S
  1. study help
  2. subject categories
  3. computer science
  4. databases
  5. february 2021
  6. 04

Databases Questions and Answers February 04, 2021

Expert-verified solutions to help you succeed

In a physical fitness class of 8 1 students, each student's percentage body fat is measured at the beginning & end of the semester. The instructors of the course want to see if student's body composition changed. What experiment design is being implemented here?

Question 6 (3 points) Saved Perform the Generalized Arc Consistency on the following constraint graph, and select the correct domains for each variable, once pruning is complete. XS Y Y [2,4] X [1, 2, 3, 4] Y = Z X > Z Z [2,5,8) Question 6 (3 points) Saved Perform the Generalized Arc Consistency on the following constraint graph, and select the
image text in transcribed

If a channel uses a signal that combines 2 varieties of amplitudes and 2 varieties of frequencies, and it has a bandwidth of 3 , 0 0 0 Hz . According to Nyquest's Theorom, what is its max data tranmission rate? 1 , 0 0 0 bps 3 , 0 0 0 bps 6 , 0 0 0 bps 1 2 , 0 0 0 bps

How many major types of indexes are there in sql server? ( 1 Point ) 3 1 2 More than 3

Q5) Write a program that ask the user to enter an alphabet and if the alphabet is vowel, then it prints "it is a vowel". If it is a consonant, then it prints it is a consonant using switch case. Example: If the user enter a vowel 'a', then print "it is a vowel". If the user enter a consonant 'e', then print "it is a consonant
image text in transcribed

We have learned that private keys should never be reused when encrypting messages using the one-time pad cipher/algorithm. In this problem, we establish this fact through an attack. In particular, we find how we can retrieve the encryption key k given two ciphertexts encrypted with that same key along with some auxiliary information about the
image text in transcribed

How do you choose personnel in the software development?

In a similar technology, which one is more power efficient for a given function? CPU or ASIC? Why?

a layer 2 full - duplex seitch with 1 0 0 mbps ports eill be abke tonsend data st 1 0 0 mbps from one fonnected computer to another but not receive data at 1 0 0 mbps simultaneously

Write dow a very simple example of the Multi-branch selection structure using C++ and explain it.

Question 4 1 pts Which definition best defines a Trojan Horse? Software installed for one purpose with a secret second feature. Software that doesn't work as promised. Software that drains system resources. Software with in-app purchases. D Question 5 1 pts Which of these would best define a Key Logger? O Worm Logic Bomb Spyware Trojan Horse
image text in transcribedimage text in transcribed

provide examples and diagrams of DISCRIMINATE ANALYSIS cluster analysis regression analysis Structural equation modeling Analysis

What are advantages and disadvantages of cloud based conputer system

4. Convert the following regular expressions to NFAs. (a) aabb)* Ub (9 pt) (b) at u(ab)+ (8 pt) (c) (au b)+a+b+ (8 pt) Note: The U operator above is the + operator for regular expressions that we defined in class. On the other hand, the + operator in the exponents in parts (a) and (b) is different; it is a closure operator. That is, at means one
image text in transcribed

which of them is correct, multiple correct possible. Following is the incomplete transition table of the NFA representing the shuffle of {w {a,b}" w does not contain the substrings ab} and {wlw is any string except a and b}. a - 00 01 {01,10) (11,03) (03,12) {10,11) 02 10 (00,02) {01,03) {02.03) (12,20} (21,13) (03) (20,22) (13,22) 03 (03,13) 20
image text in transcribed

The resouree shared that focused on what to know and how you can help guard agsinst school cyber attacks. action taken by federal and state pelicymakers to help was discussed. Per this blog, how many of the 1 7 0 cybersecurity bilis that were introduced became lane?
image text in transcribed

This problem will allow you to demonstrate your understanding of basic Object - Oriented Programming ( OOP ) in Python, by creating a simple Employee Management System.Define a class named Student with the following attributes: name, student _ id , and grade. The Student class should also have the following methods: _ _ init _ _ ( self , name,

Assume for simplicity that the reflectance of the area is constant and equal to 1 . 0 and let K = 2 5 5 . If the resulting image is digitized with k bits of intensity resolution, and the eye can detect an abrupt change of eight shades of intensities between adjacent pixels, what value of k will cause visible false contouring?

Which of the listed below exceptions belong to the category of checked exceptions: ( 2 Puan ) InputMismatchException IOException ArithmeticException NullPointerException
image text in transcribed

What are some laws surrounding biometric data?

Function - specific applications: Is intended to meet the needs of many different uses working on problems that take on many different functional requirements Would be a program such as PowerPoint Are specific to functional area of business like human resources or accounting Would be a program such as Word Excel
image text in transcribed

An entity in the entity relationship model corresponds to a table in the relational environment. An entity in the entity relationship model corresponds to a table in the relational environment. False True

Write down the Key characteristic of DBMS within the example

Solve 1 1. The value of the mathematical constant e can be expressed as the infinite series Write a complete C program that approximates e by computing the value of where n is an integer greater than 2 entered by the user. Want to know how well your program did? The value of e is defined as a constant in math.h - print if out with the statement
image text in transcribed

In Java, all exceptions must be caught or declared in the method signature. True False
image text in transcribed

Design an access matrix with domains and objects to illustrate the Principle of Least Priviledge for the following program: it has 4 sequential logical phases, with phase 1 reading files F1 and F2, phase 2 doing computation, phase 3 writing to file F3 and phase 4 writing to F4. (You will need switches.)

Write a C++ program that provides information dealing with the approximation of the sin() function using various terms from the Taylors series expansion. Use 4 decimal places for all the numbers printed. First provide the following main menu: sin() function approximation tool Select an option 1 - Calculate the maximum allowed angle for a given

Jump to level 1 Add a new row for Joe as the fourth row of the table, with a grade of: B- SHOW E i Course grades 3 4 Student 5 Grade 6 8 9 Bob 10 B+ 11 tr> 12 13 Jan 14 A 15 16 Sam 18 A- 17 19
image text in transcribed

Which of the following is not a guideline for representing requirements ? diagrams should be restricted in number and consistent in use use no more than 7 colors in any diagrams representation format and content should be relevant to the context representations should be visible

d) Write a program that pushes R0, R1, R2 and R4 into the stack. 4) Answer the following questions. a) The minimum number of machinecycles needed to execute an ARM instruction is? b) Find the machine cycle for a crystal frequency of 88MHz c) Assuming a crystal frequency of 200MHz, find the time delay associated with the loop section of the
image text in transcribed

A variable name in the programming language Visual Basic must begin with a letter ( uppercase or lowercase ) possibly followed by letters, digits ( 0 9 ) , and various special characters. How many different Visual Basic variable names of length up to four are possible that consist of letters and digits and end in a digit? variable names

For this assignment, I want you to recreate this grid layout. The tool you'll be using is grid layout from CSS. Useful information need are: Grid is width is set to 100% Header color is skyblue Navigation color is gray Content color is green Footer color is yellow Page background color is gold Hint: I left the left and right sides of the grid for

Consider the following two grammars G 1 : S - > SbS | a Pattern ababa G 2 : S - > aB | ab , A - > AB | a , B - > ABb | b Pattern ab Check for ambiguity in both the grammars, give all possible parse tree generation for the patterns.

Please answer + code on Matlab... The file is written below "hw6_data" %The first column is time in days and the second one is measured virus concentration data=[-10 131334 -9 130748 -8 130223 -7 132089 -6 134453 -5 133575 -4 132779 -3 132123 -2 131524 -1 130300 0 133230 1 133089 2 98668 3 73080 4 53579 5 39405 6 28333 7 19182 8 14888 9 12405 10
image text in transcribed

Using the documentation, design and write a program (in the Grafix_Thing's paint method, using the pen Graphics object) to draw a UFO similar to the following one. @SuppressWarnings ("serial") public class UFO extends javax.swing.JFrame { public void paint(Graphics g) { // draw the window title, menu, buttons super.paint(g); // get the Graphics
image text in transcribedimage text in transcribedimage text in transcribed

Formal master degree: pls answer 1-5. Thank you Solve the following 1. Suppose that codewords from the binary code {000, 100, 111} are being sent over a BSC (binary symmetric channel) with crossover probability p = 0.03. Use the maximum likelihood decoding rule to decode the following received words: (a) 010; (b) 011. 2. Consider a memoryless
image text in transcribed

Question 1 8 The simplified expression for the Boolean function defined by the following Kmap is , x ' y ' z + x ' y z + x y ' z ' , y ' z + x ' z + x ' y ' = > , x ' z + x ' y + x y ' z ' , x ' z + x ' y explain how x ' z + x ' y + xy ' z ' is the correct option
image text in transcribed

I hope to answer these questions with clean handwriting . thank you 1-Exercise 4.17 from the textbook Write a for loop to print the odd numbers from 1 to 99 (inclusive). 2-Exercise 4.16 from the textbook Write a code fragment that reads and prints integer values entered by a user until a particular sentinel value (stored in the constant SENTINEL)

PART 4: Given the following table and functional dependencies, construct tables below that will satisfy 2NF and identify the primary key of each new table. Note that the primary key of this table is StdSSN + OfferNo. StdSSN StdCity StdClass OfferNo OffTerm OffYear EnrGrade CourseNo CrsDesc S1 SEATTLE JUN 01 SPRING 2009 3.5 C1 DB S1 SEATTLE JUN 02

The second program is called SalesTax. It will ask the user for the sales tax and the total cost of the items. It will then print out the sales tax as an integer that represents the total sales tax in pennies. For example, if the sales tax is 5 % and the total cost of the items is $ 1 0 0 , then it should print 5 0 0 . It is up to you to choose
image text in transcribed

Problem 3. For the input data in Fig. 3 (PS DS), write COBOL program to find min, max and sum. Using the screenshots to show the source code and result. Vista TN3270 Session A File Edit Font Transfer Macro Options Windov 0 File Edit Edit_Settings Menu EDIT KCO2728.COMP.INDATAZ 000100 1808 000200 2008 000300 0033 000480 0123 000500 0788 000600 6500
image text in transcribed

( Java ) So I have a problem if the first IF it's not executed I want it to print the else statement Exercise 3: Apply a nested if statement. Using the Scanner object, write a simple java program to do the following 1. asks the user for their age 2. checks if the age is greater than or equal to 18 and weight >50 a. eligible to donate blood b.
image text in transcribedimage text in transcribed

Given a 4 8 - bit virtual address space and a 8 1 9 2 byte page size... How many bits are required for offset addressing ( i . e . addressing bytes within a page ) ? How many for the pages?

Compute: val = ( g + h ) 3 Ex: If the input is 4 . 0 2 . 0 , then the output is: val = 2 1 6 . 0 1 import java.util.Scanner; 3 public class MathFunctions f public static void main ( String [ ] args ) { Scanner scnr = new Scanner ( System , in ) ; double B ; double h ; double val; E = scnr . nextDouble ( ) ; h = scnr - nextiDouble ( ) ; Y / Your
image text in transcribed

Enterprise networks are composed of embedded LANs and a WAN. True False
image text in transcribed

1. Explain what the following JSON code will achieve. [GET] https:// /admin/ inventory_levels.json?inventory_item_ids=3366345 2. Explain what the following JSON code will achieve. [GET] https:// /admin/collects.json 3. Explain what the following JSON code will achieve. [GET] https:// /admin/smart_collections.json 4. What is Order Risk?

Q 9 Compare these results to the prior question model results that used the variables ZN , INDUS, CHAS, RM , DIS, PTRATIO, LSTAT an select the orrect statement. The new results indicate the variables AGE and RAD are statistically significant predictors of MEDV. LSTAT is the most important variable ( highest effect ) in both the prior model and the
image text in transcribed

In April 2 0 0 7 , the Estonian government experienced a series of _ _ _ _ _ _ , allegedly in response to the moving of a war memorial erected by the former Soviet Union. As a result, the Estonian government was forced to dramatically limit communication with the outside world. distributed denial of service ( DDoS ) attacks power outages malware

How link - state routing protocols operate.

NEED HELP ASAP!!! You are to design and implement a class or classes) to encapsulate student information. Each student is encapsulated in an object containing: 1. Student's name 2. Assessments with corresponding grades and course overall weight (for example, student X gets 80 points out of 100 points total on Exam1 which weights 10% of the course
image text in transcribed

Arguments could you give for or against the idea that body language is a science with principles that can be interpreted accurately by specialist

Broadcast domains are created by the following device. Repeaters Switches Routers Hubs

Which is an organization's least expensive data source to create and maintain? Data warehouse Data lake Database Data mart
image text in transcribed

Consider the following Java code fragment. What is the output? int [ ] arr = { 1 0 , 2 0 , 3 0 , 4 0 , 5 0 } ; System.out.println ( arr [ 5 ] ) ;

Consider the relationship "Prereq - Follow" in the E / R diagram below. If we view this relationship as a table / relaton , how many columns / attributes will it have? Write your answer as an integer, for example, 6 .

That is all the information I was given. It is the year 2055, the CruzX Rocket Inc. is in the process of designing its X-2 single use Space Transportation Systems (STS). You have been tasked with creating a class to model a single STS. Design a class named STS (Space Transportation System) that contains: 1. A private int data field named STSId for
image text in transcribed

Spanner is an example of a distributed database. Question 9 options: True False

Please do the following SQL question part 1,2,3,4,5. Thank you! sql script. e5.1 Exercises from chapter 5 III Before you begin: re-create the tables and data using the script zagimore_schema.sql -- 1 Display the RegionID, RegionName and number of stores in each region. select 1; -- 2 Display CategoryID and average price of products in that
image text in transcribed

In preparing for an IPv6 implementation at your company, you are responsible for providing basic IPv6 operations information to the desktop support team. One of the topics in your document is to describe the initial IPv6 communications process that a host invokes when its network interface becomes active and what information it retains locally as

In following expression, what does the number 8 specify? print ( format ( var 1 , 8 . 4 f ) )

The output from the following code is: #define max(a,b) ((a)>(b)? (a) : (b)) int n, i=5, j=7; n= max( i, j++); printf ("ed, d, d", n, i, j; A. 8, 5, 9 O B. 7.5.7 O C. 9.5, 9 O D. 7, 6,7 OE. 5, 6,3
image text in transcribed

What protocol is used to resolve the IP address to a physical address in a LAN ( Local Area Network ) ? HTTP FTP ARP TCP
image text in transcribed

Refer to the following table diagram: F The Course table has columns DepartmentCode, CourseNumber, CourseName U , CreditQuantity R , and CatalogCode R U . ( DepartmentCode , CourseNumber ) is the primary key. The table is implemented with the following statement: CREATE TABLE Course ( DepartmentCode CHAR ( 3 ) , CourseNumber INT, CourseName

Adobe's Acrobat, Photoshop, and PageMaker are examples of _ _ _ _ _ _ _ _ . Group of answer choices horizontal - market application software firmware operating systems vertical - market application software

Read the attached HL7 Standard for CDA Release 2: Consultation Notes Levels 1, 2, 3 DSTU and answer the following questions: What are the required Sections in the CDA body? ( 1 pt) What is the template ID and section type code of the Physical Examination Section? (2pt) Complete the Reason for Referral/Visit/Chief Complaint Section. Which LOINC

Q 1- Summarize what you have learned about distributed systems in 6 or more lines. Q2- Assume that your grandmother asks you about your course. How do you explain distributed systems for your grand mom? (Hint: You should correctly explain it in an easy language) Explain: What do you know about distributed transparency? Why do we need it? And why
image text in transcribed

Henderson 3 3 2 0 Question 1 : Please provide a short HTML code of a sample resume. Please do this using HTML table with two columns. Be sure to provide full code and explanation.

Which of the following best describes how Python programs generally execute? Group of answer choices A script is written in machine readable code directly and executed by the computer without the aid of an intermediary program A script is read by an interpreter program, which carrries out the instructions in the script A script is translated and

Problem 5.4: Following program demonstrates the use of perror() function. Write this program in Oracle VM VirtualBox, compile it and run it according to lab instructor instructions and study the output. Put the screenshot of code after writing in "vi editor" in solution section and screenshot of output in output section. #include #include /*
image text in transcribedimage text in transcribed

please show work Problem 2: How many times will "Hello" be printed? Express that number using summation, then give a closed for fomula for the sum (means simple arithmetic expression without summation notation) b) for (j = 0; j
image text in transcribedimage text in transcribed

Question 2 Output from the GPT - 3 codex model can directly be checked in into the version control system, integrated and deployed into production. True False
image text in transcribed

Buffer overflow attacks can be prevented and compile time through the use of address space randomization

After the 1 6 th transmission round, the segment loss detected by a triple duplicate ack? Yes No

Learning Objectives List sources of parallelization overhead Distinguish between task vs. data parallelism Apply Foster's methodology for parallel program design to produce a design that minimizes parallel overhead. Apply Amdalh's law to calculate the maximum speedup given a fraction of serial processing. Calculate parallel performance metrics:
image text in transcribedimage text in transcribedimage text in transcribed

Extra 2 points - Build a Tower of Hanoi System in Al (Submit to the Blackboard) Build a knowledge base for each of Ns,N=3,4,5,6,.(N= the number of disks) Testing your knowledge base for each of the Ns: - Determine a sequence of actions for a randomly selected start configuration to a randomly selected stop configuration - For example, if N=4, from
image text in transcribed

How many times will Hello be printed? Express that number using summation, then give a closed form formula for the sum (means simple arithmetic expression without summation notation) c) j= 1; while (j = n){ for (k = 0; k sj; k++){ print "hello";} j = 5j; print "hello";}
image text in transcribed

hello i am stuck writing a code in visual basics. i keep getting an error message and i dont know how to fix it. the error message reads " structure 'double' cannot be indexed because it has no default propert" im not sure what that means. Option Strict On Public Class InchesToMetric Private Sub MillimetersButton_Click(sender As Object, e As

8.2 I could use some help with this code, in embedded c if you can. If not i can convert from c+. Thank you for your help! I share the link with my class to add more votes! 2. Consider the following function that counts the number of words in a string: void words (char string(1) { int result=0, i=0; while (data[i] !=0) if (data[i++)=='') result++;
image text in transcribed

Artificial intelligence course explain How to implement the open list if we want to do breadth-first search
image text in transcribed

insted of legth of rectangle is base of rectangle and hight of rectangle then area of rectangle code in c and put output thank you nimations Slide Show Review View Acrobat Shape Format Tell me 4.2 DT- O-) thapes on 3D Model Smart Chart in Action Comment Test Header wordt de je Box Footer Time Number Video Audi Format Program 3.1 Phapo // this
image text in transcribed

What type of stream can you use to send data from an application to a network?

8. Write a C++ function that tests if every element in array A is equal to its corresponding element in array B. The function should return true if all of the elements in A are the same as in the array B.14 points)
image text in transcribed

employs tools, techniques, and methodologies designed to speed application development. A Systems analysis Systems investigation Rapid application development ( RAD ) D Technical feasibility
image text in transcribed

Development of a Custom Encryption - Decryption Tool with Security Analysis 1 . Draft of final project paper 2 . Must include Topic, Abstract, Chap 1 ~ Chap 4 ( Chap 3 Proposed mechanism / scheme / Research; Chap 4 Experimental results and Discussions or Analysis ) give me a research paper on this

Select one option. The tightest asymptotic upper bound for N 2 l o g N + 2 N ( N ) ( 2 N ) ( N 2 ) O ( N l o g N )
image text in transcribed

Describes three classes of constraint devices.

Can someone help me make a database named db_Library SQL using CMD? 4 tables only. Please screenshot all results!! Here's all the information: Metadata for the tables TB_Author TB_Book Author_Num Int Book_Title varchar(50) Author_Last varchar(30) Book_Code varchar(4) Author_First varchar(30) TB_Publisher TB_Type Publisher varchar(50) Type

I am trying to create a simple make file. I know the problem is with spaces or tab. I tried to change the spaces or tabs but it's still the same. error. "Makefile 2 missing separator stop" Please be aware if you'll copy an online solution or copy someone else's solution you will get a bad review. 1 all:a.out 2 echo: "Build Done!" 4
image text in transcribed

Assignment Overview Use Decision Tables to decompose business scenarios into conditions, actions, and rules to represent logic. You may type your answers directly into this document and save the final version as a PDF for submission. If necessary, edit the tables to add rows or columns. Note: this is an individual assignment. Although you may
image text in transcribed

Wumpus World can be modeled with predicate logic formulas that are more concise than the propositional logic we used before. Whereas propositional logic necessitates a separate rule for each square, predicate logic just needs one formula to define the relationship between there being a breeze and a pit in an adjacent square

A Word feature that hides header and footer information, including the page number, on the first page of a document. A . crop B . suppress c . scale

A debugger in an IDE can detect variables that are declared but never used. a ) True b ) False
image text in transcribed

AN...HELP! Paws Assisting Today's Youth Task Instructions Insert subtotals, using the Sum function, for each category in the Level field, sorted Largest to Smallest, in range A3:H13. The subtotals should add the values in the Weeks Completed field for each Level category, and then include a grand total. PATY Current Matchup.xisx - Excel Home
image text in transcribedimage text in transcribedimage text in transcribed

Chapter 6 FACEBOOK MOVIE VOTING Create . le Case Definition dacument and design a document "hown in Figure 3.96 oFiei 3.ent andesige Windows form mock-up based on the REQUIREMENTS DOCUMENT Date Date Submitted Application Tiele October 16, 2016 Facebook wants you to select your favorite movie of the year and allows to vote for his or her overal
image text in transcribed

Hierarchical and network database system use query languages that examples of this type of DML .

Using only NORgates, implement X= AB + C+ D(E + FG)

Site security of the data center itself includes barriers to entry, coupled with authentication techniques for gaining physical access

Consider a database for a business organisation that stores the data in five tables named Product, Order, OrderItem, Inventory and Supplier. Prepare a security model for this database by filling the given table. You can include database operations such as Insert, Update, Delete, Query, Modify structure, Grant and Revoke etc to complete this table.

Consider the following scenario. You have two solutions to solve a given problem. Option As time efficiency is in O(n log n), while Option Bs time efficiency is in O(n2). You, therefore, hypothesize that Option A is always better than Option B. Yet when you test the two competing methods, you find that Option A is only faster if n is at least 100

Which of the following is not a technique used by DRM technologies?

Showing 500 - 600 of 1507
  • 6 / 16