S
  1. study help
  2. subject categories
  3. computer science
  4. databases
  5. september 2018
  6. 13

Databases Questions and Answers September 13, 2018

Expert-verified solutions to help you succeed

Original Source Material Student Version Participant motivation to engage in these activities can also be enhanced by providing students with an opportunity to help generate the solutions to tactical problems that exist within net / wall games and have input into game creation. The principles provide a framework of tactical solutions that range
image text in transcribed

The state of the queues on each input of a router is presentod in the figure below. Packeta in cuueues ans divided so that each sub - queue contains packets to different outputs, and the rod color denctes a parlot in a queuc. Schedule packets for transmission so that four packets can be sent simbltaneously Slame the algorithm you will use and show
image text in transcribed

Write a program that allows the user to specify a filename on the command line. If the filename is not specified, the program prompts the user for the filename. The program then prints the number of characters, words, and lines in that file. Example: Enter Filename: BabyNames.txt BabyNames.txt 2498 500 101 I NEED A TESTER FILE, AND IT CAN NOT....

Algorithms wors when A . You have a formula B . Nothing else will C . You can specify the problem precisly D . Non of the above are correct

Describe cryptocurrency and briefly explain the technology that supports cryptocurrency.

Which of the following answer options is not an example of a front end activity? Multiple Choice user experience ( UX ) IT infrastructure online shopping cart customer support
image text in transcribed

Where are encrypted passwords stored in a Linux system?

use python def extract_month(bday: str) -> int: Given a string representing a date in the format DD-MM-YYYY, return the month within the string as an int. >>>> extract_month('02-08-1991') 8 >>> extract_month('22-12-1995') 12
image text in transcribed

3. Given the following sets: A = {a, b, c); B = {a, b); C-{d, e, f} U={a, b, c, d, e, f, g, h} USE SET NOTATION TO ANSWER THE FOLLOWING QUESTIONS. SHOW YOUR WORK! a. List the elements in the set A U B b. List the elements in the set Bn (A U C) c. List all possible subsets of A . d. Are A and C disjoint? Explain why or why not. e. Is B a subset of
image text in transcribed

Furthermore, how could manipulating and calculating data using formulas contribute to gaining insights and making informed decisions based on the dataset?

4 h 2 0 m q , leit Task 2 : host _ avg complete the following opertions in the host _ avg funtion. The following are the parameters : ALL input _ file : input _ path ( final ( i ) dataframe of space _ logs function ) Now, Find the average of time for each host. 1 Then rename it as avg _ time. In the challenge file, the return statement is already
image text in transcribed

XYZ Software Solutions is a well - established software development company specializing in enterprise - level applications progressed. This resulted in frustration among stakeholders and a perceived lack of responsiveness from the development team. Recognizing the need to adapt to a more dynamic approach, Software Solutions has decided explore

You are a computer programmer who feels short - changed by your organization. To get back at them, you would most likely use a Trojan horse, back door, or logic bomb. Group of answer choices True False

Imagine that you have the following program def foobar(x): X+5 x=5 foobar(x) # what is the value of x at this line? What will the value of 'x' be on the line marked with a comment
image text in transcribed

SQL , Structured Query Language, is a standard language for storing, manipulating and retrieving data in databases. MS Access creates SQL statements for you, as you create your Access objects. When a colleague opens your Access database file, they are accepting the SQL statements to run when they open your database objects ( table , form, query,
image text in transcribed

Modules can be imported with " as " to allow programmers to use a more convenient name when calling their functions. True False
image text in transcribed

Using a suitable form of Mathematical Induction to prove that 3"
image text in transcribed

Can you help with building a C + + program for file comparison. That can be efficient and work with large files. requirements: 1 . the program should open two files that can ignore line breaks 2 . the program should run through the files and identify difrences or if same 3 . the program should print out the line and column for location purposes 4

Which of the following protocols might he implement to ensure that Kerberos will work correctly? a . STP b . FTP c . NTP d . HTTPS

3. Does UDP require a mechanism to estimate the RTT between sender and receiver? Briefly explain your answer.

Effects on lessons are likely to experience a lack of understanding of what is being taught and line problems as well as will cause negligence/ disruption by the learning environment from home. (MORE THAN 3000 WORDS)

I need help with this MySQL Google drive link to sql file https://drive.google.com/file/d/1_uFpzDhQzkXEKehz6zqlyHITHU6UngN8/view?usp=drivesdk stores Column Name decimali. Column Name Condereed Type Column Name Conderced Type Column Name llow Nulls dentty Condamed Type Condersed Type ttie.ld Column Name Column Name Condensed Type Use a WHERE clause
image text in transcribedimage text in transcribed

and 1. Each recursive call to a method creates new a. global variables, methods b. parameters, classes c. local variables, classes d. local variables, parameters 2. In a linked list, you must have: a. Head and tail pointers b. Head and tail and current pointers c. Tail d. pointer e. Head pointer 3. Which of the following data structures is most
image text in transcribedimage text in transcribedimage text in transcribed

(3) The Maclaurin series expansion for the cosine is cos(1) - Use MATLAB to create a plot of the cosine (solid line) along with a plot of the series expansion (black dashed line) up to and including the term Use the built-in function (factorial) in computing the series expansion. Make the range of the abscissa from x = 0 to 3m/2
image text in transcribed

which of the following is a format in which data can appear

Please solve 2. Define the following functions: a. (pad x ) returns the list x in which each zero element is replaced by the previous non-zero element in the list. Any leading zeros will remain unchanged. Example: (pad ' (01004002) ) returns the list ( 01 b. (aprog x ) returns True if list x is an arithmetic progression and False otherwise first)
image text in transcribed

Write ChekingAccount.h ,ChekingAccount.cpp to get the following output (rest of the files are given) CheckingAccount Derived class CheckingAccount that inherits from base class Account and include an additional data member of type double that represents the fee charged per transaction (transactionFee). Write Checking- Accounts constructor that

Question 9 1 pts Look at the class declaration below and write in code needed to declare a destructor for the given class. class Album { public: string title; Album ( ) ; } ; ; / / Fill in the name of this destructor.
image text in transcribed

(Extra Credit - 10 pts) A binary search tree is a binary tree for which the value in each node is greater than or equal to all values in its left subtree, and less than all values in its right subtree. The binary tree given as example in problem 3 also qualifies as a binary search tree. Using the same list representation, write a recursive
image text in transcribed

This assignment is about simulating a bingo game. Create a 2D array that will be your bingo card. The bingo card will ONLY be 5x5. Make sure your random numbers are truly random between program runs. Use srand() only once and not in a function or loop. Create a function to fill the bingo card with random numbers in the proper ranges. Pass your 2D

hey can i have a working example of this program in c++ I tried it couldn't get it right Exercise P1214. Write a class Polynomial that stores a polynomial such as p(x) = 5x10 + 9x7-x-10 as a linked list of terms. A term contains the coefficient and the power of x. For example, you would store p(z) as (5,10),(9,7),(-1,1),(?10,0) Supply member
image text in transcribed

New Top Level Domains ( TLDs ) are coordinated by Question 5 options: A ) ICANN B ) no one, because anyone can add a TLD to the Domain Name System C ) W 3 C D ) TCP

AlAll of the following are functions of the DBMS except

------------------------------------------------ import static java.lang.Math.abs; /** create a class called BankAccount */ abstract class BankAccount { private double balance; private Customer accountHolder; /** this constructor will be invoked when no argument given @param none no argument @return nothing */ public BankAccount() { } /** when
image text in transcribed

Fill in the blanks so that your loop prints every integer from 1 to 10 inclusive. for (int i = ; i

How do you invoke the virtual terminal in UNIX/Linux?

Which security mechanism uses a unique list that meets the following specifications: The list is embedded directly in the object itself. The list defines which subjects have access to certain objects. The list specifies the level or type of access allowed to certain objects. answer Hashing User ACL Conditional access Mandatory access control

An analyst creates a computer system that reads the information presented in a set of prospective employees LinkedIn profiles and then uses that information to recommend a list of ten individuals to interview for the analyst to select and interview. What type of analytics is the analyst performing?

Software Testing 3. Justify whether you agree or disagree with the following: Quality Objectives (factors) may contradict with one another. Give an example
image text in transcribed

1 int binarySearch ( int arr [ ] , int 1 , int r , int x ) 2 { 3 if ( r 1 ) { int mid = 1 + r - 1 2 ; if ( a r r [ m i d ] = = x ) return mid; if mid
image text in transcribed

Suppose a new instruction was inserted as follows: z = x + y Add 1 to z ( new instruction ) Put z to output What would the last instruction output to the screen? Show answer
image text in transcribed

d = 0 . 0 0 5 m m d = 0 . 0 0 3 2 6 7 m m d = m m Height h = , m m h = m m h = , m m m m Ring diameters D 1 , D 2 = m m D 1 = D 2 = 0 . 0 3 2 6 7 m m D 1 = D 2 = longrightarrowmm Time without ring t 0 = L 2 . 0 0 5 2 2 s s t = 0 . 0 1 2 3 4 s t s = 0 . 0 1 2 s t = 0 . 0 0 0 5 t = 0 . 0 0 0 3 2 6 7 s t 0 = 0 s Time with ring t r i n g = , | s
image text in transcribed

CAN-SPAM act 2003 ( Controlling the Assault of Non-Solicited Pornography and Mketing) Why is it criticized ? Social issues and computing ethic.

Match the definitions with appropriate Cost / Effort Estimation Methods. I.One or more experts in both software development and the application domain use their experience to predict software costs. Process iterates until some consensus is reached. II . In this method, "work expands to fill the available volume", the cost is determined ( not

To decompress, or pull out, files from a compressed form is called:
image text in transcribed

Explain how we can use NoSQL databases In storing large amounts of Data (300 words) (without plagiarizing please :) Thank you

L 29 3 29 Vcos(x) sin (.x) dx x 23
image text in transcribed

1. (12%) Suppose array u is used to store all values starting from 0.0 to 100.0 with an increment of 0.5 a) Using a single Octave statement to create u. b) How many elements are stored in u? c) What Octave method can be used to obtain the size of u
image text in transcribed

C programming Problem 6: Given two matrices (2D arrays) A and B write a program to check whether A and B are mirror matrices of each other. That is: If A = 1 0 0 and B=10 0 0 1 1 0 0 1 0 0 0 1 0 These are mirror matrices so the code should print Both are mirror matrices of each other Otherwise it should print "Both are not mirror matrices of each
image text in transcribed

On what basis can the number of IPoE sessions be limited on a BNG router? 1 . Per dynamic template 2 . Per VLAN. ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! 3 . Per control policy 4 . Per subscriber
image text in transcribed

For each of the following problems: Write the relational algebra expression Write the expression in the form of a query tree 3. Find the names of employees that are directly supervised by 'Franklin Wong'. EMPLOYEE Sex Salary Super san Dno Fname MinitLname John B Smith 123456789 1965-01-09 731 Fondren, Houston, TX M 30000 333445 Franklin TWong
image text in transcribed

Are information systems professionals who help bridge the relationships between technical

I am suppose to hand in 2 different methods on a project but i have tried really haerd to change this code but i cant- can sombody help me? #Code to copy import string # (1) Type in the document def open_file_stream(): try: # Allows the user to type in a document name filename = input("Document collection: ") #filename =
image text in transcribedimage text in transcribedimage text in transcribed

Java Assume that a CheckingAccount class has a method named "withdraw" that takes a double representing the amount of money to be withdrawn from the account. The method throws a custom exception named OverdrawnException if the amount to be withdrawn is greater than the account balance. Write a complete method header (without any braces) for a
image text in transcribed

Consider a two-level cache. In 1000 memory references, there are 50 misses in the first level and 10 misses in the second level. What are the local rate for L1 and L2? What is the global miss rate? Assume the hit time of L1 is 1 cycle, the hit time of the L2 cache is 10 clock cycles, the miss penalty from the L2 cache to memory is 500 cycles, and

This project should introduce the student to penetration testing phases and how these phases are practically applied using virtual machene Uvjectives Gain clear understanding of the nature of penetration testing Acquire knowledge about penetration testing phases and the tasks accomplished in each phase Practice network penetration testing. . .
image text in transcribedimage text in transcribed

C PROGRAMMING ONLY 3 String Search Develop a C program that searches a file for a given string. Your program should . Ask the user to enter the fle to bq searched. - Ask the user to enter the target string. The string can be longer than one word, but no longer than a line. - Locate the target string in the file. Your program should be able to
image text in transcribedimage text in transcribed

Error guessing is a white box testing technique. Group of answer choices True False

Which objects can be created in a domain using ADUC? Select all that apply: Users Organizational Units Divisions Groups Group Policies Shared Folders

Apply the formal definition of Big-O notation to prove each of the following upper bounds. Remember to be clear and specific about your choices for the constants c and n 0 that will make your solution work. 3A Prove that f(n) = n^3 + 20n + 1 is O(n^3) 3B Prove that f( n ) = n^ 2 + 2 n + 1 is O ( n^ 2 )

Question 5: Converting Back and Forth Show every step of your computation for the following conversions: a) Convert the decimal number 2885 into its hexadecimal expansion. b) Convert the binary number (1101100)2 into its decimal expansion. c) Convert the octal number (7435)8 into its hexadecimal expansion. d) Convert the hexadecimal number

( -10)^3+(-9)^3+(-8)^3 +(-7)^3+(-6)^3+(-5)^3+(-4)^3 + (-3)^3+(-2)^3 +(-1)^3 =? Write c++ code to calculate the given sum.

Question 5 (5 points) Assume char(100 x-new char[14][5][16]. what are xlength, x{2.length, and x[0] Tojlength O A 12,5, and 15 OB) 13,5, and 16 C) 13, 5, and 15 OD) 14, 5, and 16 Question 6 (5 points) What is the printout of the following program? public class Test public static void main(String[] args) { int[11values - 13,4,5. 11. (33, 6, 1, 21
image text in transcribed

Problem 3: Give the asymptotic values of the following functions. using the A-notation: (a) (x + 501 - 10) (4n) - (b) 3 2nvn + 1/(log n) (e) in log n + In log n = 1524 (d) 1505 + 12.20 te) m2. ()" + w? Justify your answOTSAI
image text in transcribed

12. Dean wants a quick way to look up staff members by their Staff ID. In cell Q3, nest the existing VLOOKUP function in an IFERROR function. If the VLOOKUP function returns an error result, the text Invalid Staff ID should be displayed by the formula. (Hint: You can test that this formula is working by changing the value in cell Q2 to 0, but

What is the bandwidth recommended to have a file share?Select one. a . 1 0 gig b . 1 gig c . 6 gigd. 2 gig

1. In single batch systems, the following hardware components are needed: Memory Protection Privileged Instructions Timer Interrupt Explain the function of each hardware component.

The difference between a hub and a switch is that: switches forward fewer frames overall hubs consume more of the wire's inherent bandwidth switches are more network-aware all of the above
image text in transcribed

(TCO 2) Of the six steps of requirements engineering, which relates to refining the requirements model as it relates to the software system?

What is the primary purpose of Google Colab? To develop web applications in RStudio To create, run, and share Python code for data analytics To install Python packages onto your local machine's hard drive To create and manage Google accounts
image text in transcribed

what answer for question 3 ? Question 1: write search queries to find the following information in Google and include screenshot for your search (you need to use the search commands to limit your search): a. Search for webpages that include "cybersecurity" in Saudi Vision 2030 website (www.vision2030.gov.sa) b. Display job opportunities for
image text in transcribed

Draw two principal component directions for each of the datasets shown below. Are the principal components parallel to the original axes for each of these datasets?
image text in transcribed

Need help with the following Java programming problems that go along with each other. Please add comments to each line if possible. (1) Write a class CuteCreature, such that each CuteCreature object has the following instance variables: Species - a string indicating the type of creature (such as Bowlbasore, Squaretell, or Peekashoe) Level a

By default HBase runs on _ _ _ _ _ _ _ _ _ mode Group of answer choices stand - alone pseudo - distributed fully - distributed There's no default choice

what is a forged or fake email sent by attackers to compromise the targets security?

( 1 0 points ) Consider the integration of the function f ( x ) = c o s ( x 2 ) over [ a , b ] = [ 0 , 1 ] . Use exactly five function evaluations and compare the results from the composite Trapezoidal rule and composite Simpson's rule. Take uniform step size h = 0 . 2 5 . Use four digits in your calculations.
image text in transcribed

How to make global variables visible in functions in their scope? Show an example for each method.

3. List the three essential features in Symmetric multiprocessing. 4. Explain the difference between a microkernel architecture and traditional layered architecture.

what phase of the business continuity plan specifies how and under what condition the organization moves its operations from the primary site to the alternate site ?

In which of the following Microsoft applications can you not insert pictures? PowerPoint Word Excel Access
image text in transcribed

kindly make presentation on phase modulation, minimum 7 numericals on phase modulation included

A successful cybersecurity approach has multiple layers of protection spread across the computers, networks, programs, or data that one intends to keep safe. True Falsc
image text in transcribed

1.(3pts) Give an example in which using c++s unary operator could be interpreted differently depending on the order of operations. 2.(3pts) Give an example of short circuit evaluation (in any language) 3.(3pts) Give an example of an overloaded operator (in any language) 4.(3pts) Give an example of explicit and implicit type casting (in any

The Cross Tab tool will: Pivot a dataset from a wide to tall format Pivot a dataset from a tall to wide format Move records from the bottom of the dataset to the top Export data to a new file
image text in transcribed

Name a scenario when you had to troubleshoot a network-related issue and walkthrough the steps of what you did to resolve it. Please be as detailed and specific as possible, while laying out the steps of what you did. Thank you.

A similar scenario: You have the same need as defined above where you would like to convert the positions of First Baseman, Second Baseman, Third Baseman, and Shortstop to be identified as just "Infielder." However, you know that the input csv file will be updated each season so you will have to repeat the data conversion process every season.

Use nested loop to create a multiplication table as shown below 1 2 3 4 5 2 4 6 8 1 0 3 6 9 1 2 1 5 4 8 1 2 1 6 2 0 5 1 0 1 5 2 0 2 5

The following relations keep track of airline flight information: Flights(flno: integer, from: string, to: string, distance: integer, departs: time, arrives: time, price: integer) Aircraft(aid: integer, aname: string, cruisingrange: integer) Certified(eid: integer, aid: integer) Employees(eid: integer, ename: string, salary: integer) Note that the

The stack pointer points to address 2A8C (16) . Show the content of the stack after the sequence of following instructions. Draw a map of the stack after every instruction and show where the stack pointer points to. a) PUSH {lr, r7, r0, r3} b) LDMIA sp!, {lr, r7}

The RSI register is how many bytes? (1, 2, 4, 8, 16 etc.) The "D" in the EDI register stands for what
image text in transcribed

Write a Java program/method that takes several HTML files as input and creates a dictionary using a binary search tree or BST. Using the BST as input, sort the entries in decreasing order of frequency. Find the 10 most and least frequent words and list them in decreasing order of frequency

"MPLABX IDE simulator required" Write a subroutine to divide two unsigned 16-bit numbers. Test your program in the MPLABX IDE simulator. Please provide a typed code for this lab.

Java Write a method that accepts one integer and returns that value raised to the fourth power. There are various components in a method . Clearly label these components using your written method.

Write a Java program that will Pick a Random Number Collect an (integer) guess from the user (use try and catch!) Be sure to verify that the input is legitimate!! Compare the guess to the random number Output if the guess is Too High!, Too Low!, Right! Repeat until the user gets the answer correct Once the user guesses the correct value, ask them

For the following PDA, consider the equivalent context-free grammar constructed. Show the parse tree corresponding to string abbbaa. 4 2
image text in transcribed

How could the marketing department at Zillow use a data mart to help with the release of a new product launch?

Which of the following is NOT true of an external agent? * 1 point A. Anything outside the system that interacts with the system (such as a person, unit, system or organization) B. It is also known as an external entity C. External agents can become processes D. Processes can become external agents E. External agents can access a data store

A. Pseudocode consisting of a logistic regression function and gradient descent function with brief comments clarifying different steps/components and big o notation. B.Code: R code based on pseudocode in 1, consisting of a logistic regression function and gradient descent function with brief comments clarifying different steps/components.

You are about to sign a contract with an ABC company for Penetration testing. The preliminary discussions are been completed with the senior management and you are discussing technical parameters with the Senior IT administrator to be included in the documentation as pre-engagement. [5 marks] Write 5 questions that you would ask to be included in

A multinational company is improving its data security strategy and asks an IT professional to apply different protective measures, ensuring that the data remains secure , whether stored, transferred, or processed. What concept is the IT professional primarily working with?

Showing 1 - 100 of 1499
  • 1 / 15