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

Questions 41

Which of the following best describes an Ethernet bridge?

Options:

A.

A passive device simply used to connect two or more cables. Does not generate or amplify any signals.

B.

A device that receives and retransmits a signal out its other ports, but does not do any Layer 2 analysis of the data.

C.

A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitted.

D.

A device that receives a signal and based on the Layer 3 destination address, makes a decision on which ports the signal should be retransmitted.

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Questions 42

When entering a command on the Nokia 7750 SR from the Command Line Interface (CLI), what would you use to list all the options for the command?

Options:

A.

?

B.

tab character

C.

space character

D.

info

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Questions 43

Given the following (Network address: 208.40.224.0, Network prefix: /28.) What is the address range, including the network and broadcast addresses, for the fourth sub-network?

Options:

A.

208.40.224.0 208.40.224.255

B.

208.40.4.0 208.40.4.255

C.

208.40.224.16 208.40.224.31

D.

208.40.224.48 208.40.224.63

E.

208.40.227.0 - 208.40.224.255

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Questions 44

What is the main purpose of IP fragmentation?

Options:

A.

To limit the number of the IP addresses in the network.

B.

To improve the efficiency of transmissions over the network.

C.

To reduce the number of resources required to send a large frame over the network.

D.

To allow IP datagrams to be carried over Layer 2 networks with varying MTU sizes.

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Questions 45

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

Options:

A.

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

B.

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

C.

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

D.

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

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Questions 46

Choose two true statements that characterize Link State Routing

Options:

A.

Routers send a copy of their routing table to their neighbors periodically.

B.

Routers flood link information throughout the entire area.

C.

Network converges quickly (within several seconds) after a topology change.

D.

Routers do not have precise knowledge of the entire network topology.

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Questions 47

With a subnet mask of 255.255.255.224, which of the IP addresses below are valid host addresses? (Choose all that apply)

Options:

A.

17.23.119.63

B.

87.99.12.159

C.

95.11.22.93

D.

192.11.25.87

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Questions 48

Which of the following is a private IP network address reserved by the IANA?

Options:

A.

172.30.0.0/16

B.

192.100.0.0/24

C.

172.0.0.0/16

D.

169.254.0.0/16

E.

11.0.0.0/8

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Questions 49

Which of the following is not supported on the Nokia 7450 ESS?

Options:

A.

Support for IPv6.

B.

Support for POS.

C.

Upgrade path to the Nokia 7750 SR.

D.

Support for IS-IS

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Questions 50

When a device in an IP network receives an echo request message that is destined for itself, it then:

Options:

A.

Estimates the round trip-time.

B.

Generates an echo reply.

C.

Calculates the data loss statistics.

D.

Verifies the data field of the message.

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