and non recursive in my graph.java class. Eclipse File Edit Source Refactor Navigate Search Project Run Window Help D 100% Sat Apr 15 9:09:07 AM ROYAN HANSON a E workspace Java lab 13/src/dsf matrix forstudents/test,java Eclipse Quick Access Graph java Stack java D 'test java 23 3 class Test 4 csc
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Help with these 2 please. Its fill in blank for java 9. (10 points) Fill in the blanks so that the following method can do merge sort void merge (int leftFirst, int lettlast, int rightPirst, int righttast) int indexleftFirst int saveFirst leftFirst: while ((8.1) if ((8.2) tempArraylindex++] - alleftFirst++ else temprraylindex+l - atrightFirst++
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maker I model I type A 1001 pc A 1002 pc A 1003 pc A 2004 laptop A 2005 laptop A 2006 laptop B 1004 pc B 1005 pc B 1006 pc B 2007 laptop c 1007 pc D 1008 pc D 1009 pc D 1010 pc D 3004 printer D 3005 printer E 1011 pc E 1012 pc E 1013 pc E 2001 laptop E 2002 laptop E 2003 laptop E 3001 printer E 3002 printer E 3003 printer F 2008 laptop F 2009

please specify which answer is for which question.The firs pics are the problem and the pics that says (Q1,Q2,Qxxxx) are the questions ti be answered for the problem.Thank you Problem set 3. (max 20 points) We operate data on food-related expenditure and total expenditure for US households in 1995. The purpose of our study is to explain how the
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HELP ASAP please The length of the array below is 7. var daysOfWeek = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']; True False The syntax below is valid and follows the JavaScript naming rules and conventions. var final_result; True False
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As part of its due diligence efforts, the M&A team has determined that the following events contributed substantially to the bankruptcy of Island Banking services. 1. Company officers and managers were able to conduct criminal activities using company IT assets without detection. 2. The company did not have a disaster recovery / business

Please provide the c++ code and a screenshot of the working program. I really need this. Thank you You need to write a program to keep inventory for a ware store five different way You will write a program to store the inventory in d)an unsorted doubly linked list, (2) a sorted doubly linked an unsorted array, (4) sorted array, and (5) position
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Use the Java hierarchy you posted in week 5 (corrected based on any feedback you may have received). Add a user-defined exception that can be thrown by one of the methods as part of the validation or error checking. The main method should then create an instance of the class and call the method in such a way that the exception is thrown (e.g.

Write a program that input the AOE network of Figure 6.46 and outputs the following . A table of all events together with their earliest and latest times (ee, le). 2. A table of all activities together with their early and late time (I, e). This table should also list the slack for each activity and identify all critical activities (See Figure
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What are the main types of coaxial cable? Choose two. RG - 5 9 UTP STP RG - 6
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in swift The following is a an example of a Web API call. Identify the following components in the AP Call http://api.openweathermap.org/data/2.5/weather?lat-35&lon-139 a) Location where the webserver is deployed b) Method name c) Parameters and there values
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Question-6; What is SSL VPN? and explain SSL client-less, thin-client and tunnel mode full-client' A.B and C are the users in the network, consider the RSA Public-Key cryptosystem with [d.e] where [(d,n), (EA, n)] are the Private and Public key of user A: [(d,n),(CB, n)] are the user B. Private and Public keys, [(dc, n), (ec,n)] are the user C,
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What is meant by the term "scope of database" in law

4. (10 points) Translate the following algorithm into assembly language X=0 Y=5 WHILE Z= 5 X-X+1 Y=Y-1 Z-X+Y ENDWHILE
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Java help, please!!! Create a new package named program3 in Eclipse, and put all the classes in this package (right-click on a project New Package, type program3 as the package name). Now, add a class to the package (right-click on the package New Class, type StudentEntry as the class name). Write a class named StudentEntry that has instance
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Definition for the question class node { boolean data; node link; } Consider a structure using a linked list in which you added and removed from the back of the list. Using the node definition above, write the pseudocode for a member method add to this structure. Assume the existence of a front and back reference.

d) Let m and n be functions from the positive integers to the positive integers defined by the equations: m(x) = 4x+3, n(x)=2x-4 (6 marks) i. Find the inverse of m. ii. Find the compositions of nom. 1 1 01 a) Suppose that the matrix of relation Ron {1, 2, 3) is 0 1 0 li o o relative to the ordering 1, 2, 3. (7 marks) i. Find the domain and the
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2 void setup() 30 4 // initialize digital pin LED_BUILTIN as an output. 5 pinMode(LED_BUILTIN, OUTPUT); 61 31/ the loop function runs over and over again forever void loop 100 11 digitalWrite(LED_BUILTIN, HTOH); 17 turn the LED on (HTOH 16 the voltage level) delay(1000): 1 wait for second 13 digitalWrit(LED_BUILTIN, LOW); 17 turn the Dot by making
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13. Arguments to methods always appear within a. brackets b. parentheses c. curly braces d. quotation marks 14. Each time a method is invoked, the system stores parameters and local variables in an area of memory, known as which stores elements in last-in first-out fashion. a. a heap b. storage area c. a stack d. an array 15. You should fill in
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Please provide short answers to the following questions SHORT ANSWERS Please provide short answers to the following questions. Each question in this section is worth 5 points. Q3. What is the role of dimension tables in the dimensional model? Answer: Q4. What is the role of fact tables in the dimensional model
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Asymptotic complexity is irrelevant because it refers to computation times for very large input size which doesn t usually happen. b . Both the two functions

Give an algorithm that takes as input an undirected, weighted graph G = (V,E,w), with distinct edge weights w, and a subset of edges of S CE, which does not contain a cycle, and returns the spanning tree of G of minimum weight out of all spanning trees containing all edges in S. Prove that your algorithm is correct and give an explicit Big-O bound
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Consider the following analogy: You are an airport security screener. For every passenger who passes through your security checkpoint, you must decide whether to select the passenger for further screening based on your assessment of whether he is carrying a weapon. Suppose your null hypothesis is that the passenger has a weapon. As in hypothesis

Given the following filter What is the input-output relationship? y[n] = (bax[n] + x[n - 1]) + (cx[n - 3] + x[n - 4]). y[n] = b(ax[n] + [n - 1]) - (cx[n - 3] + x[n - 4]). y[n] = b(ax[n] + x[n - 1]) - (c + 1)x[n - 3]. y[n] = abx[n] + bx[n - 1] + cx[n - 3] - x[n - 4]. Given the following filter What is the input-output relationship? y[n] = (bax[n] +
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C# : Develop a WPF application that has a button to calculate an employees weekly pay, given the number of hours worked. An employee should have a first name, last name, age, and hourly consulting rate. You should be able to create an employee object and provide the hours worked to calculate the weekly pay. The application assumes a standard

According to the logical operation of contraposition the statemeit "All ravens are black" is equivalent to the statement "All non - black things are non - ravens," True False
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Write an expression to detect that the first character of userinput matches firstLetter. Learn how our autograder works 5 4 3 7 6 4 . 3 8 9 6 9 3 2 qx 2 zqy 7 import java.util.Scanner; public class CharMatching { public static void main ( String [ ] args ) { Scanner scnr = new Scanner ( System.in ) ; String userInput; char firstletter; userInput =
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a) In your own words, describe the difference between how an Array List implements the List interface compared to a Linked List
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Q 3 From an organization point of view, explain two benefits and two harms of internet censorship. Keep it simple! please do not copy, this q for Professional Issues in IT

in python please. Please show the output too **NOTE**: You may **NOT** use the string method 'split() for this problem, as it creates a 'list', which we have ... covered in class. Trust me; you'll love 'split(' all the more once you try this problem without it.. Write a function that accepts a single string, composed of words separated by spaces.
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Guess my Number Create a world containing an actor (your choice) and an environment (your choice). When the world begins to play, the actor selects a WholeNumber at random in the range 1..99. The actor then repeatedly asks you to guess the number. If you guess too high, the actors say Too high and if you guess too low, the actor says Too low. The

1. In a single-user system, determine whether buffering, spooling, caching, or a combination of these should be used for each of the following I/O scenarios. Explain your answer. a. A mouse used with a graphical user interface. b. A tape drive on a multitasking OS. c. A disk drive containing user files.

whats the subnet mask, prefix, increment, how is the chart filled out?
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Computer Science about lambda expression Answer the lambda expression with parentheses and the symbol i supplemented as much as possible 1. xy(ayz. zxy) 2. (2xyz. xy(xz))uvw
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Convert the following base ten values to their Two's complements notation using patterns of 8 bits. *I need help with understanding A-E please* D)-64 To receive full credit, you must show all the necessary steps leading to the answer. Circle the final answer(s). 1. Convert the following base ten values to their Two's complement notation using
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Solve with steps ORG 010OH MOV DL, BL MOV AH, 02H INT 21H MOV AH, 4CH INT 21H ORG 020OH OUT1 DB '23', '67,'51, 34s The output is: What is the output that will be displayed on the terminal ( program is executed? 7. screen) when the following ORG 0100H LEA DX, NUMI MOV AH, 09H INT 21H MOV AH, 4CH INT 21H ORG 0D D81'.2', 's'. 3-.'4. The output is:
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Can you please write gor me the steps EX16_WD_CH02_GRADER CAP_AS- College Placement 1.6 Project Description: You are the administrative assistant for the college placement office and have been given a document on transitioning from college to a career. The document needs to be formatted and made into a visually attractive handout for the upcoming
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phython problem, please help me with the indent too i have difficulty with the indent Write a Python function that takes in two lists and calculates whether they are permutations of each other. The lists can contain both integers and strings. We define a permutation as follows: the lists have the same number of elements list elements appear the
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Request solve following problem on alogrithms When working modulo q = 13, how many spurious hits does the Rabin-Karp matcher encounter in the text T = 294872235748 when looking for the pattern 22
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Question 28 (5 points) Given the conversion specifer: 96 10.2d identify the function of its parts The minimum number of digits to print Marks the start of the conversion specifier 2. 10 Display the value as a base 10 integer 3. 2 4. d The minimum number of characters to print
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2. Consider a program with 3 stages of execution. At first, we must execute 10% of the code, which is strictly sequential. Next, we can execute an additional 30% of the code, which can be split 2-way equally and executed in parallel. Finally, we execute the remaining 60% of the code can be split 4-ways equally and executed in parallel. Assume that

Kofi is a technology student studying Linux security. He knows that services protected by TCP Wrapper are filtered through rules. Because these rules can conflict, which directory does he find Linux considers first? Question options: /etc/hosts.allow /etc/hosts.deny /etc/hosts.ssh /etc/hosts.tcp

Question 15 Not yet answered Marked out of 1.00 Consider the value of i=48 & j=48 and give the output for the below python program while i
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[C++]. I need to implement the set operations intersection and relative complement. I've implemented union and subtraction. PLEASE DO NOT USE STL. int main() { set set1; set set2; set set3; set1.insert(90); set1.insert(89); set1.insert(49); set1.insert(24); set1.insert(70); set1.insert(99); set1.insert(63); set1.insert(55); set1.insert(75);

Please help me with this assignment using Linux Ubuntu. The instructions are posted below. P.S. I need help with splitting terminal into two vertical panes. I pressed ctrl+b first then pressed shift+5, didn't work. I'm using my college's VMware Horizon to launch Ubuntu. It would be helpful if clear screenshots are provided. Thank you 1. Login to
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Chapter 1: Problem 4 Previous Problem Problem List Next Problem (1 point) Decrypt the message UXWEXW which was encrypted using the attire cipher. Alphabet A 0,B1,..., 2 - 25 f(p) = (15p +23) mod 26 Message LEPMEP Preview My Answers Submit Answers You have attempted this problem 3 times Your overall recorded score is 0% You have unlimited attempts
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Write a program to prompt the user to enter a positive number. It should then indicate whether it is a prime number or not. A prime number is a whole number greater than 1 whose only factors are 1 and itself. A factor is a whole numbers that can be divided evenly into another number . The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23

Use the given partial coding to to given question. Also Show the result. Thanks. Partial coding #include #include using namespace std; int main() { // Open the file. // Display the table headings. // Display the table data. // Use to for loops. Outer for loop to years (initial 1900 to 2020) // Get a value from the file. // Display the year. //
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(WILL LIKE YOUR SOLUTION) Answer the following in Java: Write a simple a fight simulator. Information about the simulation will take the form of text descriptions of the attacks and defenses (more on this later). Your program will have two opponents: an attacker (that only launches attacks) and a defender (that can only defend against the
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* All transactions performed by user is permanently stored into DB Directly By using commit Storing their work into local HD Storing their DB into servers with admin permission None
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