MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 765 Mcqs, each offering curated multiple-choice questions to sharpen your Placement Tests knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
Which class is thread-safe i.e. multiple threads cannot access it simultaneously,So it is safe and will result in an order? |
| A. | StringBuffer class |
| B. | StringBuilder class |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. StringBuilder class | |
| 302. |
Hibernate caching improves the performance of the application by pooling the object in the cache. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 303. |
Which pattern is the struts framework based? |
| A. | MVC2 Pattern |
| B. | Bridge Pattern |
| C. | MVC 1 Pattern |
| D. | None of the above |
| Answer» B. Bridge Pattern | |
| 304. |
JMS is also known as a messaging service. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 305. |
Which program obtains a remote reference to one or more remote objects on a server and then invokes methods on them in an RMI application? |
| A. | Server |
| B. | Client |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 306. |
XML stands for? |
| A. | Extensible Markup Language |
| B. | Extended Mashup Language |
| C. | Extensible Mashup Language |
| D. | X-Markup Language |
| Answer» B. Extended Mashup Language | |
| 307. |
Which is used about text data that should not be parsed by the XML parser? |
| A. | CDATA |
| B. | PCDATA |
| C. | None of the above |
| D. | Both A & B |
| Answer» B. PCDATA | |
| 308. |
Which class automatically flushes the data so that there is no need to call the flush() method. Moreover, its methods don't throw IOException? |
| A. | Console class |
| B. | Scanner Class |
| C. | FileInputStream class |
| D. | PrintStream class |
| Answer» E. | |
| 309. |
Which is a superclass of all exception classes? |
| A. | Throwable |
| B. | Exception |
| C. | RuntimeException |
| D. | IOException |
| Answer» B. Exception | |
| 310. |
Multiple inheritances is not supported in case of class but it is supported in case of interface. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 311. |
Which technology do we mix our business logic with the presentation logic? |
| A. | Servlet |
| B. | JSP |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. JSP | |
| 312. |
Which objects are used by RMI for communicating with the remote object? |
| A. | Stub |
| B. | Skeleton |
| C. | Both A & B |
| D. | None of the above |
| Answer» D. None of the above | |
| 313. |
Which action tags are used in JSP for developing web application with Java Bean? |
| A. | jsp:useBean |
| B. | jsp:setProperty |
| C. | jsp:getProperty |
| D. | Both B & C |
| Answer» E. | |
| 314. |
Which allows hyperlinks to point to specific parts (fragments) of XML documents? |
| A. | XPath |
| B. | XSLT |
| C. | XLink |
| D. | Xpointer |
| Answer» E. | |
| 315. |
Which method is used for an SQL statement that is executed frequently? |
| A. | prepareStatement |
| B. | prepareCall |
| C. | createStatement |
| D. | None of the above |
| Answer» B. prepareCall | |
| 316. |
Applet runs inside the browser and does not works at client side. |
| A. | True |
| B. | False |
| Answer» C. | |
| 317. |
Which is a special type of program that is embedded in the webpage to generate the dynamic content? |
| A. | Package |
| B. | Applet |
| C. | Browser |
| D. | None of the above |
| Answer» C. Browser | |
| 318. |
Both threads are waiting for each other to release the lock, the condition is called deadlock. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 319. |
Which state is the thread still alive, but is currently not eligible to run? |
| A. | Non-Runnable |
| B. | Terminated |
| C. | Runnable |
| D. | Running |
| Answer» B. Terminated | |
| 320. |
Under which package is the string class encapsulated? |
| A. | java.lang |
| B. | java.util |
| C. | java.io |
| D. | java.awt |
| Answer» B. java.util | |
| 321. |
How many ways are there to access package from another package? |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | 5 |
| Answer» B. 2 | |
| 322. |
How many types of controls does AWT support? |
| A. | 7 |
| B. | 6 |
| C. | 5 |
| D. | 8 |
| Answer» B. 6 | |
| 323. |
Which keyword is used for the block to handle the exceptions generated by try block? |
| A. | Catch |
| B. | Final |
| C. | throw |
| D. | try |
| Answer» B. Final | |
| 324. |
Where does the primitive data type values be stored? |
| A. | Heap Memory |
| B. | Stack Memory |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 325. |
URL is an acronym for? |
| A. | Uniform Resource Locator |
| B. | Unified Resource Locator |
| C. | Uniform Restore Locator |
| D. | Unified Restore Locator |
| Answer» B. Unified Resource Locator | |
| 326. |
Which language is case sensitive? |
| A. | HTML |
| B. | XML |
| C. | Both A & B |
| D. | None of the above |
| Answer» C. Both A & B | |
| 327. |
Abbreviate the term DOM? |
| A. | Developed Object Model |
| B. | Document Object Model |
| C. | Document Oriented Model |
| D. | None of the above |
| Answer» C. Document Oriented Model | |
| 328. |
What type of constructor is used to provide different values to the distinct objects? |
| A. | Default constructor |
| B. | Parameterized constructor |
| C. | Overloading constructor |
| D. | None of the above |
| Answer» C. Overloading constructor | |
| 329. |
An XML parser converts an XML document into an XML DOM object, which can then be manipulated with JavaScript. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 330. |
Which HTTP Request method is non-idempotent? |
| A. | GET |
| B. | POST |
| C. | BOTH A & B |
| D. | None of the above |
| Answer» C. BOTH A & B | |
| 331. |
JDBC stands for? |
| A. | Java database connectivity |
| B. | Java database concept |
| C. | Java database communications |
| D. | None of the above |
| Answer» B. Java database concept | |
| 332. |
Which servlet does the struts framework use? |
| A. | EntryServlet |
| B. | StrutsServlet |
| C. | ActionServlet |
| D. | BasicServlet |
| Answer» D. BasicServlet | |
| 333. |
What does the Session object hold? |
| A. | First Level Cache |
| B. | Second Level Cache |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. Second Level Cache | |
| 334. |
The following example shows which XML Syntax rule, (1) < note date=" 12/11/2007"> (2) < to>Tove< /to> (3) < from>Jani< /from> (4) < /note> |
| A. | XML Attribute Values Must be Quoted |
| B. | All XML Elements Must Have a Closing Tag |
| C. | XML Tags are Case Sensitive |
| D. | XML Elements Must be Properly Nested |
| Answer» B. All XML Elements Must Have a Closing Tag | |
| 335. |
The getElementsByTagName() method is used to retrieve data from an XML document. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 336. |
Which keyword is used by classes to implement an interface? |
| A. | import |
| B. | implements |
| C. | instance of |
| D. | None of the above |
| Answer» C. instance of | |
| 337. |
Which package includes StringTokenizer that tokenizes a string into independent words? |
| A. | java.awt |
| B. | java.applet |
| C. | java.util |
| D. | java.lang |
| Answer» D. java.lang | |
| 338. |
JVM stands for? |
| A. | Java Very Large Machine |
| B. | Java Verified Machine |
| C. | Java Very Small Machine |
| D. | Java Virtual Machine |
| Answer» E. | |
| 339. |
Which method waits for a thread to die? |
| A. | stop() |
| B. | start() |
| C. | terminate() |
| D. | join() |
| Answer» E. | |
| 340. |
What will happen if we call the run() method directly instead of calling the start() method? |
| A. | Each thread starts in a separate call stack. |
| B. | Invoking the run() method from main thread, the run() method goes onto the current call stack rather than at the beginning of a new call stack. |
| C. | Both A & B |
| D. | None of the above |
| Answer» D. None of the above | |
| 341. |
Which package includes all the standard classes of java? |
| A. | java.lang |
| B. | java.math |
| C. | java.ref |
| D. | java.util |
| Answer» B. java.math | |
| 342. |
Which class is used when a program does not want to handle an exception? |
| A. | Throws |
| B. | Try |
| C. | Catch |
| D. | Final |
| Answer» B. Try | |
| 343. |
How many types of constructor are defined in the StringTokenizer class? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 344. |
What represents a persistent global data from the database? |
| A. | Entity Bean |
| B. | Session Bean |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. Session Bean | |
| 345. |
Which is the Microsoft solution for providing dynamic Web content? |
| A. | ASP |
| B. | JSP |
| C. | Both A & B |
| D. | None of the above |
| Answer» B. JSP | |
| 346. |
Which of the following is an advantage of the statement – Separation of business logic from JSP ? |
| A. | Custom Tags in JSP |
| B. | JSP Standard Tag Library |
| C. | All the above |
| D. | None of the above |
| Answer» B. JSP Standard Tag Library | |
| 347. |
Which is a mechanism where one object acquires all the properties and behaviors of the parent object? |
| A. | Inheritance |
| B. | Encapsulation |
| C. | Polymorphism |
| D. | None of the above |
| Answer» B. Encapsulation | |
| 348. |
RMI Architecture consists of how many layers? |
| A. | 5 |
| B. | 3 |
| C. | 4 |
| D. | 2 |
| Answer» D. 2 | |
| 349. |
What is used to run an Applet? |
| A. | An html file |
| B. | An AppletViewer tool(for testing purpose) |
| C. | Both A & B |
| D. | None of the above |
| Answer» D. None of the above | |
| 350. |
Which JDBC product components does the Java software provide? |
| A. | The JDBC driver manager |
| B. | The JDBC driver test suite |
| C. | The JDBC-ODBC bridge |
| D. | All mentioned above |
| Answer» E. | |