Information Technology Reference
In-Depth Information
4.
Suppose a user is editing a file using remote file access and the
file server crashes, but the client computer continues to run.
To what extent could the user continue to edit the file—per
haps saving the result when the file server is rebooted?
5.
Much of the success of the Internet relies upon standards and
agreements so that all interested parties follow the same con
ventions. The Internet Society is a key part of this process.
The Internet Society is composed of professional members,
both individuals and organizations.
a.
Look up information about the Internet Society on the
World Wide Web to identify its various roles.
b.
Identify at least six groups that the Internet Society works
with to help set standards. In each case, indicate the spe
cific role of the group and how that group helps coordinate
activities on the Internet.
■
Exercises
1. a.
In reviewing the words and phrases from “Terminology
from This Chapter,” some terms relate to highlevel con
cepts or applications, some relate to lowlevel communica
tion issues, and some involve ideas at an intermediate level
between concepts and details. Organize the terms into 3 or
more levels from highlevel concepts down to lowlevel
technical matters.
b.
Explain your categorization of terms in part a.
c.
Provide careful definitions for each word or phrase.
2.
Chapter 3 discusses the principle of locality and describes
how it is applied to the effectiveness of cache memory and
virtual memory. Discuss how the principle of locality might
impact the generation of network traffic in remote file access:
a.
When the file is being read only
b.
When the file is read and then modified
For example, would the principle of locality tend to increase
network traffic, decrease network traffic, or have no effect?
3.
When editing a remote file, this chapter discusses three ap
proaches to address the cachecoherence problem: write
through, writeonclose, and writedelayed. Suppose a user is
