Synchronized versions of the collections in the Java Collections API allow ________ at a time to access a collection that might be shared among several threads.
a. any number of threads
b. only one thread
c. a maximum of two threads
d. None of the above.
b. only one thread
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Figure 9.8 shows an ER schema for a database that may be used to keep track of transport ships and their locations for maritime authorities. Map this schema into a relational schema, and specify all primary keys and foreign keys.
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Which of the following occurs when an attacker locates a web site vulnerability, thereby allowing the attacker to inject malicious code into the Web application?
A. XSS B. insecure direct object references C. memory leaks D. CSRF
Which comparison operator defines a condition with a list of two or more values for a field and includes records when the field matches one value from the list in the query results?
A. Like B. Between C. In D. Or