A large enterprise has three data centers that must be interconnected so that any server in any data center can communicate with any other server. The enterprise also runs multiple applications, each in its own VLAN, and wants to keep these VLANs isolated across the WAN. The service provider uses 802.1ad (QinQ) to multiplex multiple customers on its network. Which service type and encapsulation should the provider offer?

E-Line with a separate point-to-point EVC between each pair of data centers, using QinQ to stack the customer's C-TAG on the provider's S-TAG

E-LAN with QinQ, where the enterprise's VLAN is the C-TAG and the provider's service instance is the S-TAG

E-Tree with one data center as the root and the other two as leaves, using QinQ for VLAN isolation

E-Access with VLAN translation to map each enterprise VLAN to a unique provider VLAN

Which Ethernet OAM protocol is primarily used for fault management and connectivity verification in a service provider network?

IEEE 802.3ah (Ethernet Link OAM)

IEEE 802.1ag (Connectivity Fault Management)

IEEE 802.1ad (Provider Bridging)

ITU Y.1731 (Performance Monitoring)

A large service provider is designing a backbone network to interconnect hundreds of customer sites. The provider is concerned about the scalability of its current QinQ (802.1ad) deployment because the backbone switches must learn the MAC addresses of all customer devices. The provider wants to improve scalability and isolate customer MAC addresses from the backbone. Which technology should the provider implement?

IEEE 802.3ah Link OAM to offload MAC learning to the customer edge

ITU G.8032 Ethernet Ring Protection to reduce MAC learning in the backbone

IEEE 802.1ah (MAC-in-MAC) with backbone MAC (B-MAC) encapsulation

IEEE 802.1ag CFM to reduce the number of MAC addresses in the backbone

CiscoCertified Network Professional Service Provider

Domain 4Objective 2

4.2 Configure L2VPN and Carrier Ethernet 350-501 Practice Questions (Page 3)

Part of the Services domain, which accounts for 20% of the 350-501 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 2–3 from this objective — we provide 39 practice questions to prepare you well beyond it. (estimate)

39questions here

8free pages

14concepts

20%of the exam

Questions 11–15

11foundation · easy
Which VLAN tag manipulation operation is used to replace an existing VLAN tag with a different one?
Select an answer first
12foundation · easy
A service provider needs to offer a service where a central site can send traffic to many remote sites, but the remote sites must not be able to communicate directly with each other. Which Carrier Ethernet service type should be used?
Select an answer first
13application · medium
A large enterprise has three data centers that must be interconnected so that any server in any data center can communicate with any other server. The enterprise also runs multiple applications, each in its own VLAN, and wants to keep these VLANs isolated across the WAN. The service provider uses 802.1ad (QinQ) to multiplex multiple customers on its network. Which service type and encapsulation should the provider offer?
Select an answer first
14foundation · easy
Which Ethernet OAM protocol is primarily used for fault management and connectivity verification in a service provider network?
Select an answer first
15application · medium
A large service provider is designing a backbone network to interconnect hundreds of customer sites. The provider is concerned about the scalability of its current QinQ (802.1ad) deployment because the backbone switches must learn the MAC addresses of all customer devices. The provider wants to improve scalability and isolate customer MAC addresses from the backbone. Which technology should the provider implement?
Select an answer first

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4.2 Configure L2VPN and Carrier Ethernet 350-501 Practice Questions (Page 3)

Questions 11–15

Which VLAN tag manipulation operation is used to replace an existing VLAN tag with a different one?

A service provider needs to offer a service where a central site can send traffic to many remote sites, but the remote sites must not be able to communicate directly with each other. Which Carrier Ethernet service type should be used?

Which Ethernet OAM protocol is primarily used for fault management and connectivity verification in a service provider network?

Keep studying — Services