Why would a company choose in-house software development?

How is the increased use of smartphones and tablets, with their smaller screen size, affecting user interface design practices?

Consider the foreign-key constraint from the dept name attribute of instructor to the department relation. Give examples of inserts and deletes to these relations that can cause a violation of the...

What trade-offs do write-optimized indices pose as compared to B+-tree indices?

Fill in the blanks below to complete the following Apache Spark program which computes the number of occurrences of each word in a file. For simplicity we assume that words only occur in lowercase,...

Design a database for an airline. The database must keep track of customers and their reservations, flights and their status, seat assignments on individual flights, and the schedule and routing of...

Does it make sense for FAME to use enterprise keys? If so, create the appropriate enterprise keys and revise the relational schema accordingly.

When using the UML to describe a single system, most designers would use __________ . a. A single type of diagram b. At least three types of diagrams c. Most of the available types of diagrams d. All...

Design a collection of database tables for an online store from which you intend to sell products you handcraft. The data you need to store includes the following attributes: Product number Product...

You use a ________ diagram when you want to emphasize the files, database tables, documents, and other components used by a systems software. a. State machine b. Component c. Deployment d. Use case

How does Apache Spark differ from Hadoop?

Why does an information gap still exist despite the surge in data in most firms?

Visit an organization that has implemented a database approach and interview individuals there about the security measures they take routinely. Evaluate each of the following at the organization: a....

At a top level, what are the main design variables in a multicore organization?

Let the language L be accepted by the transition graph T and let L not contain the word ba. We want to build a new TG that accepts exactly L and the word ba. (i) One suggestion is to draw an edge...

Write a function with an old-style interface that has this prototype: int reduce(long ar[], int n); The actual arguments should be the name of an array and the number of elements in the array.The...

Let L be some regular language in which all the words happen to have an even length. Let us de fine the new language Twist(L) to be the set of all the words of L twisted, where by twisted we mean the...

Derive the circuits that implement the state tables in Figures 6.55 and 6.56. Compare the costs of these circuits. Present state S1 S2 S3 S4 S5 S6 S7 S8 S9 Next state DN = 00 01 10 S1 S3 S3 S2 S2 S5...

A software company sells a package that retails for $99. Quantity discounts are given according to the following table: Write a program that asks the user to enter the number of packages purchased....

The body of a method is enclosed in __________. a. Curly braces { } b. Square brackets [] c. Parentheses () d. Quotation marks ""

Write a short C++ function to count the number of nodes in a circularly linked list.

Add a function size() to our C++ implementation of a singly link list. Can you design this function so that it runs in O(1) time?

Describe how to implement a capacity-limited stack, which uses the functions of a capacity-limited deque to perform the functions of the stack ADT in ways that do not throw exceptions when we attempt...

If we implemented the stack S from the previous problem with an array, as described in this chapter, then what is the current value of the top member variable?

Give a complete pseudo-code description of the recursive merge-sort algorithm that takes an array as its input and output.

Describe an algorithm for counting the number of left external nodes in a binary tree, using the Binary tree ADT.

Write a method that searches a numeric array for a specified value. The method should return the subscript of the element containing the value if it is found in the array. If the value is not found,...

Write a program that creates a String Array List. Continually prompt the user for Strings to add to the list until the user enters a sentinel value. Display the Strings in a single line separated by...

a. Create a Score Exception class that extends Exception and whose constructor accepts a String parameter and passes it to the Exception class constructor. Save the file as ScoreException.java. b....

Java is architecturally _________________. a. Neutral b. Oriented c. Specific d. Abstract

Repeat Exercise R-14.7 for the adjacency list representation, as described in the chapter. Exercise R-14.7 Give pseudo-code for performing the operation insert edge(u,v,x) in O(1) time using the...

Consider a simple thermostat that turns on a furnace when the temperature is at least 3 degrees below the setting, and turns off a furnace when the temperature is at least 3 degrees above the...

Write an essay on the relationship between evolution and one or more of autonomy, intelligence, rationality, and learning.

The resurgence of interest in AI in the 2010s is often attributed to deep learning. Explain what deep learning is, how it relates to AI as a whole, and where the core technical ideas actually...

Investigate the state of the art for domestic robots: what can be done (with what assumptions and restrictions on the environment) and what problems remain unsolved? Where is research most needed?

Find and analyze at least three sets of proposed principles for the governance of AI. What do the sets of principles have in common? How do they differ? How implementable are these principles?

Implement a performance-measuring environment simulator for the vacuum-cleaner world depicted in Figure 2.2 and specified on page 40. Your implementation should be modular so that the sensors,...

Define in your own words: (a) Intelligence, (b) Artificial intelligence, (c) Agent, (d) Rationality, (e) Logical reasoning.

Describe three different task environments in which the performance measure is easy to specify completely and correctly, and three in which it is not.

Section 19.6.5 (page 684) noted that the output of the logistic function could be interpreted as a probability p assigned by the model to the proposition that f(x) = 1; the probability that f(x) = 0...

Futoshiki is a Sudoku-like Japanese logic puzzle that is very simple, but can be quite challenging. You are given an n x n grid, and must place the numbers 1, . . . n in the grid such that every row...

Suppose we run value iteration in an MDP with only non-negative rewards (that is, R(s, a, s') 0 for any (s, a, s')). Let the values on the kth iteration be V k (s) and the optimal values be V (s)....

Consider an HMM with state variables {X i } and emission variables {Y i }. (i) [True or false] X i is always conditionally independent of Y i+1 given X i+1 . (ii) [True or false] There exists an HMM...

Transportation researchers are trying to improve traffic in the city but, in order to do that, they first need to estimate the location of each of the cars in the city. They need our help to model...

What is the purpose of risk management? Outline the risks you faced on the first day of college. Have any of these risks changed since then?

Think of an online retailer youve recently used or considered using for a purchase. Why is good design of that retailers interface important for the retailer? Visit the online retailer and evaluate...

Consider the following PCFG for simple verb phrases: 0.1 : V P Verb 0.2 : V P Copula Adjective 0.5 : V P Verb the Noun 0.2 : V P V P Adverb 0.5 : Verb is 0.5 : Verb shoots 0.8 : Copula is 0.2...

Which method of representing quantities involves discrete steps?

The IT manager at Pitt Fitness wants to secure the database using a method that includes processing logic to periodically change and synchronize with passwords stored on the database. Which of the...

Pitt Fitness is now routinely creating backups of their database. They store them on a server and have a number of backup files that need to be deleted. Which of the following files is the correct...

Which of the following data integrity constraints would ensure Pitt Fitness has a consistent method to record customer phone numbers? a. Format (Input Mask) b. Legal values c. Data type d. Validation...

The IT manager at Pitt Fitness is creating a backup of the company database. What is the best location for storing the backup? a. At the Downtown location b. Next to the current database for easy...

Suppose Pitt Fitness were using an enterprise-level DBMS when a thunderstorm caused a brief power loss to the database, stopping a class registration entry in midstream. When the power was fully...

Pitt Fitnesss IT person backs up the database every day at the end of business hours. After completing their evening classes, customers register for classes for the upcoming week. Assume that a...

Popular classes at Pitt Fitness fill up almost immediately. What database technique would work well to determine which people should be admitted into a popular class based on when they requested...

The new DBA at Pitt Fitness is working on catalog services in Microsoft Access. This employee has published an internal report on the database schema, but the managers receiving this report are...

GitHub and BitBucket are popular websites for . a. Hosting projects that use the Git language for version control b. Completing full-stack web app projects c. Posting technical questions and...

Valerie has just found a cookie on the ground. She is concerned that the cookie contains raisins, which she really dislikes but she still wants to eat the cookie. If she eats the cookie and it...

Which of the following changes to a database would most likely require the most rework to existing programs and queries? a. Adding a new field to a table b. Creating a new index c. Changing...

Which of the following is not a constraint on the primary key field for a table? a. There may be no null values. b. All values must be unique. c. All values must have a matching value in the foreign...

Pitt Fitness would like to analyze their options for an in-house database versus a cloud database-as-a-service. What are the benefits to moving their database to the cloud?

Recall that for a standard HMM the Elapse Time update and the Observation update are of the respective forms: P(X t | e 1:t1 ) = xt1 P(X t | x t1 )P(x t1 | e 1: t1 ) P(X t | e 1:t ) P(X t | e 1:t1...

Which SQL statement would give user cyclone1 the ability to select, insert, update, or delete records from the Students table? a. GRANT SELECT, INSERT on STUDENTS to cyclone1 b. GRANT ALL on STUDENTS...

Which feature potentially helps you recover data in an Access database? a. Journaling b. Incremental backups c. Two-step locking d. Compact and repair

Data consistency means . a. Allowing two or more users to access the database at the same time b. Giving each user a consistent view of the data including changes c. Using properties such as the...

Which of the following tables could be considered a composite entity in an ERM and a junction table in an E-R diagram? a. ClassInstructors b. Instructors c. Customers d. Classes

Which of the following tables could be considered a composite entity in an ERM and a junction table in an E-R diagram? a. Classes b. Instructors c. Reservations d. Customers

What is the relationship between the tables Classes and Customers? a. One to one b. One to many c. Many to many d. The tables arent related.

Suppose you are the architect being hired. What questions would you ask about the company with which youre interviewing, related to the areas listed in Section 25.2? Try to answer this question from...

What is the relationship between the tables Instructors and Classes? a. One to one b. One to many c. Many to many d. The tables arent related.

What is the relationship between the tables Classes and Reservations? a. One to one b. One to many c. Many to many d. The tables arent related.

What field(s) in the Customers table would be the most appropriate for a CustomerName index? a. LastName b. LastName and FirstName c. LastName, FirstName, and BirthDate d. CustomerID

For the table Customers (CustomerID, LastName, FirstName, StreetAddress, City, State, ZipCode, EmailAddress, PhoneNumber, BirthDate), which of the following is a secondary key? a. LastName, FirstName...

For the table Customers (CustomerID, LastName, FirstName, StreetAddress, City, State, ZipCode, EmailAddress, PhoneNumber, BirthDate), which field is a foreign key? a. LastName b. CustomerID c. There...

Western Digital, a developer of storage devices and solutions, has grown dramatically since it was established in 1970. Based in San Jose, California, they employ more than 61,000 with locations...

For the table Customers (CustomerID, LastName, FirstName, StreetAddress, City, State, ZipCode, EmailAddress, PhoneNumber, BirthDate), which field is the primary key field? a. LastName b. BirthDate c....

Which of the following is not a feature that Access uses to demonstrate and leverage the power of one-to-many relationships? a. Subdatasheets b. Lookup properties c. Automatically refreshing related...

Match each of the key terms above with the definition that best fits it. Integration testing ____ A testing technique in which participants examine program code for predictable language-specific...

In the Relationships window of the JC Consulting database, which primary key field does not participate in a one-to-many relationship? a. ProjectLineItemID b. ProjectID c. TaskID d. All primary key...

Which of the following best describes the Zips table in DBDL if City is often used for sorting? a. Zips (City, Zip) PK Zip SK City b. Zips (City, Zip) PK Zip c. Zips (City, Zip) PK Zip FK City d....

Add the following instructions to the computer of Sec 7-3 (EA is the effective address). Write the symbolic microprogram for each routine as in Table 7-2. (Note that AC must not change in value...

Write down the binary bit pattern assuming a format similar to that employed by the DEC PDP-8 (the leftmost 12 bits are the exponent stored as a twos complement number, and the rightmost 24 bits are...

Calculate A (B + C) by hand, assuming A, B, and C are stored in the modified 16-bit NVIDIA format described in 3.11.2 (and also described in the text). Assume 1 guard, 1 round bit, and 1 sticky bit,...

How would you write the DBDL for the five tables in the student-advisor-assignments.accdb Access database?

NVIDIA has a half format, which is similar to IEEE 754 except that it is only 16 bits wide. The leftmost bit is still the sign bit, the exponent is 5 bits wide and stored in excess-56 format, and the...

When we use gcc to compile combine3 with command-line option -02, we get code with substantially better CPE performance than with -01: We achieve performance comparable to that for combine4, except...

Why is a help desk function critical to system development? Discuss its interrelationship with the problem management and reporting system.

For a write-back, write-allocate cache, assuming 30% of replaced data cache blocks are dirty, what are the minimal read and write bandwidths needed for a CPI of 2? Consider the following program and...

Write a query to display the customer code, balance, and total purchases for each customer. Total purchase is calculated by summing the line subtotals (as calculated in Problem 12) for each customer....

Two clerks at Pitt Fitness need to update an address in the Access database for the customer Min Jee Choi. One clerk sees a note about updating the address and begins to edit Min Jees record. At the...

The new IT person hired by Pitt Fitness is becoming familiar with the database and requests the database schema. How can you generate the schema from the current Access database? a. Click the All...

The Pitt Fitness program director wants to list customer last names and first names along with the classes they are taking. He creates a query using the Customers and Classes tables. In the query...

Which operations can isolate a field in a word? 1. AND 2. A shift left followed by a shift right

For a given function, which programming language likely takes the most lines of code? Put the three representations below in order. 1. Java 2. C 3. MIPS assembly language

I. C has many statements for decisions and loops, while MIPS has few. Which of the following do or do not explain this imbalance? Why? 1. More decision statements make code easier to read and...

Given the importance of registers, what is the rate of increase in the number of registers in a chip over time? 1. Very fast: They increased as fast as Moores law, which predicted doubling the number...

What is the decimal value of this 64-bit twos complement number? 1111 1111 11111111 1111 11111111 1111 11111111 1111 11111111 11111111 1000 2)-8 3) -16, 4) 18,446,744,073,709,551.608. What is the...

What MIPS instruction does this represent? Choose from one of the four options below. op rs 8 00 rt 9 rd 10 shamt funct 0 34 1. sub $t0, $t1,$t2 2. add $t2, $t0, $t1 3. sub $t2, $t1, $t0 4. sub $t2,...

Which of the following statements about C and Java are generally true? 1. C programmers manage data explicitly, while its automatic in Java. 2. C leads to more pointer bugs and memory leak bugs than...

I. Which of the following statements about characters and strings in C and Java are true? 1. A string in C takes about half the memory as the same string in Java. 2. Strings are just an informal...