Office 365 Interview Questions and Answers 1

Give a short introduction about yourself?

I’m “YourName” having X years of experience in Messaging and Collaboration Support. Currently working in so and so company for the last 5 years and handling On-Premise Exchange and Office 365 Environment for X number of users. We are currently migrating mailbox to office 365 and almost half of the mailbox migrated to Office 365. I’m working on the Office 365 migration project from the beginning and involved in on the planning and execution. I have learned many things during my Office 365 migration project and having good troubleshooting skills related for Office 365. I’m very much interested in working on Messaging Services and will love to explore new things related to messaging and collaboration service.


Give a short explanation about the infrastructure that you are supporting?

I’m supporting a Single Forest domain with Hybrid Exchange environment for X number of users with AD connect, ADFS and Enterprise Pack E3 licenses assigned for all the Office 365 Users. In addition, we use EMS E3 license for Mobility and Security requirements. Currently we are in the migration stage migrating mailboxes in phases. We have a plan to migrate almost all the users and will retain few mailboxes in On-Premise for company’s compliance and security requirement. In parallel, we are enabling services like SharePoint Online and other Office 365 services for users.

What are the day to day activities that you do as an Office 365 Admin?

I will schedule the mailboxes for migration, we are migrating 500 user to Office 365 on daily basis. In addition, Service Health check and Monitoring the message center alerts are the main task that we do on daily basis. We have a list of things to check to ensure the service is healthy and users are able to access office 365 services without any issues. We have 24/7 operations support who takes care of reported issues. I will be assigned with tickets to work on an issue, and we follow strict SLA to ensure the tickets are closed on time. Migration schedules will be there, I will work on them and address the issues if any during the migration.

How you started the Office 365 Migration?

Our IT leaders approved On-Premise Exchange to Office 365 migration. Different teams were involved in the planning and Corporate Security was involved to do the security assessment.

  1. We did a network performance analysis from different location to see if any bandwidth increase to be done using psping, tracert tools. Internet Proxy exceptions were configured on all client machines to route the office 365 related traffic via firewall.
  2. The security controls that was defined by corporate security are validated to see the options available in Office 365 / Azure to implement it.
  3. We started the planning, like domain name in Office 365, capacity planning on Directory Synchronization and ADFS for federated authentication etc.
  4. Once finalized, we bought the Office 365 subscription (Enterprise E3 & EMS E3) and deployed the services in order like deploying AD connect and then ADFS, running hybrid configuration etc.
  5. We did a pilot move and perform a complete use case validations and show case the results to leadership team and Corporate Security Team.
  6. After their approval, we started to migrate the mailboxes to Office 365.

What are the tools that you used to do the network assessment for Office 365?

Ping Test, Ps Ping, Tracert to Office 365 urls. We used these tools to check the network latency and to ensure the office 365 nearest datacenter IP address are resolving to our requests.

What are the security controls that are implemented in your environment?

Inform the interviewer that it is big list. For example, the office 365 services will be fully functional from Azure AD Managed computers and on the personal devices, users will have read only access. We achieved this via Azure conditional access policies.

What do you know about Office 365?

Office 365 is a cloud-based service from Microsoft that offers access to Office applications like word excel and other productivity tools like Skype Online, Exchange Online and One Drive for Business online. Office 365 includes plans for use at home and business. Services available or enabled to you based on the subscription plan that you are choosing from Microsoft.

What are the subscription available for purchase from Office 365?

  • For home, we have three products as Office 365 home, Office 365 Personal and Office Home & Student 2016 for PC
  • For Business, Microsoft has three products as Office 365 Business, Office 365 Business Premium and Office 365 Business Essentials
  • For Enterprise, Microsoft has four products as Office 365 Pro Plus, Office 365 Enterprise E1, Office 365 Enterprise E3 and Office 365 Enterprise E5.

Apart from the above many add on services like Azure AD Premium P2, Azure Information Protection Plan are available which can be purchased as a stand-alone service based on the business requirement.

What are the services included in Enterprise E3 Plan?

Most of the companies normally prefer Office 365 Enterprise E3 Plan because that has the required services that can operate an enterprise Organizations. Below services are included in Office 365 Enterprise E3 Plan

You can run the below command to check the service status.

(Get-MsolAccountSku | where {$_.AccountSkuId -eq ‘TenantName:ENTERPRISEPACK’}).ServiceStatus

What are the additional services available in Office 365 Enterprise E5 Plan?

Office 365 Enterprise E5 Plans includes all the servers available in Enterprise E3 Plans plus

Customer Lockbox, Advanced Data Governance and Security, Office 365 Cloud App Security, Power Bi Pro, Audio Video Conferencing and Fast Track deployment support.

What is Enterprise Mobility and Security Service in office 365?

Enterprise Mobility and Security (EMS) provides a security solution for the challenges in mobile first cloud first situation. EMS not only protect the organization identity it also identifies security breaches before they cause damage.

Microsoft Office 365 2 plans with Enterprise Mobility plus Security

  • Enterprise Mobile + Security E3 includes Azure Active Directory Premium P1, Microsoft Intune, Azure Information Protection Premium P1, and Microsoft Advanced Threat Analytics.
  • Enterprise Mobile + Security E5 includes Azure Active Directory Premium P2, Azure Information Protection Premium P2 and Microsoft Cloud App Security.

Explain the Enterprise Mobility Security services?

Below are the Enterprise Mobility and Security E3 Services

  • Azure Active Directory Premium P1 – AAD Premium P1 provides a secure single sign on to cloud and on-premise apps. MFA, Conditional access and advanced security reporting.
  • Microsoft Intune: Intune provides mobile device and app management to protect corporate apps and data on any device.
  • Azure Information Protection Premium P1: AIP Premium P1 provide encryption for all files and emails across cloud and on premises storage location. Cloud based files tracking can be achieved.
  • Microsoft Advanced Threat Analytics: ATA provides protection from advanced targeted attacks by using user behavioral analytics

Below are the Enterprise Mobility and Security E5 Services

  • Azure Active Directory Premium P2: AAD Premium P2 provides AAD Premium P1 features + Identity and Access Management with advanced protection for users and privileged identities.
  • Azure information Protection Premium P2: AIP Premium P2 provides AIP Premium P1 features + intelligent classification and encryption for files and emails shared inside and outside organization.
  • Microsoft Cloud App Security: CAS provides enterprise grade visibility, control and protection for your cloud applications.

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