Nokia IS-IS Routing Protocol

Here you have the best Nokia 4A0-112 practice exam questions

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These questions were last updated on May 21, 2026
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Question 1 of 60

What do the address resolution protocol (ARP) for IPv4 and the neighbor discovery procedures for IPv6 have in common?

Both detect duplicate MAC address assignments.

Both detect duplicate IP address assignments.

Both resolve a host device’s MAC address using its IP address.

Both resolve a host device’s IP address using its MAC address.

Question 2 of 60

Which of the following statements about the IP forwarding process on a router is TRUE?

It uses the routing table to find a match for the source IP address.

It uses the routing table to find a match for the destination IP address.

It uses the ARP table to find a match for the source MAC address.

It uses the ARP table to find a match for the destination MAC address.

Question 3 of 60

When multiple routing protocols offer a route for the same prefix, what part of the router is in charge of deciding which route to make active?

The routing information base (RIB)

The routing table manager (RTM)

The equal cost multipath configuration (ECMP)

The forwarding information base (FIB)

Question 4 of 60

All routers in the diagram are running an interior gateway protocol (IGP) and have been configured with an ECMP value of 4. Router R5 advertises the prefix 192.168.3.0/24 using the IGP. Assuming all links have the same cost, how many entries for prefix 192.168.3.0/24 will be in router R3’s routing table?

Question 5 of 60

Which component of the Nokia 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?

Control Processing Module (CMP)

Media Dependent Adapter (MDA)

Switch Fabric (SF)

Input/Output Module (IOM)

Question 6 of 60

Which of the following best describes the approach used when configuring high availability across multiple regions to ensure minimal downtime during failover events?

Deploy active-active clusters with cross-region replication and automated DNS failover to maintain service continuity

Use a single-region deployment with periodic manual snapshots for disaster recovery purposes

Configure load balancers in each region with independent database instances and no synchronization

Implement cold standby servers that require manual intervention to activate during outages

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