21.8 Java4570r-review  (Page 11/2)

Table of contents

• Preface
• Questions
  • 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13
• Answers
• Miscellaneous

Preface

This module is one in a collection of modules designed for teaching INEW 2338 Advanced Java (Web) at Austin Community College in Austin, TX.

This module contains review questions and answers keyed to the module titled Java4570: Session Tracking using Cookies in the Servlets sub-collection.

Once you study that module, you should be able to answer the review questions in this module.

The questions and the answers in this module are connected by hyperlinks to make it easy for you to navigate from the question to the answer and back again.

Questions

Question 1

True or False?

Cookies are information that is created by a web application and stored on the HTTP server. Under certain conditions, this information isretrieved and used by the HTTP server whenever a request is sent from the client to the server.

Go to answer 1

Question 2

True or False?

Cookies are widely used by various server-side programming techniques for session tracking. Java provides classes and methods designed to allow you to usecookies in your servlets.

Go to answer 2

Question 3

True or False?

Any HTTP server can obtain cookies from a browser regardless of the server that created the cookie.

Go to answer 3

Question 4

True or False?

By default, a cookie expires 24 hours after it is created.

Go to answer 4

Question 5

True or False?

The setMaxAge method can be called to override the default and specify the maximum age of a cookie in minutes. The cookie will expire whenthe maximum age has been reached.

Go to answer 5

Question 6

True or False?

The setMaxAge method can be called to override the default and specify the maximum age of a cookie in seconds. The parameter to the setMaxAge method is an int so the maximum age of a cookie can be years.

Go to answer 6

Question 7

True or False?

The setComment method can be used to provide a comment with the cookie. The browser may elect to make this information available to theuser.

Go to answer 7

Question 8

True or False?

The constructor sets the name and value of a cookie when the Cookie object is instantiated. The setValue method can be used to assign a new value to the cookie after it is instantiated.

Go to answer 8

Question 9

True or False?

The JavaCookie class represents a cookie that can be used for session management with the HTTP protocol.

Go to answer 9

Question 10

True or False?

Each cookie has a name and a single value (a name::value pair) . It may have optional attributes, including:

• A comment
• Path and domain qualifiers to specify which hosts can see the cookie
• AA maximum age
• A version.

Go to answer 10

Question 11

True or False?

Servers assign cookies, using fields added to HTTP response headers. In the Java API, cookies are saved one at a time into HTTP response headers,using the addCookie method.