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You will find all Programming Portal MCQs whose solution is updated by Admin
Q. What is the purpose of the "try" block in exception handling?
Q. What will be the output of the following piece of code:
Q. In Java, can a subclass override a private method from its superclass?
Q. Does Java support multiple level inheritance?
Q. Which of the following is a method of wrapper Float for converting the value of an object into byte?
Q. Which of these methods is called when observed object has changed?
Q. In Java, can an abstract class have constructors?
Q. Which of function return absolute value of a variable?
Q. What will happen if we provide concrete implementation of method in interface?
Q. What is the value of double consonant 'E' defined in Math class?
Q. Which keyword is used to declare an interface in Java?
Q. Which keyword is used to prevent method overriding in Java?
Q. What is the purpose of the "return" statement in a method in Java?
Q. What is the prototype of the default constructor? public class Test { }
Q. What is the result of the expression 10 / 3 in Java?
Q. What is the result of the expression 10 > 5 ? 2 : 1 in Java?
Q. Which operator is used to perform logical AND in Java?
Q. What is the purpose of the charAt() method of a String object in Java?
Q. What is the correct way to create a new empty String object in Java?
Q. Which of the following is a primitive data type in Java?
Q. In Java, which data type is used to represent true or false values?
Q. Which of the following is not a valid identifier for a Java variable?
Q. How to get difference between two dates?
Q. Which of these is necessary condition for automatic type conversion in Java?
Q. The keyword used to create a database is . . . . . . . .
Q. A view can be deleted using the command . . . . . . . .
Q. What is the default format for "Date" data type?
Q. Which of the following can be used interchangeably with MYSQL_VERSION_ID?
Q. Which variable is set to zero when automatic privilege granting is not needed?
Q. The storage engine for which the runtime options are always enabled is . . . . . . . .
Q. What sets up an association between one or more MyISAM tables and the named key cache?
Q. Each language binding defines its own interface for accessing MySQL.
Q. The datatype that stores the longest length of strings is . . . . . . . .
Q. Which statement can be used to specify the sql_mode system variable at runtime?
Q. Identify the table name in the following SQL statement. INSERT INTO student VALUES('Kyle','M',NULL);
Q. A DEFAULT value cannot be supplied to TEXT types.
Q. How many of the following can be used in stored functions? PREPARE, EXECUTE, DEALLOCATE PREPARE
Q. How many of these are for use with only MyISAM tables? mysql, mysqladmin, mysqldump, mysqlisamchk
Q. What is the general term for information about databases and the objects in MySQL?
Q. Which header should be included first?
Q. Which function returns reference to hash of row values?
Q. Which library file contains various portability macros and definitions?
Q. What is the meaning of "Equality Conditions"?
Q. The statement that suspends the replication related activity of the slave server is . . . . . . . .
Q. The maximum value that can be specified to the size of VARCHAR is . . . . . . . .
Q. Symlink is an applicable relocation method for . . . . . . . .
Q. The clause that filters JOIN results is called . . . . . . . .
Q. The CGI.pm module for website development is a part of . . . . . . . .
Q. The option which delays index flushing for slave server is . . . . . . . .
Q. Which is the stored program associated with a schedule?
Q. If the storage engine InnoDB is not used, foreign key cannot be used.
Q. How would a stored function named PI() written in the database 'sampdb' be called?
Q. IP numbers can be represented as . . . . . . . .
Q. What is the embedded server library when building from source enabled by?
Q. The statement used to create a trigger is . . . . . . . .
Q. Which of these has higher priority? writes, reads
Q. Input can be validated in MySQL programs.
Q. Multiple MySQL servers cannot be run on the same machine.
Q. Which statement can be used for modifying the definition for an existing table?
Q. A synonym for CHARACTER SET is . . . . . . . .
Q. The 'SOCKET' protocol is permitted on which operating systems?
Q. Comparing a known value with NULL results into . . . . . . . .
Q. Triggers are not supported for . . . . . . . .
Q. Which key declares that an index in one table is related to that in another?
Q. Which table lists the accounts and the databases for which the privileges are provided?
Q. X'61626364' and X'61626364' are respectively . . . . . . . .
Q. Arrays cannot have associative indices in PHP.
Q. What is the primary purpose of Apache NiFi in the context of data integration?
Q. What does the term "Data Provenance" refer to in the context of NiFi?
Q. What is the primary purpose of NiFi's "ExecuteSQL" processor?
Q. In NiFi, what is the primary purpose of the "PutFTP" processor?
Q. In NiFi, what does the term "Distributed Cache" refer to?
Q. What is the significance of Hadoop's Access Control Lists (ACLs) in terms of security?
Q. What is the purpose of Hadoop's HDFS Encryption Zones in terms of data security?
Q. How does Hadoop support access control in HDFS?
Q. What is the significance of Hadoop's Knox Gateway in a secure Hadoop environment?
Q. Which of the following is a straightforward binary format?
Q. Point out the correct statement.
Q. Point out the wrong statement.
Q. Point out the correct statement.
Q. In HBase, what does the term "HBase MemStore Flush" refer to?
Q. In Oozie, what does the term "bundle application coordinator" mean?
Q. What is the primary role of the Oozie Coordinator Action?
Q. . . . . . . . . is a software development collaboration tool.
Q. HDT project works with eclipse version . . . . . . . . and above.
Q. By default, collector's listen on port . . . . . . . .
Q. Hive specific commands can be run from Beeline, when the Hive . . . . . . . . driver is used.
Q. What is the primary role of the Hadoop TextInputFormat?
Q. What is the purpose of the Hadoop AvroKeyOutputFormat?
Q. Which of the following supports splittable compression?
Q. The . . . . . . . . codec uses Google's Snappy compression library.
Q. . . . . . . . . tools is used to generate proxy objects in Java to easily work with the objects.
Q. What is the purpose of the Pig Latin AVG() function?
Q. Which of the following operator is used to view the map reduce execution plans?
Q. . . . . . . . . mode is a Namenode state in which it does not accept changes to the name space.
Q. . . . . . . . . supports null values for all types.
Q. Zookeeper essentially mirrors the . . . . . . . . functionality exposed in the Linux kernel.
Q. Point out the correct statement.
Q. Tombstones exist for a configured time period defined by the . . . . . . . . value set on the table.
Q. Records are terminated by a . . . . . . . . character.
Q. In a MapReduce application, what does the term "InputFormat" represent?
Q. Map output larger than . . . . . . . . percent of the memory allocated to copying map outputs.
Q. The . . . . . . . . class provides the getValue() method to read the values from its instance.
Q. Which of the following is the default Partitioner for Mapreduce?
Q. Which programming language is commonly used for writing MapReduce programs?
Q. What is the purpose of Apache Ambari in the Hadoop ecosystem?
Q. What is the primary function of the MapReduce "Sort" phase?
Q. The right number of reduces seems to be . . . . . . . .
Q. In Hadoop architecture, what does the term "shuffle and sort" refer to?
Q. What is the function of the Hadoop JobTracker in the architecture?
Q. What is the purpose of Hadoop ResourceManager in YARN?
Q. What does Hadoop MapReduce provide in terms of processing large datasets?
Q. Which Hadoop component is responsible for coordination and scheduling of tasks?
Q. In advanced MapReduce, what is the purpose of the Hadoop MapReduce "Map Output Compression"?
Q. Users can bundle their Yarn code in a . . . . . . . . file and execute it using jar command.
Q. Which of the following command runs ResourceManager admin client?
Q. . . . . . . . . gets the diagnostic messages for a given task attempt.
Q. The background color of a Web page is determined by the . . . . . . . . property.
Q. text box can handle string (text) and numeric data but not images or pictures
Q. The . . . . . . . . operator reverses the value of the condition.
Q. There are 3 type of modules following are not include in it.
Q. 'e' parameter's . . . . . . . . property is used to cancel the key if not accepted in the text area.
Q. Stretch property is used set. . . . . . . .of images .
Q. . . . . . . . . data is a data that the application is expecting the user to enter.
Q. To hide a section of code we click the . . . . . . . . box next to it.
Q. In VB, The . . . . . . . . function extracts a substring from the original phrase or string
Q. Which of the following section is used to make text appear around the image?
Q. The variable can be a declared by . . . . . . . .statement .
Q. A millisecond is . . . . . . . . of a second.
Q. And operator checks both the sub-conditions whereas AndAlso operator does . . . . . . . .
Q. In the following Visual Basic code, what will be in msg, if str contains "visual basic"?
Q. Where you enter the event procedure's code?
Q. Files that are read by computer are called as . . . . . . . .
Q. A . . . . . . . . variable is the instance of the String class.
Q. . . . . . . . . data type can store any type of data.
Q. The . . . . . . . . method creates a periodic payment on either a loan or an investment.
Q. The name of the class file ends with . . . . . . . .
Q. The timer state is determined by . . . . . . . .
Q. As per the syllabus we study version of VB is . . . . . . . .
Q. You can eliminate the problems of implicit type conversion, with the help of . . . . . . . .
Q. A . . . . . . . . resembles a table.
Q. VB is tool that allows you to develop application in . . . . . . . .
Q. . . . . . . . . is used to separate related controls from other controls in the form.
Q. The . . . . . . . . instruction tells the computer to close the current form.
Q. What will be the output of the following Visual Basic code?
Q. The appropriate . . . . . . . . setting on a label depends on label's purpose.
Q. How do you select columns from a dplyr data frame where the column names start with the letter 'a'?
Q. Point out the wrong statement?
Q. When creating a Web document, what format is used to express an image's height and width?
Q. Which of the following are interface? 1. ServletContext 2. Servlet 3. GenericServlet 4. HttpServlet
Q. Which interface in spring is responsible for Instantiating and managing the so called Spring beans?
Q. Which of these class is used to access actual bits or content information of a URL?
Q. Which of these class is necessary to implement datagrams?
Q. What is the purpose of the 'history' command in Linux?
Q. Which command is used to display the calendar in Linux?
Q. What does the 'mv' command do in Linux?
Q. Which command is used to create an empty file in Linux?
Q. Which command is used to display the current working directory in Linux?
Q. Which command is used to stop a process in Linux?
Q. Which command is used to find the location of a command in Linux?
Q. What is the default shell in most Linux distributions?
Q. Which command is used to compress files in Linux?
Q. Which file contains user account information in Linux?
Q. Which of the following statements about constructors in C++ is false?
Q. Which of the following is true about function templates in C++?
Q. What will be the output of the following code? int a = 10, b = 3; cout << a % b;
Q. What is the purpose of the 'friend' function in C++?
Q. Which of the following is the correct way to define a function with a deleted definition in C++?
Q. Which of the following is the correct way to define a function with a default argument in C++?
Q. Which of the following is not a valid C++ keyword?
Q. Which of the following is the correct way to define a default constructor in C++?
Q. Which of the following is the correct way to define a function with default arguments in C++?
Q. Which of the following is the correct way to define a const member function in C++?
Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x < y);
Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x == y);
Q. Which of the following is the correct way to define a structure in C++?
Q. Which of the following is the correct way to define a function pointer in C++?
Q. What is the output of the following code snippet? int x = 10; int y = 20; cout << (x != y);
Q. What is the output of the following code snippet? int x = 5; cout << x++;
Q. What is the purpose of the 'delete' keyword in C++?
Q. Which operator is used to allocate memory dynamically in C++?
Q. Which of the following is used to define a comment in Python?
Q. Which command is used to view the Docker container's resource usage statistics?
Q. Which command is used to remove all unused Docker networks?
Q. What is the purpose of the 'docker-compose pause' command?
Q. What does the 'docker exec -it container_name bash' command do?
Q. Which of the following is used to store Docker container data that persists between restarts?
Q. What is the default Docker network for containers?
Q. Which of the following is NOT a type of Docker network driver?
Q. Which command can be used to check the version of Docker installed?
Q. Which command is used to attach a running container to a network?
Q. Which command is used to remove all unused Docker images?
Q. Which command is used to rename a Docker container?
Q. Which command is used to push a Docker image to Docker Hub?
Q. What is the function of a Docker registry?
Q. Which of the following commands is used to build a Docker image from a Dockerfile?
Q. What does the 'docker-compose up' command do?
Q. What is the purpose of the 'ENTRYPOINT' instruction in a Dockerfile?
Q. How do you forcefully remove a running container?
Q. What is the purpose of the 'docker pull' command?
Q. What does the 'docker-compose.yml' file define?
Q. What is the 'docker-compose down' command used for?
Q. How can you limit the memory usage of a Docker container?
Q. What is a Docker container?
Q. Which of the following is a valid option for the 'docker run' command?
Q. Which command is used to view running containers in Docker?
Q. What is the purpose of a Dockerfile?
Q. What is the primary purpose of Docker?
Q. Which of the following is used to share a volume between services in Docker Compose?
Q. Which command is used to start services defined in a Docker Compose file?
Q. What is the purpose of the WORKDIR instruction in a Dockerfile?
Q. There is a unique function in C++ program by where all C++ programs start their execution
Q. In UML ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ is a collection of things tied together through relationships.
Q. The << operator is known as‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐.
Q. When a function is defined inside a class,it is treated as ‐‐‐‐‐‐‐
Q. The binding of data and functions together into a single class‐type is referred to as ‐‐‐‐‐‐‐‐
Q. Variables inside parenthesis of functions declarations have _____ level access.
Q. Arguments of a functions are separated with
Q. Identify the unary operator.
Q. A constructor that accepts __________ parameters is called the default constructor.
Q. Which of the following function / types of function cannot have default parameters?
Q. Which of the following statement is incorrect?
Q. Which of the following means "The use of an object of one class in definition of another class"?
Q. Which of the following can be overloaded?
Q. The function used to display one line at a time
Q. The function used to receive one line at a time
Q. The class that derived from standard library ios contain input functions
Q. A stream of byte that is the interface between IO and IO devices
Q. Conversion of data type is called
Q. The mechanism of deriving one base class with more than one derived classes
Q. Which of the following is not a type of inheritance?
Q. Which of the following command is used to mount NFS filesystems?
Q. If not assigned a value, a variable of type char has the following default value:
Q. Which of the following, in C++, is inherited in a derived class from base class?
Q. A member function can always access the data in __________, (in C++).
Q. Which of the following is true?
Q. Which container provides random access iterators?
Q. When an ADT is implemented as a C++ class, which of the following should normally be true?
Q. While overloading binary operators using member function, it requires ___ argument/s.
Q. If inner catch handler is not able to handle the exception then__________.
Q. Return type of uncaught_exception () is ________________.
Q. Which of the following are member dereferencing operators in CPP? 1. * 2. :: 3. ->* 4. ::* 5. ->
Q. where a VM can be moved from one physical machine to another even as it continues to execute.
Q. tags needs an external source to wake up the battery.
Q. tags contain battery and transmit signals autonomously
Q. Amazon Relational Database Service is a variant of the 5.1 database system.
Q. [π=n/Ttotal=n⁄[kTo+Te(n,m)] The above equation calculates the value of which of the following?
Q. Cloud system from SGI is functionally considered as an _.
Q. You can’t count on a cloud provider maintaining your in the face of government actions.
Q. feature allows you to optimize your system and capture all possible transactions.
Q. Which of the following should be placed in second lowermost layer for the following figure?
Q. Which of the following is another name for the system virtual machine?
Q. Point out the correct statement.
Q. Under which section can we change the first line indent in Special field?
Q. Under which group in Home tab you can create first line indent?
Q. Bold, Italic and Underline commands are present in which group in Home tab?
Q. What does Justify option do?
Q. Which of the following is present in Alignment Option?
Q. How many alignment options are present in Paragraph group?
Q. Paragraph group is present under which tab?
Q. Which option in Case Menu allows us to shift the text case between two different case views?
Q. What does Capitalize Each Word Option do?
Q. What does Sentence Case Option do?
Q. Which of the following is NOT present in Case Menu?
Q. In Home tab, which group can help us to change the font color?
Q. Which of the following is automatically counted in MS Word?
Q. There is a ________ underline on the text of any grammar mistakes in the document.
Q. A _____ line will be drawn underlined if a spelling mistake is found in the document.
Q. There will be a ____ line underlined if any contextual errors are found in the document.
Q. To return the remainder after dividing a number, we use the ________ function.
Q. To select an entire column in MS-EXCEL, you click on ________?
Q. When should you use type-casting?
Q. Which of the following codes creates an array of 5 integers?
Q. Which of the following type-casting is accepted in C?
Q. Which of the following type-casting can be “wrapped”?
Q. Which of the following will be the type of ‘res’?
Q. Which type conversion is NOT accepted?
Q. The function tolower() defined in the C library works for ___?
Q. According to the following statements, what is the output of “p2”?
Q. With which value should a pointer be initialized?
Q. What is the output of the following C program?
Q. What is the output of the following C program?
Q. What is the output of the following C program?
Q. What happens after a return?
Q. What is the output of the following C program?
Q. What is the size of int type?
Q. How many times do we get through the following loop?
Q. Which of the following is a user-defined data type?
Q. How many times do we get through the following loop?
Q. Array are stored in which memory space?
Q. The elements of an array is always stored in ________ memory?
Q. Can you make an array volatile?
Q. How to copy the contents of an array?
Q. Generic type in java does not work with _______?
Q. What does this code display?
Q. What does this code display?
Q. What is the type of variables “b” and “d” in the following code?
Q. What is the output of this program?
Q. What is the output of this program?
Q. What is the output of this program?
Q. What is the output of this program?
Q. From which class do all Enums extend?
Q. Which method returns the elements of the Enum class?
Q. Can we create an instance of Enum outside of Enum itself?
Q. What is the order of the variables in Enum?
Q. If we add Enum constants to a TreeSet, what sort order will it use?
Q. Which of the following class in Bootstrap is used to create an animated progress bar?
Q. Which of the following statement is correct about the Bootstrap wells?