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________allows receiver to inform sender about the successful receiving of all the
segments.

A. SACK-permitted Option

B. Window scale option

C. Selective Acknowledgment (SACK)

D. Maximum segment size option

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  1. Which directory service is used in Windows 2000 Server?
  2. 127.0.0.1 address is reserved for internal loopback functions.
  3. A financial institution that issues the card to the purchaser is ________.
  4. Network administrator checks whether all the devices connected to the end-to-end path are _________-enabled.
  5. Select the class C IP address from the following:
  6. Which of the following is used for testing the data-link connection in a PPP network?
  7. Internet Research Task Force (IRTF) body looks after ________.
  8. What is the address identified when socket is available at each end of TCP?
  9. Where are routing tables placed?
  10. In 1996, 36.44% of _________ addresses were brought in use.
  11. TCP protocol is responsible for connection-oriented communication
  12. 127.0.0.1 address is reserved for internal loopback functions.
  13. BGP is .routing protocol used to .routing table.
  14. If the organization allocates 10 bits as subnet number, to identify a physical network, then the organization…
  15. Which of the following is used for establishing, configuring, and testing the data-link Link Control…
  16. How many 64-Kbps channels are used on an ISDN BRI?
  17. UDP datagram has a header, which is of ________.
  18. A modem is a card within a PC that converts the ... the computer produces to .. that can pass over telephone…
  19. Which of the following protocols are considered unreliable or connectionless?
  20. What is the default subnet mask for a class A network?
  21. To communicate across a TCP/IP network, you must have a DNS server and DNS clients installed.
  22. Which class does the IP address 202.119.22.31 belong to?
  23. DSL stands for ------------------------
  24. In the symmetric-key method of cryptography, which key is publicly known?
  25. What is the default subnet mask for a class B network?
  26. What are the subnet mask in dotted decimal notation for /20 networks?
  27. Twisted-pair cable uses what type of connector?
  28. FDDI operates on 100 Mbps.
  29. Which of the following protocols is described in RFC 793?
  30. Which is the port used by POP3?