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:
Here you can check Popular 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).
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.
The following are the causes for the reasons for the existence of an exception:
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:
The Object and the class are the main features in OOPs concepts. The fundamental differences between these aspects are as follows:
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.
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.
Check here popular “Accenture Interview Questions For Data Science” here below.
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.
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 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.
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.
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:
Two commands can erase one row from the Table, which is TABLE and TRUNCATE commands.
The significant differences between the commands are listed below:
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:
DBMS is a ” Database Management System.” It’s used to work with Data.
Here are some of the functions of DBMS:
In the Database, we can create backups of the data using two methods:
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).
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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