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Client/Server Processes, TCP, UDP, and Port Numbers - Quiz

Each question is worth one point. Select the best answer or answers for each question.

1. You have just installed a DNS server and a Web server on your UNIX system. Which two transport-layer protocols do these two daemons use?
Please select the best answer.
  A. IP and UDP
  B. UDP and TCP
  C. TCP and IP
  D. HTTP and UDP

2. What information is presented in the file /etc/services?
Please select the best answer.
  A. A list of conventional names for TCP/IP services and associated well-known port numbers
  B. A list of client/server transactions using TCP/IP services
  C. A list of network services available and the protocols they are using on a UNIX system
  D. A list of client processes on one machine and their corresponding server processes on another

3. A process opening a connection on a port numbered from 1 to 1023 requires:
Please select the best answer.
  A. A telnet connection
  B. Root permissions
  C. A system administrator's password
  D. Read and write permission

Correct answers:

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