Vendor: Nokia
Exam Code: 4A0-C04
Exam Name: Nokia NRS II Composite Exam: OSPF version
Certification: Nokia Certifications
Total Questions: 298 Q&A
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Updated on: Jun 15, 2026
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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?
A. The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.
B. The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.
C. The FCS is verified and removed from the frame. The VLAN tag is kept and transported over the network.
D. The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.
Which of the following about VPLS MAC learning is TRUE?
A. Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.
B. A PE keeps a single FDB for all VPLSes it has.
C. Frames received on a SAP that are broadcast, multicast or unknown are flooded.
D. The FDB only stores the MAC addresses of remote sites.
Which of the following about route distinguishes on the Nokia 7750 SR is TRUE?
A. Route distinguishes are appended to IPv4 prefixes to form IPv6 prefixes.
B. CE routers use a route distinguisher to indicate which VPRN they are associated to.
C. A route distinguisher combined with an IPv4 prefix produces a VPN-IPv4 prefix.
D. Route distinguishes are used to determine which routes a VPRN should import.
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