nokia 4a0-m01 practice test

Click on the exhibit.

Consider the topology and MLS1 configuration shown, and given the following conditions:
• MLS1 delivers the PRC traceable clock to the network
• Reference 1 receives Quality Level (QL) - ST3
• Reference 2 receives QL - DUS
• BITS sets QL-STU
Which quality level will MLS1 deliver to POC2-1 on its Synchronous Ethernet (SyncE) port 1/2/7?

• A. QL-EEC2
• B. QL-PRS
• C. QL-ST3
• D. QL-STU

Click on the exhibit.

Given the show command results shown:
With what IEEE 1588v2/Precision Time Protocol (PTP) v2 message did the slave node set the Unicast
message rates used by the master?

• A. Announce granted
• B. Announce request
• C. Sync granted
• D. Sync request

Which statement best describes adaptive timing techniques?

• A. Adaptive timing calculates the time of day from time stamped packets
• B. Adaptive timing calculates the time of day from the arriving packet rate
• C. Adaptive timing only supports frequency synchronization
• D. Adaptive timing only operates on point-to-point links

If an IEEE 1588v2/Precision Time Protocol (PTP) v2 slave times out announce messages with the
master, to which state does the slave port transition to choose another potential master?

• A. Initial
• B. Listening
• C. Passive
• D. Un-calibrated

Click on the exhibit.

Given the configuration shown and the following conditions:
* The external reference is offline
* Reference 1 receives Quality Level (QL) - EEC1
* Reference 2 receives QL - SSU-A
Which quality level will the SAR router advertise to its Synchronous Ethernet (SyncE) peers?

• A. QL-DNU
• B. QL-EEC1
• C. QL-SSU-A
• D. QL-PRC
• E. QL-UNC

Click on the exhibit.

Given the show command results shown:
Which IEEE 1588v2/Precision Time Protocol (PTP) v2 parent clock value does the slave first consider
when choosing its master?

• A. GM Clock Priority1
• B. GM Clock ID
• C. GM Clock Priority2
• D. GM Clock Class

An SROS router obtains its timing exclusively from its BITS input port. The router sets Quality Level
(QL) SONET Traceability Unknown (STU) on this Superframe (SF) framed DS1 BITS reference. What
must you configure on this master router to pass the best clock quality level to the downstream
Synchronous Ethernet (SyncE) slave nodes while maintaining traceability to the DS1 source?

• A. Enable "ql-override prs" on the BITS reference
• B. Enable "ql-override prs" on the master's SyncE ports
• C. Enable "ql-selection prs" on the BITS reference
• D. Set the master router to choose its source by quality level

Click on the exhibit.

Consider the topology and MLS1 configuration shown, and given the following conditions:
* MLS1 delivers the PRC traceable clock to the network
* Reference 1 receives Quality Level (QL) - EEC1
* Reference 2 receives QL - SSU-A
* BITS sets QL-SSU-B
Which quality level will MLS1 deliver to POC2-1 on its Synchronous Ethernet (SyncE) port 1/2/7?

• A. QL-EEC1
• B. QL-PRC
• C. QL-SSU-A
• D. QL-STU

Which synchronization technique supports time of day and phase synchronization?

• A. IEEE 1588 v2/Precision Time Protocol (PTP) v2
• B. Adaptive Clock Recovery (ACR)
• C. Time Division Multiplexing (TDM) line timing
• D. Synchronization Ethernet (SyncE)/Synchronization Status Message (SSM)

Which is a characteristic of the IEEE 802.3 Slow Protocol?

• A. There are a maximum of 10 frames transmitted per second
• B. There are a maximum of 20 slow protocol subtypes per interface
• C. The maximum slow protocol frame size is 64 bytes
• D. The slow protocol header carries the clock quality level