In this comprehensive list of 100 technical interview questions, we delve into the realm of Microsoft Teams Unified Communication. Covering a range of topics from protocols like SIP and the roles of various servers in the architecture to the specifics of Microsoft Teams and Skype for Business functionalities, these questions are designed to assess a candidate’s depth of knowledge in Unified Communication engineering.
The questions touch upon essential aspects such as call routing, security measures, integration capabilities, and administrative tasks within the Microsoft ecosystem.
Whether exploring the intricacies of voice communication, video conferencing, or collaboration tools, these questions aim to evaluate a candidate’s proficiency in deploying, configuring, and troubleshooting Microsoft Unified Communication solutions.
With a focus on simplicity, these interview questions provide a comprehensive overview of the technical expertise required for roles in Microsoft Unified Communication.
| How does SIP (Session Initiation Protocol) work in the context of Microsoft Unified Communication? |
| Explain the purpose of Microsoft Exchange Server in a Unified Communication setup. |
| What is the role of Active Directory in Microsoft Unified Communication? |
| How does Microsoft Teams handle real-time communication and collaboration? |
| Can you differentiate between Skype for Business and Microsoft Teams? |
| What are the key components of a PSTN (Public Switched Telephone Network) in the Microsoft Unified Communication environment? |
| Explain the concept of Enterprise Voice in Skype for Business. |
| How does Direct Routing enhance the capabilities of Microsoft Teams for telephony? |
| Describe the significance of Edge Servers in Microsoft Unified Communication. |
| What is the purpose of a Front End Server in Skype for Business? |
| Explain the process of call routing in Microsoft Teams. |
| How does Microsoft Unified Messaging integrate with Exchange Server? |
| What is the role of a Mediation Server in Skype for Business? |
| Describe the function of a Reverse Proxy Server in Microsoft Unified Communication. |
| How does Persistent Chat enhance collaboration in Microsoft Teams? |
| Explain the concept of federation in the context of Microsoft Unified Communication. |
| What is the purpose of Location-Based Routing in Skype for Business? |
| How does Microsoft Teams ensure security and compliance for communication and data sharing? |
| Describe the process of implementing call admission control in Skype for Business. |
| What are the key features of Microsoft Cloud Connector Edition (CCE)? |
| Explain the role of a Voice Gateway in the integration of PSTN with Microsoft Teams. |
| How does Microsoft Teams handle the integration of third-party applications and services? |
| Describe the function of a Reverse Proxy Server in Microsoft Unified Communication. |
| How does Microsoft support E911 (Enhanced 911) in the context of Unified Communication? |
| Explain the purpose of the Skype for Business Monitoring Server. |
| How does Microsoft ensure high availability in Unified Communication deployments? |
| Describe the role of a Trusted Application in the Microsoft Teams architecture. |
| What is the purpose of the Call Quality Dashboard in Skype for Business? |
| How does Microsoft Unified Communication handle multi-factor authentication for enhanced security? |
| Explain the concept of call parking in Skype for Business. |
| What is the purpose of the Call Via Work feature in Microsoft Teams? |
| How does Microsoft Teams handle the integration of voice and video calls with other Office 365 applications? |
| Describe the process of setting up and configuring voicemail in Microsoft Unified Communication. |
| How does Microsoft Teams handle the integration of mobile devices for communication and collaboration? |
| Explain the concept of Call Admission Control in the context of Skype for Business. |
| What is the purpose of the SQL Server database in Microsoft Unified Communication? |
| How does Microsoft Teams handle the integration of external users and guests? |
| Describe the process of configuring and managing call forwarding in Skype for Business. |
| Explain the role of the Skype for Business Control Panel in administration and configuration. |
| What are the key considerations for capacity planning in a Microsoft Unified Communication environment? |
| How does Microsoft Teams handle the integration of telephony features with the desktop client? |
| Describe the process of configuring and managing response groups in Skype for Business. |
| Explain the purpose of the Skype for Business Edge Server in external communication. |
| How does Microsoft Teams handle the integration of video conferencing and screen sharing? |
| What is the purpose of the Skype for Business Persistent Chat Server? |
| Describe the process of implementing and managing call forwarding in Microsoft Teams. |
| How does Microsoft Unified Communication support the integration of IP phones and peripherals? |
| Explain the concept of Location-Based Routing in the context of Skype for Business. |
| What are the key security features in Microsoft Teams to protect against unauthorized access and data breaches? |
| Describe the process of configuring and managing dial plans in Skype for Business. |
| How does Microsoft Teams handle the integration of voicemail and transcription services? |
| Explain the role of the Skype for Business Response Group Service in call routing. |
| What is the purpose of the Skype for Business Archiving Server? |
| Describe the process of configuring and managing call queuing in Microsoft Teams. |
| How does Microsoft Teams handle the integration of external applications and bots? |
| Explain the concept of Enterprise Voice Routing in Skype for Business. |
| What is the purpose of the Skype for Business Monitoring Database? |
| How does Microsoft Teams ensure data retention and compliance with regulatory requirements? |
| Describe the process of configuring and managing conference policies in Skype for Business. |
| How does Microsoft Unified Communication handle the integration of voicemail with email? |
| Explain the role of the Skype for Business Attendant Console in call management. |
| What are the key considerations for network bandwidth planning in Microsoft Teams deployments? |
| Describe the process of configuring and managing call delegation in Skype for Business. |
| How does Microsoft Teams handle the integration of meeting scheduling and coordination? |
| What is the purpose of the Skype for Business Location Information Service? |
| Explain the concept of Call Via Work in the context of Microsoft Unified Communication. |
| How does Microsoft Teams handle the integration of file sharing and collaboration? |
| Describe the process of configuring and managing emergency calling in Skype for Business. |
| What are the key features of the Skype for Business Persistent Chat Compliance Database? |
| How does Microsoft Teams handle the integration of external telephony providers? |
| Explain the role of the Skype for Business Mobility Service in mobile communication. |
| What is the purpose of the Skype for Business Central Management Store? |
| Describe the process of configuring and managing external access in Microsoft Teams. |
| How does Microsoft Teams handle the integration of security and compliance features? |
| What are the key considerations for deploying Microsoft Teams in a hybrid environment? |
| Explain the concept of the Skype for Business Planning Tool in deployment planning. |
| How does Microsoft Unified Communication handle the integration of voicemail transcription services? |
| Describe the process of configuring and managing call pickup in Skype for Business. |
| What is the purpose of the Skype for Business Address Book Service? |
| How does Microsoft Teams handle the integration of audio conferencing and dial-in capabilities? |
| Explain the role of the Skype for Business Shared Line Appearance feature. |
| What are the key features of the Skype for Business Call Park Service? |
| Describe the process of configuring and managing call parking in Microsoft Teams. |
| How does Microsoft Unified Communication handle the integration of emergency calling services? |
| What is the purpose of the Skype for Business Archiving Database? |
| Explain the concept of Location-Based Routing in the context of Microsoft Teams. |
| How does Microsoft Teams handle the integration of compliance recording for calls? |
| Describe the process of configuring and managing voicemail policies in Skype for Business. |
| What are the key considerations for deploying Microsoft Teams in a large-scale enterprise? |
| How does Microsoft Unified Communication handle the integration of call admission control for media traffic? |
| Explain the role of the Skype for Business Registrar service in user registration. |
| What is the purpose of the Skype for Business Reverse Proxy Server? |
| Describe the process of configuring and managing voice policies in Microsoft Teams. |
| How does Microsoft Teams handle the integration of call quality and diagnostics? |
| What are the key features of the Skype for Business Client Policy service? |
| Explain the concept of Location-Based Routing in the context of Microsoft Unified Communication. |
| How does Microsoft Unified Communication handle the integration of presence information? |
| Describe the process of configuring and managing call blocking in Skype for Business. |
| What is the purpose of the Skype for Business Front End pool? |
| How does Microsoft Teams handle the integration of compliance features for chat and messaging? |
Q101) What settings in the Microsoft Teams admin centre are appropriate to make the new Dallas number the default audio conferencing bridge?
A. the Meetings/Conference bridging node
B. the Locations > Networks & Locations node
C. the Voice node’s Phone numbers node
D. the Voice node for the Auto attendants
Answer: A) the Meetings/Conference bridging node
Explanation: To designate the new Dallas number as the default audio conferencing bridge in Microsoft Teams, you need to configure the settings in the Meetings/Conference bridging node of the Microsoft Teams admin centre.
Q102) What should you do in Microsoft Teams Voice Engineer (MS-720) to develop a new tenant dial plan for a new nation?
A. Execute the cmdlet New-CsOnlineVoiceRoutingPolicy.
B. Choose Voice, Dial Plan, and Add from the Microsoft Teams admin centre.
C. Select Locations, Network topology, and Add from the Microsoft Teams admin centre.
D. Execute the cmdlet Set-CsTenantDialPlan.
Answer: B) Choose Voice, Dial Plan, and Add from the Microsoft Teams admin centre.
Explanation: To create a new tenant dial plan that complies with the dialling specifications of a new nation, you should choose Voice, Dial Plan, and Add from the Microsoft Teams admin centre.
Q103) What is the initial step to make User1 available as an agent in a call queue in a Direct Routing-enabled Microsoft Teams Phone deployment?
A. Assign a dial plan to User1.
B. Assign a phone number to User1.
C. Enable hosted voicemail for User1.
D. Enable Enterprise Voice for User1.
Answer: D) Enable Enterprise Voice for User1.
Explanation: To make User1 available as an agent in a call queue in a Direct Routing-enabled Microsoft Teams Phone deployment, you need to enable Enterprise Voice for User1.
Q104) In Microsoft Teams Voice Engineer (MS-720), what settings should be made to inform a group of users when an emergency number is called?
A. an emergency calling policy
B. a calling policy
C. an emergency call routing policy
D. a voice routing policy
Answer: A) an emergency calling policy
Explanation: To inform a group of users when an emergency number is called in Microsoft Teams Voice, you should configure an emergency calling policy in the Microsoft Teams admin centre.
Q105) What is the initial step to ensure that every user keeps their current phone number after migrating from Skype for Business Server to Microsoft Teams Calling Plans?
A. Buy Communications Credits for each user from the Microsoft 365 admin centre.
B. Arrange for the porting of all users’ phone numbers.
C. Order phone numbers for each user through the Microsoft Teams admin portal.
D. Switch every user over to Teams.
Answer: B) Arrange for the porting of all users’ phone numbers.
Explanation: The initial step to ensure that every user keeps their current phone number after migration is to arrange for the porting of all users’ phone numbers.
Q106) In a Direct Routing scenario with Microsoft Teams Phone, what additional licence should be granted to users with an Office 365 E3 licence from France?
A. Microsoft 365 Auto Conferencing
B. Microsoft 365 Phone System – Virtual User
C. Microsoft 365 Domestic Calling Plan
D. Microsoft 365 Domestic and International Calling Plan
E. Microsoft 365 Phone System
Answer: E) Microsoft 365 Phone System
Explanation: In a Direct Routing scenario, users with an Office 365 E3 licence from France should be granted the Microsoft 365 Phone System licence.
Q107) In Microsoft Teams Voice Engineer (MS-720), what are the two things you should do to enable a new hire in Lisbon to send meeting invitations with a dial-in conferencing bridge using a local Lisbon number?
A. Change the employee’s audio conferencing preferences under Users in the Microsoft Teams admin area.
B. Change the default conferencing bridge’s settings from the Microsoft Teams admin centre.
C. Assign the employee an Auto Conferencing add-on licence through the Microsoft 365 admin centre.
D. Change the user’s use location to Portugal in the Microsoft 365 admin centre.
Answer:
B) Change the default conferencing bridge’s settings from the Microsoft Teams admin centre.
C. Assign the employee an Auto Conferencing add-on licence through the Microsoft 365 admin centre.
Explanation: To achieve the objective, you should change the default conferencing bridge’s settings and assign the employee an Auto Conferencing add-on licence.
Q8) In Microsoft Teams Voice Engineer (MS-720), what are the two things you should do to set up roaming bandwidth regulations for a Direct Routing deployment in Brazil, India, China, the United States, and the United Kingdom?
A. Include the public IP addresses for the Teams client on the list of Trusted IPs.
B. Establish a network website.
C. Assign a usage location from the Microsoft 365 admin centre.
D. Determine the Session Border Controller’s preferred nation or region for media traffic (SBC).
E. Use Location Objects for Presence Information Data Format to implement dynamic emergency dialling (PIDF-LO).
Answer:
A) Include the public IP addresses for the Teams client on the list of Trusted IPs.
B) Establish a network website.
Explanation: To set up roaming bandwidth regulations, you should include the public IP addresses for the Teams client on the list of Trusted IPs and establish a network website.
Q109) In Microsoft Teams, you create a network zone called Region1 with a 1.5 Mb connection to a site. What should you do to ensure a positive voice experience for everyone visiting the site?
A. Establish and distribute a Teams Network Roaming Policy that disables IP video.
B. Assign a meeting policy with a media bit rate of 1,500 Kbps to the users of Region 1.
C. Launch the network connectivity test tool for Microsoft 365.
D. Assign the DSCP value 46 to all traffic.
Answer: A) Establish and distribute a Teams Network Roaming Policy that disables IP video.
Explanation: To ensure a positive voice experience, you should establish and distribute a Teams Network Roaming Policy that disables IP video for everyone visiting the site in Region1.
Q110) In a location with a Survivable Branch Appliance (SBA) and Microsoft Teams Phone, what should you do to ensure users can make and receive PSTN calls during an internet outage?
A. Include the user in the call queue.
B. Change the rules for online voice routing.
C. Execute the cmdlet Grant-CsTeamsSurvivableBranchAppliancePolicy.
D. Run the Grant-CsTenantDialPlan cmdlet.
Answer: A) Include the user in the call queue.
Explanation: To ensure users can make and receive PSTN calls during an internet outage, you should include the user in the call queue.
Q111) In a Microsoft Teams Phone setup, transitioning from a PBX with an E1/T1 Primary Rate interface to Direct Routing, what should be in place before the PBX?
A. a physical Session Border Controller (SBC)
B. an FXO SIP Analog Telephony Adapter (ATA)
C. a virtual Session Border Controller (SBC)
D. a Session Border Controller (SBC) in Azure
Answer: A) a physical Session Border Controller (SBC)
Explanation: Before transitioning from a PBX with an E1/T1 Primary Rate interface to Direct Routing, you should have a physical Session Border Controller (SBC) in place
Q112) In Microsoft Teams Voice Engineer (MS-720), when deploying a Survivable Branch Appliance (SBA) for PSTN connectivity, what kinds of endpoints does the SBA support?
A. call queues in Microsoft Teams
B. audio conferencing in Microsoft Teams
C. Microsoft Teams panels
D. Microsoft Teams Windows desktops
Answer: D) Microsoft Teams Windows desktops
Explanation: The Survivable Branch Appliance (SBA) supports Microsoft Teams Windows desktops as endpoints for PSTN connectivity.
Q113) In a Direct Routing-enabled Microsoft Teams Phone deployment with local media optimization, what should you do after establishing network regions, sites, and subnets along with external trusted IP addresses in the Microsoft Teams admin centre?
A. Define a voice route.
B. Create a trunk translation rule.
C. Assign Session Border Controllers (SBCs) to sites.
D. Modify the default emergency calling policy.
Answer: C) Assign Session Border Controllers (SBCs) to sites.
Explanation: After establishing network regions, sites, and subnets along with external trusted IP addresses, you should assign Session Border Controllers (SBCs) to sites in a Direct Routing-enabled deployment.
Q114) In a Microsoft Teams Phone setup using Direct Routing for PSTN connectivity, what three conditions must be met for the implementation?
A. a Session Border Controller (SBC) that uses a hostname in the onmicrosoft.com domain
B. a firewall rule that opens a TCP signaling port to Microsoft Teams
C. a public DNS entry that maps the FQDN of the Session Border Controller (SBC) to a public IP address
D. a firewall rule that opens a UDP signaling port to Microsoft Teams
E. a Teams-certified Session Border Controller (SBC)
Answer:
B) a firewall rule that opens a TCP signaling port to Microsoft Teams
C) a public DNS entry that maps the FQDN of the Session Border Controller (SBC) to a public IP address
E) a Teams-certified Session Border Controller (SBC)
Explanation: The implementation of Direct Routing for PSTN connectivity in Microsoft Teams Phone requires a firewall rule, a public DNS entry, and a Teams-certified Session Border Controller (SBC).
Q115) When deploying Microsoft Teams Phone with Direct Routing, which IP address ranges should the firewall permit for Microsoft 365 traffic to a Session Border Controller (SBC)?
A. 8.8.8.8/32 and 4.4.2.2/32
B. 52.112.0.0/14 and 52.120.0.0/14
C. 132.245.0.0/16 and 40.104.0.0/15
D. 10.10.0.0/24 and 10.11.0.0/24
Answer: B) 52.112.0.0/14 and 52.120.0.0/14
Explanation: The firewall should permit the IP address ranges 52.112.0.0/14 and 52.120.0.0/14 for Microsoft 365 traffic to a Session Border Controller (SBC) in a Direct Routing setup.
Q116) To direct calls to support agents with the least amount of administration, what solution can be used for a new call queue requiring shared voicemail and call queue history?
A. Use a shared voicemail box to divert calls for the call queue.
B. Choose Attendant routing as the call queue’s routing mechanism.
C. Set up a Microsoft 365 group to be used with the call queue.
Answer: B) Choose Attendant routing as the call queue’s routing mechanism.
Explanation: To achieve the objective with the least administration, choosing Attendant routing as the call queue’s routing mechanism is not the recommended solution. Instead, using a shared voicemail box or setting up a Microsoft 365 group can be more suitable.
Q117) To direct calls to support agents with the least amount of administration, what solution is not recommended for a new call queue requiring shared voicemail and call queue history?
A. Use a shared voicemail box to divert calls for the call queue.
B. Choose Attendant routing as the call queue’s routing mechanism.
C. Set up a Microsoft 365 group to be used with the call queue.
Answer: B) Choose Attendant routing as the call queue’s routing mechanism.
Explanation: Choosing Attendant routing as the call queue’s routing mechanism is not recommended for achieving the objective with the least amount of administration.
Q118) To direct calls to support agents with the least amount of administration, what solution can be used for a new call queue requiring shared voicemail and call queue history?
A. Use a shared voicemail box to divert calls for the call queue.
B. Choose Attendant routing as the call queue’s routing mechanism.
C. Set up a Microsoft 365 group to be used with the call queue.
Answer: A) Use a shared voicemail box to divert calls for the call queue.
Explanation: Using a shared voicemail box to divert calls for the call queue can be a suitable solution for achieving the objective with the least amount of administration.
Q119) In a Direct Routing-enabled Microsoft Teams Phone deployment with local media optimization, what should you do after establishing network regions, sites, and subnets along with external trusted IP addresses in the Microsoft Teams admin centre?
A. Define a voice route.
B. Create a trunk translation rule.
C. Assign Session Border Controllers (SBCs) to sites.
D. Modify the default emergency calling policy.
Answer: C) Assign Session Border Controllers (SBCs) to sites.
Explanation: After establishing network regions, sites, and subnets along with external trusted IP addresses, you should assign Session Border Controllers (SBCs) to sites in a Direct Routing-enabled deployment.
Q120) In a Microsoft Teams Phone setup, when deploying a Survivable Branch Appliance (SBA) for PSTN connectivity, what kinds of endpoints does the SBA support?
A. call queues in Microsoft Teams
B. audio conferencing in Microsoft Teams
C. Microsoft Teams panels
D. Microsoft Teams Windows desktops
Answer: D) Microsoft Teams Windows desktops
Explanation: The Survivable Branch Appliance (SBA) supports Microsoft Teams Windows desktops as endpoints for PSTN connectivity.
What is Microsoft Unified Communication (UC)?
Microsoft Unified Communication (UC) is a comprehensive set of communication and collaboration tools and services provided by Microsoft to enhance communication and productivity within organizations.
The goal of Microsoft UC is to integrate various communication methods into a unified platform, making it easier for users to connect, share information, and collaborate seamlessly. Key components and technologies associated with Microsoft Unified Communication include:
Microsoft Teams: Microsoft Teams is a collaboration platform that combines
chat, video conferencing, file storage, and application integration. It
serves as a hub for teamwork within Microsoft 365, providing a unified
experience for communication and collaboration.
Skype for Business (Currently inactive): While Microsoft is transitioning users from Skype for
Business to Microsoft Teams, Skype for Business is another component of
Microsoft UC. It offers instant messaging, audio and video calling, and
online meetings. On July 31, 2021, Microsoft retired Skype for Business Online.
Exchange Server: Microsoft Exchange Server is a messaging platform that
includes email, calendaring, and contacts. It plays a crucial role in
Unified Communication by providing a reliable and scalable infrastructure
for email communication.
SharePoint: SharePoint is a web-based collaboration platform that
integrates with Microsoft UC, allowing users to share and collaborate on
documents, workflows, and other content.
Active Directory: Active Directory is a directory service used to manage
and authenticate users within a network. It plays a key role in Microsoft UC
by providing a centralized repository for user information.
VoIP (Voice over Internet Protocol): VoIP technology is a fundamental
aspect of Microsoft UC, enabling voice communication over the internet
instead of traditional phone lines. Microsoft integrates VoIP capabilities
into its communication platforms, allowing users to make voice calls using
the internet.
PSTN Integration: Public Switched Telephone Network (PSTN) integration
allows Microsoft UC to connect with traditional telephone networks, enabling
users to make and receive calls to and from standard phone numbers.
Enterprise Voice: This feature, often associated with Skype for Business,
provides PBX-like functionality within the Microsoft UC environment,
allowing users to make and receive calls using the platform.
Direct Routing: In Microsoft Teams, Direct Routing allows organizations to
connect their telephony infrastructure to the Teams environment, enabling
external calling capabilities.
Unified Messaging: Unified Messaging integrates voicemail with email,
allowing users to access voicemail messages through their email inbox.
Security and Compliance: Microsoft places a strong emphasis on security and
compliance features within its UC offerings, ensuring that communication and
collaboration data are protected and meet regulatory requirements.
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