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Nokia Interior Routing Protocols Exam (4A0-101) - Nk Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
315 Total Questions
1
Question
Click on the exhibit.

Exhibit

The numbers beside the links are the metrics for that link. Given the diagram, what path will traffic follow from router R2 to router R8, and from router R8 to router R2, if IS-IS is the routing protocol?
Options
A Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8-R7-R5-R3-R2)
B Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8) Router R8 to R2 will follow (R8-R7-R5-R3- R2)
C Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8). Router R8 to R2 will follow (R8-R7-R6-R4- R3-R2)
D Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8-R7-R6-R4-R3- R2)
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2
Question
Exhibit

Click on the exhibit. Router R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown. How many routes will router R4 have in its IPv6 route table?
Options
A 6
B 7
C 1
D 4
E 3
F 2
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3
Question
Which of the following best describes a unicast IPv6 address?
Options
A Fixed total of 128 bits, where 64 bits are used for routing and 64 bits are used as an interface identifier.
B Variable total length, where at least 64 bits are used for routing and 64 bits are used as an interface identifier
C Variable total length, where at least 48 bits are used for the global prefix, 48 bits are used for the subnet and 64 bits are used as an interface identifier.
D Fixed total of 128 bits, where 32 bits are used for the global prefix, 32 bits are used for the subnet and 64 bits are used as an interface identifier.
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4
Question
Which of the following best describes how IS-IS routers exchange updates on an Ethernet interface?
Options
A IS-IS routers exchange updates by sending UDP packets to a multicast address.
B IS-IS routers exchange updates by sending packets to the subnet broadcast address.
C IS-IS routers exchange updates using IP multicast packets.
D IS-IS routers exchange updates using Ethernet multicast packets.
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5
Question
Two IS-IS routers are exchanging Hello packets with different authentication types. Which of the following is TRUE?
Options
A Different authentication types are not possible because IS-IS only supports password authentication.
B Only an L2 adjacency will form, as long as both routers are L2 capable.
C An adjacency will not be formed.
D The two routers negotiate the authentication type and then reach the up state.
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