Databases Questions and Answers October 11, 2018

Which is a likely reason for a computer to fail to boot?Boot order set to bootable optical mediaSystem cannot boot from USB driveBoot order changed to a non - bootable deviceSystem set to boot from SSD

What are the three most important network-layer functions in a virtual-circuit network?

3. Use the Laws of propositional Logic to show that (p q) (p v q) is a tautology. Truth tables will get no credit

Create a cheat sheet with the main operators of Relational Algebra, the main ones from SQL, some information about the cardinality, participation and other useful facts for the ER diagrams and anything that you consider important about Normalization.

Please solve this! Computer science Python 3 import numpy as np x = np.array([[1,2,3,4,5], [6,7,8, 9, 10], [11,12, 13, 14, 15], [16,17, 18, 19, 20] ]) 1. Show how to convert the array to floating point numbers. 2. Show how to assign all the elements that are even (index 0, 2, 4, ) to 0 and then assign all the odd (index 1, 3, 5, ) elements to 1.

Let's begin with a discussion of programming and user environments with special focus on the programming development environments. What are the simplest? What are the more complex environments like? Give some examples of each.

Programming in C: Write a program that accepts an integer y as input and prints the value 10y as output. Use formatted I/O

How do private security professionals contribute to the nations homeland security posture, and what measures can the private sector take to enhance their organizational homeland security posture?

If the scene is not prosecutable and SFD takes over and we can assist with

Explain The use and implications of data types in computer hardware

I need help with this question. Please answer it in full sentences and neat for me to understand. Thank you. 1) - Describe a situation when a GREP search fails. What would you do if this happened to you? -

Which commonly used programming language is used to manage, access, and search for database content?

Define the matrix Qirj = -1+2 max{i, j}. Set up a vector b so that the solution of the system Ax = b is Xi = 1 for i = 1,...,n. Repeat the previous item for this system

1 . You must use at least one list comprehension in your phoney module ( but you may use more than one ) 2 . Your phoney module should include the type / code hinting that specifies the expected data type for your function arguments. 3 . Each function in your phoney module must also include a docstring that provides a brief overview of its

Construct the project activity network using Activity on Node method.

Provide a pseudocode algorithm that would find the sum of the three middle nodes in a doubly linked list of integers. You may assume that the linkedlist has an odd length

C programming ---> Write a program that accepts a floating-point value z as input and prints the value 100.z as output. Use formatted I/O

CS 2 IDS Answer ALL Questions Question 1 : ( 2 5 marks ) a . A master node is synchronising its clock with three slaves employing Berkeley's algorithm. The master's clock reads 1 4 : 2 6 : 4 4 when it sends the request, and three slaves' clocks read their current time 1 4 : 2 6 : 1 9 , 1 4 : 2 6 : 3 0 and 1 4 : 2 6 : 5 5 respectively, when they

Charlie Chaplin's most famous films were called ( ? ) and ( ? ) .

How much can you recover under Coverage forms A and B

Second Corinthians says that weakness or vulnerability is a mark of godly leadershi

( No language / platform restriction / python is the priority ) it is written in the project content which conditions must be fulfilled. the code must perform these functions. - if the database needs to be used, please explain how you used it , and how it will be used with with the code you wrote With a vision to enhance user experience and

Entry - level graphics cards draw their power from the

You have a table named TRADES with the following six columns: Column Name Data Type Description Date DATE The calendar date on which the trade took place. Firm VARCHAR(255) A symbol representing the Broker/Dealer who conducted the trade. Symbol VARCHAR(10) The security traded. Side VARCHAR(1) Denotes whether the trade was a buy (purchase) or a

What does Odysseus bring with him to investigate cyclops cave

1 1 : add $s 0 , $t 0 , $t 1 1 2 : sub $t 2 , $s 0 , $t 3 1 3 : add $t 0 , $so , $t 2 1 4 : lw $s 1 , 2 0 0 ( $ 0 ) 1 5 : add $t 1 , $t 2 , $s 1 1 6 : sub $s 2 , $t 3 , $s 3 you can perform the following Re - Ordering steps * move 1 5 after 1 3 move 1 5 before 1 2 move 1 3 before 1 4 move 1 6 before or after all other instructions the following

Write a function t_charcount that takes a string tree as input and counts the total number of characters that the values contain. This is the function's type: t_charcount : string tree -> int Example: t_charcount t3 gives 11. write a function t_concat that will concatenate together the values of a string tree. The function's type is here: t_concat

One important difference between the network layer and transport layer is:

The scope of an identifier that is declared inside a block this includes function parameters extends from the point of declaration to the end of the block

A syntax error detected by rhe parser

What is the difference between pirated and counterfeit software?

how does analytical language organize words and grammar

What is the correct chmod command to add write permissions for the group and remove read permissions for other ( everyone else ) ? Use the number method.

write A code in javJava logical calculator

What is the % of all plantings Verdejo is accounted for in DO Rueda

Write the following sentences mathematically using quantifier notation. Then negate each of the mathematical statements and move the symbol as far to the right as possible. There is one and only one real solution to the equation x3 + x + 1 = 0. For any two distinct real numbers, we can find a rational number in between them.

Research current developments in virtual reality or video games and report how they are extending the potential of multimedia The name of coursr multimedia

Negate each of the following mathematical statements and move the symbol as far to the right as possible. Then rewrite the negated statements in English. x Z,y Z, x > y x N, y N, (x^2 < y) (x < y)

the data you change a file is an example of an _ _ _ _ property

In this homework, you must implement your own graph data structure by taking inspiration from your textbook and use it to help to solve problem. You are not allowed to use any external library or . jar file. Any solutions without using trie data structure are not evaluated! In this homework, you are expected to implement Trie data structure and

Make a basic C code for a for loop with a while loop inside

1 . You must use at least one list comprehension in your phoney module ( but you may use more than one ) 2 . Your phoney module should include the type / code hinting that specifies the expected data type for your function arguments. 3 . Each function in your phoney module must also include a docstring that provides a brief overview of its

Scene schema is

Which three application layer protocols use TCP ? ( Choose three. ) SMTPFTPSNMPHTTPTFTPDHCP

based on the scenario given above, discuss the importance of data encryption, access controls and compliance with data protection regulations during the migration

Given n open intervals (a0,b0),(a1,b1),,(an1,bn1) on the real line (that is, each ai and bi is a real number), each representing the start and end times of some activity requiring the same resource, the task is to find the largest number of these intervals so that no two of them overlap. Prove that the earliest finish first algorithm always yields

what is virtual memory, and what are the disadvantages of it

Which class of computer includes servers, mainframes, and supercomputers?

Use Python Statement For the given integer X print 1 if it's positive, if it's negative, or if it's equal to zero. Try to use the cascade for it

2 . The ZIP code is to be typed with no space between it and the spelled - out state name. - True ot false

solution computer organization and design

2 . Identify the types of variables in the dataset. ( 1 0 )

Files on the network are stored in a file server. This is a _ _ _ _ .

Task 9 A sequence diagram for changeRoom(newRoom) use case in hotel system is presented as shown in the below given figure

Premise: Below is a snapshot of data from two tables: Orders and Customers, taken on 02/05/2016. You find the following documentation: The ORDERS table gets updated at the end of every day The CUSTOMERS table gets updated at the end of every week ORDERS Table Field Name Description ORDER_DT Date the order was placed. ORDER_ID A unique identifier

Programming in C: Write a program that accepts an integer and two floating-point values (All three in the same line and separated by a comma) and prints the sum of these values. Example: Input: 12,13.14,6.7; Output: 31.84. Use formatted I/O

What are the three main advantages of relational databases? ( 6 marks )

I need help with this question. Please answer it in full sentences and neat for me to understand. Thank you. 2) - Extract the significant concepts from the following change request: " The application allows the users to draw only two figures: circles and rectangles. Allows the user to draw triangles. "Justify yours answer. -

Use the pumping lemma to prove language Lc is not regular: L = {ap : p s prime, i.e. p = 2, 3, 5 . . . }

1 1 : add $s 0 , $t 0 , $t 1 1 2 : sub $ t 2 , $ s 0 , $ t 3 1 3 : add $ t 0 , $ s o , $ t 2 1 4 : Iw $s 1 , 2 0 0 ( $ 0 ) 1 5 : add $ t 1 , $ t 2 , $ s 1 1 6 : sub $s 2 , $t 3 , $s 3 you can perform the following Re - Ordering steps * move I 5 after I 3 move 1 5 before 1 2 move 1 3 before 1 4 move 1 6 before or after all other instructions the

The only allowable aggregate operations on int arrays are input and output

what does the new project folder at the OS level include

5 Points) Write the Boolean expression in Canonical sum-of-products and Canonical product-of- sum forms for the following truth table. 0 01

A visualization tool that shows work in progress to help identify bottlenecks and overcommitments, thereby allowing the team to optimize the workflow.

1 . You must use at least one list comprehension in your phoney module ( but you may use more than one ) 2 . Your phoney module should include the type / code hinting that specifies the expected data type for your function arguments. 3 . Each function in your phoney module must also include a docstring that provides a brief overview of its

Prove that for two machines M and N, M indistinguishable from N does not imply that M has the same behavior as N. Hint: one way to prove this is to exhibit two machines, a two state machine M and a three state machine N, both over X = {0,1} and Y= {0,1} with this property.

answer the following questions:: identify a clinical information system ,What is the function of this specific clinical information system; does it use internal data, external data, or both? What area do you think most data comes frominternal or external? Why?

WRITE USING C++ PLEASE Task For this project, you have been provided an implementation of the Huffman tree construction algorithm (DO NOT modify this code. It is possible to construct multiple Huffman trees with the same message if numerous characters in the message share the same frequency value. The construct function that I set up ensures that

( No language / platform restriction / python is the priority ) Develop a simple DSS that guides. - if the database needs to be used, please explain how you used it , and how it will be used with with the code you wrote With a vision to enhance user experience and optimize resource allocation, we embark on the development of a Decision Support

Project teams should document project results and information for future teams. Which of the following is the project management phase in which the teams perform this function

How can I use a binary tree and linked list concept for hotel reservation management system program on java? Any suggestions.

H W - 2 ( this is phython ) HW - 2 :Tensor Product ( Kronecker Product ) on i ) vector, vector ii ) vector , matrix iii ) matrix , matrix iv ) general: your program checks the two inputs and calculates accordingly Note: Each matrix representing the "density matrix" of a qubit, Tensor product represents the density matrix of the two - qubit system

True or False: An overloaded operator has more than one meaning.

List 5 common security threats for wireless LANs. Talk about how to mitigate the risks?ist 5 common security threats for wireless LANs. Talk about how to mitigate the risks?

Which operation is more efficient in a singly linked list compared to an arrayO a . Searching for an elementOb. Deleting an element at the beginningOc. Inserting an element at the endOd. Accessing an element by index

IN C + + , CAN YOU MAKE A MAIN.CPP , BST . CPP , AND DOLLAR.CPP FILES ALL SEPARATE AND WORK TOGETHER WITH NO HEADER FILES Follow all code styling and submission instructions as outlined for previous labs. Declare and implement a BSTNode ADT with a data attribute and two pointer attributes, one for the left child and the other for the right child.

A class diagram of hotel reservation system

Note that this is NOT a solution that allows calculation of a route between any two cities in the network. That solution will come in COMSC - 2 1 0 after the study of graphs and the Dijkstra algorithm. The COMSC - 2 0 0 solution is very specific to solving the shortest route between two preselected cities, in a network with no "dead - ends", no

Please!!!!! Objectives Input Data into a spreadsheet Execute a Data Forecast Forecasting is a way of predicting values in the future based on data. Managers wants data instantly in order to make decisions and they rely on techniques such as forecasting to make those decisions. With big data, volumes of data is produced instantaneously. This

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Let X = {a, b} and Y = {1, 2, none, both}. Construct a Mealy machine that outputs a 1 if the number of as in the input string (mod 4) is equal to 2, outputs a 2 if the number of bs in the input string (mod 3) is equal to 1, and outputs "both" if both conditions are true. If neither condition is true it outputs "none." If such a Mealy machine does

On the same physical device, _ _ _ _ sorts connections by broadcast domains into different groups.

what is a system architecture

3. When a web address in the email does not match the usual address of the site or login page of the business, it is very likely that the e-mail is from a phishing scam. A. True B. False

Identify the claim about the tree below that is true. The tree is balancef but it is not an AVl. The tree is a complete binary tree

need it looked at already worked it but want someone to help with some errors in my code Assignment 2 Problem Statement Develop car rental application may use to produce a receipt. A receipt will be formatted as follows: EZ - RIDER Rental Receipt Customer John Jones Driver License : PA 12343 Telephone : 724-555-8345 Credit Card : VISA 12345678012

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SQL # I: Write a query that returns the vendor name, the count of invoices for each vendor, and the sum of invoice total. Display the results for vendors with at least two invoices. Sort the results by invoice count descending. The text file for the data can be found at https://we.tl/t-uV0a9K2hso.

The link to download a document from a web page is:a . relativeb.absolutec . externald.internal

Occurs when the reader knows something important that the characters in the story don t know

An administrator needs to provide iSCSI storage to a VM on the Nutanix cluster running ESXi Which native Nutanix feature should be leveraged to meet this requirement?A . Acropolis Block serviceB. Acropolis file serviceC. Storage ContainerD. NFS whitelist

Make a complete C code for a for loop with a while loop inside

What is meant by the term principles of software engineering? Can a software engineer become a certified Professional Engineer (PE)? Explain

In this exercise, you need to write a Python function that will implement the reservoir sampling approach described in class. Your Python function should take three input arguments: name of the input file, sample size (n), and seed (random_state) for the random number generator. The function should return the sample data as a data frame object.

Solve the attached problems Problem 2 aby using Reptile Search algorithm.For each problem, you must follow the following steps: Step 1 : Try to find a best parameter set ( i . e . population size, iteration limit , etc. ) . Step 2 : By using the parameters obtained in step 1 , solve the problem for 2 5 times ( Note: Values of the objective

Iambic Pentameter format was composed in Shakespeares Blank Verse?

Let : X+ Y. Define the Nerode machine M for this . Prove that the transition function and output function of M are well defined. Is the machine reduced? If so prove it, else give a counterexample. What is the significant of the Myhill-Nerode theorem?

Prepare pseudocode for a program that lets a user continuously enter numbers until the number 99 is entered. Once the user has stopped entering numbers, display the number of numbers entered AND the sum of those numbers. You'll need a counter and an accumulator for this . Make sure your loop is structured Don't forget to comment your code. Don't

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ch 1 6 graphics java

Introduction to Cryptography 4. Compute without a calculator, show the paperwork: 651 mod 7. (113)1 mod 13. 7100 mod 19. Hint: compute the rst few powers of 7 mod 19 and observe the pattern. Use the baby-step giant-step method to nd x such that 5x = 11 mod 23

can also be a more direct process, with hackers setting up a phone free network, made to look like that of an official business. Users who log in to the spoofed network are subject to the same potential theft of data. occur if hackers are able to gain password access to if It can also a protected network.