Chapter 12-14 Vocabulary & Questions

Vocabulary

Best-effort delivery

ES (end system)

Flow control

Full duplex

TCP (Transmission Control Protocol)

Transport Layer

UDP (User Datagram Protocol)

Window size

Collision

Protocol

Session

Session Layer

TWS (two-way simultaneous)

ASCII (American Standard Code for Information Interchange)

Compression

EBCDIC (Extended Binary Coded Decimal Interchange Code)

Encryption

Presentation Layer

Questions

1. What type of numbers are used to keep track of different conversations that cross the network at the same time?

2. What is the name of a protocol that combines connectionless and connection-oriented service?

3. What is the difference between TCP and UDP?

4. What is the field in a TCP segment that ensures correct sequencing of the arriving data?

5. What are the protocols that use UDP?

6. What range of port numbers is reserved for public applications?

7. What type of a window refers to the fact that the window size is negotiated dynamically during the TCP session?

8. Which of the following are Layer 5 protocols?

a. (NFS) Network File System

b. (SQL) Structured Query Language

c. (RPC) Remote Procedure Call

d. X-Window System

e. (ASP) AppleTalk Session Protocol

f. DNA (Digital Network Architecture)

g. SCP (Session Control Protocol)

9. In a session, checkpoints used for what?

10. What is a dialogue separation?

11. When in a session layer, what are the responsibilities of both hosts when sending a message?

12. What type of two-way communication is the session layer most involved in?

13. What is the responsibility of the session layer?

14. When computers communicate with each other, what is the dialogue process called that determines which computer takes on the role of the client and which takes on the role of the server?

15. What are the three functions of the presentation layer?

16. At the receiving station, from which layer does the presentation layer get data?

17. What types of computers most often use EBCDIC?

18. What is a .JPEG?

19. In the presentation layer, what does the algorithm search for to help shrink the size of a file?

20. What type of program uses binary files?

21. What are the two file formats used by the Internet to display images?

22. What type of file format is used as a set of directions for displaying a page on a Web browser?