61. Which of these is a bundle of information passed between machines?

1. 1. DatagramSocket

   
   
   

   2. Datagrams

   
   
   

   3. Mime

   
   
   

   4. Cache

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   The Datagrams are the bundle of information passed between machines.

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62. Which of these class is necessary to implement datagrams?

1. 1. DatagramSocket

   
   
   

   2. DatagramPacket

   
   
   

   3. Only A

   
   
   

   4. A and B both

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   A and B both: DatagramSocket, DatagramPacket.

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63. Which of these method of DatagramPacket is used to find the port number?

1. 1. recievePort()

   
   
   

   2. findPort()

   
   
   

   3. port()

   
   
   

   4. getPort()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   getPort()

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64. Which of these method of DatagramPacket is used to obtain the byte array of data contained in a datagram?

1. 1. getBytes()

   
   
   

   2. getArray()

   
   
   

   3. recieveBytes()

   
   
   

   4. getData()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   getData()

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65. Which of these methods of DatagramPacket is used to find the length of byte array?

1. 1. Length()

   
   
   

   2. getLength()

   
   
   

   3. getnumber()

   
   
   

   4. length()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   getLength returns the length of the valid data contained in the byte array that would be returned from the getData () method. This typically is not equal to length of whole byte array.

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