40+ STM Gear Drives Interview Questions and Answers

Relationships in databases define how entities are related to each other. Types include one-to-one, one-to-many, and many-to-many.

• One-to-one relationship: Each record in one table is related to only one record in another table.

• One-to-many relationship: Each record in one table can be related to multiple records in another table.

• Many-to-many relationship: Multiple records in one table can be related to multiple records in another table.

• Examples: A customer can have multiple or...read more

MFA is a security process that requires multiple forms of verification to access an account or system.

• MFA combines two or more authentication factors such as passwords, biometrics, security tokens, etc.

• It provides an extra layer of security to prevent unauthorized access.

• Examples of MFA include using a password along with a fingerprint scan or receiving a code on your phone to log in.

• MFA is commonly used in online banking, email accounts, and other sensitive systems.

Profile and permissions set determine the level of access and capabilities a Technical Support Engineer has within a system.

• Profile defines the roles and responsibilities of the Technical Support Engineer within the organization.

• Permissions set specifies what actions the Technical Support Engineer can perform within the system.

• Examples of permissions include read-only access, write access, delete access, etc.

Screen flow is user interface driven while record trigger flow is backend logic driven.

• Screen flow is used to create user interfaces for users to interact with, while record trigger flow is used to automate processes and perform actions in the background.

• Screen flow is typically used for creating visual workflows with screens, fields, and buttons, while record trigger flow is used for executing logic based on record changes or events.

• Screen flow can be used to guide users thr...read more

OWD determines the default level of access users have to records in an organization.

• OWD settings control who can view, edit, and delete records in Salesforce

• OWD can be set to private, public read-only, public read/write, or controlled by parent

• OWD can be further customized with sharing rules and manual sharing

• Example: Setting OWD to private means only record owners and users above them in the role hierarchy can access the records

TCP Handshake is a process of establishing a connection between two devices over a network.

• TCP Handshake involves three-way communication between the client and server

• The client sends a SYN packet to the server to initiate the connection

• The server responds with a SYN-ACK packet to acknowledge the request

• Finally, the client sends an ACK packet to confirm the connection

• This process ensures reliable and error-free communication between devices

Assignments rule and their types in technical support engineering.

• Assignments rule determines how assignments are made in a system.

• Types of assignments rules include assignment rules based on skills, round robin, load balancing, etc.

• For example, in a technical support team, assignments rule based on skills may assign tickets to agents with specific expertise.

• Round robin assignments rule distributes assignments evenly among team members.

• Load balancing assignments rule distribu...read more

Workflow and Process Builder are tools in Salesforce that automate business processes without code.

• Workflow is a declarative automation tool that allows you to set up automated rules to perform actions based on certain criteria.

• Process Builder is a more advanced tool that allows you to create more complex processes with multiple criteria and actions.

• Both tools help streamline and automate business processes in Salesforce.

• Examples: Using Workflow to automatically assign a lead...read more

Workflow automates simple processes, while Process Builder allows for more complex processes with multiple criteria and actions.

• Workflow is used for automating simple tasks based on criteria and actions.

• Process Builder allows for more complex processes with multiple criteria and actions.

• Workflow is limited in functionality compared to Process Builder.

• Process Builder can update related records, send emails, create records, etc.

• Process Builder can evaluate multiple criteria bef...read more

Mixed DML error occurs when DML operations on setup and non-setup objects are mixed in a single transaction.

• Occurs when DML operations on setup and non-setup objects are mixed

• Setup objects include User, Profile, PermissionSet, etc.

• Non-setup objects include custom objects, standard objects, etc.

SSL VPN is a secure way to remotely access a private network over the internet using SSL encryption.

• SSL VPN uses SSL/TLS encryption to secure the connection between the remote user and the private network

• It allows remote users to access resources on the private network as if they were physically present on the network

• SSL VPN can be clientless or require a client software to be installed on the remote device

• Examples of SSL VPN solutions include Cisco AnyConnect, Pulse Secure, ...read more

Asynchronous Apex code to group opportunities by AccountId

• Create a Queueable Apex class to handle the asynchronous processing

• Query the opportunities and group them by AccountId using a Map

• Implement the execute method to process the opportunities and return the grouped data

Validation rules are used to enforce data integrity in a database before and after insertion.

• Validation rules before insert are used to check data integrity before adding a new record to the database.

• Validation rules after insert are used to verify data integrity after a new record has been added.

• Examples: Before insert - checking if a required field is filled, after insert - verifying if the data meets certain criteria.

DNS (Domain Name System) is a system that translates domain names to IP addresses.

• DNS works by translating human-readable domain names (like google.com) to IP addresses (like 172.217.3.206).

• DNS records include A records (for IPv4 addresses), AAAA records (for IPv6 addresses), CNAME records (for aliases), MX records (for mail servers), and more.

• DNS queries are sent from client devices to DNS servers, which then resolve the domain name to the corresponding IP address.

• DNS operat...read more

A grand parent child trigger scenario involves triggering an action in a child record based on changes in a grandparent record.

• Create a trigger on the grandparent object to monitor changes

• Use a trigger handler class to handle the logic for updating child records

• Consider using trigger context variables to pass data between the grandparent and child triggers

Trigger code to update a field in a table when a new record is inserted

• Create a trigger on the table for INSERT events

• Use the NEW keyword to access the newly inserted record

• Update the desired field in the table using the NEW values

Handling escalations and approach to issue resolution in support as a developer

• I understand the importance of timely resolution of issues and the impact it has on customer satisfaction

• My approach is to first gather all necessary information and analyze the root cause of the issue

• I then prioritize the issue based on its severity and impact on the customer

• I communicate effectively with the customer and keep them updated on the progress of the resolution

• If necessary, I escalate ...read more

I prioritize cases based on urgency, utilize efficient troubleshooting techniques, and delegate tasks when necessary.

• Prioritize cases based on urgency to ensure critical issues are addressed first

• Utilize efficient troubleshooting techniques to quickly resolve common issues

• Delegate tasks to team members to handle multiple cases simultaneously

There are multiple ways to share a record with a user in Salesforce.

• Sharing rules

• Manual sharing

• Role hierarchy

• Criteria-based sharing rules

• Team sharing

Dynamic dashboards update in real-time with live data, while static dashboards display fixed data snapshots.

• Dynamic dashboards are interactive and update automatically with real-time data

• Static dashboards display fixed data snapshots and do not update automatically

• Use dynamic dashboards for monitoring real-time metrics like website traffic or sales performance

• Use static dashboards for historical data analysis or monthly reports

Bucket field in reports is a way to group data into categories for easier analysis.

• Bucket field allows you to categorize data based on specific criteria

• It helps in organizing and summarizing data in reports

• Examples of bucket fields include grouping sales data by region or categorizing leads by source

Different types of sandboxes include developer sandbox, configuration sandbox, and full sandbox. Each sandbox has a different refresh cycle.

• Developer sandbox: used for coding and testing, refreshes every 5 days

• Configuration sandbox: used for configuration changes, refreshes every 1 month

• Full sandbox: replica of production environment, refreshes every 29 days

Resource allocation requires careful planning and consideration of various factors.

• Identify the goals and objectives of the project

• Assess the available resources and their capabilities

• Prioritize the tasks and allocate resources accordingly

• Consider the timeline and deadlines

• Monitor and adjust the allocation as needed

Tableau uses Tableau Server for optimization of deployments.

• Tableau Server provides centralized management and scalability for Tableau deployments.

• It allows for easy sharing and collaboration of dashboards and data sources.

• Tableau Server also offers features such as load balancing, failover, and backup and recovery.

• It can be deployed on-premises or in the cloud, depending on the organization's needs.

• Tableau also offers a tool called Tableau Prep Conductor for managing data pr...read more

Authentication is the process of verifying the identity of a user, while authorization is the process of granting access to specific resources.

• Authentication confirms the identity of a user through credentials such as username and password.

• Authorization determines what resources a user can access based on their authenticated identity.

• Authentication is the first step in the authorization process.

• Examples of authentication include biometric identification, two-factor authentica...read more

Create a trigger on child object to update parent object when all related child records have a closed status.

• Create a trigger on the child object to run before insert and update events.

• Query all related child records in the trigger context.

• Check if all child records have a closed status.

• Update the parent object if all child records have a closed status.

Custom Settings are hierarchical data that can be accessed using Apex code, while Custom Metadata are records that can be accessed using SOQL queries.

• Custom Settings are hierarchical data that can be accessed using Apex code, while Custom Metadata are records that can be accessed using SOQL queries.

• Custom Settings are used to store data that is organization-specific, while Custom Metadata is used to store metadata that can be deployed between orgs.

• Custom Settings can be acces...read more

The command used for clearing cookies varies depending on the web browser being used.

• In Google Chrome, the command is 'chrome://settings/clearBrowserData'

• In Mozilla Firefox, the command is 'Options > Privacy & Security > Cookies and Site Data > Clear Data'

• In Microsoft Edge, the command is 'Settings > Privacy, search, and services > Clear browsing data > Choose what to clear'

• In Safari, the command is 'Safari > Preferences > Privacy > Manage Website Data > Remove All'

I am currently working on developing a new feature for our company's website to improve user experience.

• Researching user feedback and analyzing data to identify areas for improvement

• Collaborating with designers and developers to create wireframes and prototypes

• Implementing and testing the new feature to ensure functionality and usability

• Gathering feedback from users through surveys and usability testing

• Iterating on the feature based on feedback and data analysis

Managing stakeholders involves identifying their needs, communicating effectively, and building strong relationships.

• Identify key stakeholders and their interests

• Communicate regularly and transparently

• Build trust and rapport through active listening and responsiveness

• Address concerns and conflicts proactively

• Involve stakeholders in decision-making processes

• Monitor and evaluate stakeholder engagement

• Adjust strategies as needed to meet stakeholder needs

Queueable and Future Apex are both ways to run processes asynchronously in Salesforce, but they have some key differences.

• Queueable allows chaining of jobs and implements the Queueable interface, while Future Apex does not support chaining.

• Queueable jobs can be monitored and managed through the Apex Jobs page in Salesforce, while Future Apex jobs cannot be monitored in the same way.

• Queueable jobs have a limit of 50 jobs in the queue per transaction, while Future Apex has a li...read more

Design a live streaming platform for seamless video streaming experience.

• Implement a robust video encoding and transcoding system to support various devices and internet speeds.

• Utilize a content delivery network (CDN) to reduce latency and ensure high-quality streaming.

• Incorporate adaptive bitrate streaming to adjust video quality based on user's internet connection.

• Include features like live chat, viewer analytics, and monetization options for content creators.

• Ensure scalabi...read more

Our product is a cloud-based project management software that streamlines team collaboration and increases productivity.

• Our software offers real-time communication and task tracking features.

• It allows for easy delegation of tasks and project timelines.

• Integrates with popular tools like Slack and Trello.

• Customizable dashboards and reporting for project progress.

• Affordable pricing plans for businesses of all sizes.

Yes, I am willing to travel for the role.

• I am open to traveling for work-related purposes.

• I understand that travel may be required for client meetings or training sessions.

• I am flexible and adaptable to different travel schedules and destinations.

Decorators in LWC are used to add metadata to class properties or methods.

• Decorators are declared with the @ symbol before the name, like @api or @wire.

• They are used to define public properties, wire adapters, and event handlers in LWC.

• Example: @api property or @wire(getRecord, { recordId: '$recordId' }) wired method.

High level system design involves creating an abstract representation of the system and its components.

• Identify the system's main components and their interactions

• Determine the system's architecture and design patterns

• Consider scalability, reliability, and maintainability

• Use diagrams and models to visualize the system's structure and behavior

Designing Ms Teams involves creating channels, setting up permissions, integrating apps, and customizing notifications.

• Create different channels for different teams or projects

• Set up permissions to control access to channels and files

• Integrate apps like Trello, Asana, or Salesforce for seamless workflow

• Customize notifications to ensure important messages are not missed

A palindrome for a string is a word, phrase, number, or other sequence of characters that reads the same forward and backward.

• Check if the string is equal to its reverse to determine if it is a palindrome.

• Ignore spaces and punctuation when checking for palindromes.

• Examples: 'racecar', 'madam', '1221'