Exam Number/Code: 1D0-441
Exam Name: CIW DATABASE SPECIALIST
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Question: 1
Under JDBC, you can move the cursor within the resultset to a particular specified row using
which of the following methods?
A. absolute
B. jump
C. goto
D. moveto
E. nextset
Answer: A
Explanation:
According to the online Java tutorial provided by Sun at java.sun.com: You can move the cursor
to a particular row in a ResultSet object. The methods first, last, beforeFirst, and afterLast move
the cursor to the position their names indicate. The method absolute will move the cursor to the
row number indicated in the argument passed to it. If the number is positive, the cursor moves the
given number from the beginning, so calling absolute(1. puts the cursor on the first row. If the
number is negative, the cursor moves the given number from the end, so calling absolute(-1. puts
the cursor on the last row.
Question: 2
You are the database specialist of your company. You are managing the in-house database
systems. With JDBC, you want to make updates to a ResultSet object. To do so, what must you
supply to the ResultSet object?
A. CONCUR_UPDATABLE
B. UPDATABLE
C. CONCUR
D. CONCUR_RESULT
E. RESULT_UPDATABLE
Answer: A
Explanation:
According to the online Java tutorial provided by Sun at java.sun.com: Before you can make
updates to a ResultSet object, you need to create one that is updatable. In order to do this, you
supply the ResultSet constant CONCUR_UPDATABLE to the createStatement method. The
Statement object that is created will produce an updatable ResultSet object each time it executes
a query.
Question: 3
Under JDBC, what object represents the DBMS that supplies you with all the company SALES
data?
A. DataSource
B. FileSource
C. DSN
D. ResultSource
E. DataOrigin
Answer: A
According to the online Java tutorial provided by Sun at java.sun.com: A DataSource object
represents a particular DBMS or some other data source, such as a file. If a company uses more
than one data source, it will deploy a separate DataSource object for each of them. A DataSource
object may be implemented in three different ways:
A basic DataSource implementation-produces standard Connection objects that are not pooled or
used in a distributed transaction
A DataSource class that supports connection pooling-produces Connection objects that
participate in connection pooling, that is, connections that can be recycled
A DataSource class that supports distributed transactions-produces Connection objects that can
be used in a distributed transaction, that is, a transaction that accesses two or more DBMS
servers
Question: 4
In JDBC, what class allows the use of HTTP to talk to a Java servlet that provides data access?
A. A CachedRowSet class
B. A JDBCRowSet class
C. A WebRowSet class
D. A JavaSource class
E. A HTTPRowSet class
F. A JavaDb class
Answer: C
Explanation:
According to the online Java tutorial provided by Sun at java.sun.com: Although anyone can
implement a rowset, most implementations will probably be provided by vendors offering RowSet
classes designed for fairly specific purposes. To make writing an implementation easier, the
JavaTM Software division of Sun Microsystems, Inc., plans to provide reference implementations
for three different styles of rowsets in the future. The following list of planned implementations
gives you an idea of some of the possibilities.
A CachedRowSet class-a disconnected rowset that caches its data in memory; not suitable for
very large data sets, but an ideal way to provide thin Java clients, such as a Personal Digital
Assistant (PDA. or Network Computer (NC., with tabular data
A JDBCRowSet class-a connected rowset that serves mainly as a thin wrapper around a
ResultSet object to make a JDBC driver look like a JavaBeans component
A WebRowSet class-a connected rowset that uses the HTTP protocol internally to talk to a Java
servlet that provides data access; used to make it possible for thin web clients to retrieve and
possibly update a set of rows
Question: 5
To properly handle SQLException under JDBC, you must use:
A. a try/catch block
B. a Exception pointer
C. the Err object
D. the error table
E. the master error dictionary
Answer: A

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