Computer Engineering Questions and Answers October 16, 2019

Draw an ERD for the following situation. (State any assumptions you believe you have to make to develop a complete diagram.) Also, draw a data model for this situation using the tool you have been told to use in your course: Stillwater Antiques buys and sells one-of-akind antiques of all kinds (e.g., furniture, jewelry, china, and clothing). An

1. Create a Windows Forms application. Use the following names for the project and solution, respectively States Capitals Project and States Capitals Solution. Save the application in the Chapter 4 folder. 2. Change the form files name to Main Form.vb. 3. Change the forms name to frmMain. Center screen the form and select the appropriate font and

Draw an ERD for the following situation. (State any assumptions you believe you have to make to develop a complete diagram.) Also, draw a data model for this situation using the tool you have been told to use in your course: Stillwater Antiques buys and sells one-of-akind antiques of all kinds (e.g., furniture, jewelry, china, and clothing). An

1. Create a Windows Forms application. Use the following names for the project and solution, respectively States Capitals Project and States Capitals Solution. Save the application in the Chapter 4 folder. 2. Change the form files name to Main Form.vb. 3. Change the forms name to frmMain. Center screen the form and select the appropriate font and

Assume that individual people in Kenya have identical preferences but some individuals are wealthier than others. Assume also that there is a single public good and a single private good.i. Show diagrammatically how you derive the demand curve for the public good, as a function of the tax price charged the individual. (5 marks)

Assume that individual people in Kenya have identical preferences but some individuals are wealthier than others. Assume also that there is a single public good and a single private good.i. Show diagrammatically how you derive the demand curve for the public good, as a function of the tax price charged the individual. (5 marks)

Draw an ERD for the following situation. (State any assumptions you believe you have to make to develop a complete diagram.) Also, draw a data model for this situation using the tool you have been told to use in your course: Stillwater Antiques buys and sells one-of-akind antiques of all kinds (e.g., furniture, jewelry, china, and clothing). An

1. Create a Windows Forms application. Use the following names for the project and solution, respectively States Capitals Project and States Capitals Solution. Save the application in the Chapter 4 folder. 2. Change the form files name to Main Form.vb. 3. Change the forms name to frmMain. Center screen the form and select the appropriate font and

Use the event decomposition technique to carry out use case modelling for the Safe Crawlers Artificial Caving System (SCACS) described below. For each event you identify, name the event, state the type of event, name the resultant use case and give a brief description of it, and name the actors involved. Present your results in the form of a table

Assume that individual people in Kenya have identical preferences but some individuals are wealthier than others. Assume also that there is a single public good and a single private good.i. Show diagrammatically how you derive the demand curve for the public good, as a function of the tax price charged the individual. (5 marks)

Use the event decomposition technique to carry out use case modelling for the Safe Crawlers Artificial Caving System (SCACS) described below. For each event you identify, name the event, state the type of event, name the resultant use case and give a brief description of it, and name the actors involved. Present your results in the form of a table

Draw an ERD for the following situation. (State any assumptions you believe you have to make to develop a complete diagram.) Also, draw a data model for this situation using the tool you have been told to use in your course: Stillwater Antiques buys and sells one-of-akind antiques of all kinds (e.g., furniture, jewelry, china, and clothing). An

1. Create a Windows Forms application. Use the following names for the project and solution, respectively States Capitals Project and States Capitals Solution. Save the application in the Chapter 4 folder. 2. Change the form files name to Main Form.vb. 3. Change the forms name to frmMain. Center screen the form and select the appropriate font and

Assume that individual people in Kenya have identical preferences but some individuals are wealthier than others. Assume also that there is a single public good and a single private good.i. Show diagrammatically how you derive the demand curve for the public good, as a function of the tax price charged the individual. (5 marks)

Use the event decomposition technique to carry out use case modelling for the Safe Crawlers Artificial Caving System (SCACS) described below. For each event you identify, name the event, state the type of event, name the resultant use case and give a brief description of it, and name the actors involved. Present your results in the form of a table

Use the event decomposition technique to carry out use case modelling for the Safe Crawlers Artificial Caving System (SCACS) described below. For each event you identify, name the event, state the type of event, name the resultant use case and give a brief description of it, and name the actors involved. Present your results in the form of a table

Please describe what a Firewall is and why it is important?Also, discuss where a Firewall sits on the 7 layer OSI model as well as any alternatives to a Firewall that may exist.Are there instances where you would choose not to deploy a Firewall? What risk is there of not deploying a Firewall or using alternative methods to secure your network?

An approach to the SDLC that plans the project in advance and then progresses according to the plan is called what?Question 2 options:1) A predictive approach2) An adaptive approach3) An Agile approach4) A project management approach

Software (such as typical tax preparation software) which in essence interviews the user is following which user interface metaphor?Question 3 options:1) Collaboration metaphor2) Interview metaphor3) Document metaphor4) Dialog metaphor

____ are a critical element of relational database design because they are the bases for representing relationships among tables.Question 4 options:KeysAttributesFieldsTables

Which of the following is NOT one of the principles of user-centered design?Question 7 options:1) Focus early on the users and their work2) Business requirements drive development.3) Evaluate design to ensure usability.4) Use iterative development.

A technique used to document dialog designs by showing a sequence of display screen sketches is ____.Question 8 options:1) storyboarding2) an interface diagram3) an event list4) requirements modeling

A metaphor of human-computer interaction (HCI) in which interacting with the computer, is much like carrying on a conversation is called ____.Question 9 options:1) desktop metaphor2) document metaphor3) direct manipulation4) dialog metaphor

One column of a table in a relational database is called a(n) ____.Question 10 options:attributerelationtupleelement

Which analysis model serves as an input model to a design class diagram?Question 1 options:1) Use case diagram2) Domain model class diagram3) Activity diagram4) System sequence diagram (SSD)

The realization of a use casedetermining what objects collaborate by sending messages to each other to carry out the use caseis done through the development of a(n) ____ diagram.Question 2 options:1) system sequence2) package3) design class4) interaction

Which of the following is an example of an interaction diagram?Question 3 options:1) Design class diagram2) Sequence diagram3) Package diagram4) Data access diagram

The primary models used for OO detailed design are ____ diagrams.Question 4 options:1) design class and statechart2) package and deployment3) package and statechart4) design class and interaction

The goal of _______ is to identify and fix as many errors as possible before units are combined into larger software units.Question 6 options:1) user testing2) unit testing3) integration testing4) stress testing

What is the first step in constructing a first-cut sequence diagram from the elements of the system sequence diagram (SSD)?Question 8 options:1) Determine which messages must be sent2) Create a use case controller3) Replace the :System object with all the objects that must collaborate4) Select an input message from the use case

CRC stands for what?Question 9 options:1) Collaboration responsibility card2) Class responsibility collaboration3) class relationship collaboration4) collaboration relationship class

A(n) ____ test is a test performed to determine whether the system fulfills user requirements.Question 10 options:1) acceptance2) integration3) system4) performance

When a message is sent from an originating object to a destination object it means that ______.Question 53 options:1) data is being passed from the origin object to the destination object2) a transition is occurring between the objects3) a method is being invoked on the originating object4) a method is being invoked on the destination object

Tomcat Cluster The diagram above shows the flow of session replication of Tomcat Cluster. Which of the following statements is CORRECT?Question 54 options:1) The class SessionReplicationClient has the method doRequest() and setSessionCommand()2) The class SessionReplicationClient has the method setSessionCommand() and the class ReplicationServlet

Richmond Alternative Family Therapy is a small family counseling practice. It needs an information system to schedule appointments. There are currently five counselors working in the practice. Their facility has four rooms that can be used for scheduling counseling sessions. Each appointment is scheduled for a particular date and has a start time

Which of the following systems is best described as a TPS system?Stock market price tracking systemGoogle AnalyticsSales and Market Analysis systemPoint of Sale System

The ______________ is the industry standard language used to manipulate data in a relational database. (use full words, not acronyms)

The primary purpose of a Data Warehouse is simply to store, or archive, massive amounts of data. yes or no

A Data Mart is a place that companies can use to purchase external data. True or False

The DBMS sits between the application software and the database. True or False

The kind of database that is used for day-to-day business operations is called a(n) ___________ database. (use full words in answer.)

The From clause can contain a second name for a table. This name is called an alias. TURE OR FALSE

Give full names of customers that have a 'D' as the third character in their last names. Make your query case insensitive. Eliminate duplicates.

The rule that says no key column value may be null is called referential integrity yes or no

In the relational model, a row in a table is called a tuple true or false

What is the first step in constructing a first-cut sequence diagram from the elements of the system sequence diagram (SSD)?Question 1 options:1) Determine which messages must be sent2) Create a use case controller3) Replace the :System object with all the objects that must collaborate4) Select an input message from the use case

If we modeled a order and the order items with a relationship, it would best be described as a _______ relationship.Question 4 options:1) aggregate2) composite3) specialization4) generalization

The realization of a use casedetermining what objects collaborate by sending messages to each other to carry out the use caseis done through the development of a(n) ____ diagram.Question 27 options:1) system sequence2) package3) interaction4) design class

____ refers to the ability of one object to be able to view and interact with another object.Question 32 options:1) Information hiding2) Navigation visibility3) Object reuse4) Encapsulation

System designers frequently create a class called a ____ that can serve as a collection point for incoming messages.Question 36 options:1) switchboard2) message controller3) use case controller4) message collector

If you are doing detailed design for the use case Create New Order, which class should receive the first input?Question 38 options:1) OrderTransaction2) Order3) OrderHandler4) Customer

The perfect technology assumption implies that _______.Question 39 options:1) the equipment will work without any problems2) the users understand the technology3) issues related to technology are ignored4) issues related to scalability (high volumes) are ignored

Which of the following is usually NOT included in a first-cut design class diagram?Question 51 options:1) Initial value information for attributes2) Attribute types3) Method signatures4) Navigation visibility arrows

In our conceptual methodology we represent real world entities as relations. true or false

The input function always returns the user's input as an integer. True False

What is the output of the following statement?print('One' 'Two' 'Three') OneTwoThree OneTwoThree One Two Three NothingThis statement contains an error.

Python allows programmers to break a statement into multiple lines. True False

When using the // operator to perform division, what happens if the result is a negative number? The result is rounded away from zero to the nearest integer. The result is truncated (meaning, the fractional part is thrown away). The result is converted to 0. The result is converted to a positive number.

After the execution of the following statement, what values will be assigned to the variables x, y, and z?x, y, z = 9, 8, 7 x will be assigned 7, y will be assigned 8, and z will be assigned 9. First 9 is assigned to all three variables, then 8 is assigned to all three, and then 7 is assigned to all three. After the statement finishes executing,

Write a Python script to map network drive in Python 3.0 on Windows 11.

I. Composition of Functions a. When one function plays the role of a variable in another function b. Notation (fo g)(x) or f(g(x)) c. Domain of f(g(x)) is the intersection of g(x) AND the final result d. Remark fog gof e. Example Let f(x) x and g(x) (2x) i. fog f(v(2x)) (2x)13 ii. Domain of g 1. Groot(2x) 2. 2x 0 3. x 0 vi. Domain of final

II. Linear Functions a. Polynomials of degree 1 i. Their equations can be written in 3 forms 1. Pointslope form yy m(x x) 2. Slopeintercept form y mx b 3. General form Ax By C, where A and B and C are integers a. i.e., 3x5y 11 (written implicitly, x and y are within the formula, slope is not obvious) ii. If L1 L, then m me (same slopes)

What is a Computer Engineer?

What Does a Computer Engineer Do?

How to Become a Computer Engineer

1.Top Coding Languages for Computer Programming 2.What Is Coding?

Need-to-Know Coding Languages for Programming What Is C?

Need-to-Know Coding Languages for Programming What Is C++? C++

Need-to-Know Coding Languages for Programming What Is C#?

Need-to-Know Coding Languages for Programming What Is Go?

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Need-to-Know Coding Languages for Programming What Is Java?

Need-to-Know Coding Languages for Programming What Is PHP?

Need-to-Know Coding Languages for Programming What Is Python?

Need-to-Know Coding Languages for Programming What Is R?

Need-to-Know Coding Languages for Programming What Is Ruby?

Need-to-Know Coding Languages for Programming What Is Rust

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Need-to-Know Coding Languages for Programming What Is SQL?

How do I become a Game Engineer?

Q.1 Explain with an Example 1 clustering 2 classifications 3. Supervised Learning 4. Unsupervised Learning 5. Hypothesis Space Q2. List and explain application areas of Machine learning. Q3. Compare Classification and Clustering with an example.

Q4. Define precision, recall and accuracy. Q5. Explain the various methods to perform cross validation Q6. How do you differentiate between supervised and unsupervised learning algorithm Q7. Consider the following 3 class classification matrix. Calculate recall and precision for each class Actual values Predicted values A B C A 15 2 3 B 7 15 8 C 2

2.

Given an array A of n numbers and another number x, the task is to check whether or not there exist two elements in A whose sum is exactly x.,,

Question 1 Given an array arr of n integers, construct a Product Array prod (of the same size) such that prodi is equal to the product of all the elements of arr except arri. PRACTICE NOW Question 2 Given an array arr of size N. The task is to find the sum of the contiguous subarray within a arr with the largest sum.,Question 3 Given an array that

Question 7 Given n nonnegative integers where each represents a point at coordinate . n vertical lines are drawn such that the two endpoints of line i is at and . Find two lines, which together with xaxis forms a container, such that the container contains the most water. The program should return an integer which corresponds to the maximum area

Question 11 Given a set of nonoverlapping intervals and a new interval, insert the interval at correct position. If the insertion results in overlapping intervals, then merge the overlapping intervals. Assume that the set of non overlapping intervals is sorted on the basis of start time, to find correct position of insertion.,Question 12 Given a

Question 1 Given a boolean matrix mat MN of size M X N, modify it such that if a matrix cell matij is 1 (or true) then make all the cells of ith row and jth column as 1. PRACTICE NOW Question 2 Given a 2D array, print it in spiral form.,Question 3 Transpose of a matrix is obtained by changing rows to columns and columns to rows. In other words,

Question 1 Given a string str, find the length of the longest substring without repeating characters. PRACTICE NOW Question 2 Given a string, the task is to find the maximum consecutive repeating character in a string. Note We do not need to consider the overall count, but the count of repeating that appears in one place.,Question 3 Given two

Question 7 Given a string str of length N, consisting of ( and ) only, the task is to check whether it is balanced or not. PRACTICE NOW Question 8 Write a program to check if a sentence is a palindrome or not. You can ignore white spaces and other characters to consider sentences as a palindrome.,Question 9 Given a string str, the task is to find

Question No 04 Consider the below initial and goal states (Two equally acceptable goals are given) for a formation problem and answer the following questions. The agent can move the red duck on top of the other red duck in this problem as well as the yellow ducks on top of the other yellow ducks, and no ducks are allowed to be placed above Height

Create a Windows Forms application. Use the following names for the project and solution, respectively: Florist Project and Florist Solution. Submit the assignment to Dropbox. Change the form files name to Main Form.vb. Change the forms Name property to frmMain. Change the forms Font property to Segoe UI, 9pt. Change the forms MaximizeBox property

Florist Haven Freshest flowers in town Hours MondayFriday 6am to 8pm Saturday Sunday 6am to 3pm Closed Main Form.vbx Main Formvb (Design) Florist Project 2 3 A 5 Name Purpose Programmer frmMain Florist Project Display store information. on Public Class fraMain Private Sub btnExitClick(sender As Object, Me.Close() End Sub Egit 10 End Class

How would you (graphically) identify each of the follwing ERM components in a Crow's Foot notation? a.) an entity b.) the cardinality (0,N) c.) a weak relationship d.) a strong relationship

A multinational company has consulted you to advise on how they should handle their data migration project. After gathering the initial requirements of your client, you know right away that the containerization of their applications will play a crucial role in the success of this project. Research on how containerization in Azure impacts the

1.) Write about the importance/ advantages of computer networks? 2.) what are the disadvantages of computer networks explain briefly? 3.) Write briefly about the REFERENCE MODELS in computer networks. 1. OSI MODEL 2. TCP/IP MODEL

The triple bottom line approach to sustainability includes which of the following reporting categories? a . international performance, environmental performance, and social performance b . financial performance, social performance, and international performance c . environmental performance, financial performance, and social performance d . social

Which type of Programming does Python support?

Peter has two strings of same length SAP labs question

INPUT OUTPUT y a b d e f g 0 0 1 1 1 1 1 1 0 0 1 0 1 1 0 0 0 0 1 0 1 1 0 1 1 0 1 1 1 1 1 1 1 0 0 1 1. Write out the seven logical statements (Boolean equations) for each of the outputs in terms of the two inputs y and z. 2. Use the Boolean algebra properties to reduce these equations and show that all seven outputs can be implemented with a

Design a distributed system for real-time data processing with fault tolerance and scalability. Specifically, develop a system that can handle large-scale sensor data for a smart city infrastructure. The system must meet the following requirements: Real-time Data Processing: The system should process sensor data from thousands of sensors with

Design a secure and efficient peer-to-peer (P2P) network for a file-sharing system. The system should meet the following requirements: Security: Ensure data integrity, confidentiality, and authentication between peers. Efficiency: Optimize for low latency and high throughput in data transfer. Scalability: The system should handle a growing number