Java程序辅导
C C++ Java Python Processing编程在线培训 程序编写 软件开发 视频讲解
C C++ Java Python Processing编程在线培训 程序编写 软件开发 视频讲解
LIBRARY USE
LA TROBE UNIVERSITY
SEMESTER TWO EXAMINATION PERIOD
2011
Student ID: Seat Number:
Unit Code: CSE3WS Paper No: P1
Unit Name: Web Services
Paper Name: Final Examination 2011
Reading Time: 15 minutes
Writing Time: 3 hours
No. of Pages (including cover sheet): 10
OFFICE USE ONLY (FACULTY/SCHOOL STAFF):
CAMPUS AW BE BU MI
SH
ALLOWABLE MATERIALS
Number Description
92 Students may make notes during reading time (not on script books or multiple choice answer sheets).
INSTRUCTIONS TO CANDIDATES
1. This paper contains five (5) questions. Candidates should attempt all questions.
2. Marks for this paper total 100.
3. All questions have equal marks
4. Seventy percent (70%) of the final assessment for this subject will be based on this examination
paper.
This paper MAY NOT BE REMOVED from the examination venue
Question 1 – XML Syntax and Basics
(a) Describe briefly what it means to say that an XML document is well formed and valid.
(b) Rewrite and correct the syntax errors for the following xml document:
1
2
3 Local weather observations
4
5
6 Wepple North
7 36.03140.00
9
10
11
12
13
14 9.3
15 18.5
16
18
19
20 12.2
21 23.7
22 12
23
24
25
(c) Expand the acronyms URL and URN, and briefly describe what they are used for in XML.
(d) XML documents may contain processing instructions, elements and attributes.
(i) What are processing instructions used for?
(ii) What is the difference between an element and an attribute?
(e) Create a suitable XML document (XML only – a DTD not required) to store data for the
following problem
An XML document is required to hold details for all members in a tennis club.
The following information is required for each member of the club:
name, date of birth, phone number and
next of kin details (name and phone number).
Membership type – full, concession or life membership.
Role (one of president, secretary, treasurer or ordinary member).
The number of games won and games lost.
Choose suitable names for the elements involved, and ensure that at least one piece of
information is encoded as an attribute.
(2 + 6 + 4 + 2 + 6 = 20 Marks)
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 3 of 10
Question 2 – DTDs, Schema and Validation
(a) Consider the following Document Type Description (DTD) and use it to answer the questions in
this question sub-section:
1
2
3
5
6
7
8
9
10
11
12
13
18
(i) What is the meaning of the ? character in line 4?
(ii) What is the meaning of the comma ' , ' character between the names given in line 4?
(iii) What is the meaning of the #IMPLIED keyword in the line 15?
(iv) What values can the status attribute of vehicle take?
(v) If the status attribute is omitted in the XML document what will the XML parser do?
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 4 of 10
(b) The DTD from part (a) has been converted to the following XML Schema. Examine it carefully
and use it to answer this question sub-section.
This question continues on the next page…
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 5 of 10
Question 2 – DTDs, Schema and Validation part b (continued)
(i) What is the purpose of the attribute, xmlns:xsd="http://www.w3.org/2001/XMLSchema"
in the schema element declaration?
(ii) Identify the element declaration and the specific attributes that allow an element to occur
multiple times.
(iii) What is the effect of setting default="new" in the element declaration for vehicle attribute
"status"?
(iv) The above Schema is used to validate the following XML instance document and multiple
errors are reported. Identify those errors and explain why they have occurred.
1
2
3
6
7
8
9 abc-596-P
10 2007
11 Toyota
12 Camry
13 225034.6
14 Good condition
17
18
19 A-M-3-Z
20 2010
21 Holden
22 Commodore
23 7130
24
25
( (2 + 2 + 2 + 1+ 1) + (2 + 2 + 2 + 6) = 20 Marks)
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 6 of 10
Question 3 – XPath and XSLT
(a) Consider the following XML and XSLT documents:
XML file (airports.xml) XSLT file (airports.xsl)
Bendigo
YBDG
36.74
144.33
705
Birdsville
YBDV
25.897
139.348
157
Canberra
YSCB
35.306
149.195
1886
Sydney INTL
YSSY
33.947
151.177
21
Airport Report
total =
Latitude: S
Longitude: E
(i) Show the html code that would result from applying the given XSLT stylesheet
(airports.xsl) to the XML document airports.xml.
(ii) Show the changes to the XSLT file so that it generates output for airports whose elevation
(elev element) is numerically less than 500, by displaying the name of the airport and its
airport code value.
DO NOT write out the entire XSL file, just supply the changes and additions to the code.
(iii) Using XSLT elements code a template to produce a list of airport names for airport
elements that have the international attribute set to "true".
This question continues on the next page…
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 7 of 10
Question 3 – XPath and XSLT cont…
(b) For the following Xpath expressions explain in your own words the meaning of the xpath
expression and its parts and their effect:
(i) "//booking[ number(substring(start,1,2)) > 9)]"
(ii) "//booking[ start='09:00:00' or (schedule/day='Mon' and @type='lab') ]"
(c) For the following XML instance document draw its tree structure showing the element nodes
only.
BGO32WP
Web Programming
Wed
17:00:00
BUS228
BGO21JP
Java Programming
Mon
11:00:00
BUS111
((4 + 4 + 4) + (3 + 3) + 2 = 20 Marks)
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 8 of 10
Question 4 – XML Technologies and Web Services
(a) Describe what is meant by "Web Services" by providing a brief technical definition for Web
Services, that is, identify the major XML based technologies which implement Web Services
and briefly explain their role.
(b) In order to consume a Web Service, what pieces of information about the service does the client
need to know to use the service and where are they published?
(c) Briefly outline the structure of a SOAP envelope and identify what each part is used for.
(d) Explain how XML Schema is used to solve the problem of exchanging data between different
applications written in different programming languages and running on different computer
platforms.
(e) Clearly describe at least two (2) major differences between the way that DOM-based parsers and
SAX-based parsers are implemented in JAXB.
(f) The “name” element is used for two purposes in the following XML code fragment. Rewrite the
code to use name spaces to differentiate between the “name” elements. Your answer must
demonstrate how to map name space prefixes to unique name spaces.
joe
smith
joe@ironbark.com.au
54441234
Introduction to Java
Programming Web Services
XML Basics
(3 + 4 + 3 + 3 + 2 + 5 = 20 Marks)
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 9 of 10
Question 5 – Web Service XML Technologies
This question refers to a Schema given below and a WSDL document on the following page. Please
study both carefully before attempting your answer to this question.
(a) For the Schema document webservices.xsd
(i) Describe the relationship of the defined elements to each other (give both names and
types).
(ii) Is it mandatory for the errormessage element to be present?
(b) For the WSDL document webservices.wsdl
(i) Briefly explain the purpose of each child (sub-element) of the root
element
(ii) How is the Schema incorporated into this document and what is its purpose?
(iii) What is the name of the Web Service defined by this WSDL document?
(iv) Which transport protocol is used by this Web Service?
(v) What messaging protocol is used by this Web Service?
(vi) What is the URI for the access point to this Web Service?
(vii) Identify the method(s), their parameter(s) (give both names and types) and return type.
(viii) Briefly explain the purpose of
This question continues on the next page…
Web Services (CSE3WS) Final Examination, Semester 2, 2011
Page 10 of 10
Question 5 – Web Service XML Technologies cont…
webservices.wsdl
( (2 + 2) + (5 + 2 + 1 + 1 + 1 + 2 + 2 + 2) = 20 Marks)