- 1. The value of the 'acknowledgment' number field is equal to the client initial sequence number plus ?
A) 2 B) 3 C) 0 D) 1
- 2. ACK, SYN, and FIN (Ch. 4.2.4) are examples of 'control ?'
A) stops B) flags C) signals D) sessions
- 3. Which control flag in the segment header must be set to close a connection?
A) TCP B) SYN C) ACK D) FIN
- 4. In 'expectational acknowledgment,' the source is told to send the next byte in its
A) data base B) hard disk C) session D) data bank
- 5. The amount of data that a source can transmit before an acknowledgment must be received is called the:
A) window TCP header B) window registry C) window size D) window manager
- 6. Flow Control assists the reliability of TCP transmission by adjusting the effective rate of data flow between the two services in the:
A) hard disk B) data bank C) data base D) session
- 7. The initial window size is determined during the session startup via what type of 'handshake'?
A) 3 way B) 3 node C) 3 tiered D) 3 pathways
- 8. In 'dynamic window sizing' (chapter 4.3.4), the control of data flow is implemented in order to minimize what?
A) multiplexing B) segmentation C) segment loss D) multi-tasking
- 9. DNS, SNMP, DHCP, RIP, TFTP, and On-line games are protocols that use (ch. 4.4.1)?
A) Telnet B) TCP C) UDP D) DNS
- 10. Whereas TCP is 'connection-oriented,' UDP is said to be (ch. 4.4.2) ?
A) transaction-focused B) transaction-minded C) transaction-based D) transaction-centered
- 11. Like TCP, UDP-based server applications must be assigned Well Known or Registered Port ?
A) IP addresses B) services C) sockets D) numbers
- 12. What does the D in UDP stand for?
A) database B) datagram C) datacenter D) datafull
- 13. Port Numbers are included in TCP headers of a segment to enable the receiving host to forward the data to the appropriate ?
A) end device B) data base C) fiber node D) application
- 14. Which OSI model layer is responsible for regulating the flow of information from source to destination, reliably, and accurately?
A) application B) transport C) presentation D) session
- 15. Flow Control is used in TCP data transfer to prevent the receiver from being ?
A) supersized B) augmented C) overwhelmed D) automated
- 16. Layer 4 addressing identifies the communicating applications and the multiple conversations between the ?
A) networks B) devices C) media D) hosts
- 17. When forwarding data, the source host dynamically selects a:
A) source port B) logical address C) gateway address D) routing address
- 18. UDP is both connectionless and has a low ?
A) margin of error B) overhead C) flow of control D) transmission rate
- 19. What mechanism is used by TCP to provide flow control as segments travel from source to destination?
A) acknowledgments B) window sizing C) session establisment D) sequence numbering
- 20. UDP may sometimes be preferred over TCP due to its minimal delays in data ?
A) delivery B) deposits C) reassembling D) drops
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