S A M P L E 

				  Quiz #11

Name ___________________   Honor Code________________________    Section _____

A. True/False?
(1) Light travels about one foot in a nano-second.

(2) Having no moving parts, vacuum tubes are more reliable than transistors.

(3) Integrated circuits have no heat problems in modern computers. 

(4) Relays allow low power, remote control of high power circuits.

(5) Integrated circuits can have over one million transistors on one chip.
  
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B.  Below are three examples of addressing in computer communications.
Draw a line connecting the type to the example.

  Ethernet Address  redstart.cs.duke.edu   

  Domain Address    152.3.140.145

  IP Address        b0:40:95:0f:2b:7a

C.  True/False?

1) Every Ethernet controller in a local area network has the same address

2) The telnet program is used to keep you from logging into remote computers

3) When using the Ethernet, you are secure from all electronic eavesdropping 

4) The IP layer of the TCP/IP software used for Internet communications
tries to make all networks look the same, regardless of underlying technology

5) Due to the layering of software, packets are carried within packets
(e.g. an IP packet is carried as data within an Ethernet packet)

6) The only purpose of anonymus ftp is to hide the identity of the requester

7) All access to information from a remote computer by way of the Internet
requires an account and a pssword for that remote computer

8) If a packet is found to be defective (using a checksum) the originating
host must send it again.

9) Communications packets are 100% efficient in that they contain only
data

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