S
  1. study help
  2. subject categories
  3. computer science
  4. databases
  5. october 2020
  6. 14

Databases Questions and Answers October 14, 2020

Expert-verified solutions to help you succeed

1. Give an example of a one-line script that does display something on the screen when the script is executed, but displays something different on the screen when that line is entered into the interactive shell. (using Python) 2. Give an example of a one-line script that displays something on the screen when the script is executed, but that

Explain the core, CPU and the processor in a multicore computer structure.

I have a java programming assignment where part of it includes having to create perform a binary search for an area of values. I know how to code a binary search for a specific element in an array but I don't know how to search for a range of elements. Image included shows explanation of what we are supposed to do. Note: In this handout, we use
image text in transcribed

Let n be a positive integer and L = { xxr | x in { 0 , 1 } n } . What is the minimum number of states in any DFA that recognizes L ? Give reasons to your answer.

ourse_assessment_id=_102405_1&course id = 167840_1&content_id=-11147791&step- 1 What will be in CL when following program is executed model small. data. table1 DB 1,1,1,1,0,1111 code segment startup MOV BX, offset table 1 MOV CLO R: MOV AL. (BX CMP ALO JE EXIT ADD CL, AL INC BX JMPR EXIT: MOV AH, 4CH INT 21h exit END ALT-FN-F100) ALT+F10 TH
image text in transcribed

Will rate thanks 8. [10 pts] Develop a dat a structure that stores numbers and supports insertion, deletion, and the query, "Which numbers in the structure are elements of the interval [a, b]?" In each query, a and b are numbers, or o or oo, and a
image text in transcribed

Question 1 The ability given to an individual to make the status of his / her profile as private or public on a social media platform falls under which privacy design strategy as part pf PbD . Hide Demonstrate Control None of theabove
image text in transcribed

IN JAVA Write a method that accepts a String and the number of times that String should be printed and prints that String the given number of times. Example: printString("RST4", 3); Output: RSTYRSTARST4
image text in transcribed

ANSWER IN JAVA Source code = public class q1 { public static void main(String[] args) { int[] a = { 3, 9, 7, 9, 0, 5, 6 }; int n = a.length; int maxSum = 0; int start = 0; int end = 0; for (int i = 1; i maxSum) { maxSum = sum; start = i; end = j; } } } System.out.println("start : " + start + " end : " + end + " maxSum : " + maxSum); } }

Write a program that takes your name, age and favorite sport as a command line argument and displays it on the screen as: Hello, my name is John abruzi; I am 22 years old, and I love playing Basketball

Design and implement a class called Card that represents a standard playing card. Each card has a suit and face value. For your design, create a UML Class diagram similar to Figure 5.5 on page 180 of the textbook. Create a separate driver program that deals five random cards, then two specific cards that you choose. It is not necessary to ensure

MyMEPS practice data This time we focus on Total Expenditures in 2014 along with a persons insurance coverage. We use INSCOV14 for the insurance variable a) Using the H171 data, extract these two variables into a new data set, take care of coding for missing data, and labeling the categorical data. Create the variable for expenditures to indicate

A ( n ) _ _ _ _ _ _ _ _ is a name that represents a value which cannot be changed during the program's execution.

all MXF files use the same codec

Which of the following is used to edit or copy a macro?

Show that Set Cover can be polynomial-time reduced to CNF-SAT (CNF-SAT is essentially 3SAT without the restriction of having at most 3 literals per clause)
image text in transcribed

Match the appropriate argument with its description. URL against which the request will be made basic authentication to authenticate with the device the headers of the request ignores or verifies the SSL certificate

Need help with linked list in dynamic class. Implement -= as a member function and - as a non member function (similar to += and +). Here are the two headers from bag.h: o void operator -=(const bag &subtrahend); o bag operator-(const bag & b1, const bag & b2); //header file #include // Provides size_t and NULL #include "node2.h" // Provides node

Implement Distance vector routing for the given network and find the routing table and compute the least cost distance vectors for various nodes. Mention clearly various steps involved in routing process
image text in transcribed

Which of the following is not an operation performed by a databasedeveloper? A. Modify an existing table B. Create tables C. Grants access permission to a database D. Queries the table data E. Create relationships and other structures

You will transform the program that was written to play a letter guessing game (Project 2) to an object-oriented program. General Requirements for project 3 Rewrite the program from project 2 using at least one class Game, which has three member functions. All member functions will be defined as follows: o The function prototype appears in the

Law is nothing else but the best reason of wise men applied for ages to the transactions and business of mankind.

Write a loop that reads positive integers from standard input and that terminates when it reads an integer that is not positive. After the loop terminates, it prints out the sumof all the even integers read. Declare any variables that are needed. *PLEASE WRITE IN C LANGUAGE*.

Now that we have practiced with the re - cursion tree method, the iteration method, and the Master method. The Master Theorem states that, suppose T ( n ) = a T ( n / b ) + O ( nd ) , we have:

Declare and implement base class Employee (15 pts) Declare and implement derived class FulltimeEmployee (15 pts) Declare and implement derived class ParttimeEmployee (15 pts) Define tester program. (10 pts) Submit the project correctly. (5 pts) Instructions Define a C++ program to manage the employee information. You will define a base class

Code Output with Multiple choice questions What is the output of the following code? 10 points 3 public class Test { 40 public A2 get() { 5 return new A2(); 6 } 7 public static void main(String[] args) { 8- 11[] arr = new 11[] { (new Test()).get(), (new A2() { public void m2(int x) { 10 super.m2(x - 1); 11 } 12 }) }; 13 for (11 x : arr) { 14
image text in transcribed

Assignment 4: LinkedIn Recursion This assignment will be building on to the prior assignment and will utilize the same Eclipse project. Please refer to assignment 3 if you need assistance downloading the project template and understanding the existing architecture that you will contribute to. You will be adding four new menu actions to your

/NOTE: not all of the pseudocode is here // main module Function sain() 77 Local variables Declare numbers [] // declare array & initialize Declare high =0 Declare loro Declare average=0 Declare total=0 // Get numbers For index = 0 to 5 // 5 for testing purposes Display "Enter number: Input numbers [index] End For // Get statistics For index = 0
image text in transcribedimage text in transcribedimage text in transcribed

Write a multiple thread C program to compute the sum of the cubes of the N first integer numbers. Each thread should compute a partial sum to divide the work among them evenly. The program should work with different N and different number of threads P. Test your program for large N, P=1, P=2, P=4 and print the execution time for each run case and

Write a function called first_day_greater that takes two lists, L1 and L2, representing the daily measured weights of rat 1 and rat 2, respectively, and returns the index of the first day for which the weight for the first rat is greater than the weight of the second rat. If there are no such days then the function should return -1. You may NOT

Full key functional dependency exists in the table STUDENT. STUDENT StudentID SSN Name Class D 1 1 1 1 1 1 - 1 1 - 1 1 1 1 Connor Freshman D 2 2 2 2 2 2 - 2 2 - 2 2 2 2 Trevor Freshman D 3 3 3 3 3 3 - 3 3 - 3 3 3 3 Connor Sophomore D 4 4 4 4 4 4 - 4 4 - 4 4 4 4 Parker Sophomore D 5 5 5 5 5 5 - 5 5 - 5 5 5 5 Connor Sophomore Group of answer choices

True or false: Viral marketing lends itself especially well to social networking.

An inheritance relationship is created using 3 classes D , E and F . Each class has a few number of instance variables as can be seen below. What is printed by the following code snippet?

Please solve the 2nd part... * Purpose of this lab is to practice dynamic memory allocation through pointers 1. Write a complete C program that dynamically allocate an array of numbers as input and finds the maximum number and a minimum number using pointers. Test case Input Enter the number of elements in array: 5 Enter array elements: 10, 50,
image text in transcribed

Herz loves to drink cider. During the weekend, Herz goes to the pub and runs the following recursive algorithm, which takes as input an integer n greaterthanorequalto 0: Algorithm GoESTOTHEPUB(n): if n = 0 then order Fibonachos else if n is even then GoESTOTHEPUB(n/2); drink n^2/2 pints of cider; GoESToTHEPUB (n/2) else for i = 1 to 4 do
image text in transcribed

Based on the following table, please complete the start day and finish day of for task C, D, E, G, I and the total duration of Finish. Each answer is 2 points. TIME(DAYS) PREDECESSORS 10 TASK A B 9 , 8 D 7 J, F CI E 6 F 5 4 CI, D G H 3 2 C, F,J B J 1 Answer: Answer: Answer: Answer: 8 7 E G Answer: Answer: Answer: Answer: 6 4 Finish Answer: Answer:
image text in transcribed

To determine the network ID of an IP address, computers use a logical AND operation between the IP address and the subnet mask. Group of answer choices False True

8. Create a conference registration form. Your form should include the following a. Option buttons to determine registrant type: student, professor, or retired. (Each should have different registration fees.) b. Check boxes listing sessions to attend: A through F. c. Check boxes listing events and tours offered. (Each should have a different
image text in transcribed

In this problem, you are asked to write a program makeSVG.cpp that creates a scalable vector graphics (svg) file with shapes based on input read from standard input. An svg file can be visualized using a browser such as Firefox, Safari, Chrome or Internet Explorer. See https://en.wikipedia.org/wiki/Scalable_Vector_Graphics. Your svg file should

Write the statement p (q r) using only the connectives and

Explain the mobility of node inside same subnet and different subnets in mobile networks?

Please help me with these 3 matlab questions! 1. Write a MATLAB function with the header function [M1, M2] = mySplitMatrix(M) where M is a matrix, M1 is the left half of M, and M2 is the right half of M. In the case where there is an odd number of columns, the middle column should go to M1. Hint: the size and mod functions should be helpful. 2. 3.
image text in transcribedimage text in transcribed

(a) Where in a max-heap the smallest element might reside, assuming all elements are distinct? (b) Is an array that is in a sorted order a min-heap? (c) Is the sequence 23,17,14,6,13,10,1,5,7,12 a max-heap? (d) What is the running time of (deterministic) quicksort when all elements of the input sequence have the same value? (e) Why do we analyze
image text in transcribed

This is in java and need a comment. Please use the code to modify. Included are the ArrayBag.java and BagInterface.java files. These do not need modification. Also included is a modified ArrayBagDemo.java file. For this assignment you are to modify the ArrayBagDemo.java file to recursively printout the contents of the string array in reverse

3 3 . 3 % complete Question A multinational corporation handles both human - readable and non - human - readable data. Which of the following statements accurately represent the recommended security measures for each type of data?

What is active reconnaissance?

Consider the following graph. Find a minimum spanning tree of the graph using Kruskal's algorithm. List the edges in the order theyare put into the tree. Apply Prim's algorithm to the same graph starting with node A. List the edges, in order added to the MST. Suppose the cost of every edge touching male A is increased by a constant. Are we
image text in transcribed

what is coherence and consistency in os

ANSWER ONLY USING MAPLE ONLY USING MAPLE! DO NOT ANSWER IF IT IS NOT IN MAPLE CODE! THANKS!! Please choose one of the attached problems and solve using MAPLE AND MAPLE ONLY. Please also include the extra instructions at the bottom Use power series operations to find the Taylor series at x = 0 for the functions in Exercises 13-30 13. xe* 14. x2sin
image text in transcribed

Question 5 . Using the equation E e n e r g y = h c show how wavelength and energy change relative to each other. Eenergy becomes 1 = h Algorithm: no , mike h = 1 Make things that don't change invisible ( generally this means setting = 1 ) c = 1 l Secoetecost Make a truth table ( this is just a table of values of you get for different E ) Put in
image text in transcribed

Draw your own figures for a five node network (node A, node B, node C, node D, node E) using: a. Bus topology b. Ring topology c. Star topology d. FULL Mesh topology. Using the figures specify the most reliable, best delay performance, most fragile, and most costly topologies.

Task 1: Use the expression trees to build a calculator. The user should enter the expression in infix notation. The calculator should support the following: 1- Construct expression tree from infix expression. 2- Print expression using infix notation. 3- Print expression using postfix notation. 4- Print expression using prefix notation. 5- Evaluate
image text in transcribedimage text in transcribedimage text in transcribed

Using C programming to write a code for Mp lab x for an infinite light sequence that goes from back to fourth in a pair of lights with oscillator frequency of 0.25 Mhz and _delay() function of 0.25 seconds Equipment Supplied in Lab 1. Desktop PC with MPLAB X Software installed 2. Pickit 3 Programmer per group of 2 Students; since you do not have
image text in transcribedimage text in transcribed

(C++) 1) Pseudocode for BogoSort 2) Prove correctness using induction.

B. Suppose you want a circuit that will implement a "majority vote" concept for three input wires. One of your friends suggests the formula (A AND B) OR (B AND C) OR (A AND C). Another friend insists that it should be (A AND (B OR C)) OR (C AND (A AND B)) instead. To figure out which friend is correct, develop a truth table for each formula. Show
image text in transcribed

are graphic representations for programs, files, folders and more. Pixels Icons Drivers Sectors
image text in transcribed

If you run the piece of code. You will get an error. Why? Answer a . Matlab does not allow you to square all the elements in the matrix in a single operation. b . You are attempting to multiply a non - square matrix by itself, causing a dimension mismatch c . You must use the ? * * * * * operator instead of the ? ? operator. d . You cannot square
image text in transcribed

1) Draw the nonabbreviated logic diagram for the following Boolean expressions. You may use XOR gates a) ab + ab b) (abc + a)b c) ((ab)(bc) + abc) 2) Construct the truth tables for the Boolean expressions above

Can you please look at my python code and tell me the problem? (and the solution) every thing seems fine but it does not run. The whole question is this but my code is for number 1 : Create a python program that imitates a schoolbag containing two binders. The program should contain three classes: Binder, SchoolBag and BagTester (which consists of

a binary response is the most extreme form of a discrete random variable that takes on

uestion 9 (10 points) What is the purpose of NAV in CSMA/CA? Save Question 10 (10 points) What are two ways to relieve congestion discussed in Chapter 18? Save
image text in transcribed

In a network database, each child node may have more than one parent node; this is known as a:

Given a non - empty queue initially containing the elements 1 , 3 , 6 with 1 at the front and 6 at the rear. Perform the following sequence of operations: dequeue ( ) dequeue ( ) enqueue ( 5 ) enqueue ( 2 ) dequeue ( ) What elements are left in the queue from front to rear after completing the above operations? 1 , 5 2 , 5 5 , 6 5 , 2
image text in transcribed

Consider the following scenario and draw a use case diagram to show all the required system functionalities. Two programmers collaborate on a single workstation using the agile software development technique known as pair programming. As one enters the code, the other checks each line as it is entered. The driver is the one who is typing. The

Show that each of the following grammars is ambiguous. (To show that a grammar is ambiguous, you must demonstrate that it can generate two parse trees for the same string.) a. The grammar G4, repeated here: G4: ::= % | + | ( ) | x | y b. This grammar: ::= | ::= apple | banana | ::= chips | candy |

A. Write a C script that will compute the factorial of a given number (positive integer) B. Write a C script to find the new integer value of an original integer when it is bit-shifted left by 3 bits and added to its complement (one's complement of the original integer). (Note: You can manually type in the binary representation of the original
image text in transcribed

2 files: https://docs.google.com/document/d/1_HBWqEBHibFz3GiUNI8S70RG0o_qdDM0delMJB7g-_M/edit?usp=sharing
image text in transcribedimage text in transcribed

Specification Translate the C code below to MIPS assembly. The variable value is stored in register $4, value1 is stored in register $5, and out is stored in $6. You may use registers $7-$25 as temporary registers and you may use $0 for the value 0. Do your best to follow the MIPS style guidelines. The MIPS Green sheet for your reference
image text in transcribed

you will write an article review. This is done by reading an online article related to any area in computer technology, You must include the title and the URL link of the article.

In Linux when we type the date command , this is what we will get: $date Thu Jan 23 08:24:02 PST 2020 write a script that when you run it outputs the current month.

For Java Create a public class LastOdd that implements the following interface: public Interface ILastOdd { // return true if the last number added was odd, and false otherwise, including if add has not been called. boolean lastOdd(); // Add a new number. void add(int value);

Have your canvas extend JPanel and implement the java.awt.event.KeyListener interface. When a key is typed, your program should draw the corresponding character (KeyEvent. getKeyChar()) on the canvas at the location of the event. Note that a real text entry GUI automatically moves the insert position as you typefeel free to do that if you want the

A cash - disbursements process is an example of: an open - adaptive process an open - source application a CRM application an eCommerce based application a closed - mechanistic process

how to design the following alu in multisim, or any aother simulator The / and 4 on a line indicate that it's actually four lines
image text in transcribed

This is very confusing can someone help me with this, it will be greatly appreciated. 1. (12.5 points) Given the simple English CFG G, construct a chart parse for the garden path sentence: complicit administrator resigns to improve 3 S NP VP NP - N Adj NP | VP ? VI VP Inf Inf To V Adj - complicit ? administrator V - improve | resign:s To?to Garden
image text in transcribedimage text in transcribed

In the following algorithm, how many times is the print statement executed? for i = 1 to 12 do for j = 5 to 20 do for k = 1 to 17 do if (i > 4) and (k < 10) then print i, j, k 2. A committee of 10 senators must be formed with 5 senators from one party and 5 senators from the other party. In how many ways can this be done if there are a total of 60

All of the following are types of information systems general controls except:A ) computer operations controls.B ) hardware controls.C ) application controls.D ) software controls.E ) administrative controls.

Draw a sequence digram based on this use case digram
image text in transcribed

An external interface is used when you connect your system to an external system. For example, when you connect a smartphone ( your system ) to a laptop ( external system ) to back up your pictures, you would use an app on your laptop ( such as Photos or Google Photos ) to download the pictures. This app would be an example of an external

Should be written in C++ and/or Java. system call must take through the kernel. This approach is the antithesis of the layered approach, in which the path through the kernel is extended to make building the operating system easier. Discuss the pros and cons of the Synthesis approach to kernel design and system-performance optimization Programming
image text in transcribed

Complete the following code segment to make it a working program. The program reads the lengths of the two legs of a right triangle from the keyboard and displays the area of the triangle.

Which of the following are true about value iteration? We assume the MDP has a finite number of actions and states, and that the discount factor satisfies 0 < \ gamma < 1 .

Java primitives has helper classes like Double and Integer to convert between one another Question 1 6 options: True False

A group of formatting commands such as font, font size, font color, and paragraph alignment are collectively called a ( n ) ?

Which register is known as a loop counter?
image text in transcribed

LANGUAGE: JAVA Create a program contains 4 test classes which are following: -TestOverride -TestAssign -TestMethod -TestInstanceOf The task is to encode these classes and run them for inspection/analysis/scrutiny.

Which one of the following is not one of the six strategic bussiness objectives of information systems

PYTHON 3. Person and Customer Classes Write a class named person with data attributes for a person's name, address, and tele- phone number. Next, write a class named customer that is a subclass of the Person class. The customer class should have a data attribute for a customer number and a Boolean data attribute indicating whether the customer
image text in transcribed

1. IT is ready for a vacation on the planet earth and decides to visit the Yellowstone National Park in Wyoming. As IT strolls through Yellowstone park, IT's temperature measurement device drops to the ground. When IT notices the loss, it is too late to trace back the route. However, the measurement device has a transmitter and is sending out data
image text in transcribed

ASAP Please do this in JAVA!
image text in transcribed

assign 7 to a variable named seven

OCaml Write the function formatSubstitution : subst -> string which returns a string representation of substitution subst. For example, with 0, 1, 2 defined as above, the call (formatSubstitution sigma0) should return the string "{}" , (formatSubstitution sigma1) should return the string "{(v0 -> (C -> C))/v1, (C -> v1)/v0}"and finally, the

The following problem is known as the Dutch Flag Problem. In this problem, the task is to rearrange an array of characters R, W, and B (for red, white, and blue, which are the colors of the Dutch national flag) so that all the Rs come first, all the Ws come next, and all the Bs come last. Design a linear, in-place algorithm that solves this

A(n) __static__ is used in C++ to guarantee the initialization of a class instance. A constructor has the ___________ name as the class itself. Member functions are sometimes called _______________ in other object- oriented languages. A(n) _____________ is a member function that is automatically called to destroy an object. To access a particular

An _ _ _ _ _ shows the objects and how they interact to perform business functions and transactions. Question 5 6 options: object relationship diagram object precedent chart object antecedent chart object interaction diagram

The string consists of one or more sub strings separated by comma. S paces or tabs at the beginning or end or around commas are ignored , those spaces or tabs should stay . For each of the substring, if it is a hexadecimal string, i.e. it has only the characters from '0' to '9' and from 'a' to 'f' and from 'A' to 'F' , and it is of no more than 8

4 ) Which of the following statement ( s ) about the initialization of neural network weights is / are true? Two different initializations of the same network could converge to different minima. For a given initialization, gradient descent will converge to the same minima irrespective of the learning rate. The weights should be initialized to a

A speaker is an example of an input device primary storage an output device secondary storage a processor
image text in transcribed

1. * Use Newton-Raphson method to find a root of (a) f(x) = xe-2, Xo = 2, (6) f(x) = x3 2 3, Xo = 0, (c) f(x) = tan-'(x), X0 = 1.45
image text in transcribed

Consider the table below: \ table [ [ Clinician , ] , [ Clinician , Name,Specialty ] , [ 1 , Smith,Cardiology, ICU ] , [ 2 , Jones,ER , Diagnostic Radiology ] , [ 3 , Doe,Internist, Primary Care ] ] This is violation of: First normal form Second normal form Third normal form
image text in transcribed

Showing 100 - 200 of 1503
  • 2 / 16