Question 1

The Internet address 128.0.0.1 is also known as __________.

Accepted Answer

A)  localhost. 
B)  remotehost. 
C)  localserver. 
D)  remoteserver. 
A)  localhost. 
B)  remotehost. 
C)  localserver. 
D)  remoteserver. A

Question 2

Which statement is false? Normally, an applet __________.

Accepted Answer

A)  is allowed to read files only on the server from which the applet was downloaded. 
B)  can read files on any server that can be reached over the network. 
C)  cannot read files on the system on which it executes. 
D)  has different file access rights than an application running on the same machine. 
A)  is allowed to read files only on the server from which the applet was downloaded. 
B)  can read files on any server that can be reached over the network. 
C)  cannot read files on the system on which it executes. 
D)  has different file access rights than an application running on the same machine. B

Question 3

To be able to send and receive messages in parallel over a network connection, a program must use __________ of execution.

Accepted Answer

A)  one thread. 
B)  two threads. 
C)  three threads. 
D)  four threads. 
A)  one thread. 
B)  two threads. 
C)  three threads. 
D)  four threads. B

Question 4

A JEditorPane generates HyperlinkEvents only if it is __________.

Accepted Answer

A)  invisible. 
B)  visible. 
C)  uneditable. 
D)  editable. 
A)  invisible. 
B)  visible. 
C)  uneditable. 
D)  editable.

Question 5

Which statement is false?

Accepted Answer

A)  With datagram sockets a process establishes a connection to another process. 
B)  The TCP protocol is used for transmission with stream sockets. 
C)  The UDP protocol is used for transmission with datagram sockets. 
D)  With the UDP protocol packets can be lost, duplicated or even arrive out of sequence. 
A)  With datagram sockets a process establishes a connection to another process. 
B)  The TCP protocol is used for transmission with stream sockets. 
C)  The UDP protocol is used for transmission with datagram sockets. 
D)  With the UDP protocol packets can be lost, duplicated or even arrive out of sequence.

Question 6

Output __________ are typically used to increase the efficiency of an application by sending larger amounts of data fewer times.

Accepted Answer

A)  objects. 
B)  broadcasters. 
C)  buffers. 
D)  None of the above. 
A)  objects. 
B)  broadcasters. 
C)  buffers. 
D)  None of the above.

Question 7

The port number at which the server waits for connections is often called the __________ point.

Accepted Answer

A)  handhold. 
B)  handshake. 
C)  handoff. 
D)  handle. 
A)  handhold. 
B)  handshake. 
C)  handoff. 
D)  handle.

Question 8

Which statement is false?

Accepted Answer

A)  Streams-based transmission is connection-oriented. 
B)  Connection-oriented transmission is like the telephone system. 
C)  Datagram-based transmission is connection oriented. 
D)  Connectionless transmission is like the way the mail is carried by the postal service. 
A)  Streams-based transmission is connection-oriented. 
B)  Connection-oriented transmission is like the telephone system. 
C)  Datagram-based transmission is connection oriented. 
D)  Connectionless transmission is like the way the mail is carried by the postal service.

Question 9

If an ObjectInputStream is used to read information from the server, an __________ is generated when the client attempts to read a value from a stream on which end-of-stream is detected.

Accepted Answer

A)  EOF. 
B)  EOS. 
C)  EOFException. 
D)  EOSException. 
A)  EOF. 
B)  EOS. 
C)  EOFException. 
D)  EOSException.

Question 10

Specifying a port that is already in use or specifying an invalid port number when creating a DatagramSocket results in a __________.

Accepted Answer

A)  SocketException. 
B)  PortInUseException. 
C)  PortException. 
D)  ConnectException. 
A)  SocketException. 
B)  PortInUseException. 
C)  PortException. 
D)  ConnectException.

Question 11

__________ sockets and the __________ protocol are more desirable for the vast majority of Java programmers.

Accepted Answer

A)  Stream, UDP. 
B)  Stream, TCP. 
C)  Datagram, UDP. 
D)  Datagram, TCP. 
A)  Stream, UDP. 
B)  Stream, TCP. 
C)  Datagram, UDP. 
D)  Datagram, TCP.

Question 12

A(n) __________ is thrown when a server address indicated by a client cannot be resolved.

Accepted Answer

A)  ConnectException. 
B)  ServerException. 
C)  MalformedURLException. 
D)  UnknownHostException. 
A)  ConnectException. 
B)  ServerException. 
C)  MalformedURLException. 
D)  UnknownHostException.

Question 13

Once the ServerSocket is created, the server can listen indefinitely (or block) for an attempt by a client to connect. This is accomplished with a call to the ServerSocket method __________.

Accepted Answer

A)  connect. 
B)  block. 
C)  accept . 
D)  listen. 
A)  connect. 
B)  block. 
C)  accept . 
D)  listen.

Exam 26: Networking

The Internet address 128.0.0.1 is also known as __________.

Which statement is false? Normally, an applet __________.

To be able to send and receive messages in parallel over a network connection, a program must use __________ of execution.

A JEditorPane generates HyperlinkEvents only if it is __________.

Which statement is false?

Output __________ are typically used to increase the efficiency of an application by sending larger amounts of data fewer times.

The port number at which the server waits for connections is often called the __________ point.

Which statement is false?

If an ObjectInputStream is used to read information from the server, an __________ is generated when the client attempts to read a value from a stream on which end-of-stream is detected.

Specifying a port that is already in use or specifying an invalid port number when creating a DatagramSocket results in a __________.

__________ sockets and the __________ protocol are more desirable for the vast majority of Java programmers.

A(n) __________ is thrown when a server address indicated by a client cannot be resolved.

Once the ServerSocket is created, the server can listen indefinitely (or block) for an attempt by a client to connect. This is accomplished with a call to the ServerSocket method __________.

Introduction to Computers, the Internet and Java

Introduction to Java Applications; Inputoutput and Operators

Introduction to Classes, Objects, Methods and Strings

Control Statements: Assignment, and Operators

Control Statements: Logical Operators

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism and Interfaces

Exception Handling: a Deeper Look

Javafx Graphical User Interfaces

Javafx Gui

Strings, Characters and Regular Expressions

Files, Inputoutput Streams, Nio and Xml Serialization

Generic Collections

Lambdas and Streams

Recursion

Searching, Sorting and Big O

Generic Classes and Methods: a Deeper Look

Custom Generic Data Structures

Concurrency

Accessing Databases With Jdbc

Swing Gui Components

Graphics and Java 2d

Java Persistence Api Jpa

Javaserver Faces Web Apps

Javaserver Faces Web Apps

Swing Gui Components

Filters

sockets and the protocol are more desirable for the vast majority of Java programmers.