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Which piece of equipment operates at both the data-link and network layers?

A. Hub

B. Bridge

C. Brouter

D. Router

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
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  4. What is the default subnet mask for a class B network?
  5. In which of the following states after selecting a mailbox, actions can be taken against the mail within…
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  10. You wish to install a 100BaseT network. What type of cabling will you use?
  11. Which of the following can be used to transfer files from a Unix server?
  12. When collection of various computers seems a single coherent system to its client, then it is called…
  13. Which of the following use default routes for inter domain routing?
  14. In TCP segment format _______indicates start of data.
  15. If user A wants to send an encrypted message to user B, the plaintext is encrypted with the public key…
  16. Which type of connector is used on 10Base2 networks?
  17. In FTP, to execute a file transfer, the user begins by _________.
  18. Transmission medias are classified into two main categories, which are -------------- and --------------------.
  19. 80 is the well-known port number for the HTTP service.
  20. Select the class C IP address from the following:
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  22. In ________ routing, the tunnel creates a bridge through areas that do not support multicast traffic.
  23. Which of the following protocol was developed to overcome limitations of Routing Information Protocol…
  24. The special address 'THIS HOST' is referred to as
  25. What is the default subnet mask for a class B network?
  26. Which directory service is used in Windows 2000 Server?
  27. Which Layer is Responsible for Congestion Control?
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  29. In the symmetric-key method of cryptography, which key is publicly known?
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