S
  1. study help
  2. subject categories
  3. computer science
  4. databases
  5. july 2018
  6. 26

Databases Questions and Answers July 26, 2018

Expert-verified solutions to help you succeed

Identify an example of an online data source thats used by researchers to advance their profession. Consider interstellar databases, medical data sources, and so on. Explain what kinds of data are included in the online source, the researchers who access it, and scientific advances that may have stemmed from such a resource. Be sure to cite your

which of the given recurrence relations will be solved into an exponential algorithm. Here are the options: ( T ( n ) = 2 T ( n / 2 ) + O ( 1 ) ) ( T ( n ) = T ( n - 1 ) + T ( n - 2 ) + O ( 1 ) ) ( T ( n ) = 4 T ( n / 2 ) + n ) ( T ( n ) = 1 2 n ^ 3 + 5 n + 1 2 )

What is this storage area called for temporarily holding data while the central processing unit ( CPU ) works on the data? Storage Type System Memory ( RAM ) Processor Model Number Processor Speed ( Base )
image text in transcribed

Determine the required number of terms to cos x to 8 significanf figures using Maclaurin series approximation. Calculate the approximation using a value of x = 0.3. Show manual calculation first.

What formula should be used to create a calculated field that holds the item number?

Consider the following relations containing airline flight information: Flights (flno: integer, from: string, to: string, distance: integer, departs: time, arrives: time) Aircraft (aid: integer, aname: string, cruisingrange: integer) Certifed (eid: integer, aid: integer) Employees (eid: integer, ename: string, salary: integer) Note that the

which of the following scenarios is best suited for a stack?

Obtain an expression for the Boolean function F(A,B,C,D)=(1,2,4,7,9,10,12,15) only in terms of the exclusive-OR and complement operations. A. F(A,B,C,D)=B(CD) B. F(A,B,C,D)=BCD C. F(A,B,C,D)=BCD D. F(A,B,C,D)=BCD E. F(A,B,C,D)=BCD

how transform actual world to digital world?

Write the Assembly code for PIC 1 6 F 8 7 7 A to make the LEDs connected to PORTD flash 1 0 0 , 0 0 0 Times then turn off, when the user presses on the push - button that is connected to PORTE . 0 ( Active Low ) ? Note: you should use a COMPLEMENT ( COMF ) instruction set to flash for LEDs.

Q 8 9 . With the Calendar displayed, on the View tab ( Windows ) or the Organize tab ( Mac ) , what happens to your calendar when you adjust the Time Scale? You change the time zone that your calendar uses. You automatically switch to list view. You set time constraints for booking events. You change the number of hours visible on the grid.

convert IEEE single-precision(32-bit) 0xC0FC0000 to decimal floating-point

Let E denote the even length palindromes over the alphabet {a, b}. Find a grammar for the language E*

No use of compilers or electronic aids. Write the conditional expression to use in an IF or WHILE to test the following conditions. Use single and double quotes as needed for char and String. example-first char of String s not's' answer s.charAt(O)!- 's example- integers a and b sum to 3 answer a+b 3 To help the autograder: . Put exactly one space
image text in transcribed

In the opening case, the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ data breach was the result of malware on the company s point - of - sale system

US History How did abolitionists justify their ideas about ending slavery? How did southern whites justify the continued existence of slavery?

You are given the following: pfSense pfSense LAN IP: 1 9 2 . 1 6 8 . 3 0 . 5 8 / 2 4 pfSense OPT 1 IP: 1 7 2 . 1 6 . 1 0 0 . 1 / 2 4 pfSense OPT 2 IP: 1 7 2 . 1 6 . 2 0 0 . 1 / 2 4 MS 2 ( Your Choice of which IP to use within the given Network ID and subnet mask ) MS 2 LAN IP: 1 9 2 . 1 6 8 . 3 0 . 0 / 2 4 ( enp 0 s 3 ) ( active connection ) MS 2
image text in transcribed

Please ehlp with the error above? I get that with the every program... Using name space std; int main () {cout
image text in transcribed

Add Minimax with AlphaBeta pruning to the Tic-Tac-Toe game code for grid 3x3. The minimax algorithm should work with any of the available grid sizes, both for Xs and Os. Here is the code: import random def show_board(game_board): print(" ") print(game_board[0] + "|" + game_board[1] + "|" + game_board[2] + " ") print(game_board[3] + "|" +

Problem 1. Solve the following recurrences 1. T(n) = 4T(n/2) + n 2. T(n) = T(n/3) +T(2n/3) + n log3 4
image text in transcribed

Question - Do you know of the difference between a purely technical perspective on technology use and design, and a sociotechnical one?

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

using java Activity 1: Lab 1 Nostalgia Part Write a program that displays "Welcome to Java" five times using a for loop. Part 2: Now that you've done this, try allowing the user to enter how many times this message will be displayed, instead of it being a fixed amount. While going through these activities, pay attention to the To stop a for loop,
image text in transcribed

Do it in Python and filll the code pls thanks Write a function that takes as arguments 2 strings and a number. The function should be adding the numbers digit by digit. You can make the function able to add numbers from any base, but it should work for binary, decimal, octal and hexidecimal. Fill the code below
image text in transcribed

QUESTION 2 Assume cis a List of integers, what will the following code output? c.add(9); C.add(9); c.add(9); c.add(9); System.out.println(c.size())
image text in transcribed

Your primary responsibility as a systems analyst concerns: Group of answer choices people. hardware. application software development. controls. documentation and training materials.

? ? ? ? ? ? ? i s t h e c a p a c i t y o f t h e c o m m u n i c a t i o n c h a n n e l t h a t i s a l s o k n o w n a s t h r o u g h p u t o r l i n e s p e e d . Group o f answer choices D S L Duplex QoS Bandwidth

Design, implement and evaluate a computing-based solution to meet a given set of computing requirements in the context of the program's discipline. Total Mark: 15 This assignment considers the following hypothetical scenario. A real estate agency would like to use artificial intelligence to better predict whether a certain customer will buy a
image text in transcribedimage text in transcribed

( 9 Points ) List three data gathering protocols for usability testing. ( 9 Points ) What is the difference between extreme unit testing with regular unit testing? ( 1 0 Points ) Suppose that you are performing usability testing and you would like to decide on the number of testers. If each user can find 1 0 percent of the errors, calculate the
image text in transcribed

Help with C++ Source Code: Submit the source code (main.cpp , functions.h , and functions.cpp files) Three Separate Files Program You will write a program that uses a recursive function to determine whether a term is a character-unit palindrome. Moreover, flags can be used to indicate whether to do case sensitive comparisons or to stop ignoring

Project: allows employees to keep track of their retirement savings and have the access to company stock to buy and sell 1. What is the project about? 2. What are your responsibilities? 3. What are the technologies ? 4. Team Size 5. What do you do everyday?

the language is python this is my count.py python code import sys import string #this function will add frequency counts to dictionary d #d: dictionary , map characters to frequency #files: source of input #remove_case: boolean def add_frequencies(d,file,remove_case): textfile=file.read() #a list including all letters[a..z..A..Z]
image text in transcribed

What is the memory capacity of Core i 7 , assuming memory is byte addressable?

MATLAB PROGRAMMING Ch7--#Variation on #25 In cryptography, the intended message sometimes consists of upper-case the end letter of 3, every word in a string. Write a function crypttest that will receive a string with the encrypted message and return the message. >>strl-Today are great' >>m=crypttest (str1) m= YET
image text in transcribed

JU
image text in transcribedimage text in transcribed

Use the fast exponentiation algorithm of Figure 9 . 8 to determine 5 5 9 6 mod 1 2 3 4 . Show the steps involved in the computation.

How to write a method that finds the length of the shortest path between two positions in the matrix in java Recursion?

What is the error in writeFile ( ) ? outFS has not been closedfoStream has not been flushedwriteFile ( ) should throw PrintException The output stream has not been properly opened
image text in transcribed

Lists are like arrays, but a list can contain elements with different data types. True or False?

8. Using Windows Powershell write a command that redirect (add) all processes containing the word host to process.txt file above.

Part 0 : Set Up the Topology and InitAddressing Table Objectives Part 1 : Configure and Apply a Named Standard ACL Part 2 : Configure and Apply a Numbered Standard ACL Scenario This activity focuses on defining filtering criteria, configuring standard ACLs, applying ACLs to router interfaces, and verifying and testing the ACL implementation.
image text in transcribed

by using visual basic Command 1 [+]: add two variables, first number from text1, second number from text2 then the result display in text3 2. Command 2 [-]: subtract two variables, first number from text1, second number from text2 then the result display in text3 3. Command 3 [*]: multiply two variables, first number from text1, second number from
image text in transcribed

Use the following Python code to answer the given prompts. **Important note: formatting and casing in Canvas fill-in the blank questions matter. Please read any formatting notes and use them in your answers accordingly. Failure to follow formatting rules can yield in answers being marked incorrect. a) How many tests will run in Pytest? (a single
image text in transcribed

Most languages that have block comments do not allow nested comments. For example, in C++, the block comment is in the style of * ... */ and the following nested comment is invalid: /*.../* ... */ ... */ What is the advantages/disadvantages of allowing nested block comments, and what is the advantages/disadvantages of disallowing it
image text in transcribed

heightsLM < - lm ( sheight ~ fheight, data = father.son )

Match each TCP / IP layers with its function. Drag Drop Breaks the data into pieces. Prepares the data to be sent. Adds physical addresses. Adds logical addresses.

Please explain in detail. Thank you 1) Write a truth table for the proposition
image text in transcribed

??? Question 4 (1 point) 60 k92 120 V = v 60 k92 Figure 7-7. What voltage will the meter indicate in Figure 7-7? 60 V 120 V 30 V 45
image text in transcribed

Strings batch 1 , batch 2 , and batch 3 are read from input. Each string consists of three foods, separated by " / " and surrounded by " " and 7 " . Assign allSeconds with the second food from each string, separated by " / " . Ex: If the input is: [ oatmeal / cream / radish ] [ grape / carrot / peas ] [ beans / cheese / pear ] Java

What is the maximum hop count allowed in a RIP ? network 2 0 . a 1 0 . b 1 5 . c 2 5 . d
image text in transcribed

Which command - line utility shows TCP / IP connections and statistics? ipconfig netsh netstat ifconfig

4. Given the following traversal on the binary tree Inorder traversal gives: 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 19, 20 Preorder traversal gives: 7, 4, 2, 3, 6, 5, 12, 9, 8, 11, 19, 15, 20. 5. Construct a binary tree from a given preorder and inorder sequence: Inorder: nl n2 n3 n4 n5 n6 n7 n8 n9 Preorder: n6 n2 nl n4 n3 n5 n9 n7 n8 6. For the

Please fix the errors. or tell me how to. The code is not running. The language is C++. Coded in visual studio. Urgently needed. Thank you. IVIIscella MKEOUSL #include #include #include using namespace std; // FOR STORING CONTACT INFO struct Node { int key=0; string name; string primary_contact; string secondary_contact; string address; Node*
image text in transcribedimage text in transcribedimage text in transcribed

The aim of chosen-ciphertext security is to detect modification of ciphertexts. HMAC alone can provide chosen-ciphertext security. In encrypt-then-mac, one pre-shared key for encryption is enough. The aim of chosen-ciphertext security is to prevent modification of ciphertexts. out of the 4 above is there any CORRECT statement?

Identify two nodes which are not adjacent to one another.

The programs have to be done with Python with NumPy, Pandas and Matplotlib Exercise 1: Converting a list of weights from kilograms to pounds First, convert the list of weights from a list to a Numpy array. Then, convert all of the weights from kilograms to pounds. Use the scalar conversion of 2.2 lbs per kilogram to make your conversion. Lastly,
image text in transcribedimage text in transcribedimage text in transcribed

Need to use: Windows Forms App (NET Framework) Visual C# Exercise 3-4 A hotel chain 0 offers special discounts for customers 20% discount on reservations for 2 to who have a gold or platinum status: 4 days and 30% discount for stays of 5 or more days : 30% discount on reservations for 2 to 4 days and 40% discount for stays of 5 or more Platinum
image text in transcribedimage text in transcribed

Given IP address of 140.205.192.0 255.255.240.0, you need to create at least 28 subnets. With classful subnetting, what is the maximum number of hosts in each subnet? Please no coding just simple answer please.

SHOW ALL YOUR WORK. REMEMBER THAT PROGRAM SEGMENTS ARE TO BE WRITTEN IN JAVA. Assume that the classes listed in the Java Quick Reference have been imported where appropriate. Unless otherwise noted in the question, assume that parameters in method calls are not null and that methods are called only when their preconditions are satisfied. In
image text in transcribedimage text in transcribedimage text in transcribed

Write a code in Python is a associated with the telegram and convert images to PDF
image text in transcribed

How to write thie code in python ? Part II: Blackjack Dice (20 points) For this part you will implement a two-player version of the card game Blackjack but with six-sided dice instead of playing cards. The function blackjack dice() will simulate the game with no interaction from the user. The game rules are as follows: Players take turns rolling
image text in transcribedimage text in transcribedimage text in transcribed

Identify three basic things a small and medium-sized business could do to improve their risk posture and why it is important to have cybersecurity protections in place. Please Explain your rationale.

Solve it using c++ Morse code is a sequence of dashes and dots that can be used to represent a message in English. Each letter in a particular alphabet is represented by a unique pattern of dashes and dots in Morse code. You can find more details about the Morse code on Wikipedia. In this project, your job is to create a code that can convert an

why mid = start + ( end - start ) / 2 is better than mid = ( start + end ) / 2 in binary search iteration?

5. what are the four necessary conditions for deadlock to happen. 6. explain the dinning philosopher problem and how deadlock could happen. Draw the resource-allocation diagram to explain the deadlock case. 7. write the sophomore code for the bounded buffer problem. You must provide both the consumer code and producer code. Explain how many

Java centeval = a Af conitrouter ) + thesinde tenent) 1 1 inturity nolectif? inturde inrofil? piblie static vold maln(string() arger) ( intilode headobli // Create iofinale ivference wariobles Inthode nodeobji, Inthode nodrobi? Intilide nodeotin: intliode carrobis (f Frent of nodes list Neadoby = new intsode (1) ) 1/ resert ince nodes nodecoli 1 *
image text in transcribedimage text in transcribedimage text in transcribed

Explain the following in relation to computer and network security: 1 . Risk Management 2 . What is being protected? 3 . What are the threats? 4 . What are the weaknesses that hackers and intruders can use? 5 . Explain at least three ( 3 ) types of attacks and how they can impact organizational data / resources ?

Guide: Allow 3 0 minutes for this challenge. The procedure By following a special series of instructions ( the procedure ) it is possible to find ant value in a list of venues that are sorted in ascending order. This is a useful procedure. In the procedure you will see reference to 5 special keywords: Items, Nemo, Focus, Position and Count. In the

A color model in which the colors red, green, and blue are added together to form another color. A . Eye dropper B . WordArt C . RBG
image text in transcribed

1. Suppose you have a hard disk with 2200 tracks per surface, each track divided into 110 sec- tors, six platters and a blocksize of 512 bytes (G.e.. kilobyte), what is the total raw capacity of the disk drive? 2. A program may be written in a language that is compiled to native binary (to the instruc- tion opcodes the actual CPU knows how to
image text in transcribed

Which language is accepted by the following automata?
image text in transcribed

Explain how caching is used in the Domain Name System ( DNS ) dur - ing an iterative query. Specify what information is cached at the local host, the local DNS , the root DNS , the Top Level Domain ( TLD ) DNS and the authoritative DNS . Be sure to include only cached information not all information stored.

JAVA 18. Perfect Number Write a Java program that takes two integer numbers, which are X and Y. Then, your program should find and output whether these numbers and the addition of these numbers is a perfect number. A perfect number is a number whose sum of the divisors is two times bigger than the number. Example: 28 divisors (1,2,4,7,14,28)
image text in transcribed

27 Which software manages the creation of virtual machines? O Host Instruction set architecture O Guest Hypervisor
image text in transcribed

Using examples explain three main aspects of the information security by showing how they depend on each other.

Create a two - tape Turing machine for \ ( L = www \ ) where \ ( w \ in \ { a , b \ } ^ * \ ) . * * Initial Conditions ( for both types of machines ) : * * The input string is already on the first tape while the second tape is empty; and the head of the first tape is on the first symbol of the input string. * * Final Condition: * * The position of
image text in transcribed

In a switch statement, every case must have a break true or false

A Global Catalog is a domain controller ( DC ) that functions as the primary route of Active Directory ( AD ) replication data moving into and out of sites. true or false?

Explain why four students coming in late would not necessarily form a random sample. ( Select all that apply. ) Perhaps they are lazy students that don't want to attend class. There is nothing wrong with choosing four students coming in late. Perhaps they are busy students who are never on time to class. Perhaps they are students that had a prior

Vliestion (1) while make testman I will generate an executable called Testman IX to test your program for Question (2). If you just issue make, then both will be generated. (1) In this question, you will re-implement the question in Assignment 1 by using vectors instead dynamic arrays. All the functionalities are the same. Of course, you need to
image text in transcribed

please help me answer 100% correctly . hand writing must be clear and easy to read, if can type your answer in computer . tq please give long answer because mark is 30. please explain clearly. 1. Information System (IS) is a combination of hardware, people, software, data resources, communications, policies, procedures and networks. Discuss how IS
image text in transcribed

Worst-fit is an allocation algorithm that allocates the largest free block to a new job. It is the opposite of the best-fit algorithm. Using the following config- uration with jobs arriving in order (Job A, B, C, and D) and with blocks shown in order from low-order memory to high-order memory: Job List: Job Number Job A Job B Job C Job D Memory

For this assignment we will begin working on the "Library Inventory System." It is a piece of software that keeps tracks of books in a library's inventory. Including the ability to check-in/check-out books as well as add and remove books from the system. We will be building on this system throughout the semester. Your software needs to do the

Describe steps in cybersecurity risk analysis. More than one answer may be correct

What is the range of values for the Total Discounted Cash Flow ( in dollars ) for these scenarios?

For s in [ abc , de , f ] : For ch in s: print ( ch * 2 , end = ) print ( )

Which of the following internet services provides equal upload and download bandwidth? answer VDSL ADSL VHDSL SDSL

JAVA Given the Company and FullTimeEmployee classes and the Employee interface, write a Java program that reads in a file of full time employees with each line of input containing the name of the employee (String) and gross Salary (double) and stores them in an array list. Then using the arraylist of stored employees, find and print the best paid

1. (7 points) Let X and Y be two decision problems. Suppose we know that X reduces to Y in polynomial time. Which of the following statements are true? Explain a. If Y is NP-complete then so is X. b. If X is NP-complete then so is Y. C. If Y is NP-complete and is in NP then X is NP-complete. d. If X is NP-complete and Y is in NP then Y is
image text in transcribed

1. For the MIPS assembly instructions below, what is the corresponding C statement? Assume that the variables f, g, h, i, and j are assigned to registers $s0, $s1, $s2, $s3, and $s4, respectively. Assume that the base address of the arrays A and B are in registers $s6 and $s7, respectively. sll $t0, $s0, 2 # $t0 = f * 4 add $t0, $s6, $t0 # $t0 =

The largest product resulting from a mutlipication of a 2 8 bit multiplication and a 3 1 bit multiplier is _ _ _ bits long

1. Si Trees=['olmo','roble','lamo','ciruelo','pino'], cul es el valor de Trees[-3]? Selecciona una respuesta: * 'olmo' * 'roble' * 'lamo' * 'ciruelo' 2. Cmo obtendras las dimensiones individuales del array llamado testarray? Seleccione una respuesta: * testarray.shape * testarray.ndim * testarray.dtype * testarray.size 3. Qu devuelve

Repeat the Arena assignment from Unit 7, but instead of using the Process module from the Basic Process Tab, use exclusively Seize, Delay and Release from the Advanced Process Tab 22

Please solve all parts.
image text in transcribed

create a simple, yet unique graphic using SVG. The graphic should incorporate shape transformation methods and animation. Share both the code and screen capture of the graphic.

Which one of the following statements regarding the PoE ( Power over Ethernet ) standard is INCORRECT? a . The amount of power provided is 1 5 . 4 watts for standard PoE devices. b . PoE requires CAT 6 or better copper cable. c . Electric current may run over a pair of wires used for data transmission. d . A device that supplies power for PoE is

Problem b (PA3b.java) Write an astrology program. The user will give their birthday as a month number (1 - 12) and then a day number (1 - 31). Your program will then output the person's astrological sign on one line, and then a horoscope for the user on the next. You may make up whatever horoscope you want for each different sign. Here are the
image text in transcribed

Match each TCP / IP layers with its function. APPLICATION LINK TRANSPORT INTERNET Breaks the data into pieces. Prepares the data to be sent. Adds physical addresses. Adds logical addresses.

IN C + Write a program that reads an English text file, counts, and shows (on the screen) the number of single words in a file. it should not count the words " a ", " an " and " the ".

What is normalization and how does it resolve data integrity issues? How do you go about transforming a database through different forms of normalization and how do you determine the appropriate form of normalization?

Showing 800 - 900 of 1505
  • 9 / 16