Quiz1PracticeProblems

Quiz1PracticeProblems - IT420 Spring 2011 Practice Problems...

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IT420 Spring 2011 Practice Problems 1. As the message moves up from the network interface layer to the application layer in the destination host, headers are ______ . a. added b. removed c. rearranged d. modified 2. Client and server programs operate at which layer of the layered model? a. network interface c. transport b. internet d. application 3. What protocol might an e-mail client use to retrieve mail from a mailbox? a. MIME b. SMTP c. POP3 d. HTTP 4. Sampling is used to a. convert analog data to a digital format b. convert digital data to an analog format 5. What is the difference between the accept and the connect calls in the socket API? Address what each does and where each is performed. You do not need to write code. 6. A sine wave has a frequency of 5 KHz. What is the period? 7. Encode the data stream 00111010 using Manchester line coding. Show the beginning and end of each bit time. Please be neat. 8.
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Quiz1PracticeProblems - IT420 Spring 2011 Practice Problems...

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