Trắc Nghiệm Ôn Tập JSP / Servlet

Question 1

Which of the following is an advantage of Web applications mentioned in the document?

Accepted Answer

Platform independence

Question 2

Which protocol offers 'Reduced Lag' and 'Stronger Security' compared to its predecessors?

Answer

HTTP/1.0

Answer

HTTP/1.1

Answer

HTTP/2

Question 3

What is the primary role of a Web container in a Java Web application?

Question 4

In the Web application workflow, which component processes the request and generates the response?

Question 5

Which file extension is used to package Java Web applications for deployment?

Question 6

Which HTTP method is typically used to retrieve data from a server?

Question 7

What was the previous name of the Jakarta EE platform?

Question 8

Which Jakarta EE profile contains Core, Web services, plus Mail and Messaging?

Question 9

What is a disadvantage of using Jakarta EE for small applications?

Question 10

Which Apache Tomcat responsibility involves executing and unloading servlet classes?

Question 11

Which directory in a Web application structure contains the 'web.xml' file?

Question 12

Which servlet lifecycle method is called exactly once when the servlet is first loaded?

Question 13

Which HTTP status code indicates 'Resource not found'?

Question 14

Which technique for session tracking involves adding data to the end of a URL?

Question 15

What is the purpose of the 'invalidate()' method in HttpSession?

Question 16

Which JSP element is used to embed Java code within HTML?

Question 17

Why do servlets generally run faster than JSP pages during initial execution?

Question 18

Which JSP directive is used to insert content of another resource at runtime?

Question 19

What is a 'filter chain' in Jakarta Servlets?

Question 20

Which technology is an ORM that persists entities in a database?

Question 21

What is the main advantage of the DAO pattern?

Question 22

In asynchronous processing, what happens to a servlet thread waiting for a resource?

Question 23

Which JSP implicit object represents the output stream sent to the client?

Question 24

In the MVC architecture, which component typically acts as the controller?

Question 25

Which operator is used in JSP EL to access the value of a variable?

Accepted Answer

Dot operator (.)

Question 26

What does the 'isThreadSafe' option in a JSP page identify?

Question 27

Which HTTP method is used to update an existing resource?

Question 28

What is the primary technology used for communication on the Web?

Accepted Answer

HTML and HTTP

Question 29

Which component manages mapping URLs to specific servlets?

Question 30

The Microservices architecture is characterized as being:

Question 31

Which Jakarta EE profile is tailored for Web application services?

Question 32

Which IDE is frequently used for Java, Ruby, and Python development?

Question 33

What is the default port for Apache Tomcat mentioned in the guide?

Question 34

What is the primary function of the 'web.xml' file?

Question 35

Which package contains classes for HTTP-specific servlets?

Question 36

Which method retrieves a specific initialization parameter for a servlet?

Question 37

What does HTTP status code 500 indicate?

Question 38

How are 'Hidden Form Fields' implemented in HTML?

Question 39

What is a 'Cookie' in web development?

Question 40

Which setting prevents cookie access by client-side scripts?

Question 41

What does JSON stand for?

Question 42

Which JSP phase converts the page into a Servlet?

Question 43

A 'scriptlet' in JSP contains:

Question 44

Which JSP directive links the page to custom tags?

Question 45

Which component intercepts requests between client and servlet?

Question 46

What is an 'annotation' in Servlet API?

Question 47

Which annotation is used for file upload configuration?

Question 48

What does JDBC stand for?

Question 49

In JPA, a persistent object (POJO) is called an:

Question 50

Which mechanism uses XMLHttpRequest for asynchronous updates?

Question 51

What is a key difference between HTTP 1.0 and 1.1?

Question 52

Which JSP implicit object provides access to all others?

Accepted Answer

pageContext

Question 53

In MVC, which component handles presentation?

Question 54

JSP Model II is an implementation of which pattern?

Question 55

Which EL operator represents logical 'AND'?

Question 56

What is the purpose of a TLD file?

Question 57

Which method sets an attribute in application scope?

Question 58

What does 'beginRequest()' do in JDBC 4.3?

Question 59

Which interface supports asynchronous processing in Servlets?

Accepted Answer

AsyncContext

Question 60

What information does a Response Header typically contain?

Question 61

Which corporation managed Java EE after Sun Microsystems?

Question 62

The Jakarta EE Web Profile is intended for:

Question 63

Eclipse IDE feature for annual updates and plug-ins is:

Question 64

The 'lib' folder in a WAR file is used to store: