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