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MCQOPTIONS
This section includes 1671 Mcqs, each offering curated multiple-choice questions to sharpen your Technical Programming knowledge and support exam preparation. Choose a topic below to get started.
| 551. |
How does eclipse provide capability for debugging browser actions? |
| A. | internal web browser |
| B. | chrome web browser |
| C. | firefox web browser |
| D. | internet explorer browser |
| Answer» B. chrome web browser | |
| 552. |
Which perspective is used to run a program in debug view? |
| A. | java perspective |
| B. | eclipse perspective |
| C. | debug perspective |
| D. | jdbc perspective |
| Answer» D. jdbc perspective | |
| 553. |
What happens when the value of variable change? |
| A. | changed value pop on the screen |
| B. | variable changes are printed in logs |
| C. | dump of variable changes are printed on screen on end of execution |
| D. | variable tab shows variables highlighted when values change |
| Answer» E. | |
| 554. |
What is debugging an application which runs on another java virtual machine on another machine? |
| A. | virtual debugging |
| B. | remote debugging |
| C. | machine debugging |
| D. | compiling debugging |
| Answer» C. machine debugging | |
| 555. |
Which view allows us to delete and deactivate breakpoints and watchpoints? |
| A. | breakpoint view |
| B. | variable view |
| C. | debug view |
| D. | logger view |
| Answer» B. variable view | |
| 556. |
Which key helps to step out of the caller of currently executed method? |
| A. | F3 |
| B. | F5 |
| C. | F7 |
| D. | F8 |
| Answer» D. F8 | |
| 557. |
How to deep dive into the execution of a method from a method call? |
| A. | F3 |
| B. | F5 |
| C. | F7 |
| D. | F8 |
| Answer» C. F7 | |
| 558. |
Which part stores the program arguments and startup parameters? |
| A. | debug configuration |
| B. | run configuration |
| C. | launch configuration |
| D. | project configuration |
| Answer» D. project configuration | |
| 559. |
How can we move from one desired step to another step? |
| A. | breakpoints |
| B. | System.out.println |
| C. | logger.log |
| D. | logger.error |
| Answer» B. System.out.println | |
| 560. |
Which mode allows us to run program interactively while watching source code and variables during execution? |
| A. | safe mode |
| B. | debug mode |
| C. | successfully run mode |
| D. | exception mode |
| Answer» C. successfully run mode | |
| 561. |
Which design pattern works on data and action taken based on data provided? |
| A. | Command pattern |
| B. | Singleton pattern |
| C. | MVC pattern |
| D. | Facade pattern |
| Answer» B. Singleton pattern | |
| 562. |
Is design pattern a logical concept? |
| A. | True |
| B. | false |
| Answer» B. false | |
| 563. |
What does MVC pattern stands for ? |
| A. | Mock View Control |
| B. | Model view Controller |
| C. | Mock View Class |
| D. | Model View Class |
| Answer» C. Mock View Class | |
| 564. |
Which design pattern represents a way to access all the objects in a collection? |
| A. | Iterator pattern |
| B. | Facade pattern |
| C. | Builder pattern |
| D. | Bridge pattern |
| Answer» B. Facade pattern | |
| 565. |
Which design pattern suggest multiple classes through which request is passed and multiple but only relevant classes carry out operations on the request? |
| A. | Singleton pattern |
| B. | Chain of responsibility pattern |
| C. | State pattern |
| D. | Bridge pattern |
| Answer» C. State pattern | |
| 566. |
Which design pattern ensures that only one object of particular class gets created? |
| A. | Singleton pattern |
| B. | Filter pattern |
| C. | State pattern |
| D. | Bridge pattern |
| Answer» B. Filter pattern | |
| 567. |
Which design pattern provides a single class which provides simplified methods required by client and delegates call to those methods? |
| A. | Adapter pattern |
| B. | Builder pattern |
| C. | Facade pattern |
| D. | Prototype pattern |
| Answer» D. Prototype pattern | |
| 568. |
Which of the below is not a valid classification of design pattern? |
| A. | Creational patterns |
| B. | Structural patterns |
| C. | Behavioural patterns |
| D. | Java patterns |
| Answer» E. | |
| 569. |
Which of the below author is not a part of GOF (Gang of Four)? |
| A. | Erich Gamma |
| B. | Gang Pattern |
| C. | Richard Helm |
| D. | Ralph Johnson |
| Answer» C. Richard Helm | |
| 570. |
Which of the below is not a valid design pattern? |
| A. | Singleton |
| B. | Factory |
| C. | Command |
| D. | Java |
| Answer» E. | |
| 571. |
Which of the following is not a JDBC connection isolation levels? |
| A. | TRANSACTION_NONE |
| B. | TRANSACTION_READ_COMMITTED |
| C. | TRANSACTION_REPEATABLE_READ |
| D. | TRANSACTION_NONREPEATABLE_READ |
| Answer» E. | |
| 572. |
Which of the following is used to rollback a JDBC transaction? |
| A. | rollback() |
| B. | rollforward() |
| C. | deleteTransaction() |
| D. | RemoveTransaction() |
| Answer» B. rollforward() | |
| 573. |
Which of the following is method of JDBC batch process? |
| A. | setBatch() |
| B. | deleteBatch() |
| C. | removeBatch() |
| D. | addBatch() |
| Answer» E. | |
| 574. |
Which of the following is used to limit the number of rows returned? |
| A. | set Max Rows (int i) |
| B. | set Min Rows (int i) |
| C. | get Maxrows (int i) |
| D. | get Min Rows (int i) |
| Answer» B. set Min Rows (int i) | |
| 575. |
Which of the following is used to call stored procedure? |
| A. | Statement |
| B. | Prepared Statement |
| C. | Callable Statment |
| D. | Called Statement |
| Answer» D. Called Statement | |
| 576. |
What does setAutoCommit(false) do? |
| A. | commits transaction after each query |
| B. | explicitly commits transaction |
| C. | does not commit transaction automatically after each query |
| D. | never commits transaction |
| Answer» D. never commits transaction | |
| 577. |
Which one of the following contains date information? |
| A. | java.sql.TimeStamp |
| B. | java.sql.Time |
| C. | java.io.Time |
| D. | java.io.TimeStamp |
| Answer» B. java.sql.Time | |
| 578. |
Which of the following is advantage of using PreparedStatement in Java? |
| A. | Slow performance |
| B. | Encourages SQL injection |
| C. | Prevents SQL injection |
| D. | More memory usage |
| Answer» D. More memory usage | |
| 579. |
Which of the following is advantage of using JDBC connection pool? |
| A. | Slow performance |
| B. | Using more memory |
| C. | Using less memory |
| D. | Better performance |
| Answer» E. | |
| 580. |
Which of the following contains both date and time? |
| A. | java.io.date |
| B. | java.sql.date |
| C. | java.util.date |
| D. | java.util.dateTime |
| Answer» E. | |
| 581. |
How to specify autowiring by name? |
| A. | @Qualifier |
| B. | @Type |
| C. | @Constructor |
| D. | @Name |
| Answer» B. @Type | |
| 582. |
Which attribute is used to specify destroy method? |
| A. | destroy |
| B. | destroy-method |
| C. | destruction |
| D. | destruction-method |
| Answer» C. destruction | |
| 583. |
Which attribute is used to specify initialization method? |
| A. | initinit-method |
| B. | init-method |
| C. | initialization |
| D. | initialization-method |
| Answer» C. initialization | |
| 584. |
What is the attribute of java bean to specify scope of bean to have single instance per Spring IOC? |
| A. | prototype |
| B. | singleton |
| C. | request |
| D. | session |
| Answer» C. request | |
| 585. |
Which of the following is not feature of Beans? |
| A. | Introspection |
| B. | Events |
| C. | Persistence |
| D. | Serialization |
| Answer» E. | |
| 586. |
Java Beans are extremely secured? |
| A. | True |
| B. | False |
| Answer» C. | |
| 587. |
Which of the following is correct error when loading JAR file with duplicate name? |
| A. | java.io.NullPointerException |
| B. | java.lang.ClassNotFound |
| C. | java.lang.ClassFormatError |
| D. | java.lang.DuplicateClassError |
| Answer» D. java.lang.DuplicateClassError | |
| 588. |
Which of the following is not true about Java beans? |
| A. | Implements java.io.Serializable interface |
| B. | Extends java.io.Serializable class |
| C. | Provides no argument constructor |
| D. | Provides setter and getter methods for its properties |
| Answer» C. Provides no argument constructor | |
| 589. |
Which of the following is not an Enterprise Beans type? |
| A. | Doubleton |
| B. | Singleton |
| C. | Stateful |
| D. | Stateless |
| Answer» B. Singleton | |
| 590. |
Which of the following keywords are used for lower bounding a wild card? |
| A. | extends |
| B. | super |
| C. | class |
| D. | lower |
| Answer» C. class | |
| 591. |
Which of these is an correct way making a list that is upper bounded by class Number? |
| A. | List<? extends Number> |
| B. | List<extends ? Number> |
| C. | List(? extends Number) |
| D. | List(? UpperBounds Number) |
| Answer» B. List<extends ? Number> | |
| 592. |
Which of these keywords is used to upper bound a wildcard? |
| A. | stop |
| B. | bound |
| C. | extends |
| D. | implements |
| Answer» D. implements | |
| 593. |
What is use of wildcards? |
| A. | It is used in cases when type being operated upon is not known |
| B. | It is used to make code more readable |
| C. | It is used to access members of super class |
| D. | It is used for type argument of generic method |
| Answer» B. It is used to make code more readable | |
| 594. |
Which of these is wildcard symbol? |
| A. | ? |
| B. | ! |
| C. | % |
| D. | & |
| Answer» B. ! | |
| 595. |
Which of the following cannot be Type parameterized? |
| A. | Overloaded Methods |
| B. | Generic methods |
| C. | Class methods |
| D. | Overriding methods |
| Answer» B. Generic methods | |
| 596. |
Which of these Exception handlers cannot be type parameterized? |
| A. | catch |
| B. | throw |
| C. | throws |
| D. | all of the mentioned |
| Answer» E. | |
| 597. |
Which of these data type cannot be type parameterized? |
| A. | Array |
| B. | List |
| C. | Map |
| D. | Set |
| Answer» B. List | |
| 598. |
Which of these instance cannot be created? |
| A. | Integer instance |
| B. | Generic class instance |
| C. | Generic type instance |
| D. | Collection instances |
| Answer» D. Collection instances | |
| 599. |
Which of these types cannot be used to initiate a generic type? |
| A. | Integer class |
| B. | Float class |
| C. | Primitive Types |
| D. | Collections |
| Answer» D. Collections | |
| 600. |
Which of these is an correct way of defining generic method? |
| A. | name(T1, T2, …, Tn) { /* … */ } |
| B. | public name { /* … */ } |
| C. | class name[T1, T2, …, Tn] { /* … */ } |
| D. | name{T1, T2, …, Tn} { /* … */ } |
| Answer» C. class name[T1, T2, …, Tn] { /* … */ } | |