ASTA-7220 Aura Core Components Technical Associate Support Practice Questions
Prepare for ASTA-7220 with more than an answer.
- Level
- Technical Associate
- Valid for
- No expiration
Domains covered on the exam 6
- Avaya Aura Core Solution Architecture15%
- Avaya Aura System Manager Administration20%
- Avaya Aura Session Manager Support25%
- Avaya Aura Communication Manager Support25%
- Avaya Aura Media Server and Device Services10%
- System Maintenance and Support Resources5%
- 1
You are configuring a 'Regular Expression' in a Session Manager Dial Pattern to match any 10-digit number starting with 9. Which of the following regex strings is correct?
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Correct answer: A
'^' anchors to the start, '9' matches the literal digit 9, '\d{9}' matches exactly 9 more digits (totaling 10), and '$' anchors to the end. This ensures exactly 10 digits starting with 9 are matched.
- 2
When reviewing the status of an Avaya Aura Media Server (AAMS) in System Manager, you notice the 'Heartbeat' status is 'Failed'. However, you can ping the AAMS IP address from the SMGR command line. Which of the following is the most likely cause?
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Correct answer: A
System Manager monitors AAMS via REST API calls (heartbeats). If the network (ping) is fine, but the application heartbeat fails, it is usually authentication-related (mismatched passwords/keys) or the AAMS service itself is stopped, but authentication mismatch is a very common configuration error.
- 3
Which TWO of the following are valid roles for the Avaya Aura Media Server (AAMS) in a Core solution? (Select TWO)
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Correct answer: A, B
AAMS is used to store and play announcements and Music on Hold (MoH) for SIP calls.
AAMS acts as a mixing engine for ad-hoc audio conferences initiated by Communication Manager or other applications.
- 4
True or False: In Avaya Aura Communication Manager, a 'Signaling Group' must be configured before you can create a 'Trunk Group' that uses it.
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Correct answer: A
This is True. The Trunk Group form requires you to specify a Signaling Group number. Therefore, the Signaling Group (which defines the SIP/H.323 signaling path and near/far end IPs) must exist first.
- 5
You are investigating a '503 Service Unavailable' response in a traceSM. The response contains a header 'Reason: SIP; cause=503; text="No resources available"'. This error is coming from the Communication Manager. Which CM resource is most likely exhausted?
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Correct answer: A
If Communication Manager rejects a call with 'No resources available', it typically means all members (channels) in the targeted Trunk Group are busy, or the system limit for SIP sessions has been reached. DSP exhaustion usually results in media failures rather than immediate 503 signaling rejection during setup.
- 6
A support engineer is troubleshooting a reported issue where users in the 'Sales' location are unable to make outbound calls to the PSTN. The engineer uses the
traceSMutility on the Session Manager. The trace shows a '404 Not Found' response coming from the Session Manager itself immediately after the INVITE. What is the most likely cause of this error?Show answer details
Correct answer: B
In Avaya Session Manager, if an INVITE receives a '404 Not Found' generated locally by the SM (not relayed from a downstream entity), it typically indicates that the Routing Engine could not find a matching Dial Pattern for the specific location or domain of the caller. If the trunk were down, SM would attempt to route and likely return a 408 Request Timeout or 503 Service Unavailable.
- 7
An administrator is configuring a new SIP Entity in System Manager for a third-party PBX. The connection requires TLS on port 5061. After configuration, the Entity Link status remains 'Down'. A packet capture shows the TCP connection is established, but the TLS handshake fails immediately. Which of the following is the most critical setting to verify in the Entity Link configuration?
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Correct answer: A
For a TLS connection to be established, the Session Manager must trust the certificate presented by the remote entity. This requires the Root CA certificate of the third-party PBX to be imported into the System Manager's Trust Management Service and replicated to the Session Manager. Without this, the handshake will fail with a 'Certificate Unknown' or similar error.
sequenceDiagram participant SM as Session Manager participant PBX as 3rd Party PBX SM->>PBX: Client Hello PBX->>SM: Server Hello, Certificate Note over SM: Checks Trust Store SM--xPBX: Alert: Unknown CA (Handshake Fail) - 8
In an Avaya Aura Core architecture, which component is primarily responsible for the centralization of SIP routing decisions, normalizing dial plans across the enterprise, and providing a central point for SIP user registration?
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Correct answer: C
Avaya Aura Session Manager (SM) is the core SIP routing engine. It centralizes the dial plan, handles SIP user registrations, and normalizes signaling between different vendors and systems using Adaptations. Communication Manager handles features and call control, while System Manager is the management interface.
- 9
A technician is troubleshooting a scenario where internal calls between two SIP endpoints registered to the same Session Manager are completing successfully, but there is no audio in either direction. A trace reveals that the SDP (Session Description Protocol) offers comprise private IP addresses that are not reachable between the two endpoints' subnets. Which Communication Manager feature is likely NOT involved in this direct media scenario?
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Correct answer: B
If the call is set up with Direct Media (Shuffling), the media stream (RTP) goes directly between the two endpoints (peer-to-peer). Communication Manager or Media Gateway DSP resources are NOT involved in the media path after the initial setup. If the endpoints cannot route to each other's IPs, silence occurs. Disabling direct media (hairpinning) would force audio through a Media Gateway/Server, potentially fixing the routing issue by using the gateway as a proxy.
- 10
You are preparing to restart the Avaya Aura System Manager (SMGR) for maintenance. Which of the following statements is TRUE regarding the impact on the rest of the Avaya Aura Core environment during the reboot?
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Correct answer: B
This statement is generally False in terms of service impact. While System Manager is down, you cannot make administrative changes, and services relying on real-time queries to SMGR (like WebLM licensing if co-resident) might buffer or enter a grace period, but active call processing on Session Manager and Communication Manager continues uninterrupted. They function autonomously for call routing.
