Question 1 5 pts (TCO 4) What is a packet? A unit of data transmitted over the network. A key protocol at the transport layer of the Internet architecture. A text-based, request-response protocol that calls for only one round of exchange of messages. Allows a selected set of programming data types and data structures to be specified with IPC operations. Question 2 5 pts (TCO 4) Explain datagram socket API. Supports the exchange of continuous units of data. Supports the exchange of discrete units of data. Supports the exchange of continuous and discrete units of data. None of the statements is correct. Question 3 5 pts (TCO 4) What is a connection socket? A type of stream-mode socket API, provided via the ServerSocket class that accepts connections. A type of stream-mode socket API, provided via the Socket class that accepts connections. A type of stream-mode socket API, provided via the ServerSocket class that exchanges data. A type of stream-mode socket API, provided via the Socket class that exchanges data. Question 4 5 pts (TCO 4) What is the difference between the ServerSocket class and the Socket class? The ServerSocket class is for the transfer of data and the Socket class is for the establishment of connections. The ServerSocket class is for the establishment of connections and the Socket class is for the transfer of data. The ServerSocket class utilizes data sockets while the Socket class utilizes connection sockets. The ServerSocket class utilizes connection sockets, but the Socket class doesn’t utilize any socket. Question 5 5 pts (TCO 4) What is the Java Secure Socket Extension (JSSE)? A socket API that provides nonblocking I/O operations. A process that wishes to communicate with the server. A set of Java packages that enable secure Internet communications. A stream-mode socket API that enables secure Internet communications. Question 6 5 pts (TCO 5) What are the differences between client processes and server processes? Client processes run on a network-connected computer and a server process access the server to obtain a network service. Client processes access the server to obtain a network service and a server process runs on a network-connected computer. Client processes run on a network-connected computer called a server host. A server process accesses the server to obtain a network service called a server host. Question 7 5 pts (TCO 5) What is a request-response pattern? A single interaction between the server and client. The interaction of processes within the client-server model. A term used for a void function. A process that makes use of a single central processing unit to execute one or more programs for each application. Question 8 5 pts (TCO 5) What is a stub? A method defined with minimal code to allow the program to compile and run initially. A class that contains the necessary methods for stream-mode IPC. A code that uses the stream-mode socket API to accept a connection. A separation within the client-side software that allows modifications to be made to the logic at one layer without requiring changes to be made at the other layers. Question 9 5 pts (TCO 5) What is an iterative server? Services one client at a time. Has a limited server for exchanging data. Both a & b. None of the statements is correct. Question 10 5 pts (TCO 5) What is a stateful server? A server that must maintain some state information in order to provide its service. A server that sometimes should maintain some state information in order to provide its service. A server that provides a service according to a stateless protocol. None of the statements is correct. Question 11 5 pts (TCO 6) What is the state? Data of the entity. Data is contained in the instance variables of each object. Both a & b. None of the statement is correct. Question 12 5 pts (TCO 6) What are remote methods? Methods of local object. Methods belonging to a local object. Methods belonging to any object. Methods of a distributed object. Question 13 5 pts (TCO 6) Which of the following is true about procedural programming? Postdates object-oriented programming. A function is not a control structure. A procedure is a control structure that provides the abstraction for an action. The action of a function is invoked by a variable. Question 14 5 pts (TCO 6) A skeleton layer _____ Interacts with the stub layer on the client side. Interacts with the stub layer on the server side. Interacts with the other layers on the client side. Interacts with the other layers on the server side. Question 15 5 pts (TCO 6) Which of the following is true about the Remote interface? The RMI API is the starting point of creating a local object The RMI API is the starting point of creating a distributed object. A Java interface is not a class but a complex method. A Java interface contains the implementations of the method. Question 16 5 pts (TCO 7) Hypertext Markup Language (HTML) ________ Is a markup language used to create documents that can be retrieved using the Web. Is based on SGML. Can represent simple structured documents. All of the above. Question 17 5 pts (TCO 7) Base64 _______ Is an encoding scheme for text contents specified with the MIME protocol. Is an encoding scheme for text contents transferred between UNIX systems. Is an encoding scheme for text contents transferred between Windows systems None of the statements is correct. Question 18 5 pts (TCO 7) Which of the following is true about persistence? CGI scripts and Servlets are the same in terms of persistence. Servlets instances will run for at least as long as there is a request issued to them. CGI scripts will run for at least as long as there are requests issued to them. A CGI script is loaded only once. Question 19 5 pts (TCO 7) Which of the following is true about methods specified with each servlet object? init method is invoked when a client request is forwarded to the servlet. shutdown method is invoked when a servlet is no longer needed. service method is invoked when a servlet is initialized. service method is invoked when a servlet is no longer needed. Question 20 5 pts (TCO 7) Service discovery protocols ________ Allow a service to be deregistered. Allow a service to be registered and located. Allow a service to be described to the directory. Allow a service to be deleted from the directory. Question 21 30 pts (TCO 2 and 4) Write the listenSocket method (server-side program) a - Write the required lines of code that will create a ServerSocket object with a port number 1024 on which the server program is going to listen for client communications. b - Write the required lines of code that will create a new socket object. c - Write the required lines of code that will read the data sent over the socket connection from the client program. Copy the above code into the method below: public void listenSocket(){ // PART A //PART B // PART C } Question 22 30 pts (TCO 2 and 4) Write the listenSocket method (client-side program) with the hostname mydevry1 and port number 1024. Write it to send the data over the socket connection to the server and read the text sent by the server back to the client.

Course Scheduler Final Project Part 1You have been asked to develop a Course Scheduling application for a College. The application will enable two types of Users to perform their necessary functions to schedule courses by semester. The Admin User will perform multiple functions to set up the database so that Students my schedule courses. The functions each User will be able to perform will be described below.This application should have a very nice GUI interface and will be a database driven application. The database used will be Derby. This application must use good Object-Oriented Design and Programming. The database must use good Object-Oriented Design and Programming. There is a very close correlation between Object-Oriented Design and Database Design. Your application design should include at least four classes besides the main GUI class. Your database accesses should be in the classes that correlate with the database tables.This assignment is the first half of the final project and will be submitted asFinal Project Part 1.This phase of the project will implement the following Admin functions:Add SemesterA semester is added to the database. The semester is identified by one name.Add CourseA new course is added to the database. The course is identified by the semester it is to be added to, the code for the course, the description of the course and the maximum number of students the course will contain that semester.Add StudentA student is added to the database. The student is identified by a studentID, the student’s first name, and the student’s last name.This phase of the project will implement the following Student functions:Schedule CourseThe student will be scheduled in the class for the specified semester, if there are seats available. If there are no seats available, the student will be put a wait list for that Course. The waiting list must be maintained in the order the students tried to schedule the course.Display ScheduleThe Display Schedule function will display the current schedule for a specified student for the current semester.Display CoursesThe Display Courses function will display a complete list of courses for the current semester.Testing scenario:A testing scenario will be provided to assist you in testing this application. It will be called Final Project Part 1 Test Script in Canvas.Database considerations:Your database will be created but all of the tables should be empty when your project is submitted.GUI Guidelines:The user should be required to enter only unknown data. Drop down lists of known data such as Student names, Course Codes, or Semesters should be displayed for the user to select. Combo Boxes should be used for the drop-down lists on the form. When information is requested to be displayed, e.g., for a Display command, all of the requested information must be displayed. When a command is performed, the results of that command should be displayed to the user on the same display without the user needing to use a Display function to see what was done.For this assignment, you may, and I recommend, the use of the GUI designer in NetBeans.Submission Guidelines:Don't forget to submit your zipped PROJECT folder and your zipped DATABASE folder. Zip the ENTIRE database folder and the ENTIRE project folder and submit the two zipped files in the assignment under one submission.Note: Your project must be created with the name ‘CourseSchedulerNameID’, where Name is your name and ID is your psu account id, e.g. xxx1234. The database must be created with the name ‘CourseSchedulerDBNameID’, and a username and password of java and java. All tables should be empty.Grading Criteria:In this project I will be looking for good OO design practices and this includes: Use of getter and setter methods for class variables Good naming of your classes, methods and variables Correct use of static and non-static methods The way you split this project into classes. All of your updates to the database must be done using SQL statements, do not use ResultSetTableModels to update the database. If a SQL statement to update the database needs to contain a variable, then you must use PreparedStatements, do not use concatenation of strings to create the SQL statement.The Grading Rubric for Final Project Part 1 is posted in Canvas.Note: Make sure you look at all the videos about this assignment and the Course Scheduler Design Layout in Canvas before starting this assignment. You may also use the Sample Project I have provided in Canvas to start your project.