If you are looking for Accenture Interview Questions and you are going for an interview in Accenture, this article will help you to learn more about Accenture Interview Questions.

Mostly Accenture conducts the Interview in 3 or 4 rounds. It may depend on the job profile and department as well. In this article, we are sharing the top most popular Interview questions for Data Science and Java Profile. Accenture conducts their interview in the following rounds:

1. Aptitude/Verbal ability round/Written Round
2. Technical Interview Round
3. HR round

Here you can check Popular Accenture Interview Questions.

Accenture Interview Questions

What is the reason Java is being referred to as platform-independent?

Java is a platform-independent language that means that we can execute our program on any operating system, whether Mac, Windows, or Linux. Java can be described as Platform independent since whenever we type code, the compiler converts it into bytecode. This code can be executed on any operating system (JDK must be installed on the OS you are using).

What are you able to understand by the term “Exception Handling?

Exception handling is the process that handles exceptions in the course of running an application. Because of the exceptions, the execution of programs can be stopped. Therefore it is essential to manage these exceptions so that the program can run without a hitch. It is possible to handle exceptions using five keywords: try, catch, throw, throws, and then.

What is the checked and unchecked exception?

• Checked exception When the exception occurs or is checked during compile time in running a program, this is known”checked” exception. It is recommended to handle these exceptions with try-catch blocks or using the throws as a keyword.
• E.g., if someone tries to read a file that is not present, then it will throw a checked exception at compile time FileNotFoundException
• Non-checked errors If the exception is not checked during compiling and occurs at runtime, this type of error is known as an unchecked or unchecked exception. These kinds of exceptions are because of an oversight in the programming logic. If we don’t take care of this type of error, the compiler won’t provide the compilation error.
• E.g., ArithmeticException

What is the reason that led to the development of an exception?

The following are the causes for the reasons for the existence of an exception:

• The file you want to access isn’t even there
• Dividing a variable by zero
• Inserting an element of the array that is not within the space
• If the throw statement is triggered,
• JVM detects abnormal execution conditions

What exactly is the OOP concept?

OOP is an acronym for Object-Oriented Programming. The term “Object-Oriented Programming” refers to a programming practice that uses objects and classes. Java is among the programming languages founded on these principles. The most fundamental OOP ideas are as follows:

• Object
• Class
• Inheritance
• Polymorphism
• Abstraction
• Encapsulation

Define the difference between Object and class.

The Object and the class are the main features in OOPs concepts. The fundamental differences between these aspects are as follows:

• A-Class can be described as a logic unit, while an object is a physical item.
• Class is not in memory at the time of its creation, while Object was occupying space in memory when it was made.
• To declare a class, we can use the “class” keyword, followed by a class’s name, while we create an object using the keyword ‘new’ in Java.
• A class is similar to the factory that creates objects and objects represent the classes that are created.

What is encapsulation, and what does it mean in Java?

Encapsulation refers to the method of enclosing codes and data to create a unit. The best illustration to grasp the concept of encapsulation is a capsule with the drug inside.

• When we mark all members of the class’s data as private, it’s referred to as fully encapsulated in Java, and we can utilize the getter and setter methods to access it.
• One of the most famous examples of the class that is fully encapsulated in the Java Bean class.
• Encapsulation protects its data from other classes and is often referred to as data hiding.

Is it possible to implement multi inheritance with Java? Please explain why?

No, We cannot use multiple inheritances in Java because it can cause confusion and diamond problems within the program. To get around this issue, we can implement interfaces in Java.

Let’s say that A class inherits from the two-parent classes B and C where the same method name is used in both classes. Therefore, when we try to modify that method, it could confuse the compiler and result in an error in compilation. So, Java does not allow multiple inheritances.

Accenture Interview Questions About Data Science:

Check here popular “Accenture Interview Questions For Data Science” here below.

What is the data structure?

Data structures are a particular method of organizing and governing the information in a computer to be accessible, easily modified, and updated quickly. Some examples of the data structure are provided below.

1. Array
2. Linked List
3. Queue
4. Stack and many others.

Normalization: What exactly is it? What are the different types?

Normalization refers to arranging the data stored in the database to minimize redundancy in the data and ensure the integrity of the data. It can also be referred to as data normalization or database normalization.

By normalizing the data, we can organize the data into columns and tables. It is possible to define a relationship between these columns or tables.

There is a variety of normalizations that are frequently used:

• The first regular version (1NF)
• 2NF is the second regular version. (2NF)
• The third form of standard ( 3NF)
• Boyce & Codd standard form (BCNF)
• 4th standard form(4NF)

Define the “primary key,” foreign key,” as well as the “UNIQUE key” in the Database?

The primary key in a database is a column or column that uniquely is assigned to each row in the data table. Primary keys should be unique for every row of the Table. It should not contain zero values. By default, the primary key is an index clustered.

Unique Key Unique keys also function as a primary key. However, it could have a single null value. It cannot allow duplicate values. By default, the only key is the index that is not clustered.

Foreign Key A foreign key can be used to establish an interlink between tables. It is possible to define it within the Table of the other, but it will be referring to either the primary key or the unique one in the Table in which it was first defined. A Foreign key could include several null values. A foreign key may contain multiple and on the same Table.

What is XML used for in DBMS? What are its definitions?

• Its name refers to XML in a database as ” eXtensible Markup Language.“
• XML database was designed to allow storage and transportation of large amounts of data stored in XML format.
• XML database is typically used in conjunction with document-based databases.
• There are two kinds of XML databases used, which are:

1. 1. XML-enabled
   2. Native XML

Enabled by XML Database: enabled by XML Database is similar to RDBMS in that Data is stored in tables composed of rows and columns. This extension is used that allows changing XML documents.

Native XML database: Native XML database stores the data-dependent on the container but not in the format of tables. By using it as a native XML database, we can save a significant volume of data. You can search for native-XML Database data with X-path expressions.

What is the difference between CHAR as well as VARCHAR2?

We make use of CHAR as well as VARCHAR2 for the storage of strings within the Database. However, the primary difference between these two terms is as follows:

• Char is a fixed size, and VARCHAR is based upon the length of the string that we intend to save.
• If we employ CHAR for storing a string, it will use memory according to the size we’ve specified. However, VARCHAR2 will only take the memory according to the length of the string. Thus, by using VARCHAR, we can make use of memory more effectively.

What is the difference between the DELETE and TRUNCATE commands used in SQL?

Two commands can erase one row from the Table, which is TABLE and TRUNCATE commands.

The significant differences between the commands are listed below:

• TRUNCATE is known as a DDL command, whereas DELETE is among the DML commands.
• DELETE is a way to delete some rows from the Table. The TRUNCATE command is employed to eliminate ALL rows of the Table.
• If we apply the DELETE command without using the WHERE clause, it will erase the entire Table. However, it won’t clear the space inside the container. Using the TRUNCATE command will eliminate the entire TABLE and free the space in the Table, and we are unable to use WHERE clauses with it.

What’s DML Command in DBMS?

DML is a reference to Data Manipulation Language. The SQL commands that deal with the manipulation of data are related to DML. Some DML commands include:

• SQLThis command is utilized to fetch data from the Table of any database.
• InsertThis command is utilized to enter or insert data to the Table.
• Update this command can be utilized to update the information on the Table.
• DELETE The DELETE command can be used to delete entries of the Table.

Why do we use DBMS?

DBMS is a ” Database Management System.” It’s used to work with Data.

Here are some of the functions of DBMS:

1. The creation of the Database
2. The management of the data stored in the Database
3. The updating of data stored in the Database
4. Data retrieval from databases.
5. Effective management of memory
6. DBMS gives the security of the Data

What is the difference between “Hot Backup” and “Cold Backup” in the Database?

In the Database, we can create backups of the data using two methods:

1. Cold backup
2. Hot backup

Cold Backup Cold backup can be described as a physical backup and is also known as an offline backup. Cold backup is used when the Database is offline mode, and one is logged in. When a cold backup is created, all data files are copied without the possibility of alteration. This is a safer method for backup of the control files and data. E.g., a USB drive or hard drive may be considered a cold backup if it is disconnected after every backup.

Hot Backup Hot Backup can also be an actual backup, and it’s referred to as an online backup. The Hot Backup is a type of backup that is runs on data even when the Database is open to every user. Hot backup is a risk because it is accessible and available to all users. It is utilized when we need to back up the entire Database Database. Oracle offers a preferred method for backing up, i.e., Recovery Manager (RMAN).

What are the ON DELETE CASCADE options available in the DB table?

MySQL provides a method to erase the information from the Table in the Database. It is known as ON DELETE CASCADE. It operates concerning the foreign key. In this case, the information of the primary Table; data will be automatically deleted from the child table.

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