Study Guide Data Comm

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Quizzes 1-4 with Answers
Quiz 1
_____1. A local area network is:

a) a large central network that connects other networks in a distance spanning exactly 5 miles. b) a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information. c) a network spanning a geographical area that usually encompasses a city or county area (3 to 30 miles). d) a network spanning a large geographical area (up to 1000s of miles). e) a network spanning exactly 10 miles with common carrier circuits.

_____2. A backbone network is:

f) a high speed central network that connects other networks g) a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information. h) a network spanning a geographical area that usually encompasses a city or county area (3 to 30 miles). i) a network spanning a large geographical area (up to 1000s of miles). j) a network spanning exactly 200 miles with common carrier circuits.

_____3. Which of the following would be a standard used at the Data Link layer of the Internet or OSI model?

k) IP
l) TCP
m) Ethernet
n) HTTP
o) FTP

_____4. In which layer of the Internet model would the HTTP standard be used?

p) physical
q) application
r) transport
s) network
t) data link

_____5. The network layer of the Internet model uses the _____________ protocol to route messages though the network.

u) TCP
v) HTTP
w) FTP
x) SMTP
y) IP

_____6. The primary reason for networking standards is to:

z) simplify cost accounting for networks
{) ensure that hardware and software produced by different vendors can work together |) make it more difficult to develop hardware and software that link different networks }) ensure that all network components of a particular network can be provided by only one vendor ~) lock customers into buying network components from one vendor

_____7. (True/False) The network layer is responsible for routing messages from the source computer to the destination computer.

_____8. (True/False) Due to recent advances in high speed communication networks, the information lag, or the time it takes for information to be disseminated around the world, has been significantly shortened.

_____9. (True/False) A local area network (LAN) connects other LANs and BNs located in different areas to each other and to wide area networks in a span from 3 to 30 miles.

_____10. (True/False) The application layer is the 5th layer of the Internet model and provides the end user’s access to the network.

Quiz 2
1. Which of the following is not true a dumb terminal:

a. it has a monitor, keyboard and no CPU
b. all the processing takes place on the host computer.
c. it does not participate in the processing of the data it displays d. you can install your latest application software on it.
e. it is basically an input/output device.

2. Which of the following is not a general function by any application program?

a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage

3. ___________, or the algorithms or business logic programmed into the application, can be simple or complex depending on the application.

a. data storage
b. data access logic
c. application logic
d. presentation logic
e. application access storage

4. With a client-based network, one fundamental problem is that:

a. the clients each must store all the data
b. the server does not have any data storage capability
c. the host or server must perform presentation logic, application logic,...
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