L2 Technical Support Engineer

10+ L2 Technical Support Engineer Interview Questions and Answers

Updated 12 Jul 2025
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Q. 1:What is mail migration?and what is pre-required things .

Ans.

Mail migration is the process of transferring email data from one email system to another.

  • Pre-required things include assessing the current email system, selecting a new email system, planning the migration process, and testing the new system.

  • Migration can be done manually or with the help of third-party tools.

  • Examples of email systems that can be migrated include Microsoft Exchange, Gmail, and Office 365.

  • Migration can be challenging and may require downtime for users.

  • Proper ...read more

Q. What is firewall .why we used firewall in our network ?

Ans.

Firewall is a network security system that monitors and controls incoming and outgoing network traffic.

  • Firewall is used to protect a network from unauthorized access and cyber attacks.

  • It can be hardware or software-based.

  • Firewall can be configured to allow or block specific traffic based on predefined rules.

  • It can also be used to restrict access to certain websites or applications.

  • Examples of firewall include Cisco ASA, Fortinet FortiGate, and pfSense.

Q. How do you add a domain in the O365 admin console?

Ans.

To add a domain in o365 admin console, go to the domains section and click on add domain.

  • Log in to the o365 admin console

  • Go to the domains section

  • Click on add domain

  • Enter the domain name and follow the prompts to verify ownership

  • Once verified, the domain will be added to the o365 tenant

Q. What is the FSMO role in Active Directory?

Ans.

FSMO (Flexible Single Master Operations) roles are specialized domain controllers that manage specific tasks in Active Directory.

  • There are 5 FSMO roles: Schema Master, Domain Naming Master, RID Master, PDC Emulator, and Infrastructure Master.

  • Schema Master: responsible for updating and managing the Active Directory schema.

  • Domain Naming Master: responsible for adding or removing domains in a forest.

  • RID Master: responsible for allocating RIDs (Relative Identifiers) to domain con...read more

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Q. How to implement endpoint security?

Ans.

Endpoint security can be implemented by using antivirus software, firewalls, and encryption.

  • Install and regularly update antivirus software on all endpoints

  • Configure firewalls to block unauthorized access to endpoints

  • Use encryption to protect sensitive data on endpoints

  • Implement access controls to limit user access to endpoints

  • Regularly monitor and audit endpoint activity for suspicious behavior

Asked in Huagong Tech

4d ago

Q. What is the difference between AC and DC current?

Ans.

AC current changes direction periodically while DC current flows in one direction only.

  • AC current is used in household appliances and power grids while DC current is used in batteries and electronic devices.

  • AC current can be easily transformed into different voltages while DC current cannot be transformed easily.

  • AC current is more dangerous to humans than DC current due to its ability to cause muscle contractions.

  • DC current is more efficient than AC current for long-distance ...read more

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Q. Which process is used in DHCP?

Ans.

DHCP uses a process called DORA to assign IP addresses to devices on a network.

  • DHCP stands for Dynamic Host Configuration Protocol

  • DORA stands for Discover, Offer, Request, Acknowledge

  • Discover: Client broadcasts a request for available DHCP servers

  • Offer: DHCP server responds with an IP address and other configuration information

  • Request: Client requests the offered IP address from the DHCP server

  • Acknowledge: DHCP server assigns the IP address to the client and confirms the leas...read more

3d ago

Q. What is the DORA process?

Ans.

DORA process is a methodology used to measure and improve DevOps performance.

  • DORA stands for DevOps Research and Assessment

  • It involves collecting data on four key metrics: lead time, deployment frequency, change failure rate, and time to restore

  • The data is used to identify areas for improvement and track progress over time

  • DORA process helps organizations to optimize their software delivery process and achieve better business outcomes

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Q. How do you handle calls from global users?

Ans.

I handle calls from global users by actively listening, empathizing, and providing clear and concise solutions.

  • I ensure that I understand the user's issue by asking clarifying questions

  • I acknowledge their frustration and show empathy towards their situation

  • I provide step-by-step instructions in a clear and concise manner

  • I follow up with the user to ensure that their issue has been resolved

  • I am sensitive to cultural differences and adjust my communication style accordingly

4d ago

Q. How do you troubleshoot system issues?

Ans.

System issues can be solved by identifying the root cause, troubleshooting the problem, and implementing a solution.

  • Identify the specific symptoms or error messages associated with the system issue.

  • Check system logs and event viewer for any clues on what might be causing the problem.

  • Perform basic troubleshooting steps such as restarting the system, checking for software updates, and running diagnostic tests.

  • Utilize troubleshooting tools like Task Manager, Event Viewer, and Sy...read more

Asked in 3i Infotech

4d ago

Q. How do you configure Outlook?

Ans.

Configuring Outlook system involves setting up email accounts, server settings, and personal preferences.

  • Open Outlook and click on 'File' tab

  • Select 'Add Account' and enter email address and password

  • Choose account type (IMAP, POP, Exchange) and enter server settings

  • Customize email settings, signatures, and notifications

  • Set up rules and filters for organizing emails

Asked in Techolution

2d ago

Q. What are transformers?

Ans.

Transformers are electrical devices that transfer energy from one circuit to another through electromagnetic induction.

  • Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

  • They consist of two coils of wire, known as the primary and secondary coils, which are wrapped around a magnetic core.

  • When an AC voltage is applied to the primary coil, it creates a magnetic field that induces a voltage in the secondary coil.

  • Transformers are ...read more

Q. What is electricity?

Ans.

Electricity is the flow of electrons through a conductor.

  • Electricity is a form of energy that powers most of our modern devices.

  • It is created by the movement of electrons from one atom to another.

  • Electricity can be generated by various sources such as coal, wind, solar, and hydro power.

  • It can be dangerous if not handled properly and can cause electric shock or fire.

  • Electricity is measured in units of volts, amps, and watts.

Asked in HCLTech

4d ago

Q. What is a ticketing tool?

Ans.

A ticketing tool is a software used by technical support teams to manage and track customer requests or issues.

  • Allows creation of tickets for customer issues

  • Assigns tickets to appropriate team members

  • Tracks status and progress of tickets

  • Provides reporting and analytics on ticket resolution

  • Examples: Jira, ServiceNow, Zendesk

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