How to Easily Pass the Nokia 4A0-100 Exam: Expert Advice

Questions 11

Which of the following best describes the function of the service label?

Options:

Customer traffic is encapsulated with a service label by the ingress PE. The service label identifies which transport tunnel to use.

Customer traffic is encapsulated with a service label by the egress PE. The service label identifies which transport tunnel to use.

Customer traffic is encapsulated with a service label by the egress PE. The service label identifies the specific service the data belongs to.

Customer traffic is encapsulated with a service label by the ingress PE. The service label identifies the specific service the data belongs to.

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Questions 12

What is the basic unit of framing in SDH and the bit rate for transmission?

Options:

STM-1 with a bit rate of 1.544 Mbit/s.

STM-1 with a bit rate of 2.048 Mbit/s.

STM-1 with a bit rate of 51.84 Mbit/s.

STM-1 with a bit rate of 155.52 Mbit/s.

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Questions 13

Which transport protocol and port number is used by BGP to establish and maintain a peering session with other BGP speakers?

Options:

TCP port 179.

UDP port 179.

TCP port 22.

UDP port 22.

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Questions 14

What is the function of an LSR?

Options:

Label Switching Routers make switching decisions based on the original MAC Header.

Label Switching Routers make routing decisions based on the original IP Header.

Label Switching Routers make forwarding decisions based on the MPLS label.

Label Switching Routers make decisions based on ATM header information.

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Questions 15

What must the sender do when it receives a window size of 0 from the receiver?

Options:

Stop transmitting.

Terminate the TCP session.

Send the next segment.

Retransmit the previous segment.

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Questions 16

What happens in a TCP session if a segment is not acknowledged within a certain time period?

Options:

The missing segment is retransmitted.

The TCP session is terminated.

The sender sends the next segment.

An ICMP destination unreachable message is sent.

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Questions 17

Which statement best describes an SDP?

Options:

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.

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.

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.

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.

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Questions 18

Based on the network diagram (click on exhibit), Router 1 installs the network D in its routing table, based on a dynamic routing update from Router 2. Which of the following describes the information that will be installed in the routing table?

4A0-100 Question 18