S
  1. study help
  2. subject categories
  3. computer science
  4. databases
  5. july 2020
  6. 09

Databases Questions and Answers July 09, 2020

Expert-verified solutions to help you succeed

Problem 3: Write your own matlab code that will find the roots (or zeroes) of a given function by using the Newton-Raphson method discussed in class. This method is based on the following: one starts with an initial guess, then the function is approximated by its tangent line, and one computes the intercept of this tangent line with the x-axis.

please reponpond fast ,,, i have only 40 mins POPUCIT Object Oriented Analysis and De Question 1 Interaction diagram include? Not yet answered Marked out of 1.00 a. Sequence Diagram. O b. collaboration Diagram. c. Both A and B d. None of the above. Flag question Esc F1 F2 Object Oriented Analysis and Design Which of the following is true about
image text in transcribedimage text in transcribedimage text in transcribed

For the implementation of the motion detector circuit in 1 b , f ( A , B ) = A B ' , which switch should be used for input A ( to keep with the idea of positional notation and the order of variables for a function ) ? SWo SW 2 SW 1 No answer text provided.
image text in transcribed

Who belongs to the audience of a project proposal? (select all that apply) Select one or more: a. representatives of all stakeholder groups O b. project partners I c. development team d. client
image text in transcribed

Which of the following is an example of data at rest? More than one answer may be correct. Check All That Apply data in a fitness tracker app that is shared with friends and family photos stored on a phone's memory card an email being sent backup files stored on an offsite server
image text in transcribed

Case 2 . 3 Handling Authorizations Angelo Diaz signed the authorization form below. When his insurance company called for an explanation of a reported procedure that Dr . Handlesman performed to treat a stomach ulcer, George Welofar, the clinic s registered nurse, released copies of his complete file. On reviewing Mr . Diaz s history of treatment

Please answer it by using C++ program 1. Using both array and vector, write a program that will produce basic statistical analysis of a data set. The analysis should include: a. Highest b. Lowest Mean d. Mode e. Median f. standard deviation g. Sorting c. 2. Using vector, insert/remove element in/from middle
image text in transcribed

Match each of the arrays defined here with the best descriptor of that array: The array alpha defined below by two components, a reference to the array and its size:

1 . Write a c + + program to compute the logarithm of any value to base 2 ( Remember that the logarithm of any x to any base b can be found through the following equation ) . The user inputs the value. Use your program to find log _ 2 of x = 4 . 5 as an example.

Hello, I need help in all of these for coding in python. I know its really long and I am so sorry but I would really really appreciate it if you can help me with it! Train class Instance variables: the name of the train String name the maximum number of passengers the train can transport max passengers the number of passengers currentl on the
image text in transcribedimage text in transcribedimage text in transcribed

22.6) (baseball Database App Modification) Modify exercise to allow the user to locate players with batting averages in a pacific range. Add a minimum TextBox for the minimum batting average (0.000 by default ) and maximum TextBox. Add the button for executing a query that selects row from the players table in the which the BattingAverage column

explain what a Linux process is and the relationship between a child and parent process

Your team is tasked with developing an Inter-Office Messaging Application, IOMA. This application will be installed by the users to communicate with each other while physically at the office building. Your team must implement a hybrid P2P architecture, in which a server is used to register and locate the peers, allowing them to communicate with
image text in transcribedimage text in transcribedimage text in transcribed

Q.4. Convert the decimal numbers in Q.1. to hexadecimal numbers ( 14 points) a. (3456. 2332) 10 b. (763.2345)
image text in transcribed

Add appropriate @media print styles so that when your page is printed (you can use the Print Preview feature of your web browser to see the different look): Your home page graphic does not print Your list of Assignments links is an unordered list

Write pseudo-code and analyze. Note: Algorithm should be O(n) for 2 color problem. Suppose we are given a sequence S of n elements, each of which is colored red or blue. Assuming S is represented as an array, give an in-place method for ordering S so that all the blue elements are listed before all the red elements. Can you extend your approach to

Write a JavaFX Application that allows the user to draw (scribble) on the scene by dragging the mouse. In the upper-left corner, provide a button to clear the scene and a color picker to choose the current drawing color. The button should be labeled "Clear scene". Hint: Use the standard JavaFX ColorPicker. (Or if you already wrote one earlier, you

C++ (b) List the three repetition statements provided in C++ and their formats. List the four required elements of a repetition statement. Which repetition statement is preferred for user data input and its validation
image text in transcribedimage text in transcribed

Exercise 1: Tools and Techniques Compare and contrast Airodump and Aireplay. Discuss the applications of Injection Testing Exercise 2: Ethics and Wireless Networks Is it ethical to piggyback a neighbours open WIFI? Justify your answer. Discuss the ethical implications of securing a wireless network. Exercise 3: Reflection Discuss an ethical

Consider the arrival time and burst time of six jobs specified in the table below. a . Apply the Shortest Remaining Time to Finish ( SRTF ) with IO operating system algorithm. b . Generate a table to identify the process id , exit time, turnaround time, waiting time, and response time. c . Generate a Gantt chart to show how / when each process is
image text in transcribed

Protecting against hackers is primarily a matter of _ _ _ _ _ . Group of answer choices backup and recovery concurrency control access control computer security integration control

Which part of a machine code instruction specifier indicates which instruction is to be carried out? Question 9 options: Label Opcode Mnemonic Operand

QUESTION 2 115 MARKS a) How many strings can be formed by ordering the letters PQRST if Pappears befores? (2 marks) b) There are 15 hospitals in a town. How many different ways can 5 patients are sent to the hospitals se that no 2 patients may be in the same hospital? (1 mark) c) There are 12 identical chairs that must be arranged in the following
image text in transcribed

1. Write a script in MATLAB to perform the following operations on the sentence str = 'a quiet frog jumps when vexed by lazy ducks' a. Count the letters. b. Put the letters in alphabetical order. b. (Read about the commands unique and setdiff). Are any letters missing?

Details such as Register number, name, quiz - 3 marks of those students who wrote for SET - A question paper and of those who wrote for SET - B question paper are maintained in sorted order in two separate lists L1 and L2. Write a program to merge the two lists in sorted order so as to facilitate mark entry in faculty login. Require code in cpp.

MUST USE "C" PROGRAMMING ONLY!!!! MUST USE ARRAY AND POINTERS WHERE SPECIFIED FOLLOW DIRECTIONS OR I WILL RATE POORLY AND REPORT TO CHEGG 3. On the page 230 of class material powerpoint, you will see a shot of 3 dragon ball characters and how their power levels changed over time. Please, create a script that will generate similar output by using
image text in transcribed

Regarding types of software, Recycle Bin in Windows ( or Trash Can in MacBook ) is classified as a ( an )
image text in transcribed

pointer

database systems are commonly used in business organizations with few exce Big data Relational NoSQL Hierarchical
image text in transcribed

Please do #13!!! C# ONLY. Please show work and thanks!! 11. Write a program named Eggs that declares four variables to hold the number of eggs produced in a month by each of four chickens, and assign a value to each variable. Sum the eggs, then display the total in dozens and eggs. For example, a total of 127 eggs is 10 dozen and 7 eggs. Modify
image text in transcribed

What type of hash is likely this? ee 2 8 7 f 2 6 5 add 4 9 caf 7 b 0 3 d 5 d 2 bcdaced 8 3 9 8 febac 2 4 6 b 6 3 2 f 4 fb 0 e 3 7 4 9 7 9 6 9 1 d Question 2 4 options: MD 5 SHA 1 2 8 SHA - 5 1 2 SHA - 2 5 6

1 void mixed 8_16-ex_1(void) if (18-a
image text in transcribed

A microprocessor, (clocked at the rate of 5 GHz), provides an instruction capable of moving a string of bytes from one area of memory to another. The fetching and initial decoding of the instruction takes 10 clock cycles. Thereafter, it takes 15 clock cycles to transfer each byte. 1)Determine the length of the instruction cycle for the case of

(chapter 13- sorting) This below question is from data structure c++, please read carefully what its asking for and give me a short c++ code. Mergesort void meraesort(int datal J, size t n) size tn1; // Size of the first subarray size t n2; II Size of the second subarray Divide the array in the middle Sort the two half-arrays by recursion Merge
image text in transcribed

write a Matlab script that prompt you to enter n, the order of the square array. Add an error check, n must be a whole number greater than 2. prompt to enter M, the number of square arrays to be generated. Add an error check, M must be a non-zero whole number. Use a repetition structure to create M square arrays of order Then following two lines
image text in transcribed

please help asap 144. vencmeavengers, comasdf (broke rule 5) 942. hyperiongavengers. con (breaks rule 1 , incorrect nunber in front) 567. greengoblinssheild. gov (breaks rule 2, too many letters) 324drdocm3249avengers, con (breaks format established in 1 (does not have 7,7 ) 765. Hosborn'876gshelld. gov (breaks rule 3 , has sonething other than
image text in transcribedimage text in transcribed

(b) Write the code for the function that computes and returns a vector containing the in-degrees of all vertices of a digraph given the adjacency list for the graph. Assume each adjacency list is a singly-linked, nullpos- terminated list of adjnodes. That is, in the last node the next field has value nullpos. struct adjnode t nt vertex; adjnode *
image text in transcribed

COMPUTER NETWORKS 4. How many bits do we use for the sequence number field in the TCP header? How many bytes can this number cover at maximum? Even if this many bytes were never transferred over a single connection, why might the sequence number still wrap around from the maximum possible sequence number to 0?

Sketch the output waveforms Q1,Q2,Q3, and Q4 for the Asynchronous Counters below assume the current zalue of Q1,Q2,Q3, and Q4 are 0110 respectively
image text in transcribed

In clustering analytics, what is the purpose of clustering?

Attributes can also be assigned domains. Which of the following is an example of a domain

If A = 2 D 3 h e x , B = F C 9 h e x Then AxORB is ( Write the answer without including any symbol for the system )
image text in transcribed

Hi need a coded solution for this ASAP! Prefer java or python solution Bessie has opened a bakery! In her bakery, Bessie has an oven that can produce a cookie in tC units of time or a muffin in tM units of time (1 tC,tM109). Due to space constraints, Bessie can only produce one pastry at a time, so to produce A cookies and B muffins, it takes
image text in transcribed

Simulation Assignment 1 . Write a code that simulates two independent exponential distri - butions with parameters 1 = 1 and 2 = 2 , and returns the variable Z = Y x . Generate a lot of samples of Z ( at least 1 0 , 0 0 0 ) and plot a histogram of the values of Z . Plot this histogram and the theoretical distribution found in problem 6 of Homework
image text in transcribed

15 15 Graphical Models w_good w_bad h_false h_true 0.3 0.4 Weather Holiday Ice Cream Sales #Tweets s_high s_low #high #low 0.8 h_true h_false 0.9 w_bad, h_true w_bad, h_false w_good, h_true W_good, h_false 0.2 0.4 A Bayesian Network Please fill in the following blanks. 4.0p a To explicitly define a joint distribution over four random variables:
image text in transcribedimage text in transcribed

Suppose we have a file that contains 10 a, 15 e, 12 i, 3 s, 4 t, 13 blanks, one 0 and one newline. Using the Huffman Coding algorithm with a binary tree representation: (a) Compute the optimal coding for each character. (b) What is the size of the compressed file in this case
image text in transcribed

Preview File Edit View Go Tools Window Help Screenshot 2021-02-08 at 16.10.50 Q Search Select all true statements about divide and conquer algorithms from below. Select one or more: Are always the fastest running algorithms Order of growth of run time is analysed by adding the cost of each line multiplied by the number of times it will execute The
image text in transcribed

Which of the following is a technique for increasing the speed of Access queries? a. Include fields considered optional for the query. b. Delete field lists that are not needed for the query. c. Type field names directly into the query design grid. d. Use Query Design View to join tables. How are aggregate functions different from other types of

A router has an updated Link-State Database (LSDB) as shown in Fig. Demonstrate how it could be used to identify the topology of the network the router belongs to by depicting the whole network including the link cost. A router has an updated Link-State Database (LSDB) as shown in Fig 2(a). Demonstrate how it could be used to identify the topology
image text in transcribed

are responsible for the design and implementation of information systems. In addition to computer knowledge and an information systems background, this position requires a thorough understanding of business systems and functional areas within a business organization. a . Chief Technology Officer b . Systems Analysts c . Network Administrator d .
image text in transcribed

There are some pseudo code I need to change these pseudo code into C++ codes I have all the header files , just change the pseudo code into c++ codes as per instruction given // ShuntBETTemplateSol.cpp : Defines the entry point for the console application. // ShuntingYardPostFixBETSol.cpp : Defines the entry point for the console application. //

Expertizing in Wireless networking and subnetting using Cisco Packet Tracer.

The System Log Daemon, rsyslogd, creates a socket for other system processes to write to . What is the path to this socket? Group of answer choices / tmp / log / var / log . sock / etc / rsyslog . socket / dev / log

what is the best code to use when coding gender

Why is Linux a target for hackers?

Can somebody please help me write a program that plays the card game of Hearts. I really need help on this because it's been driving me crazy for the past 4 days! Any help at all will be greatly appreciated! I have my program posted below. Here are the instructions:

I need the answer as soon as possible Q3 Each of the following words have two meanings put each one into two sentences that show different meanings: (5 marks) 1-mean 2-kind English 3-blue- 4- account. 5-leave
image text in transcribed

In class we showed that {+, ~} is functionally complete since all Boolean functions can be expressed in terms of addition and complement. Use this fact to show that {downarrow} is functionally complete. The downward arrow denotes NOR, which is the negation of OR
image text in transcribed

Problem 1 Part 3 : The owners want you to recalculate the amount charged from each attendee based on the fact that new members must pay a joining fee of $ 5 0 , and that their friends get a 2 5 % on the class cost. That is , just as before, a new member ( Y ) pays $ 5 0 , and a returning member ( N ) only pays the class cost. However, attendees

Which one of the following is a function of Pharmacy Information Systems? Select one: A. Inventory Tracking B. Pricing C. Decision Support D. All of the above

Objective Create a helper namespace header file that will provide an easy - to - use interface for frequently used functionality. Namespace Create a new Helper.h header file. Within it , declare a namespace named 'Helper'. Inside the namespace, declare AND define ( within the namespace body { } ) your first helper method: int GetValidatedInt (

Neep help creating a Java compilation of the instructions below. Please help! Program 3B: Birthstones and month names by Month US 2016 with Random Number Generator Write a Java program that gives the names of birthstones according to month. This is essentially the same program as last time, but you will generate a random integer between 1 and 12,

When the head pointer for a linked list is passed to a method using pass by value, the method can change the value of any node in the linked list. Group of answer choices True False

According to Mr. Dolan, a pointer should be defined as a variable capable of holding an address. a variable that remembers the current array index. a - > operator an address in the computer's memory A sequence class differs from the author's bag class in that items in the sequence are kept in order as dictated by the comparison operators of the
image text in transcribed

Which of these lists correctly orders the binary numbers from smallest to largest? Choose 1 answer: 1 0 1 0 , 0 1 0 1 , 0 1 1 0 , 0 0 1 1 0 0 1 1 , 0 1 1 0 , 0 1 0 1 , 1 0 1 0 1 0 1 0 , 0 1 1 0 , 0 1 0 1 , 0 0 1 1 0 0 1 1 , 0 1 0 1 , 0 1 1 0 , 1 0 1 0
image text in transcribed

The RDBMS automatically creates the _ _ _ _ tables in which to store metadata. Group of answer choices data schema data dictionary data appendix data authorization

A special processing chip found on video cards is the ( 1 point ) ROM. CPU. GPU. HDMI.

Develop a complete set the CRC model index cards on the product or system you choose as part of problem 10.1 ?

Question #1 Regarding MM02, Comprised of Two Questions, Each Worth 1 Point (1 Point) In step #16, you are instructed to check the box for Chk double inv. Below is a screenshot showing an explanation for Chk. double inv. The explanation is obtained by clicking on the description and then either right clicking on Help or selecting F1. Four common

Analyze the worst-case time complexity of the private member function height(BSTNode *t) of the binary search tree. Give the complexity in the form of Big-O. Your analysis can be informal; however, it must be clearly understandable by others. This is the code I have: else return height (p); 9 template
image text in transcribed

he process of maintaining the confidentiality, integrity, and availability of data managed by a DBMS is known as _ _ _ _ _ _ security. Group of answer choices information database data residual

General questions: a) What is the best running time for any comparison sorting algorithm? b) When would you use counting sort? c) Can radix sort use any counting sort or only the stable one? Provide a counterexample d) How would you split n 32 words into digits for radix sort? e) Finding half of the top students in our class can be found in O(n).
image text in transcribed

Logical form is ( select all that apply ) : the soundness of an argument the structure of an argument what similarly structured arguments have in common the validity of an argument
image text in transcribed

subject: Physical security Assignment is worth 50 points and 10% of your grade 1.Submit a review of an article where physical security failed 2.Propose a possible change in that organizations physical security that could have prevented the breach/failure for that scenario 3.Submit at least 2 but no more than 4 pages double spaced 4.No photos or

I am trying to test a query, to see if it works or not. This query includes parameters, so I am a little confused. declare @ProductLineName declare @ProductName declare @TypeOption declare @ID SELECT @ProductLineName = ProductLine, @ProductName = Product, @TypeOption = Type FROM [Product_T] WHERE @ID = id. This is a dynamic query and prompts user

A typical form of the quadratic equation is: x = - b + - b 2 - 4 a c 2 2 a How many roots of the quadratic equation a * * x * * * * 2 + b * * x + c = 0 can be safely calculated using the quadratic formula? Select the answer with the correct combination of number of roots and corresponding explanation: 2 because a quadratic equation has 2 roots and
image text in transcribed

QUESTION 8 What will be the value of x after the following code is executed? int x 20 while (x 100) { X X + 20 } O 120 O 100 This is an infinite loop O 80 QUESTION 9 How many times will the following do-while loop be executed? int x = 11; do { x = x + 10; } while (x
image text in transcribedimage text in transcribed

How do you enter the RAID Configuration Utility?

Consider the following code segment and answer the questions below. Doing question 9 first might help you with questions 6 - 8 if you are stuck. int i: int j: int[] arr = {6, 4, 7, 2, 1}: for (i = arr.length - 1: i > 1: i-) { System.out.println("Hello World!"): j = arr[i]: } 6. How many times will the above code print the sentence "Hello World!"?
image text in transcribed

5 Use the three-class confusion matrix below to answer the question below. The accuracy of the classifier is:* (2 points) Predicted class Class 1 Class 2 Class 3 12 Class 1 7 4 Actual class Class 2 5 13 3 Class 3 8 2 2 All options are not correct 50% 48% 62%
image text in transcribed

The regular expression that generates the language consisting of all strings over \ Sigma = { 0 , 1 } having an odd number of 0 s is ( 0 1 ^ * 0 \ cup 1 ) ^ * 0 . true or false

Q2 HOSPITALITY HOTEL Hospitality Hotel is a luxury hotel that whose guests are mostly business travelers. To improve its quality of service, it has decided to install network connections in each of its 600 guest rooms and 12 conference meeting rooms. All guests and employee should have connection the internet as well. Your task is to design the

4. Suppose that the variable "result" is declared as a TYPE. What is the type of the variable result in the following program? (1 point) byte b = 42; 1 char c = 'a'; short s = 1024; int i = 50000; TYPE result = (s *b) + (i / c)
image text in transcribed

Create a program to demonstrate the JTextField class Construct four text fields, text field one with 10 columns, text field two with default text, text field three with default text and 21 columns, password field with default text. Add all the above text fields to JFrame. Create an inner class for even handling then instantiate an object from the
image text in transcribed

Send operations are always non - blocking if buffering is used.

8 . 9 Suppose that we define a new centrality measure x i for node i in a network to be a sum of contributions as follows: 1 for node i itself, for each node at ( shortest ) distance 1 from i , 2 for each node at distance 2 , and so forth, where 1 is a given constant. a ) Write an expression for x i in terms of and the shortest distances d i j
image text in transcribed

The "Little Man" computer in the textbook uses decimal numbers for data words and instructions. This makes it easier to explain to students who do not know about binary numbers. (Unlike yourselves!) Real computers use binary devices and binary numbers. The Little Man computer can have ten operation codes (0-9), can address 100 10 words of storage

Create a program named arrayList.cpp. In that program, add the following functions. void Insert(int data[], int item, int& length); bool isEmpty(int[], int size); bool isPresent(int data[], int item, int length); void Delete(int data[], int item, int &length); void printList(int data[], int length); sample output: 1. Insert 15, 39, -90, 64 into a
image text in transcribed

You are given the data for Uber drivers. It contains their ID , starting date, end date and the yearly salary. For drivers who are no longer associated with Uber, the data has the end date. For others who are still working with Uber, the column 'end _ date' is empty. Identify the year - over - year fluctuations in the driver attrition rate for

Assume the following transactions are to be performed: Transaction S: read(a); a=a+10; write(a); read(b); b=b*5; write(b); Transaction T: read(a); a=a*2; write(a); If the initial value of a is 10 and the initial value of b is 20, what are their final values if we perform the transactions serially, using order S,T? Using the same initial values,

USING SCHEME LANGUAGE Implement def, which simulates a python def statement, allowing you to write code like (def f(x y) (+ x y)). (define-macro ( def func bindings body ) 'YOUR-CODE-HERE ) Previously, my code is: (define-macro (def func bindings body) `(begin (define-macro ,(cons 'x bindings) ,body) x)) However, the test case (def f(x y) (+ x y))

Building a diverse and skilled workforce falls under which of the three core public health functions? Assurance Assessment Policy Development
image text in transcribed

True or false: if d = gcd ( a , b ) , then d = am + bm for any m and n

PLEASE COMPLETE ALL TASKS. -- USE INDEX.HTML Show transcribed image text AJAX, mySQL and PHP Practice AJAX, mySQL and PHP Practice
image text in transcribedimage text in transcribedimage text in transcribed

How many bytes of arbitary data can a orofesm store in yhe mils register file

The RDBMS automatically creates the _ _ _ _ tables in which to store metadata. data schema data dictionary data appendix data authorization

A company's computer system with thousands of computer users had the administrator console set up to display incorrect logins such as when user enters the wrong user name and / or password. The newly hired assistant suggested that all successful logins should be displayed as well in addition to the failed login attempts. His claim is that, doing

Write a program to simulate a vending machine with the following characteristics: - The machine sells sodas, and a soda is 1 5 cents. - The machine does not provide change. - The user is expected to provide either Dimes or Nickels. - The machine can be in one of the following states: - State 1 : No coins - State 2 : 5 cents ( N ) - State 3 : 1 0

[1] Please draw an ERD based on following description. Consider the following set of requirements for a UNIVERSITY database that is used to keep track of students' transcripts. This is similar but not identical to the database shown in Figure 1.2: a) The university keeps track of each student's name, student number, social security number, current
image text in transcribed

2. Short Questions: (15 points) a) Declare a named constant CP which has a value 1.95 x 10-3 b) Write a selection statement that checks if a variable y is between 10 and 100, then display the value of y, otherwise display invalid value. c) Write an assignment statement to compute the volume of a cone using the following formula: (Assume R, H are
image text in transcribed

Showing 1300 - 1400 of 1500
  • 14 / 15