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Which field in Domain Name System message format specifies the class of query?

A. Type

B. Class

C. Rdlength

D. Rdata

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  3. In the IP address 129.2.8.9, what does 129.2 specify?
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  5. Which of the following can provide a backbone network of 600 meters in length without using repeaters?
  6. What is the default subnet mask for a class B network?
  7. What does a patch cable connect to within an Ethernet network?
  8. Which directory service is used in Windows 2000 Server?
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  10. Which of the following SIP request terminates a call?
  11. Which of the following transmission media suffers more from transmission impairment?
  12. What is the maximum distance of single-mode fiber (SMF)?
  13. Which is the port used by POP3?
  14. What is the default subnet mask for a class A network?
  15. Your Web server is also configured as an FTP server. What part of the data packet will tell the server…
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  17. You are browsing www.microsoft.com on a machine named host.contoso.org.. What is the order of domain…
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  20. AppleTalk protocol configures hosts in zones on the network.
  21. 80 is the well-known port number for the HTTP service.
  22. What is the default subnet mask for a class B network?
  23. When collection of various computers seems a single coherent system to its client, then it is called…
  24. _____________________ are set up to fulfill service ordering, service assurance, and billing functions.
  25. You're configuring a dial-up connection to an ISP. Which of the following protocols is used?
  26. What is the pattern of a preamble?
  27. ________is a multicast extension to OSPF Version 2.
  28. _____________ command is used by the client to transfer the job across to the server.
  29. TCP protocol is responsible for logical addressing and delivery of packets.
  30. Which of the following was initially designed as a video and audio compression standard?