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  1. How many 64-Kbps channels are used on an ISDN BRI?
  2. Which Layer is Responsible for Congestion Control?
  3. ------------------- is/ are caused by the random motion of the electrons in a wire and is unavoidable.
  4. FTP servers by default listen on port ________ for incoming connections from FTP clients.
  5. What can be used in the place of DNS to resolve host names to IP addresses?
  6. Your network has gotten a single class C address but has 300 computers. How can you connect them to…
  7. 25 is used by SMTP
  8. How many 64-Kbps channels are used on an ISDN BRI?
  9. You've taken your Windows 2000 laptop to a client's network and plugged it in. Your computer is configured…
  10. What is the maximum length of thinnet cable before a signal booster is needed?
  11. What is the default port for Telnet?
  12. DSL stands for ------------------------
  13. What does a patch cable connect to within an Ethernet network?
  14. Which of the following protocols use a topology table to install routes into the IP routing table?
  15. Which of the following was initially designed as a video and audio compression standard?
  16. Which of the following filed represents the sender of the message in an electronic mail?
  17. 80 is the well-known port number for the HTTP service.
  18. What layer of the OSI protocol reference model does a bridge operate under?
  19. 80 is the well-known port number for the HTTP service.
  20. You are browsing www.microsoft.com on a machine named host.contoso.org.. What is the order of domain…
  21. What is the maximum length of twisted-pair cable before a signal booster is needed? Select all that…
  22. The key concern in the design of transmission system is -------------- and ---------------
  23. 127.0.0.1 address is reserved for internal loopback functions.
  24. Twisted-pair cable uses what type of connector?
  25. In which of the following states after selecting a mailbox, actions can be taken against the mail within…
  26. In Secure Electronic Transaction, the description of the purchase and cost is contained in ________…
  27. Which of the following protocols is not routable?
  28. Class C network address class supports 65,534 hosts.
  29. Which class of IP addressing was not brought in much use?
  30. ADSL uses high-speed Internet service phone lines