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4A0-100 Exam Dumps - Nokia SRC Certification Questions and Answers

Question # 24

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

Options:

A.

The missing segment is retransmitted.

B.

The TCP session is terminated.

C.

The sender sends the next segment.

D.

An ICMP destination unreachable message is sent.

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Question # 25

Which field in the IP routing table contains the name or address of the neighbour that advertised the prefix to the router?

Options:

A.

Preference.

B.

Metric.

C.

Dest prefix.

D.

Next hop.

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Question # 26

A CE device has a physical connection to which device in the service providers MPLS network?

Options:

A.

CE always connects to a PE router.

B.

CE always connects to a P router.

C.

CE always connects to another CE device.

D.

The CE does not connect to the service provider network.

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Question # 27

You are working from a particular Command Line Interface (CLI) context, and want to see the commands available from your current context. What command can you issue to view this information?

Options:

A.

view tree

B.

tree

C.

info detail

D.

info

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Question # 28

The physical networks connecting two PCs to the internet are DSL and PPP respectively. Which layer will enable the two PCs to communicate?

Options:

A.

Layer 1

B.

Layer 2

C.

Layer 3

D.

Layer 4

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Question # 29

What happens next after an incoming packet is de-encapsulated from the Layer 2 frame in an Nokia 7750 router?

Options:

A.

The IP datagram is encapsulated in the appropriate Layer 2 frame by the MDA.

B.

The IP datagram passes through the switch fabric to reach the egress IOM.

C.

The IP datagram is passed to the IOM.

D.

A lookup is performed in the FIB to determine the egress interface.

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Question # 30

A set of tasks that move a packet from its entry into an IP network to its exit from the IP network. This describes:

Options:

A.

IP routing.

B.

IP protocol.

C.

IP encapsulation.

D.

IP tunneling.

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Question # 31

Which statement best describes a VPRN service?

Options:

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.

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Question # 32

Which two protocols are used for the dynamic signaling of MPLS labels (Choose two.)?

Options:

A.

RSVP-TE

B.

CSPF

C.

PNNI

D.

LDP

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Question # 33

What is the purpose of the source and destination ports in the TCP header?

Options:

A.

These ports identify the physical location of the sender and the receiver on the IP router.

B.

These ports are used as addresses to communicate with the IP layer.

C.

TCP does not use source or destination ports.

D.

These ports are used as an address to identify the upper layer application using the TCP connection.

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Exam Code: 4A0-100
Exam Name: Nokia Scalable IP Networks
Last Update: Feb 22, 2025
Questions: 352
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