INF111 Information Systems Theory

Review for Third Quiz

1. What do the terms volatile and non-volatile mean?
   
   
2. What is the size and storage capacity of the most commonly used floppy disk? What "density" rating is it called?
   
   
3. What is a track? What are the two definitions for sector? What is a cluster?
   
   
4. What material are the disks of floppy disks made of? What is the magnetic coating made of?

   
   

5. What happens when you format a new, never-been-used floppy disk? What happens when you format a disk that has been used?
   
   
6. What is the write-protect window on a floppy disk for?
   
   
7. According to your text, what are some ways to damage a floppy disk?
   
   
8. How much storage space should you expect to find on a floppy disk? How much storage space should you expect to find on a hard disk?
   
   
9. How can a hard drive become fragmented? What does it mean? How can you defragment it?
   
   
10. Why do you make backups of disks?
    
    
11. What do the words pit and land mean in relation to a CD?
    
    
12. How much data can the average CD hold? How much data can the average DVD hold?
    
    
13. What is the difference between a CD-R drive and a CD-RW drive?
    
    
14. Why is access to records on a tape slower than access to records on a hard drive?
    
    
15. What does it mean to mirror a hard drive?
    
    
16. What are three common cable media used to connect computers in a network?
    
    
17. What are the two kinds of microwave communications systems?
    
    
18. What is a geosynchronous satellite?
    
    
19. What is the difference between a point-to-point connection and a multipoint connection?
    
    
20. What is a simplex connection? What is a half-duplex connection? What is a full-duplex connection?
    
    
21. What is a NIC used for?
    
    
22. What is the difference between these:
    • LAN
    • MAN
    • WAN
      
      
23. What is a client in a computer network? What is a server? What is a peer?
    
    
24. Describe a star network.
    
    
25. Describe a bus network.
    
    
26. Describe a ring network.
    
    
27. How do stations deal with signal collision on an Ethernet?
    
    
28. How do stations tell whose turn it is to transmit on a Token Ring network?