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I applied via Naukri.com and was interviewed before Aug 2023. There were 2 interview rounds.
DDL commands in SQL are used to define, modify, and drop database objects.
DDL stands for Data Definition Language.
Common DDL commands include CREATE, ALTER, and DROP.
CREATE is used to create new database objects like tables, indexes, or views.
ALTER is used to modify existing database objects.
DROP is used to delete database objects.
Example: CREATE TABLE, ALTER TABLE ADD COLUMN, DROP TABLE
I applied via Referral and was interviewed before Jul 2020. There was 1 interview round.
Transaction response codes are codes that indicate the status of a transaction.
Transaction response codes are used in electronic payment systems to indicate the status of a transaction.
These codes can indicate whether a transaction was approved, declined, or resulted in an error.
Common transaction response codes include 00 for approved transactions, 05 for declined transactions, and 12 for invalid transactions.
Transact...
Transaction flow of a POS machine involves multiple steps from initiation to completion.
Customer initiates payment by swiping or inserting card
POS machine reads card information and sends it to payment gateway
Payment gateway verifies card details and sends request to card issuer
Card issuer approves or declines the transaction and sends response to payment gateway
Payment gateway sends response to POS machine
POS machine
An authorizer is a person or system that grants or denies access to resources based on predefined rules.
Authorizers are commonly used in computer security to control access to files, folders, and other resources.
They can be implemented as software programs or as hardware devices.
Authorizers typically use a set of rules to determine whether a user or system is authorized to access a resource.
Examples of authorizers incl...
Financial Software & Systems interview questions for designations
I applied via Naukri.com and was interviewed in Jan 2020. There were 3 interview rounds.
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I applied via Campus Placement and was interviewed in Jul 2023. There was 1 interview round.
A lambda function is an anonymous function that can be used to write concise and reusable code.
Lambda functions are often used in functional programming languages.
They can be used as arguments to higher-order functions.
Lambda functions can be written inline without a separate function definition.
They are commonly used for tasks that require a short and simple piece of code.
Lambda functions can be used in various progra...
Inheritance is a mechanism in object-oriented programming where a class inherits properties and behaviors from another class.
Inheritance allows for code reuse and promotes the concept of hierarchy.
The class that inherits properties and behaviors is called the derived class or subclass.
The class from which properties and behaviors are inherited is called the base class or superclass.
Constructors in a class are special m...
posted on 25 Sep 2024
Clustering in Cassandra involves grouping together multiple nodes to improve performance, scalability, and fault tolerance.
Clustering is used to distribute data across multiple nodes in a Cassandra cluster.
It helps in achieving high availability and fault tolerance by replicating data across nodes.
Cassandra uses consistent hashing to determine which node will store a particular piece of data.
Data is partitioned into sm...
I applied via Job Portal and was interviewed in Oct 2024. There were 3 interview rounds.
posted on 5 Aug 2024
Some common commands for technical support engineers include ping, ipconfig, and tracert.
Ping: Used to test the reachability of a host on an IP network.
Ipconfig: Displays all current TCP/IP network configuration values.
Tracert: Shows the route that packets take to reach a specified destination.
posted on 18 Oct 2024
Write some simple SQL queries and function,stored procedure
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