Nokia Services Architecture Exam (4A0-104) - Nk Actual Exam Questions
Last updated on May 01, 2026
Which of the following represents a SAP on a physical port configured with Q-in-Q encapsulation?
sap 1/1/1
sap 1/1/1:5
sap 1/1/1:5:5
sap 1/1/1:10.100
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Click the exhibit. Which tool produced this output?
ping
Isp-ping
traceroute
Isp-trace
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By default, how does a VPLS handle a tagged frame received at the ingress of a null SAP on an Nokia 7750 SR?
The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.
The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.
The FCS is verified and removed from the frame. The VLAN tag is kept and transported over the network.
The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.
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Which of the following about dot1Q SAPs is FALSE?
The dot1Q default SAP (port: *) can be used to pass VLAN tags transparently through a network.
The dot1Q null SAP (port: 0) accepts all tagged frames and untagged frames.
The dot1Q default SAP (port: *) accepts all untagged frames and any frames with tag values that are not used as a service-delimiting value on another SAP.
A dot1q null SAP (port: 0) and a dot1q default SAP (port: *) cannot both be defined on the same port.
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By default, what does the Nokia 7750 SR do when a frame with an unknown destination address is received in a VPLS?
It drops the frame.
It floods the frame to all PEs participating in the service.
It sends a destination unreachable message back to the originating host.
It sends the frame to the closest neighbor.
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