100+ System Analyst Interview Questions and Answers

If I buy a hardware system without software and have no money to buy software, I would explore free and open-source software options.

• Research and identify free and open-source software alternatives

• Utilize online resources and communities to find suitable software

• Consider using trial versions or limited functionality software

• Explore cloud-based solutions or online tools

• Reach out to friends, colleagues, or online forums for potential software options

• Consider learning programmin...read more

Syncing databases with huge log gap using Dataguard and resolving related issues.

• Dataguard can be used to sync databases with huge log gap by creating a standby database and applying archived redo logs.

• Parameters like db_file_name_converter and log_file_name_converter can be used to convert file names between primary and standby databases.

• Redo logs record all changes made to the database and can be used for recovery in case of a failure.

• Undo logs record the before-image of ch...read more

Agile is an iterative approach to software development that emphasizes flexibility and collaboration. Business analysts work closely with stakeholders to identify and prioritize requirements.

• Agile involves breaking down projects into smaller, more manageable chunks called sprints

• Business analysts work with stakeholders to define user stories and prioritize them based on business value

• They also work closely with developers and testers to ensure that requirements are met and th...read more

I have extensive knowledge of both Windows and Linux based servers.

• I am proficient in managing and configuring Windows Server operating systems.

• I have experience in setting up and maintaining Linux servers, including Ubuntu, CentOS, and Red Hat.

• I am familiar with server virtualization technologies like VMware and Hyper-V.

• I have knowledge of server security best practices and can implement firewall rules and access controls.

• I am skilled in troubleshooting server issues and opt...read more

Medicaid is a state-run program for low-income individuals, while Medicare is a federal program for seniors and those with disabilities.

• Medicaid is based on income and eligibility varies by state

• Medicare is based on age and disability

• Medicaid covers a wider range of services, including long-term care

• Medicare is divided into parts A, B, C, and D, each covering different services

• Both programs are funded by taxes

Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.

• Method overloading is used to provide different ways of calling the same method with different parameters.

• Method overriding is used to provide a specific implementation of a method that is already provided by its superclass.

• Method overloading is resolved at compile-time bas...read more

A system is a collection of interconnected components that work together to achieve a common goal.

• A system is made up of multiple parts or components.

• These components are interconnected and interact with each other.

• The components work together to achieve a common goal or purpose.

• Examples of systems include computer systems, transportation systems, and ecological systems.

Compiler translates entire code to machine language, while interpreter translates line by line.

• Compiler generates object code, while interpreter executes code directly.

• Compiler is faster, but interpreter is more flexible.

• Examples of compilers: GCC, Clang. Examples of interpreters: Python, Ruby.

• Compilers are used for languages like C, C++, while interpreters are used for languages like Python, Ruby, JavaScript.

C is a procedural language while C++ is an object-oriented language. Polymorphism is the ability of an object to take on many forms.

• C is a low-level language with limited abstraction while C++ is a high-level language with more abstraction and features like classes and objects.

• Polymorphism allows objects to be treated as if they are of different types, allowing for more flexibility and reusability in code.

• Data type refers to the type of data that a variable can hold, such as ...read more

Creating a dataframe in adb using struct type

• Use the 'CREATE TABLE' statement to define the schema of the dataframe

• Define the struct type using 'STRUCT' keyword

• Insert data into the dataframe using 'INSERT INTO' statement

Payments refer to the transfer of money from one party to another for goods or services rendered.

• Payments can be made through various channels such as credit/debit cards, online banking, mobile wallets, etc.

• The architecture of payments involves multiple layers such as payment gateway, acquiring bank, issuing bank, and card networks.

• Payment architecture also includes security measures such as encryption, tokenization, and fraud detection.

• Examples of payment systems include Pay...read more

Bootstrap is a front-end framework for building responsive websites. HTML and CSS are markup languages used to create web pages.

• Bootstrap is a popular CSS framework that helps in creating responsive websites

• HTML is a markup language used to create the structure of a web page

• CSS is a styling language used to add design and layout to a web page

• Tabular form is a way of displaying data in rows and columns

• HTML tags are used to define the structure and content of a web page

Burn one rope from both ends and the other rope from one end to measure 45 minutes.

• Burn one rope from both ends and the other rope from one end simultaneously.

• When the first rope burns out (30 minutes), light the other end of the second rope.

• When the second rope burns out (15 minutes), 45 minutes have passed.

• Total time taken to burn both ropes: 30 + 15 = 45 minutes.

Data structure refers to organizing and storing data in a computer so that it can be accessed and used efficiently.

• Common data structures include arrays, linked lists, stacks, queues, trees, and graphs.

• Algorithms are step-by-step procedures for solving a problem, often using data structures.

• Examples of algorithms include sorting algorithms (e.g. bubble sort, quicksort), search algorithms (e.g. binary search), and graph traversal algorithms (e.g. depth-first search, breadth-fi...read more

Cut off is used to define the end of a transaction.

• Cut off is a point in time after which any transaction will be considered for the next day's processing.

• It is used to ensure that all transactions are processed in a timely manner.

• For example, a bank may have a cut off time of 5 pm for processing transactions for the day.

• Any transaction made after 5 pm will be processed on the next business day.

Incremental load in ADF is achieved by using watermark columns to track the last loaded data and only loading new or updated records.

• Use watermark columns to track the last loaded data

• Compare the watermark column value with the source data to identify new or updated records

• Use a filter condition in the source query to only select records with a timestamp greater than the watermark value

• Update the watermark column value after each successful load

DNS translates domain names to IP addresses. When you click a link, browser sends a DNS query to resolve the domain name.

• DNS stands for Domain Name System

• When you click a link, browser sends a DNS query to a DNS server to resolve the domain name to an IP address

• The DNS server then responds with the corresponding IP address

• The browser then uses the IP address to connect to the server hosting the website

I used OOPs concepts in a project to create a class hierarchy for different types of users.

• I created a base class 'User' with common attributes like name, email, and role.

• I then created subclasses like 'AdminUser' and 'RegularUser' with specific attributes and methods.

• I utilized inheritance to avoid code duplication and polymorphism for flexibility in method implementation.

Business requirement documentation is a detailed description of the needs and expectations of a business for a software system.

• Business requirement documentation outlines the goals, objectives, and constraints of a project.

• It includes detailed descriptions of the functionalities and features required in the software.

• It serves as a guide for developers and stakeholders throughout the project.

• Examples of business requirement documentation include use cases, user stories, and fu...read more

Moderating is a process of managing and regulating discussions or interactions to ensure they stay on topic and respectful.

• Moderating involves setting rules and guidelines for discussions or interactions.

• Moderators monitor discussions to ensure they stay on topic and respectful.

• Moderators may intervene if discussions become heated or off-topic.

• Moderating can be done in person or online, such as on forums or social media platforms.

I have used various reporting tools in my role as a Systems Analyst.

• I have experience with tools like Microsoft Power BI, Tableau, and SAP Crystal Reports.

• I am proficient in creating visually appealing and interactive reports using these tools.

• I have also worked with SQL Server Reporting Services (SSRS) for generating and distributing reports.

• I have used Excel extensively for data analysis and reporting purposes.

• I am familiar with creating custom reports using programming lan...read more

No, I do not have any constraint in WFO.

• I am proficient in using WFO tools and have experience in optimizing workforce management.

• I am familiar with the best practices and industry standards in WFO.

• I am adaptable and can work with different WFO systems and processes.

• I am open to learning new WFO technologies and techniques.

Agile methodology allows for more flexibility, adaptability, and collaboration compared to waterfall methodology.

• Agile methodology promotes iterative development and continuous feedback.

• Agile allows for changes to be made throughout the project, based on feedback and evolving requirements.

• Agile encourages collaboration between cross-functional teams, leading to better communication and faster problem-solving.

• Agile is better suited for projects with evolving requirements or un...read more

Explaining the differences between union and struct, primary key and foreign key, and providing an example of a MYSQL DML query.

• Union is used to combine data from two or more tables, while struct is used to group related data together.

• Primary key uniquely identifies a record in a table, while foreign key refers to a field in another table.

• Example of MYSQL DML query: INSERT INTO table_name (column1, column2, column3) VALUES (value1, value2, value3);

To get roll numbers of same subjects, filter the data by subject and extract roll numbers.

• Filter the data by subject using a loop or filter function

• Extract roll numbers of filtered data using map or forEach function

• Store the roll numbers in an array of strings

Use the built-in reverse() method to reverse the string.

• Convert the string to an array using split()

• Use the reverse() method to reverse the array

• Join the reversed array back into a string using join()

To make customers satisfied with what they need, it is important to understand their requirements and provide personalized solutions.

• Listen actively to customers and understand their needs

• Offer personalized solutions tailored to their requirements

• Provide excellent customer service and support

• Regularly communicate and update customers on progress

• Seek feedback and continuously improve based on customer input

Valid data refers to data that meets the required format and constraints, while validate data refers to the process of ensuring data accuracy and integrity.

• Valid data is data that meets the specified format and constraints set by the system.

• Validating data involves the process of checking data accuracy, integrity, and consistency.

• For example, a valid email address format would be 'example@email.com', while validating data would involve checking if the email address actually e...read more

There are 10 boxes, each containing 100 tablets.

• Total number of tablets is 1000 (10 boxes x 100 tablets).

• The number of boxes and tablets can be changed based on the requirement.

• The tablets can be of any type or size.

• The boxes can be labeled or numbered for easy identification.

NEFT and RTGS messages are of two types: Customer Transfer and Interbank Transfer.

• NEFT messages can be of two types: Customer Transfer and Interbank Transfer.

• RTGS messages can also be of two types: Customer Transfer and Interbank Transfer.

• Customer Transfer messages are used for transferring funds between accounts of different banks for a customer.

• Interbank Transfer messages are used for transferring funds between accounts of different banks for an interbank transaction.

The main function of exception is to handle errors and unexpected events in a program.

• Exceptions allow for graceful handling of errors and prevent program crashes.

• They provide a way to transfer control from one part of the program to another.

• Exceptions can be caught and handled in a try-catch block.

• Examples of exceptions include divide-by-zero, null pointer, and file not found errors.

I have extensive experience writing test cases for various software systems.

• I have written test cases for both manual and automated testing

• I am familiar with various testing techniques such as boundary testing, equivalence partitioning, and regression testing

• I have experience writing test cases for different types of software applications including web applications, mobile apps, and databases

Little's Law can be used to calculate the pacing for a given number of users and transactions per hour.

• Little's Law states that the average number of users in a system (L) is equal to the average arrival rate (λ) multiplied by the average time a user spends in the system (W). Mathematically, L = λW.

• To calculate pacing, we need to rearrange the formula to solve for W: W = L / λ.

• In this case, we have 200 users and 20,000 transactions per hour, so the arrival rate (λ) is 20,000 ...read more

To get the average of marks in Excel, use the AVERAGE function.

• Select the range of cells containing the marks

• Type =AVERAGE(

• Select the range of cells again

• Close the parentheses and press Enter

• The average of the marks will be displayed

An incident refers to an unplanned interruption or degradation of a service, while a service request is a formal request for assistance or information.

• Incident: Unplanned interruption or degradation of a service

• Service request: Formal request for assistance or information

• Incidents are typically reported by users when a service is not functioning as expected

• Service requests are initiated by users seeking help or information, such as password reset, software installation, etc.

• I...read more

I am comfortable with multiple languages including Java, Python, and SQL.

• Proficient in Java for backend development

• Experienced in Python for data analysis and scripting

• Skilled in SQL for database management and querying

Relationships define how tables are related, joins combine data from two or more tables, and blending combines data from different data sources.

• Relationships are defined in the database schema and determine how tables are related to each other.

• Joins are used to combine data from two or more tables based on a common column or key.

• Blending is used to combine data from different data sources, such as Excel spreadsheets or CSV files.

• Relationships and joins are used in SQL queries...read more

Bangalore has a moderate climate with warm summers and cool winters.

• The city experiences a tropical savanna climate.

• The average temperature in summer ranges from 27 to 35 degrees Celsius.

• The average temperature in winter ranges from 14 to 28 degrees Celsius.

• The monsoon season lasts from June to September, with heavy rainfall.

• The city is known for its pleasant weather throughout the year.

Active Directory is a Microsoft service that manages network resources and user accounts.

• It provides a centralized location for network administration and security.

• It allows for the creation and management of user accounts, groups, and computers.

• It enables authentication and authorization for network resources.

• It can be used to manage access to applications and services.

• Examples of resources that can be managed include printers, files, and email.

• Active Directory is commonly u...read more

Find occurrence of a character in a string

• Iterate through each character in the string and count occurrences

• Use a hashmap to store character counts for efficient lookup

• Handle both uppercase and lowercase characters separately

Gross salary is the total salary before any deductions, while net salary is the amount received after deductions.

• Gross salary includes all earnings such as basic salary, bonuses, and allowances.

• Net salary is calculated by deducting taxes, social security contributions, and other deductions from the gross salary.

• The formula for calculating net salary is: Net Salary = Gross Salary - (Tax + Social Security Contributions + Other Deductions)

• For example, if an employee's gross sala...read more

Exception handling is a mechanism to handle runtime errors in a program to prevent it from crashing.

• Exception handling is used to handle unexpected errors or exceptional conditions that may occur during program execution.

• It allows the program to gracefully recover from errors and continue executing.

• Common exception handling techniques include try-catch blocks, throw statements, and finally blocks.

• Examples of exceptions include divide by zero, file not found, and out of memory...read more

There are multiple structures in SAP HCM for different purposes.

• There are structures for personnel administration, organizational management, time management, payroll, and benefits

• Examples include P0000 for personnel administration, P0105 for organizational management, and P2006 for benefits

• Structures are used to store and organize data in SAP HCM

Cardinality in data modelling refers to the relationship between two entities in a database.

• It defines how many instances of an entity relate to instances of another entity.

• Cardinality can be one-to-one, one-to-many, many-to-one, or many-to-many.

• For example, a customer can have one or many orders, but an order can only belong to one customer.

• Cardinality is important in designing database relationships and ensuring data integrity.

I know several common Linux commands used for system administration and troubleshooting.

• ls - list directory contents

• cd - change directory

• pwd - print working directory

• cp - copy files and directories

• mv - move/rename files and directories

• rm - remove/delete files and directories

• grep - search for patterns in files

• chmod - change file permissions

• sudo - execute a command as a superuser

• top - display and update sorted information about processes

• df - report file system disk space usage

Scrum is an agile framework for managing work, with ceremonies like sprint planning, daily stand-ups, sprint review, and sprint retrospective.

• Scrum is an agile methodology used for managing software development projects.

• Key ceremonies in Scrum include sprint planning, daily stand-ups, sprint review, and sprint retrospective.

• Sprint planning involves defining the work to be done in a sprint.

• Daily stand-ups are short meetings where team members discuss progress and plan for the ...read more

Correspondent Party refers to a bank or financial institution that provides services to another bank or financial institution.

• Correspondent parties facilitate international transactions between banks

• They provide services such as wire transfers, foreign currency exchange, and clearinghouse services

• For example, Bank A in the US may use Bank B in Japan as a correspondent party to facilitate a transaction with Bank C in Japan