What is the default subnet mask for a class B network?





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  1. Which OSI model layer provides for encryption and decryption of data?
  2. Where are routing tables placed?
  3. In ----------------------- configuration, the switch begins to forward the packet as soon as it is received.…
  4. What is the distance limitation of Cat5 UTP?
  5. Which piece of equipment operates at both the data-link and network layers?
  6. Which of the following IP addresses are used by multicast devices?
  7. Which of the following delivery methods works with only one source and one destination? Multicast
  8. Which of the following fields holds the packets of several protocols?
  9. What are the subnet mask in dotted decimal notation for /20 networks?
  10. Telnet protocol uses ___________ representation for the function Synchronize.
  11. A router receives an IP packet with source IP address and destination IP address…
  12. Which directory service is used in Windows 2000 Server?
  13. Which of the following states suggests that the connection has been ended either at the request of the…
  14. Which cable type is immune to outside interference and crosstalk?
  15. Which of the following can provide a backbone network of 600 meters in length without using repeaters?
  16. In 1996, 36.44% of _________ addresses were brought in use.
  17. ________acts as source and destination for IP traffic.
  18. Pure ALOHA has a maximum throughput of -----------
  19. Which is the port used by POP3?
  20. _________ is a type of domain name queries.
  21. The general form of the SMTP destination address is ________________.
  22. Data Transmission is not a layer in the OSI model
  23. What is the IEEE specification for Ethernet?
  24. Which class of IP addressing was not brought in much use?
  25. In flags message attribute, which of the following flag indicates that message has been completed?
  26. What can be used in the place of DNS to resolve host names to IP addresses?
  27. What is the default port for Telnet?
  28. Which of the following can be used to transfer files from a Unix server?
  29. Which of the following is used for testing the data-link connection in a PPP network?
  30. Which of the following protocols is described in RFC 793?