CS506 Midterm MCQs by VU Topper RM

Q1. Vu-Topper RM (1 marks)

How many ports are available for TCP socket?

64k Page 193

Q2. Vu-Topper RM (1 marks)

In Java, ____________ types of statement objects are available for sending SQL queries to the databases. Three Page 140

Q3. Vu-Topper RM (1 marks)

Which of the following statement object is used to execute stored procedures? CallableStatement Page 159

Q4. Vu-Topper RM (1 marks)

If you want the timer to fire only the first time and then stop, invoke

SetRepeats G

Q5. Vu-Topper RM (1 marks)

How many ports are available for UDP socket?

64k Page 193

Q6. Vu-Topper RM (1 marks)

In order to include graphics in your Java program, it is mandatory to extend from- ---------class. JPanel G

Q7. Vu-Topper RM (1 marks)

Which of the following methods is called only once during the life cycle of an Applet?

init( ) Page 184

Q8. Vu-Topper RM (1 marks)

An applet can be defined as: A small program written in java and included in an HTML page G

Q9. Vu-Topper RM (1 marks)

Which of the following methods is used to determine whether a database is read only or not?

isReadOnly() Page 177

Q10. Vu-Topper RM (1 marks)

Timer t = new Timer (1000, this); action events Page 179

Q11. Vu-Topper RM (1 marks)

How many simultaneous connections can be opened using TCP and UDP ports? 128k Page 193

Q12. Vu-Topper RM (1 marks)

There are ________ steps in order to communicate successfully with database. Eight Page 144

Q13. Vu-Topper RM (1 marks)

An applet is typically embedded in a Web page and can be run from a browser. False Page 181

Q14. Vu-Topper RM (1 marks)

In the context of Java Graphics; most of time, painting is done automatically. Java components Page 165

Q15. Vu-Topper RM (1 marks)

If we want to animate something like ball, moving from one place to another, we constantly need to call paint ( ) method. False G

Q16. Vu-Topper RM (1 marks)

In ResultSetMetaData methods, ____________ method returns the suggested column label for printouts. The getColumnLabel() Page 157

Q17. Vu-Topper RM (1 marks)

The server just waits, listening to the socket for a client to make a connection request. Client - Server Communicate Page 193

Q18. Vu-Topper RM (1 marks)

Which of the following methods is invoked by the AWT package to support paint and repaint operations?

paint( ) Page 180

Q19. Vu-Topper RM (1 marks)

Which of the following statement object is used to execute precompiled SQL statements?

PreparedStatement Page 147

Q20. Vu-Topper RM (1 marks)

Which of the following is the correct java code statement that is used to establish the connection?

Connection con = DriverManager.getConnection(url); Page 153

Q21. Vu-Topper RM (1 marks)

Which of the following syntaxe is used to get ResultSetMetaData object? MetaDataEx Page 157

Q22. Vu-Topper RM (1 marks)

FTP (File Transmission Protocol) works on _____________ port. 21 Page 194

Q23. Vu-Topper RM (1 marks)

Exception handling code is written in ______. catch block Page 72

Q24. Vu-Topper RM (1 marks)

The classes which contain the word _____ in their name are byte oriented streams.

Q25. Vu-Topper RM (1 marks)

Which command of the following commands is used to compile “Java Test” java file’s code?

javac JavaTest.java G

Q26. Vu-Topper RM (1 marks)

WindowListener interface contains ________ methods.

Q27. Vu-Topper RM (1 marks)

Java developed in __________ 1995 Page 12

Q28. Vu-Topper RM (1 marks)

You can ---------to a network using sockets. Read/Write Page 222

Q29. Vu-Topper RM (1 marks)

Socket is a --------------communication channel between hosts. Uni-directional Bi-directional Page 211