CS311 Final Term Subjective Set 2 by Muhammad Ayaz

Cs311 introduction to web services · Final term file · Question with Answer

Q1. JAXP stands for?

Answer: Answer: Java API for XML Processing.

Q2. XSLT stands for?

Answer: Answer: Extensible Stylesheet Language Transformations.

Q3. Working of plugability layer?

Answer: Answer: Plugability layer enables components to be replaced or extended without modifying the system's core functionality.

Q4. SAX stands for?

Answer: Answer: Simple API for XML.

Q5. Name of libraries used by API?

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Q6. Why is SAX preferred over DOM?

Answer: SAX is preferred over DOM for large XML documents or memoryconstrained environments due to its event-driven parsing approach.

Q7. Difference between SAX and DOM?

Answer: SAX is event-driven and reads XML sequentially without building a full in-memory representation, while DOM builds a complete in-memory representation of the XML document.

Q8. Marshaling or Unmarshaling?

Answer: Marshaling refers to converting Java objects into XML data, while unmarshaling refers to converting XML data into Java objects.

Q1. Why do we use Java JDBC?

Answer: We use Java JDBC (Java Database Connectivity) to connect and interact with relational databases from Java programs. It provides a standard API for database access, allowing Java applications to execute SQL queries, retrieve and manipulate data.

Q2. What is the connection interface?

Answer: The Connection interface in JDBC represents a connection to a database. It allows Java programs to establish a connection to a specific database and provides methods for executing SQL statements and managing transactions.

Q3. Types of JDBC drivers and advantages/disadvantages of them?

Answer: There are four types of JDBC drivers:

Type 1: JDBC-ODBC Bridge Driver

Type 2: Native-API Driver

Type 3: Network Protocol Driver

Type 4: Thin Driver

Advantages and disadvantages vary based on factors like performance, portability, and dependency on external libraries.

Q4. What is an API?

Answer: An API (Application Programming Interface) is a set of rules, protocols, and tools that allows different software applications to communicate with each other. It defines the methods and data formats that programs can use to request and exchange information.

Q5. Describe the DriverManager class.

Answer: The DriverManager class in JDBC is responsible for managing a list of database drivers. It provides methods to register and deregister drivers, establish database connections, and obtain instances of Connection objects.