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Released |
Beta |
Frozen |
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Sockets
Use the java.net.*.*Socket classes.
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Socket 2 questions
- Develop and troubleshoot a Socket.
- Use the methods of the Socket class to change the state of the Socket.
- List the exceptions thrown by the Socket class.
- Configure the properties of a Socket programmatically.
Not Covered here: SSLSockets.
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3 |
19 |
9 |
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ServerSocket 2 questions
- Develop and troubleshoot a ServerSocket.
- List and explain the methods of the ServerSocket class.
- Use the implAccept() method to allow subclasses of ServerSocket to override the accept() method of ServerSocket.
- List the exceptions thrown by the ServerSocket class.
Not Covered here: SSLServerSockets.
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2 |
14 |
4 |
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Secure Socket Layer 2 questions
- Design secure Sockets and ServerSockets using SSLSocket and SSLServerSocket.
- Specify the package where Secure Socket Layer classes and methods exist (javax.net.ssl).
- Describe when it would not be appropriate to use SSLSockets/SSLServerSockets.
- Recommend methodologies that encourages better security.
- Use the HandshakeCompletedListener to receive notifications about the completion of an SSL Handshake on a given SSL connection.
- Explain requirements and process of using CipherSuites.
- Describe the Handshaking mechanism and know when it is used.
- Compare and contrast SSL server mode and SSL client mode.
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5 |
6 |
1 |
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DatagramSocket 2 questions
- Describe the differences between a DatagramSocket and a Socket.
- Build an application using a DatagramSocket (or MulticastSocket).
- Retrieve information about a DatagramSocket programmatically.
- Given a scenario using a DatagramSocket, determine either which exception will be thrown or whether a transmission will be completed successfully.
Not covered here: Security of DatagramSockets.
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4 |
11 |
1 |
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URIs and URLs
Use the java.net.UR* classes.
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URI & URL 3 questions
- Describe the differences between a URI and URL.
- Define URI and URL and list their components.
- Explain what is meant by a URI being absolute/relative and hierarchical/opaque.
- Configure a URL programmatically.
- Use the getAuthority(), getContent(), getFile(), getHost(), getPath(), getPort(), getProtocol(), getQuery(), getRef(), and getUserInfo() methods to get specific parts of a URL or URI.
- Identify the exception thrown by the URL class given code and/or a scenario.
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6 |
16 |
19 |
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URLConnection 2 questions
- Identify the superclass of all classes that represent a communications link between the application and a URL.
- Use connect() to open a communications link to the resource referenced by the passed URL.
- Configure a URLConnection programmatically.
- Retrieve header information for a URLConnection.
- Set the connection timeout of a URLConnection.
Not covered here: HttpsURLConnection, JarURLConnection.
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5 |
7 |
5 |
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URLEncoder & URLDecoder 2 questions
- Use URLEncoder to encode URLs with different encodings.
- Differentiate between an encoded and decoded URL.
- Use URLDecoder to decode URLs with different encodings.
- List which characters are encoded and which characters remain the same using URLEncoder.
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4 |
4 |
3 |
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Protocol Handlers 1 question
- Describe what a Protocol Handler does.
- Explain the requirements and process of using a ProtocolHandler.
- Identify the three different classes that are used for the Protocol Handler mechanism (URL, URLConnection, URLStreamHandler).
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1 |
5 |
1 |
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Content Handlers 2 questions
- Describe the purpose of a ContentHandler.
- Design a content handler that will have a different MIME-type (e.g. "text/groovy").
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2 |
3 |
2 |
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Remote Method Invocation 2 questions
- Define Remote Method Invocation as it applies to Java.
- Explain the requirements for RMI to be used.
- Describe DGC (Distributed Garbage Collection).
- Use the java.rmi.registry.LocateRegistry to obtain a reference to a bootstrap remote object registry on a particular host.
The Java Remote Method Invocation Specification is a very good reference to help you with this part of the exam.
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1 |
36 |
11 |
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Java SE Networking
