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Databases Questions and Answers February 14, 2021

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Discuss the advantages and disadvantages of using circular logging instead of continuous logging . Discuss the main hardware / software components used in cell phone communication

The television series Game of Thrones features several Great Houses, each with several characteristics, including the name of the house, its sigil (i.e., symbol), its motto and the name of its current head of the house. Create a class to represent such a Great House, based on the following instructions: The state of the class must include the four

D . ( 1 ) The history of the computer, though it covers less than seventy years, can be divided into five distinct generations. ( 2 ) Computers from the first generation, from 1 9 4 0 to 1 9 5 6 , used vacuum tubes for circuitry and were huge, taking up whole rooms. ( 3 ) Punched cards were used to input information. ( 4 ) Output came from

Is each of the following languages regular? Prove (by providing a regular expression or NFA) or disprove. L3={wvwRw{a,b},v{c}}(wR is the reverse of string w.)
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Please help, thumb up, thank you ! Draw a business process data model (REA diagram) with cardinalities (use Crow's Feet notation for cardinalities) for the OPERATING EVENTS for PPE SUPPLY'S SALES/COLLECTION process described in the narrative . Remember to distinguish between operating events and information events . Information events are not
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Please also provide screenshots of all histogram. Use python to plot a histogram of total_bill and another histogram compare total_bil and tip. Instruction: import seaborn as sns to get the data and use matplotlib for a histogram. 0 total_bill tip sex smoker day time size 16.99 1.01 Female No Sun Dinner 2 10.34 1.66 Male No Sun Dinner 3 1 2 21.01
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Which of the following is not a reason for using the explicit syntax instead of the implicit syntax for joins? Group of answer choices The explicit syntax is an older syntax that works with legacy code. The explicit syntax is easier to read and understand. The explicit syntax lets you combine inner and outer joins. The explicit syntax lets you

Help with this Java project please. I listed the departmentstore, departmentstoretest, staffmember, staffmemberio, hourly, and exective below. DEPARTMENT STORE: package departmentstorepkg; public class DepartmentStore { private static final int DEFAULT_SIZE = 10; private StaffMember [] myEmployees; private int myNumberEmployees; private String
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5 . What policy domains do a security architect focus on ?

Use Keras Model with three layers of a neural network to classify a random dataset. The first layer (input layer) has four neurons, the second layer has three neurons, and the third layer (output layer) has only one neuron. You should use at least two different activation functions and two different optimization functions.

Unix 6:34 PM Touch to return to call 46:50 1 T-Mobile 43% . a savstate view.usg.edu Computer files containing nothing but printable characters are called files. text binary document ASCII Save Question 46 (2 points) You can start Emacs by entering the__command in the terminal window or at a command line in UNIX/Linux. em emcs emacs Save Question
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public static void mystery ( int n ) { if ) ( 1 { System.out.print ( n ) ; } else { mystery ( n 2 ) ; System.out.print ( " , " + n ) ; } } ( 4 points ) What is the output of mystery ( 1 ) ? ( 4 points ) What is the output of mystery ( 2 ) ? ( 4 points ) What is the output of mystery ( 2 5 ) ?
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f(x)=x^(6)-3.3 The zero (s) of the function i(s)/(a)re at app

what does server HTTP response code 5 0 0 mean? service unavailable, insufficient storage, bad gateway, internal server error, which is correct?

Why cyber governance is important? Justify your answer.

What does the " IN " function do ? Adds the specified value into a field Searches for a geospatial location Nests a formula inside another formula Searches for a value in a list
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Q 2 . Use the following code fragment: Loop: ld x 2 , 0 ( x 1 ) ld x 4 , 0 ( x 3 ) add x 5 , x 2 , x 4 sd x 5 , 0 ( x 3 ) addi x 1 , x 1 , 8 addi x 3 , x 3 , 8 sub x 7 , x 6 , x 3 bnez x 7 , Loop or , x 1 0 , x 8 , x 9 Assume that the initial value of x 6 is x 3 + 2 8 0 . Assume early evaluation of branch instruction, i . e . , the branch outcome
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Write a program to calculate a rectangle area. The user should input the length and width of the rectangle.

Please read the carefully this is very important. This question was answered before on chegg, I would like to see a different approach with more details. It is not aurgent so you can take your time to make sure all the answers are correct and every question was answered Instruction Set Design Design an instruction set of a 16-bit CPU that has only
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uppose we had a CPU design that can only do addq instructions as presented in the lecture, and we want to augment it to also support a new increment instruction: ncq REGISTER Question 1 (4 points) (see above) Which machine code encoding for this instruction would be possible to implement and require the fewest changes to the logic between the
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Below is the outline of a MATLAB program that calculates and plots the distance fallen in each second by a free - falling object. Fill in the blanks with appropriate code, following the directions in the comments provided in the code. You may not modify any of the code that has been provided. s e c =
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6. Represent the following precedence graph with (a) fork/join and (b) parbegin/parend using semaphores, if necessary S2 S3 S4 S5 S6 S7 S8
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Consider the following DFA [State Diagram Attached] - $$ \begin{array}{1} \text { DFA } M=(Q, \Sigma, \delta, s, F) W Q=\{1,2,3\}, \Sigma=\{a, b\}, s=1, F=\{2,3\} \ \delta \mid a^{b} W \begin{array}{1[CC] 1 & 2 & 2 2 & 1 & 3 3 & \mid & 3 & 2 \end{array} \end{array} $$ Convert the given DFA to Regular Expression. ELIMINATE the states in the
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Visual Basic: Write the code for a function named GetMajor. The function should prompt the user to enter a major field of study and then return the users response. Then write a statement to invoke the GetMajor function, returning the result to the strCurrentMajor variable.

West Image Puzzle The west-puzzle.png image is a puzzle. It shows something famous, however the image has been distorted. Use if-logic along with other pixel techniques to recover the true image. The true image is exclusively in the blue values, so set all red and green values to 0. The hidden image is encoded using only the blue values that are

which of the following statements is true regarding syntax of conditional statement ?

Android can be used to develop which types of apps?a. Photography c. Financeb. Reference d. All of the above

The difference between risk assessment and an IT security audit is that risk assessment is the process of assessing security - related risks to an organization s computers and networks from both internal and external threats. Whereas a security audit evaluates whether an organization has a well - considered security policy in place and if it is

assume x is an integer

I tired run this small code but ending up the errors I went the code and didn't find any problem. Please help the finding bug and fix the error public class Lesson8 { public static void main(String[] args) { aircraft cessna172 = new aircraft(); // creates object of class aircraft aircraft piperSaratoga = new aircraft(); cessna172.passengers = 4;
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please answer question 4 and 5 based on question 1 i'll upvite you(urgent).... this the insert sales function Question 1 (6 marks) Assume you are creating a stack class. Given the student information as Date, Item, Qty, UnitPrice, and Amount. Please define a SalesNode to be used for creating a linked list. class Sales Node { public: ...
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The main objective of this lab is to study and analyze merge sort and its time complexity in different scenarios. Task 1: Write a program that performs recursive merge sort and compares the execution time for the following three conditions: A. The input list is sorted B. The input list is half sorted C. The input list is reversed Task 2: Analyze
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Answer question please Compare the following: A paperback book and an eBook; A paper-based map and a smart phone map Answer the following questions: (a) What are the main concepts and metaphors that have been used for each (think about the way time is conceptualized for each of them)? (b) How do they differ? (c) What aspects of the paper-based
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Need done ASAP thanks! :) Write the following propositions in English. Write if the statement is true of false. (a) ((x=1)(x=0))(x2=x)xN (b) xN such that x2=x
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Data modeling is obviously very useful in database design, but what are other uses of data modeling that can be beneficial? Have you used data modeling (or a process flow)?

-12 4 5 8 11 m mean(x) y var(x) m-(1/N) ? xi (mean) v-(1/(N-1)) ?(w-m), (variance-square of standard deviation) Note: where N-number of data values 7. Ifx and y are random values between 0 and 1, what is the range of values of z, where 2 (x + 2) Maximum z Minimum z_
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What are the main characteristics of LTE radio access networks?

2. Discuss the growth of the below functions (Show the work) f(n)=(logn) bogn a. b. f(n) = 2/2bog ni f(n) = (V2) by a f(n)=n Hosen C. d
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Operating System 161 (OS/161)- Please code in C. Show how to implement a Conditional Variable with a Semaphore. Note: in this case, Conditional variables are Stateless. Condition variable can only be used with the operations wait and signal. The operation x.wait(); means that the process (thread) invoking this operation is suspended until another

The last jump type is the indirect jump, which is often used for switch statements in the real world. Switch statements are a special case of if - statements that use only numbers to determine where the control flow will go . Here is an example: switch ( number ) : 0 : jmp do _ thing _ 0 1 : jmp do _ thing _ 1 2 : jmp do _ thing _ 2 default: jmp

How to do label encoding and one hot encoding in linux(shell script)(bash script)

Day 1 2 3 # of times rain fell 3 2 0 Which graph should be used? a) NP b) C c) X-R d) X-S

write down all functional dependencies (FDs) shown in the ERD.Do not write down trivial functional dependencies
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2 . IP address management a ) Consider a classless inter - domain routing ( CIDR ) address scheme using a 2 0 bit prefix. What is the maximum possible number of hosts in a subnet?

29 A program that combines object files into an executable program is called a a. compiler b. loader c. linker d. assembler 30. How many hexadecimal digits are used to represent 12 binary bits? a. 3 b. 2 c. 4 d. 1 31. Thein a binary byte is the left-most bit. a. MSB b. LSB c. 0 d. 8 Dage 5 of 8
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Write a Java program called DigitCounts, which prompts the user for an integer and prints the distribution of the digits 0-9 as illustrated in the following input/output sample. Enter an integer: 180088999 0: 3 : 4: 5: 8: 9
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Question 2 ( 6 marks ) Complete the construction of the following deterministic pushdown automaton that accepts the language L = { 0 n 1 3 n i n { 0 , 1 } * * : n 0 } The automaton is given by M = ( Q , , , , q 0 ) , where = { 0 , 1 } , = { $ , S } , Q = { q 0 , q 1 } and by the following instructions. Complete the ride - hand side for each of the
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What is a lexeme in lexical analysis? What is a lexeme in lexical analysis? An intermediate representation of the code generated during lexical analysis The smallest unit of meaningful information identified by the lexer A pattern used to match tokens in the code A token that represents a specific category of language constructs

c into vertex form and state the coorc y=x^(2)-2x+5

Write, compile, and test a program named Comments that displays a statement that defines program comments. Include at least one block comment and one line comment in the program.

Task - 1 : Write the following method in Java: public void reverse ( ) The method will reverse the linked list. Head will point to the last node of the linked list and all the pointers ( addresses ) will be reversed. The last node ( a new head ) will point to the second last node and so on . The old head node will become the tail node in the
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To delete a file, some operating systems will initialize the storage area after removing the files entry in the file system or the file allocation table, and then updated the storages free list. Meanwhile, other operating systems will skip this storage initialization process. Discuss the advantages and disadvantages of these two deletion methods.

Mini Project 1 : Reciprocal - Array - Sum using the Java Fork / Join Framework

Problem #3: (35 pts-5 pts + 8 pts + 8 pts + 14 pts) (a) Either draw a graph with the following specified properties, or explain why no such graph exists: A simple graph with five vertices with degrees 2, 3, 3, 3, and 5. (b) Consider the following graph. If there is ever a decision between multiple neighbor nodes in the BFS (Breadth First Search)
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1. Identified at least two security issues in Oracle that should be addressed when the choice is to install and use Oracle database ? 2. identified at least three key concepts of Oracle Database security?

I would like to delete my wuestion under review

For those that keep on repeating wrong answers copied from others, please stop. Problem 3. [10 points] Using the process discussed in class and in Linz, convert the following CFG to a NPDA. This means that you must first convert the grammar to a suitable form, from which you can construct the NPDA as described. You may use JFLAP to help you draw
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use delay(dlack-20000000) de 13:222(baud=9600, amit=PIN_06, rev=PIN_C7) BYTE seconds: BYTE int_count: Wint_rtec voit dock_tar(#-Int_count==0 +-econds; int_count=16:11 void main() BYTE start; int_count=76; set_timer: setup_timer_0(ATCC INTERNAL RTCC_DIV_256) enable_interrupts(INT_ATCC): enable_interrupts(GLOBALI: do printf press the "T" key to
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Language: R The `HELPfull` data within the `mosaicData` package contains information about the Health Evaluation and Linkage to Primary Care (HELP) randomized trial in tall format. Generate a table of the data for subjects (ID) 1, 2, and 3 that includes the ID variable, the TIME variable, and the DRUGRISK and SEXRISK variables (measures of drug

write a java program I want the ship to be randomly between row 1-9 and from column A-J the ship is three spaces long use the random class and also af ter randomly placing the ship ask user five times where the ship is placed give the user five attempts to guess where the ship is at and after five attempts start over and randomly place the ship

bit hesadecimaleach otal spts bit hesadecimaleach otal spts
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When attackers obtain access to "tier 0 " , they are only one step away from access to the entire enterprise identity structure.

Which of the following preprocessor directives does not constitute part of the preprocessor wrapper?

Please write two methods in Java. One should take an array of doubles as a parameter, returning the largest value. The second one should also take an array of doubles as a parameter and return the sum.

Explain why SSL needs the Change Cipher Spec Protocol, while IPSec does not need such a protocol.

Which of the following statements regarding abstract methods is false? a . An abstract class can have instances created using the constructor of the abstract class. b . An abstract class can be extended. c . A subclass of a non - abstract superclass can be abstract . d . A subclass can override a concrete method in a superclass to declare it
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Which Packet Tracer component ( hardware or software ) in this lab acted as your IoT gateway?

C PROGRAMMING Write a program which, saves information from football games. The program asks first the amount of teams from the user. After that the program asks the user to input the following information about each team. 1. The name of the team (example. Manchester United) 2. Number of wins. 3. Number of defeats. The program reads this

D. Graph and stack A bag is a container of a finite number of objects having the same data type and in no particular order. a) True b)False An array based implementation does not impose a fixed maximum size on the data structure a) True b) Fals When the memory to which a pointer variable point is no longer needed, programmer deallocates it by
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Java Q6. addToInventory Write a static method addToInventory that takes two arguments, inventory and shipment, both of which are TreeMap . These maps show the number of each item in an inventory and a shipment. The method adds the shipment to the inventory, leaving the shipment unchanged. The method doesn't return anything, just updates the
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Using Raptor. create the following 2 programs in Raptor: #1. Using Raptor, Write a Program for calculation- Calculate the average of two numbers provided by the user and display the result. #2. Using Raptor, Given two sides of a triangle, calculate the hypotenuse. PLEASE HELP ME, AND BE DETAIL AS MUCH AS YOU CAN. THANK YOU.

C program Write a function to calculate sample variance of an array of numbers. Hint: = {1, , }, sample variance S 2 = (xi X) n i=1 1 , in which = =1 ? describe your code Q6. (15 marks) Write a function to calculate sample variance of an array of numbers. Hint: X = {x1, ..., xn}, sample variance S2 - (xi-x) in which X = 97_, xi? n-1 n
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Suppose Host A wants to send a large file to Host B . The path from Host A to Host B has three links, or rates R 1 = 1 Mbps, R 2 = 3Mbps, and R 3 = 5 Mbps. (2 pt.) Assuming no other traffic in the network, what is the throughput for the file transfer? (3 pt.) Suppose the file is 10 MB. Dividing the file size by the throughput, roughly how long

You will be writing classes that implement an inventory list simulation for a bookstore. The list will be a dynamic array of Book objects, each of which stores several pieces of information about a book. You will need to finish the writing of two classes: Book and Store. Program Details and Requirements 1) Using the Book class declaration, write

Consider the relationship between authenticity and integrity. Suppose parties A and B are talking to each other. Authenticity would mean that messages received by A are actually sent by B. Integrity means that on the route from B to A, the message has not changed in between. Now consider: Does integrity imply authenticity? Please state your

(f) Prove that for any non-negative integer n 2 4, 3" s (n+1)
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1. Convert to decimal: 0x4abc
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Definitions. Let n, k be non-negative integers with n > k. . When n > 0, then the factorial of n (denote n!) is defined as the product of all positive integers less than or equal to n. That is, n!-1-2..-(n-1)-n. By convention, we define . The binomial coefficient n choose k (denote C(n, k) or ,) is given by (20 points) Use mathematical induction
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( a ) Device a method to represent a number ( b n - 1 ) as a base b number, where b can be any integer larger than 1 and n any integer larger than 0 . Give a mathematical derivation of your result. Using this method convert ( 5 2 - 1 ) and ( 5 3 - 1 ) as base 5 numbers. ( CO 1 ) Answer me correctly with proper explanation , otherwise i will
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Given details of 'n' students, design UI and write the JavaScript to determine the average marks scored by each student. The details of the student include name, register number, and five marks. Write a function to determine the total marks scored by the student. Input Format Number of students Register number of student1 Five marks of student1

In emu8086 ; Find the ICW1 and ICW2 if the 8259 is used with an 8086, single, edge triggering, no ICW4, and IR0 is assigned INT88H. Note: Please do not copy paste previous answers for this question because I need the answer for emu 8086; if you do not know the answer please do not make the question answered.

In the next set of questions, we consider a related cluster of definitions, which seek to formalize the idea that certain nodes can play a gatekeeping role in a network.

Question 7 (1 point) Which of the following lines of Ccode require the most memory? char al4 char "a.ptr Please pick this answerr nt a-99999 Question 81 poind ose ehe user enter, two comand i-arpreres after "S Jaoue. which C code wold be most useful to tell which argument was longer? Question 9(1 poind Assuming an array and a pointer are setup as
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Create a program in C++ that asks a user for a temperature in celsius to calculate the entropy value and outputs the final value.

byte addressable menary I10 Opts byte addressable menary I10 Opts
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Which component of the 6 components of an information system is responsible for the most frequent security problems for a business?

The _ _ _ _ pane of a folder window displays the properties of Windows objects. Question 3 5 options: a ) qualities b ) properties c ) attributes d ) details

PROLOG QUERY: write_descendant_chain .Later chapters examine the special predicates write and nl, which can be used to produce output other than just the values of variables. For example, if there is a clause write_child(X,Y) :write(X), write( is a child of ), write(Y), nl. then the query write_child(john_smith,sue_jones) will always succeed and

Please solve showing steps clearly 1.3. Prove that 5n o(n!)
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a. Check all of the following MATLAB commands that creates a vector of the even whole numbers from 20 to 45? A. 20:45:2 B. 20 2:45 C. 20:2:45 OD. 20:45, 2 E. 2* (10:22.5) b. Suppose the following two MATLAB commands are executed: A- [1 2 3 4 5] B [1 49 16 25 Which of the following commands gives the sum of the prducts of the corresponding terms in
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As is relevant to this position can you explain what computer ( software / hardware ) skills you have?

Create a compiler and edit some of the compiler rules (show what rules you edited please) using lex and yacc

Sort the array 10,20,15,30,40 using MAX-Heap

Choose the three functions of a WAN Edge router.

Assume your agent uses genetic algorithm for certain optimization task. The description of a chromosome ( or state ) is of the form a b c d in which a , b , c and d can take any value from 0 to 9 . The fitness function f ( x ) is as below: f ( x ) = ( a + b ) + ( c - d ) The initial population x 1 , x 2 , x 3 and x 4 are as below x 1 = 2 9 1 3 x 2

computer Architecture: (Memory Hierarchy) (a) Explain the concept of a memory hierarchy. Why it is represented as a pyramid? (c) Explain the concept of locality of reference by providing examples and state its importance to memory systems.

C program Create a struct Rectangle including 2 variables: width and height in doubles. Print the area and perimeter of the rectangle? Q7. (15 marks) Create a struct Rectangle including 2 variables: width and height in doubles. Print the area and perimeter of the rectangle
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THIS IS WRITTEN IN PYTHON >>IS A HIGH SCHOOL COMPUTER SCIENCE COURSE. NOT TOO COMPLICATED PLEASE QUESTION #1 Write a program to generate passwords. The program should ask the user for a phrase and number, and then create the password based on our special algorithm. The algorithm to create the password is as follows: If the users input word is less

produce a list of all customers who live in florida and who have ordered books about computer

I need help on this lab simulation. How to get in the website? go to oPhysics website then click on Uniform Acceleration in One Dimension and then do the following: Testing Velocity Variation: 1-RUN SIMULATION @ V=1 TO 5 (INCREMENT =1); A=0,5 (INCREMENT=1) STARTING POINT =0; V AND A ARE ALWAYS NON-NEGATIVE 2-TAKE ANY 3 OF SCREENSHOTS [

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