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What is attenuation?

A. cable noise

B. cable shortage

C. loss of signal strength

D. unwanted signals on the network

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  1. FDDI operates on 100 Mbps.
  2. A router receives an IP packet with source IP address 130.45.3.3 and destination IP address 202.23.4.16.…
  3. Which of the following is currently a de facto standard, commonly used for point-to-point serial connections…
  4. What is the pattern of a preamble?
  5. What is the default subnet mask for a class A network?
  6. 25 is used by SMTP
  7. Which of the following can support many concurrent B-channel links and one 64 Kbps Dchannel?
  8. …………………… have a single communication channel that is…
  9. What can be used in the place of DNS to resolve host names to IP addresses?
  10. You've taken your Windows 2000 laptop to a client's network and plugged it in. Your computer is configured…
  11. What is the maximum frame size of a frame relay?
  12. Which of the following fields holds the packets of several protocols?
  13. 80 is the well-known port number for the HTTP service.
  14. This mapping of name to IP address is done by …………………………….
  15. How many table entries are supported by global routing table in CIDR?
  16. Which of these is an example for unguided transmission?
  17. Twisted-pair cable uses what type of connector?
  18. You have a network card with the connector in question 43, and it also has a 15 pin female connector,…
  19. Which of the following can be used to transfer files from a Unix server?
  20. Which layer of the OSI model does a switch operate in?
  21. What are the subnet mask in dotted decimal notation for /20 networks?
  22. What can be used in the place of DNS to resolve host names to IP addresses?
  23. In an autonomous system with n areas, how many areas are connected to the backbone?
  24. Pure ALOHA has a maximum throughput of -----------
  25. _______ body looks after the protocol identifiers used over Internet.
  26. Which class does the IP address 202.119.22.31 belong to?
  27. To communicate across a TCP/IP network, you must have a DNS server and DNS clients installed.
  28. Which of the following network topologies has the highest level of redundancy?
  29. FTP servers by default listen on port ________ for incoming connections from FTP clients.
  30. Which of the following is also known as IP masquerading?