50 Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate Practice Questions: Question Bank 2025

Your organization is deploying Microsoft Teams Phone. Users must be able to place and receive PSTN calls using Microsoft as the PSTN carrier, and you want to minimize on-premises telephony dependencies. Which PSTN connectivity option should you choose?

You need to ensure only a specific set of users can schedule Teams webinars. All other users should be blocked from creating webinars but can still create regular meetings. What should you configure?

You manage Teams Rooms devices. You want to remotely view device health (including sign-in status and peripheral status) and perform common actions like restart without signing into each device. Which solution should you use?

Users report choppy audio during Teams calls on a congested network. You want to prioritize real-time media traffic over other traffic types. What is the recommended approach?

Your company uses Direct Routing with an on-premises SBC. A subset of users can’t make outbound PSTN calls from Teams, but inbound PSTN calls to those users work. Other users are unaffected. Which is the most likely cause?

You are configuring an Auto attendant for a support line. Callers must be able to say 'billing' or 'technical support' to route to different call queues. Which feature should you configure in the Auto attendant?

You need to host a company-wide Town hall where attendees can only view and interact via moderated Q&A, and you want strict control over who can present. Which configuration best meets the requirement?

You manage a fleet of Teams Phones (IP phones). Devices intermittently fail to sign in after a password rotation policy was introduced. You want to reduce sign-in failures and improve device sign-in reliability without using shared user accounts. What should you implement?

After enabling QoS, Teams media traffic still isn’t prioritized across the WAN. You confirm DSCP markings are present on client packets leaving endpoints. What is the most likely reason QoS is not effective end-to-end?

You are migrating from Direct Routing to Operator Connect for several countries. A key requirement is to keep the same emergency calling behavior and ensure location information is provided for dynamic emergency calls in Teams. Which planning step is most critical before porting numbers?

You need to ensure users can dial emergency services and automatically send the caller’s location to the correct Public Safety Answering Point (PSAP). The users are in multiple offices and also work remotely. What should you configure to support dynamic location for Teams Phone?

A company wants to use Teams Phone with Direct Routing. They require that all PSTN calls traverse their Session Border Controller (SBC) and that only a subset of users can place international calls. Which configuration best meets the requirement?

You are configuring a Teams Auto Attendant. The business requires that callers hear a greeting, press 1 for Sales, press 2 for Support, and press 0 to reach an operator. Which feature should you use to implement this menu?

A Teams Rooms (Windows) device in a conference room shows 'Sign in' on the console and is no longer joining meetings. You need to restore service with the least administrative effort and without sharing passwords with on-site staff. What should you do?

You want to monitor call quality for a specific user who reports intermittent one-way audio. Which tool provides per-user, per-call details (including streams, jitter, packet loss) in the Teams admin center?

Your organization runs Teams webinars. The marketing team wants to allow external attendees to join without signing in, but they also want to ensure presenters are authenticated and can start the webinar. Which configuration best meets this requirement?

You are deploying QoS for Teams on Windows clients. You need to ensure audio is prioritized over video and screen sharing on the network. What should you configure on clients and network devices?

Users report that calls from Teams to the PSTN sometimes fail, and call logs show '403 Forbidden' returned by the SBC. Internal Teams-to-Teams calls work. Which is the most likely cause?

You need to ensure that only approved USB peripherals (camera/speakerphone) can be used with Teams Rooms on Android in shared spaces. What is the best approach?

You want to reduce disruptions in large meetings by preventing attendees from unmuting themselves during the presentation, while still allowing the organizer and presenters to speak. What should you use?

You need to prevent attendees from unmuting themselves during a large department briefing in Microsoft Teams. Which meeting option should you configure?

A user reports that calls to the PSTN from Teams fail, but internal Teams-to-Teams calls work. You confirm the user has a Teams Phone license. What is the most likely missing requirement?

You want to monitor the health of Teams Rooms on Windows devices and proactively detect sign-in or peripheral issues. Which portal is designed for this purpose?

A multinational organization uses Direct Routing. They need to ensure emergency calls route to the nearest public safety answering point (PSAP) based on the caller’s building and floor. What should you implement?

You are configuring a Teams webinar for external customers. The marketing team wants attendees to register, receive an approval decision, and only approved attendees can join. What should you configure?

Call quality reports show high packet loss for audio during peak hours at one site. You already validated internet bandwidth is sufficient. What is the best next action to improve real-time media quality for Teams?

A Teams phone user needs to delegate call handling to an assistant. Requirements: the assistant can answer calls for the executive and place calls on the executive’s behalf, and the executive can control whether the assistant is notified for calls. What should you configure?

You manage hundreds of Teams Android phones. You need to ensure users cannot sign out of the device and cannot access device settings, while still allowing them to place calls. What is the recommended approach?

Users at a branch office complain that Teams calls occasionally have one-way audio. Your SIP trunk is connected via Direct Routing. Which is the most likely network-related cause to investigate first?

You are deploying Direct Routing with a certified Session Border Controller (SBC). Security requires that only known SBC FQDNs can connect to the tenant and that users cannot bypass the SBC to route PSTN calls. What should you configure?

Your organization has a helpdesk that answers calls for multiple departments. Callers must hear an initial greeting, then choose 1 for Sales, 2 for Support, or 3 for Billing. Each option should route to a different team’s call queue. What should you configure?

You need to ensure that only authenticated users in your organization can join Microsoft Teams meetings by default, and anonymous join should be blocked unless explicitly allowed. Which setting should you configure?

You are deploying Teams Rooms on Windows devices. You want to manage configuration, health, and software updates from a centralized portal. What should you use?

Users report choppy audio in Teams calls during peak hours. You want to prioritize real-time media traffic over other network traffic on managed Windows clients. What is the recommended approach?

Your organization needs to provide a single main phone number that routes calls to multiple agents. Calls must be distributed to the next available agent, and calls should wait with music if all agents are busy. What should you configure?

You are planning a town hall event where attendees should not be able to unmute themselves or share video. Only presenters should be able to speak and share content. Which configuration best meets the requirement?

You manage Teams desk phones used by call center agents. You need to remotely restart a specific phone and collect device logs for troubleshooting without requiring the user to take action. Where should you perform these tasks?

After enabling QoS markings on Teams clients, you still see no DSCP values on the network. The Teams clients are domain-joined Windows devices. Which is the most likely missing configuration?

Your organization uses Direct Routing. A subset of users can place outbound PSTN calls but receives a fast busy when dialing any external number. In Teams admin center, the users have valid Phone System licenses and are enabled for Enterprise Voice. In PowerShell, the users show no assigned voice route. What should you do to fix the issue?

A remote site uses an internet breakout with strict firewall rules. Teams sign-in works, but calls connect with one-way audio and screen sharing frequently fails. You suspect that required UDP traffic is being blocked and media is falling back inconsistently. What is the best next step to validate and remediate the issue?

Your organization is rolling out Teams Phone. A group of users must be able to place PSTN calls immediately, but you want to avoid assigning phone numbers until the rollout is finalized. Which action is required to allow outbound PSTN calling?

You need to ensure that all Teams meetings created by users in the Finance department automatically record and store recordings in OneDrive/SharePoint when the meeting starts. What should you configure?

You manage Teams-certified phones. After a firmware update, several devices show as "Offline" in the Teams admin center, but users report they can still make calls. Where should you check first to confirm whether the devices are actually reachable from the Teams service?

A site uses Direct Routing with a Session Border Controller (SBC). Users intermittently experience one-way audio on PSTN calls. Microsoft Teams call quality dashboard shows packets arriving with normal jitter and loss on the Teams side. Which network area should you investigate first?

You are designing an operator-attendant experience for a reception team. Requirements: (1) Reception can answer calls to the main number, (2) distribute calls to multiple receptionists, and (3) allow receptionists to consult/transfer to internal users. Which Teams Phone feature set best meets these requirements?

Your organization is hosting a large Teams webinar. The producer reports that attendees can join, but many cannot submit Q&A questions. Some users can, others cannot. What is the most likely configuration to check?

You need to apply consistent configuration to a fleet of Teams phones: enforce a specific time zone, disable Bluetooth, and set a custom wallpaper. What is the recommended approach?

Your security team requires that anonymous users cannot start recording in meetings, but authenticated users in your tenant can record when permitted by the organizer. What should you configure?

A multi-site organization is implementing QoS for Teams. You want to ensure Teams media traffic is prioritized end-to-end across the LAN and WAN while minimizing mis-marking by other applications. Which approach is best practice?

You are migrating from Skype for Business to Teams Phone with Direct Routing. During coexistence, some users report that PSTN calls to their DID ring in Skype for Business instead of Teams. Teams is intended to be the only calling client for these users. What is the most likely cause?