Nokia Nokia Certifications 4A0-100 Questions & Answers

• Question 181:

  How does a VPRN service avoid the problem of overlapping IP addresses from different customers?

  A. You cannot have overlapping IP addresses. The service provider must ensure that its customers are all using discrete IP address space.

  B. Each VPRN service maintains a separate VPN routing and forwarding instance to separate customer routing information.

  C. A VPRN will ignore IP addressing information and use MAC addressing instead which are always unique.

  D. A VPRN will translate customer IP addresses to a private addressing scheme administered by the service provider.

  Correct Answer: B

• Question 182:

  Which statement best describes a VPRN service?

  A. From the customers perspective it looks as if all sites are connected by the same set of dark fibers.

  B. From the customers perspective it looks as if all sites are connected to a private switched network administered by the service provider.

  C. From the customers perspective it looks as if all sites are connected to a private routed network administered by the service provider.

  D. From the customers perspective it looks as if all sites have public internet access administered by the service provider.

  Correct Answer: C

• Question 183:

  Which statement best describes an SDP?

  A. Service Delivery Points are defined on the service provider network side and used to bind the service to an MPLS transport tunnel. Many services can be bound to a single SDP.

  B. Service Delivery Points are defined on the service provider access side and used to bind the connection of the service to CE device. Many services can be bound to a single SDP.

  C. Service Delivery Points are defined on the service provider network side and used to bind the service to an MPLS transport tunnel. Only one service can be bound to a single SDP.

  D. Service Delivery Points are defined on the service provider access side and used to bind the service to CE device. Only one service can be bound to a single SDP.

  Correct Answer: A

• Question 184:

  Multiple SAPs may be defined on the same physical port and may be used for different services.

  A. True

  B. False

  Correct Answer: A

• Question 185:

  SAPs may be a port, a port with a specific VLAN tag in the case of an Ethernet port, or a port with a specific Circuit ID in the case of ATM or Frame Relay.

  A. True

  B. False

  Correct Answer: A

• Question 186:

  Which statement best describes a SAP?

  A. The Service ATM Point is used for ATM connections to a PE.

  B. The Service Access Point is defined on the PE device and is the customers access to the service.

  C. The Service Access Point is defined on the P device and is the customers access to the service.

  D. The Service Access Point is defined on the CE device and is the customers access to the service.

  Correct Answer: B

• Question 187:

  Which of the following are NOT examples of a VPN service offered on the Nokia 7750 SR? Choose two.

  A. VPWS Virtual Private Wire Service

  B. VPLS Virtual Private LAN Service.

  C. VPRN Virtual Private Routed Networks.

  D. MLPPP Multi-link Point-to-Point protocol

  E. VPDFS Virtual Private Dark Fiber Service.

  Correct Answer: DE

• Question 188:

  Where would you expect to find a P router in a service provider's network?

  A. At the edge of the provider's network facing the customer.

  B. At the edge of the customer's network facing the provider.

  C. In the core of the provider's network.

  D. On the customer premises.

  Correct Answer: C

• Question 189:

  Which of the following are considered Virtual Private Networks? Choose all that apply.

  A. IES

  B. VPWS

  C. VPLS

  D. VPRN

  Correct Answer: BCD

• Question 190:

  Which of the following are accurate statements about the PE device in a service providers MPLS network? (Select three)

  A. A PE router only connects to CE devices.

  B. A PE router only connects to P routers.

  C. A PE router connects to at least one P router.

  D. A PE router connects to at least one CE device.

  E. PE routers support many different interface types connecting to CE devices.

  F. PE routers only support Ethernet interfaces connecting to the CE.

  Correct Answer: CDE