Databases Questions and Answers November 09, 2019

You read information from a file into your program using the stream extraction operator ( > > ) just as you use that operator to input information from the keyboard. True False

1 kNN Classifiers (40pt) Given the following dataset: 1) (20 pts) Classify instance No. 9 using the kNN classifier with k=3. Use squared distance (i.e., Euclidean distance, L2 distance) as the distance measure between two instances. 2) (10 pts) Draw the decision boundary of kNN classifier with k=1. Only consider the instance NO. 1, 2, 6 in the

Given the game search tree, answer the following questions by using alpha-beta algorithms: 1) Determine the optimal move for the current player at the root of the tree (MAX)? 2) What nodes will be pruned using alpha-beta algorithm. 3) How does the alpha-beta algorithm differ in terms of time and space complexity compared to the Min-Max algorithm?

Understand the general structure of mutex lock implementation and answer the questions. acquire) f while (!available) : /* busy wait */ available false; release() f available = true; acquire lock release lock ) while (true) ; critical section remainder

,

When setting up a backup, select _ _ _ _ _ to exercise the greatest control over the files and folders you choose to backup. Group of answer choices Let Me Choose Select Files to Backup Let Windows Choose Custom Backup

1 . Use K - maps to find the minimal SOP and POS expressions for each of the following logic functions. Indicate the distinguished 1 - cells in each map. Show all the possible solutions in each case. a ) F = p r o d W , x , Y ( 0 , 1 , 3 , 4 , 5 ) b ) F = A ? , B , C , D ( 1 , 4 , 5 , 7 , 1 2 , 1 4 , 1 5 )

The 8 - bit twos compliment binary number 1 1 1 1 0 1 1 1

In VBA, Integers can only hold numbers in the ratige - 3 2 , 7 6 8 to 3 2 , 7 6 7 and consume 2 bytes of memory space. Many programmers choose to use Doubles as their data type for revenue ( e . g . Dim myRevenue as Double ) . Why? Because Doubles are smaller than Singles Because Doubles support negative values and Integers do not Because Doubles

A salesman should visit 6 factories U1, U2,.U6. Each visit lasts 1 hour and begins between 8am and 5pm sharp. U3 and U6 should be visited before U4 U2 to 1. US are in the same site: moving from one factory to the other takes no time. to U1 takes 2 hours U3 can only be visited between 2pm and 4pm. List all constrains in the problem What time should

for python 3 please PREV NEXTO xercise 71434 x WORK AREARESULTS The Springfork Amateur Golf Club has a tournament every weekend. The club president has asked you to write a program that will read each player's name and score as keyboard input, and then save these as records in a file named golf.txt First, have the program ask the user how many

Reading Question True or False: Python automatically inserts a newline character when you use the command. True False Check Itl ( 1 left )

When refferring to wireless security, we normally have to combine two words. The first one refers to the method of access, level of encryption, and security protocol for daya transfer ( WPS , WEP, WPA, WPA 2 , or WPA 3 ) . The second one refers to the way users authenticate in the wireless network. ( Personal or Enterprise ) . , While personal

/**** Assignment 1 C PROGRAMMING Program Description: This program appears to be a simple statistics program that calculates and prints the total album sales for five different artists in four different countries. The program starts by defining several arrays: "countries" contains the names of the four countries being considered "artists" contains

Ensuring that website content is not slanted in its point of view is checking fora. Audienceb. Authorityc. Biasd. Relevance 9 . Which of the following is a good precaution to take when making online purchases?a . Use the same strong password for all online accounts.b . Pay by debit card.c . Make sure http: and an open padlock displays in the

What will the following code produce in Matlab? x = [ 1 ; 1 ; 3 ; 5 ] ; n = length ( x )

In exercises 3 8 - 4 8 , determine whether the given pair of graphs is isomorphic. Exhibit an isomorphism or provide a rigorous argument that none exist.

0) Consider a row of n coins of values v(1)... v(n), where n is even. We play a game against an opponent by alternating turns. In each turn, a player selects either the first or last coin from the row, removes it from the row permanently, and receives the value of the coin. Determine the maximum possible amount of money we can definitely win if we

What is the main issue of AI nature that affects the ML - based decisions' transparency? a . Biased dataset b . Cheap computation power c . Fast computation power d . Biased data analysts e . Black box nature

IN MIPS assembly language Arrays Each labs worth 10 points All lab work must be initiated during the lab hour and be completed during the lab hour.Only when additional time is required, the student may show the lab instructor his uncompleted work during the lab, then complete the lab work in the following day for 2 points off. 1. Write a program

The plastic connector we usually use with the twisted - pair cables to connect our computers to the Internet is: Select one: None of the mentioned choices is correct RJ - 4 5 RJ - 1 1 RG - 4 5 RG - 5 9

The Regulators and the Tenant Uprising demonstrate that not all the frustrations in colonial America were aimed at the crown. How do they show this?

Consider the mathematical machine shown to the right. ( a ) If the input is 2 , what is the output? ( b ) What is the relationship between the output and the input using variables? ( a ) If the input is 2 , the output is ( Type an integer or a decimal. )

Which type of security addresses the protection of all communications media, technology, and content? Group of answer choices Communications None of these answers are correct. Physical Network Information

Given the network 1 0 . 0 . 0 . 0 / 1 6 , write down one address that is inside the same network, and another that is outside of this network. How many hosts could fit inside this network?

For each logical argument, select all the truth assignments for the propositional variables that show the logical argument is invalid. 1) 2) pvqpqpqA(svr)rvs

The process of using computers to identify hidden patterns and to build models using large datasets is calledO a . ETLO b . data visualizationO c . ad hoc reportingO d . OLAPOe. data mining

You are to write an ARM assembly program that uses the Sieve of Eratosthenes (er-uh-tos-thuh-neez) algorithm to calculate all prime numbers less than or equal to N, where N is a named constant. A good description of the algorithm can be found at http://www.geeksforgeeks.org/sieve-of-eratosthenes/. The program below is a C++ version of the

1 6 . ( 1 pt ) Why is the table on the previous page considered to be unnormalized ? a ) There are multiple items in a field. b ) Duplicate records exist. c ) There is no primary key field for the table. d ) Only a ) and b ) are correct answers. e ) Answers a ) , b ) and c ) are all correct. The first step in normalizing the table on the previous

CS 1083 : Print Text Patterns The Patterns Class Tasks Write a program that prints Project 1 written by YOURNAME and calls two methods: Print a triangle pattern described below. This method should ask the user for the width of the pattern, and then print the corresponding pattern. The user should also specify the number of rows and columns in the

Fill in the blank: Data analysts use a q , approach in order to identify, describe, and work out challenges or issues. problem - oriented detail - oriented big - picture strategic

What file is used to limit clients mounts when using NFS ? Question 3 Answer a . / etc / fstab b . / etc / nfsmount c . / etc / services d . / etc / exports e . / etc / nfs

The largest number that an ARM register can have is OXFFFFFFF OXFFFFFF OXFFFF OXFFFFFFFF

What will be the value inside the variables a and b after the given set of assignments? Inta=16dintb=7ia=(a+b)/21b=aia+1p Write only the value of ' +in the first blank and only the value of 'b' in the aecond blank. Page 3 af 29

Which of the following loops ( if any), display the numbers -2 through 2 (inclusive)? Assume that Console.Write() outputs infoemation to a console window without a newline character. Console Write ((2i+1)+" " ) D for (int i=6;i

Midsize and large companies have complex IT infrastructures and many systems, each with its own set of users. Identity management software automates the process of keeping track of all these users and their system privileges, assigning each user a unique digital identity for accessing each system. It also includes tools for authenticating users,

Which of the following is an example of spatial locality? A program accessing instructions in a loop. A program accessing data from an array in a sequential manner. A program accessing the same memory location multiple times. A program accessing memory locations at random.

why are these wrong? and how can i get rhe correct answer with explanation please Given the following declaration: int[values={{4,69,30,63},{23,94,41,49},{73,36,84,98} Evaluate the following expression: Question 11 0/5pts Given the following declaration: Evaluate the following expression

For discussions in this course, the following criteria must be used- Your initial post should be a minimum of at least two fully-formed, well-thought-out scholarly paragraphs (blocks of code examples and graphics are considered additional information beyond the two required paragraphs but are encouraged when appropriate). Describe at least two

- Differentiate TPS/OLTP/OLAP - goal of each? Example of each? - Different type of TPS? What are they used for? Purpose? - Database versus Data Warehouse - goal of each? Example of each? - What is BI ? Components of BI ? - What types/category of data/system does it use? Database? DW? Systems - TSP? MIS? Legacy? EIS? DSS? - Why using BI - goal of

When refferring to wireless security, we normally have to combine two words. The first one refers to the method of access, level of encryption, and security protocol for daya transfer ( WPS , WEP, WPA, WPA 2 , or WPA 3 ) . The second one refers to the way users authenticate in the wireless network. ( Personal or Enterprise ) . , While personal

Member Insertion By Position Modify the list class you created in the previous programming challenges by adding a member function for inserting a new item at a specified position: void insert ( double x , int pos ) ; A position of 0 means that x will become the first item on the list, a position of 1 means that x will become the second item on the

Write a program that simulates checking out at a grocery store. Your program should prompt the user for the number of items to be entered, and then continuously ask the user to input the item prices. The user will keep entering prices while it has not reached the number of items and the total is less than 50. Your program should then print out the

This code is executed using Python Tutor: \[ \begin{array}{l} \text { def add_one }(x) \text { : } \\ x=x+1 \\ \text { return } x \\ x= 0 \\ y= \text { add_one }(3) \end{array} \] How many variables named x and y appear in the memory model just before the return statement is executed? One variable named x and one variable named y. Two variables

can you solve this using two static generic methods 2 Assume the following tester code (see Figure 1) is in the main class that produces the output shown in Figure 2 below. Provide two static generic methods that are called by the main method shown below: .isMin.) generic method that takes an object value and an array of objects: the method checks

Calculate the error for this example training record; the actual output y is 2 3 . Inputs Input Output Output Layer Layer

Chapter 6 - Sequential Logic Structure Name: Matric ID: Name: Matric ID: Write a solution for the Magic Blender Company. The solution prompts the user for name, street address, city, sate, zip code, and quantity of blenders ordered at RM 1 4 0 . 0 0 each. Refer to the following details, display all the input data as well as the following: Amount

Paintings that consist of three painted panels, such as The Annunciation ( The M rode Altarpiece ) by Robert Campin and his workshop of artists, are called frescos. diptychs. triptychs. reliquaries.

3.16. (a) Consider x = -1:1/3:1 interpgui(1-x.-2) Which, if any, of the four interpolants linear, spline, pchip, and polynomial are the same? Why? (b) Same questions for interpgui(1-x.-4)

What must be tested for before performing FP division? Fraction overflow. Divide by zero. Exponent underflow. Normalization of the fraction.

Help on programming in python please. Project 7-1: Pig Dice Rules Create a program that reads a list of rules from a file and displays them. Console Pig Dice Rules: See how many turns it takes you to get to 20 Turn ends when player rolls a 1 or chooses to hold If you roll a 1, you lose all points earned during the turn. If you hold, you save all

,

1 0 . 1 4 Compare Java final methods with C + + nonvirtual methods. How are they the same? How are they different?

9 Declare a constant variable to represent State Sales Tax Rate. Use the proper C\# intrinsic/primitive data type and naming conventions for constants. (5 points) 43 Write a program that writes the words "Hello World!" as output to the command line (like we have done in class). Make sure it stops to allow the output to be seen before the program

,,,

which is not a responsibility of the product owner role? a . participate in the planning meeting. b . manage the product economics c . regression test the product when closing a story d . define acceptance criteria and verify that its been met

Which of the following is a best practice area for the Performance Efficiency pillar of the AWS Well Architected Framework? Matching supply and demand Data Protection Selection Change Management

Which of the following is NOT built up on Al technique:O a . expert systemsO b . neural networksO c . deep learningO d . Apple SiriO e . wiki

FundScreen has two methods that you are to modify: keep and exclude . Your mission is to complete these methods using only calls to ArrayLists removeIf method. Information on removeIf is in the ArrayList description. Google oracle java 8 api ArrayList to find Oracles official documentation for ArrayList . Locations for calls to removeIf are noted

What contains instructions for the OS for hardware devices, such as the keyboard, mouse, and video card? Group of answer choices Ntoskrnl.exe Device drivers Pagefile.sys Hal.dll

What is the main issue of Al nature that affects the ML - based decisions' transparency? a . Cheap computation power b . Biased dataset c . Biased data analysts d . Black box nature e . Fast computation power

Q1 & Q2 1) What is "security by obscurity" and why is it a bad practice? 2) Access Control Models: a) Describe one drawback of the Access Control List-based model b) Describe one drawback of the Capability-based model

Using the predicate symbols shown and appropriate quanti ers , write each English language statement asa predicate wff . ( The domain is the whole world. ) B ( x ) :x is a beeF ( x ) : x is a owerL ( x , y ) : x loves ya . All bees love all owers . d . Every bee hates only owers . b . Some bees love all owers . e . Only bees love owers . c . All

look at this MyList class implementation and then solve the task. MyList class: class MyList: '''A list interface. Also implements Iterator functions in order to support iteration over this list. ''' def __init__(self, size: int, value=None) -> None: """Creates a list of the given size, optionally intializing elements to value. The list is static.

Problem 1 0 : Recurrences [ a ] Use the Master Theorem to determine the order of magnitude of T ( n ) = 8 T ( n / 2 ) + n for n > 1 , where T ( 1 ) = 1 . [ b ] State the characteristic equation of the recurrence S ( n ) = 9 S ( n - 1 ) - 8 S ( n - 2 ) for n > 1 , where S ( 0 ) = 6 and S ( 1 ) = 7 . [ c ] Using the methods of our course, derive a

We want our program to start another program in a child process and wait for it to terminate before proceeding. Of the functions below, which is NOT necessary? We want our program to start another program in a child process and wait for it to terminate before proceeding. Of the functions below, which is NOT necessary? execl ( ) fork ( ) pipe ( )

What does a hard disk connected to a computer via a USB port describe? A . Network printer sharing B . Network attached storage C . Direct attached storage D . Cloud - based storage

Question 8 ( 2 points ) Saved 9 Which of the following are web application containment methods? Source Code Review & Fuzz Testing WAF & SIEM RFI & LFI 1 5 Whitelisting & Blacklisting View hint for Question 8

Calculator java program I need help in this method to read negative values such as ( 1 - 4 ) + ( 3 + -9 ) * 5 = -6.0 public static double evalInfix(String s) { valStack = new Stack (); opStack = new Stack (); char[] tokens = s.toCharArray(); for (int i = 0; i < tokens.length; i++) { // Current token is a whitespace, skip it if (tokens[i] == ' ')

Which of the following are ethical concerns for robots with artificial intelligence? Select all that apply.

Write a C + + Program to investigate the Basic Data Types in C + + . Declare a variable of type int, double, char and bool and assign a value to each of the variables. Determine the address of each variable using the & operator and the memory requirement using the sizeof keyword. Use the following bit of code as an example for type int data.

Which acronym refers to the file system that was introduced when Microsoft created Windows NT and that remains the main file system in Windows 1 0 ? Group of answer choices HPFS FAT 3 2 VFAT NTFS

Mary is encrypting a file to John who will later read its content. Mary is using AES for encryption. What information will John need in order to decrypt the file? The hash value of the file John's public key The key that Mary used to encrypt the file Mary's public key

In many cases, the vertex connectivity k ( G ) equals the smallest vertex degree in the graph ( the graph can be disconnected by removing all neighbors of the vertex with the smallest degree ) . Show that this is not always true, by finding a graph G in which k ( G ) is different from the smallest vertex degree in G .

Which formula below correctly calculates the total revenue for Soloist and Xtreme combined? 1 2 ItemRevenue 3 Soloist 2 , 5 6 0 4 Xtreme 1 , 2 5 0 5 Average 1 , 9 0 5 = SUMIF ( B 3 :B 5 , B 5 , C 3 :C 5 ) = SUM ( C 3 : 5 ) = SUMIFS ( C 3 :C 4 , B 3 :B 4 , B 3 , B 3 :B 4 , B 4 )

Below is a slightly different block of code including branch and jump instructions. beq $t 1 , $zero, ERROR lw $t 2 , 0 ( $t 1 ) add $t 3 , $zero, $zero j END ERROR: addi $t 3 , $zero - 1 END: addi $t 0 , $t 0 , 4

Assume a computer which has a cache with following parameters: 8 9 . 3 % hit rate, a hit time of 1 . 2 cycles, a miss penalty of 9 2 . 7 cycles, and the Ideal CPI = the hit time. For a program with 4 5 . 7 % Loads / Store instructions, what is the value of the CPI of this program? 1 0 8 . 1 6 1 0 . 9 9 9 2 . 8 3 8 3 . 9 8 5 . 7 3 2 . 0 7 1 5 . 6 5

The European General Data Protection Regulation was created to ? a . provide guidelines for email phishing b . establishing procedure for firewall configuration c . standardize encryption programs d . Implementing AI rules e . provide data protection for Internet users

1. Consider the NFA defined by the state diagram below. Follow the algorithm seen in class and in our textbook to construct an equivalent DFA. Please only include the states reachable (in one or more transitions) from the start state. 1. Consider the NFA defined by the state diagram below. Follow the algorithm seen in class and in our textbook to

If we had a choice, should we pass a variable into a function by pointer or by reference? Why? Why not? Edit View Insert Format Tools Table

Internet of Things ( IoT ) ' s major principle is to recognize the nature of object and to sense the behavior of the object so that proper functioning is guaranteed. The fifth generation networks will provide much support to society in different applications. Which one is NOT an IoT application? Question 1 Answer Agriculture Home monitoring

Which of the following statements about forms is wrong? Question 1 0 Select one: a . Electronic forms are relatively new in comparison and they essentially serve the same purpose as paper forms. b . Digital forms offer you the options and capabilities to provide richer user experiences, such as with incorporating sophisticated validation logic for

Which statement accurately describes the relationship among platforms, software, and apps? Platforms and applications are types of software. Applications are software that run on a platform. Platforms and applications are types of hardware used to run software. Software is a platform that runs applications. lanka just began an entry-level position

,,,

1. Create a flow chart to do the following, using MATLAB syntax in all blocks: Accept a value of a positive integer, n Calculate and then return the product of the odd integers from I to n (or from 1 to n-1 if n is even) Include error checking to display an error if the user inputs 0 or a negative number

Create a webpage with the terms and definitions using the HTML definition list element. What is DOCTYPE statement? How do you use:

Problem 2 ] Design an FSM that recognizes 1 1 0 1 or 1 1 1 0 . Draw state transition diagram ( use as few states as possible ) . Choose state encodings. Write state transition and output table using the encodings. Write next state equations and output equations.

True or False? Short Term Memory is a memory mechanism that can hold a limited amount of information for about 2 0 - 3 0 seconds. True False

MindTap for Andrews / Dark / West ' s CompTIA A + Guide 1 6 ecrankai 3 upport to IT Technical Support, 1 term Instant Access

now assume that a and b both can take on only the values true and false a true, false, and b true, false you are given the following quantities pa = true = 1 / 2

Markov vs Feedforward 1 3 points ( graded ) What are some advantages of the feedforward NN as described in the lecture versus Markov models? ( Choose all that apply. ) They contain a fewer number of parameters We can easily control the complexity of feedforward NN by introducing hidden layers They are able to encode more complex transition

1. Define a function MY-SUBLIST that takes two proper lists of atoms L1 and L2 and returns T only if L1 is a sublist of L2. Use EQ to test for equality of corresponding elements. Testing input: (MY-SUBLIST '(1 2 3) '(1 2 3 4 5)) T (MY-SUBLIST '(3 4 5) '(1 2 3 4 5)) T (MY-SUBLIST '(C D) '(A B C D E)) T (MY-SUBLIST '(3 4) '(1 2 3 5 6)) NIL

= {a,b}: Consider the following languages over the alphabet A= {(ab)" | n > 0} B= {a b | n >0} C = {a" a" | n >0} D= {aym | n > m} For each of these languages, answer if it is regular or not. Then, prove it either by creating an DFA/NFA/RE or by using the pumping lemma. Make sure your proofs are clear, understandable, and legible. Include full

Write an anonymous PL/SQL block that takes the contents of a text variable (e.g. VARCHAR2) and performs the following modifications to it: 1) Remove all characters that are not a letter (e.g. A-Z or a-z) abcd123efg-^%. would be converted to abcdefg 2) Reverse the order of the remaining characters abcdefg would be converted to gfedcba 3) Capitalize

Draw the logic diagram of a 4 - bit universal shift register with four D flipflops and four 4 : 1 line multiplexers with mode selection inputs S 1 and S 0 . The register operates according to the following function table

JAVA: Create a substitution cypher class Create a class that has two String arrays as instance variables. The first array will hold the alphabet, one letter per cell. The second array will also hold the alphabet, but in some other order: reversed, random, whatever you want. Create two methods the first one takes a one-word String and converts it

Explain how these solr commands sort the list of ids below. Please be detailed! facetQuery={!key=notreturnedskus}({!ex=sku_q,collapsefq v=\$qq}) OR ({!terms f=id separator="," v=/$elevate}) fieldList=isMatch:exists(query({!v=%24qq})) qq.solrQuery={!edismax qf=%24qf mm=%24mm v=%24search} solrQuery=({!edismax mm=0 qf=id pf=0 pf2=0 tag=sku_q

Which two of the following statements are true? ( Select two. ) Maps can have several layers: You can display different dimensions in each layer. Qlik Sense uses a third - party extension to plot maps in an app. Maps can only have one dimension: The dimension defines an area layer or a point layer. A map can be color - coded based on a measure or

Exercise 6 Given the following functions. f ( n ) = 1 + 2 - n + 3 - n + 4 g ( n ) = ( 1 + n ) - ( 2 + n ) - 3 - n h ( n ) = ( 1 7 + n 2 ) - l o g 3 ( n ) k ( n ) = 4 2 + n 2 + ( 1 + n ) - ( 2 - n ) Which of the following statements are true or false? Give brief reasons for your answer ( 1 sentence for each ) . ginO ( f ) ginO ( f ) - O ( f ) ginO

In what ways were the movie studios, actors, directors, musicians and the movie theaters negatively affected by the use of sound in movies?

Create a flowchart and pseudocode of that. Using the Factorial program from the textbook, or one of your own creation, create a program that inputs a value from the user then displays the list of factors as well as the result on a single line. For example: Python 3.9.0 Shell File Edit Shell Debug Options Window Help Python 3.9.0

code is in matlab QUESTION 1 A 5 x 5 matrix named Full55 is defined as: Full55 = 11 8 8 5 3 2 1 570; 0 573 8: 8 7 5 28:7 3 1 2 61: A 3 x 3 sub-matrix called Sub33 is to be extracted from Full55 using the nested looping structure below: for row = 1:3 for col = 4:8 Sub33[A.B] = Ful155[C.D]: end: end; If the matrix Sub33 ends up being [7385 29;126],

Problem: An Internet Service Provider (ISP) must, as part of its service to customers, provide a Domain Name Server (DNS). A DNS is a server that maintains a database of domain names, such as www.griffith.edu.au, and their corresponding Internet Protocol Addresses (IPA), such as 132.234.243.22. A domain name has only one IPA, but an IPA may have

i need f-k blem 2) [Python] The MNIST dataset is divided into training and test sets. Each set comprises ries of images (2828-pixel images of handwritten digits) and their respective labels (values n 0 - 9, representing which digit the image corresponds to). a) Use mnist function in keras.datasets to load and split the MNIST dataset into the