100+ Technical Consultant Interview Questions and Answers

Interview for Technical Consultant with questions on C and Java differences, SQL queries, and company knowledge.

• Discuss differences between C and Java programming languages

• Provide an example of a SQL query to select all columns from a table

• Research and understand the company's background and values

• Be prepared for personal questions about your background and experience

• Emphasize practical experience and problem-solving skills

Spring is widely used in Java for building enterprise-level applications.

• Dependency Injection

• Aspect-Oriented Programming

• Spring MVC for web applications

• Spring Boot for microservices

• Spring Security for authentication and authorization

• Spring Data for database access

• Integration with other frameworks like Hibernate and Struts

• Support for testing with JUnit and Mockito

Family ipv6 route-target and default-route-target in Nokia 7750 bgp configuration.

• Family ipv6 route-target is used to import/export ipv6 routes within a VRF family

• Default-route-target is used to import/export ipv4 routes within a VRF family

• Family ipv6 route-target is configured under VRF family while default-route-target is configured under VRF

• Family ipv6 route-target is used for VPNv6 while default-route-target is used for VPNv4

Yes, I can cope with a new tool.

• I am adaptable and quick to learn new tools.

• I have experience in working with various tools and technologies.

• I am confident in my ability to understand and utilize new tools effectively.

Fields can be added to a physical file without compiling using SQL ALTER TABLE statement.

• Use ALTER TABLE statement to add fields to physical file.

• Syntax: ALTER TABLE library/file ADD COLUMN fieldname datatype

• Example: ALTER TABLE MYLIB/EMPLOYEE ADD COLUMN EMAIL VARCHAR(50)

Effective teaching involves understanding the students' learning styles, creating engaging lessons, and providing opportunities for practice and feedback.

• Identify the students' learning styles and adapt teaching methods accordingly

• Create interactive and engaging lessons that cater to different learning styles

• Provide opportunities for practice and feedback to reinforce learning

• Encourage active participation and collaboration among students

• Use real-life examples and case studie...read more

I minimize the impact of data migration on end users by thorough planning, communication, and training.

• Communicate with end users about the migration process and potential disruptions

• Conduct thorough testing to identify and address any issues before migration

• Provide training and support to end users to ensure a smooth transition

• Implement a rollback plan in case of unexpected issues

• Monitor the migration process closely to address any issues promptly

A constructor is a special method used to initialize objects in a class. The main OOPs concepts are encapsulation, inheritance, and polymorphism.

• A constructor is called automatically when an object is created.

• It has the same name as the class and does not have a return type.

• Constructors can be used to set initial values for object attributes.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows objects of different classes to be t...read more

Real-time examples of OOPs concepts in Java

• Inheritance: A car is a vehicle, so Car class can inherit from Vehicle class

• Polymorphism: A shape can be a circle or a square, so Shape class can have draw() method overridden by Circle and Square classes

• Encapsulation: A bank account has balance and transactions, but they are hidden from the user

• Abstraction: A TV remote has buttons to change channels and volume, but the user doesn't need to know how it works

Matt glaze has a non-reflective surface while glossy glaze has a shiny and reflective surface.

• Matt glaze has a rougher texture and is less slippery than glossy glaze.

• Glossy glaze is more durable and easier to clean than matt glaze.

• Matt glaze is often used for a more rustic or natural look while glossy glaze is used for a more modern or sleek look.

• Examples of matt glaze include unglazed terracotta and stoneware while examples of glossy glaze include porcelain and ceramic tiles...read more

MS SQL is a relational database management system developed by Microsoft. 'Delete' removes rows from a table, while 'drop' deletes the entire table.

• MS SQL is a relational database management system developed by Microsoft

• 'Delete' removes rows from a table

• 'Drop' deletes the entire table

The resolution any cmd in MPLS is used to check the resolution status of any label in the label forwarding information base (LFIB).

• Resolution any cmd is used to verify the status of a label in the LFIB.

• It helps in troubleshooting label resolution issues in MPLS networks.

• The command can be used to check the status of any label, not just the labels associated with a particular interface or prefix.

• The output of the command shows the label, the outgoing interface, and the next ho...read more

Programs can be installed on an I series system using various methods.

• Use the Install Program (INZPRM) command to install a program from a save file

• Use the Program Temporary Fix (PTF) process to install fixes and updates

• Use the Portable Application Solutions Environment (PASE) to install Linux-based programs

• Use the Integrated Web Application Server (IAS) to install web-based applications

Use BI Publisher's table properties to restrict the number of columns displayed on each page of an RTF template.

• Set the 'Columns Per Page' property in the table properties to 5.

• Adjust the layout of the table to fit only 5 columns per page.

• Consider using conditional formatting to hide additional columns if needed.

To create a JSF application in JDeveloper, follow these steps:

• Create a new JSF project in JDeveloper

• Add necessary libraries and dependencies

• Create JSF pages using drag and drop components

• Add managed beans for server-side logic

• Configure web.xml and faces-config.xml files

• Deploy and run the application

In an emergency situation during a call with a customer, it is important to stay calm, prioritize the customer's safety, communicate effectively, and escalate the issue if necessary.

• Remain calm and composed to avoid escalating the situation

• Assess the severity of the emergency and prioritize the customer's safety

• Communicate clearly and effectively with the customer, providing necessary instructions or guidance

• If required, escalate the issue to the appropriate team or superviso...read more

Yes, I am flexible with holidays pattern.

• I understand that the nature of consulting work may require me to work during holidays.

• I am willing to adjust my schedule to meet the needs of the project and the client.

• I am open to discussing holiday schedules and finding a solution that works for everyone.

• I have experience working during holidays and understand the importance of meeting deadlines and delivering quality work.

Planning infocubes are used for planning and forecasting data, while remote infocubes are used for accessing data from a remote system.

• Planning infocubes are used for budgeting, forecasting, and planning data.

• Remote infocubes are used for accessing data from a remote system, such as a different SAP system.

• Remote infocubes can be used for reporting on data from multiple systems.

• Planning infocubes can be used for creating scenarios and simulations.

• Both types of infocubes are us...read more

Rxjs is a library for reactive programming using Observables and Subscribers. forkJoins is a method for combining Observables.

• Rxjs is a library for reactive programming that allows you to work with asynchronous data streams.

• Observables are the source of data streams that can emit values over time.

• Subscribers are the consumers of these data streams that can subscribe to Observables and receive emitted values.

• forkJoins is a method for combining multiple Observables into a singl...read more

No, Java does not support pointers like in languages such as C or C++.

• Java uses references instead of pointers

• References in Java point to objects on the heap

• Example: String str = new String("Hello");

A copy constructor in Java is a special type of constructor that creates a new object by copying the values of an existing object.

• Copy constructor is used to create a new object with the same values as an existing object.

• It is typically used to create a deep copy of an object.

• The copy constructor has the same name as the class and takes an object of the same class as a parameter.

There is no limit to the number of tables that can be declared in an RPG program.

• Tables can be declared using the DCL-TBL statement.

• The number of tables that can be declared is limited only by the available memory.

• Each table can have its own unique name and structure.

• Tables can be used to store and manipulate data within the RPG program.

Listen to their perspectives, encourage open communication, find common ground, and work towards a compromise.

• Encourage open communication to understand each employee's perspective

• Listen actively and show empathy towards their opinions

• Find common ground and areas of agreement to build upon

• Work towards a compromise that addresses the concerns of all parties involved

findset false returns all records that do not meet the specified criteria, while findset true returns only the first record that meets the criteria.

• findset false returns multiple records, findset true returns only one record

• findset false is used for finding all records that do not meet the criteria

• findset true is used for finding the first record that meets the criteria

Modify true updates existing records, while modify and insert updates existing records and inserts new ones if needed.

• Modify true only updates existing records in the database

• Modify and insert updates existing records and inserts new ones if they do not already exist

• Modify true is used when you only want to update existing data

• Modify and insert is used when you want to update existing data and insert new data if necessary

To select 100 lines in a table in SQL, we can use the LIMIT clause.

• Use the LIMIT clause in SQL to specify the number of rows to return.

• The syntax is: SELECT * FROM table_name LIMIT 100;

• You can also use OFFSET to skip a certain number of rows before starting to return rows, for example: SELECT * FROM table_name LIMIT 100 OFFSET 50;

Variables are containers used to store data in a program. They can hold different types of data such as numbers, strings, or boolean values.

• Variables are used to store data in a program and can be assigned different values.

• Types of variables include integers (int), floating-point numbers (float), strings (str), and boolean values (bool).

• Examples of variables: int age = 25; float price = 10.99; str name = 'John'; bool isTrue = true;

Matchcode W is a tool in SAP used for searching and selecting data records based on specific criteria.

• Matchcode W is used in SAP to search for data records based on key fields.

• It helps users to quickly find and select relevant data entries.

• Users can define search criteria and display fields for the search results.

• Matchcode W can be used in various SAP modules such as MM, SD, and FI.

• For example, in SAP SD, Matchcode W can be used to search for customer master data based on cus...read more

VRRP state change into dual master occurs when both routers in the group claim to be the master.

• VRRP is a protocol used to provide redundancy for IP networks.

• Dual master occurs when both routers in the group claim to be the master.

• This can happen when there is a communication issue between the routers or when both routers have the same priority level.

• To prevent dual master, priority levels should be set appropriately and communication between routers should be monitored.

• Dual ...read more

I have extensive experience in substation testing and commissioning.

• I have worked on multiple substation projects, both in testing and commissioning phases.

• I am familiar with the various equipment and systems used in substations, such as transformers, circuit breakers, relays, and control systems.

• I have conducted thorough testing of substation equipment to ensure proper functionality and adherence to specifications.

• I have participated in the commissioning process, which invol...read more

Errors in RPG programs can be checked using various tools and techniques.

• Compile the program with the appropriate compiler options to check for syntax errors

• Use debuggers and tracing tools to identify runtime errors

• Analyze job logs and dump files to diagnose program errors

• Use third-party tools like X-Analysis and Hawkeye to identify and fix errors

There are mainly two types of arrays: Single-dimensional and Multi-dimensional. I have used both in various projects.

• Single-dimensional arrays are used to store a list of values of the same data type.

• Multi-dimensional arrays are used to store values in a matrix format with rows and columns.

• I have used single-dimensional arrays to store user input data and multi-dimensional arrays to store data in a tabular format.

• For example, I have used a single-dimensional array to store a ...read more

A diode is a semiconductor device that allows current to flow in one direction only. The terminal of a diode includes an anode and a cathode.

• Diodes are commonly used in rectifier circuits to convert AC to DC.

• The anode of a diode is the positive terminal, while the cathode is the negative terminal.

• Diodes have a forward voltage drop, typically around 0.7V for silicon diodes.

• Reverse biasing a diode blocks current flow.

• Zener diodes are used for voltage regulation.

Networking is the process of connecting devices and systems to share resources and communicate with each other.

• Networking involves the use of hardware and software to connect devices and systems.

• It allows for the sharing of resources such as files, printers, and internet connections.

• Networking also enables communication between devices and systems, allowing for the exchange of data and information.

• Examples of networking technologies include Ethernet, Wi-Fi, and Bluetooth.

• Netw...read more

Adding new fields to an existing system using generic extraction in real time scenario

• Identify the data source for the new fields

• Create a generic extraction program to extract the data

• Map the extracted data to the existing system's data structure

• Test the extraction and integration process

• Implement the new fields in the system

Binding programs in RPGILE involves specifying the program name and library in the binding directory.

• Create a binding directory using CRTBNDDIR command

• Add the program to the binding directory using ADDLIBLE command

• Specify the program name and library in the binding directory using the BNDDIR parameter in the CRTPGM command

• Use the CALL statement to call the program

To declare a file in CL program, use the DCLF command followed by the file name.

• Use the DCLF command followed by the file name to declare a file in CL program.

• The file name should be enclosed in parentheses.

• The file must be defined in the program's file description.

• Example: DCLF FILE(MYFILE)

• The file can then be used in the program using its declared name.

XFOOT is a command used in SAS software to display the contents of a SAS data set.

• XFOOT command is used to display the contents of a SAS data set in the SAS log.

• It displays the number of observations and variables in the data set.

• It also displays the size of the data set in bytes.

• XFOOT command can be used in conjunction with other SAS commands like PROC PRINT and PROC SORT.

• Example: XFOOT; PROC PRINT data=dataset; RUN;

Packed decimal and zoned decimal are two common data formats used in mainframe systems.

• Packed decimal is a binary-coded decimal format that stores two digits in each byte, with the last nibble used for sign.

• Zoned decimal is a format that uses one byte to store each digit, with the last byte used for sign.

• Packed decimal is more space-efficient than zoned decimal, but requires more processing power to convert to and from decimal.

• Zoned decimal is easier to read and understand, b...read more

To correct an invalid characteristics, I would first identify the root cause, make necessary adjustments, and validate the changes.

• Identify the specific characteristics that are invalid

• Determine the root cause of the invalid characteristics

• Make necessary adjustments to correct the invalid characteristics

• Validate the changes to ensure the characteristics are now valid

The answer to the question is to perform a join operation on the table to retrieve the manager name with respective employee name.

• Use a SQL query to join the table on the manager ID

• Select the manager name and employee name from the joined table

• Display the manager name with respective employee name

Custom metadata is customizable, deployable, and upgradeable application metadata, while custom settings are application settings that can be accessed using Apex code.

• Custom metadata is deployable and upgradeable, while custom settings are not

• Custom metadata is customizable at the field level, while custom settings are not

• Custom metadata can be accessed in Apex using SOQL queries, while custom settings can be accessed using Apex code

COE of raw materials in ceramics refers to the coefficient of thermal expansion.

• COE determines how much a material will expand or contract with temperature changes.

• It is important to consider when selecting raw materials for ceramic production.

• Examples of raw materials with different COE values include alumina, silica, and zirconia.

• COE can also be adjusted by adding certain materials to the ceramic mixture.

Compile command in RPG program is used to convert source code into executable code.

• Compile command is used to check for syntax errors and generate object code

• The command is usually RUNCL or CRTRPGMOD

• The compiled program can be executed using CALL or CALLB

• Example: RUNCLPGM PGM(MYLIB/MYPROG) SRCFILE(MYLIB/MYSRC)

• Example: CRTRPGMOD MODULE(MYLIB/MYPROG) SRCFILE(MYLIB/MYSRC)

Datasets refer to collections of data that are organized in a structured format for analysis and processing.

• Datasets are structured collections of data points that are organized for analysis.

• They can be in various formats such as tables, spreadsheets, databases, or files.

• Examples of datasets include customer information, sales data, and research findings.

• Datasets are used in data analysis, machine learning, and statistical modeling.

List is mutable and tuple is immutable in Python.

• List is defined using square brackets [], while tuple is defined using parentheses ().

• Elements in a list can be changed, added, or removed, while elements in a tuple cannot be changed once defined.

• Lists are used for collections of items that may need to be modified, while tuples are used for fixed collections of items.

• Example: list_example = [1, 2, 3] and tuple_example = (4, 5, 6)

I use a variety of teaching strategies to cater to different learning styles and engage learners.

• I assess the learning style of each individual and tailor my teaching approach accordingly.

• I use a combination of lecture, discussion, hands-on activities, and multimedia resources to keep learners engaged.

• I encourage active participation and provide opportunities for learners to apply what they have learned.

• I provide regular feedback and support to help learners achieve their goa...read more