TAKE NOKIA 4A0-112 WEB-BASED PRACTICE TEST ON POPULAR BROWSERS

Take Nokia 4A0-112 Web-Based Practice Test on Popular Browsers

Take Nokia 4A0-112 Web-Based Practice Test on Popular Browsers

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Nokia 4A0-112 Exam is an essential certification for network engineers who want to advance their careers using Nokia's networking solutions. 4A0-112 exam validates your skills and knowledge in configuring and managing complex networks using the IS-IS routing protocol. Passing the exam demonstrates your expertise in the networking field and opens up new opportunities for career advancement.

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Nokia IS-IS Routing Protocol Sample Questions (Q31-Q36):

NEW QUESTION # 31
Which of the following statements about IS-IS is FALSE?

  • A. A router becomes level-2 when it is associated with the backbone area.
  • B. In IS-IS, routers are associated with an area, not the interfaces.
  • C. A level-1 router forwards traffic to other areas through the nearest I eve I-1/1 eve I-2 router.
  • D. IS-IS uses the concept of level-1 and level-2 routers to implement hierarchy.

Answer: B

Explanation:
In IS-IS, routers are actually associated with interfaces rather than the entire router being associated with a single area. A router can have interfaces in multiple areas, and it is the interface's configuration that determines which area it belongs to.


NEW QUESTION # 32
Consider the exhibit.

All routers are running IS-IS with IPv6 support enabled. Based on the topology shown, and the route tables of routers R3 and R4, which of the following statements is TRUE?

  • A. There is no route leaking configured on router R1 or router R2.
  • B. Route leaking is configured on router R1 but not on router R2.
  • C. Route leaking is configured on router R2 but not on router R1.
  • D. Route leaking is configured on both routers R1 and R2.

Answer: D

Explanation:
From the route tables of R3 and R4, we can see that remote routes are present, with R3 and R4 both having routes referencing routers in different areas (Area 49.01 and 49.02). These remote routes are characteristic of route leaking, which is the process of sharing routes between different IS-IS areas.
R3 has routes for R1, R2, and R4, which are in Area 49.01, suggesting that R1 and R2 have advertised their routes to R3, possibly due to route leaking.
R4 has similar routes for R2 and R3, indicating that R2 might have advertised its routes to R4.
This sharing of routes between areas is indicative of route leaking being configured on both R1 and R2, allowing these routes to be shared across the areas.


NEW QUESTION # 33
Two IS-IS routers are exchanging Hello packets. One is configured to use authentication and the other is not. Which of the following statements is TRUE?

  • A. An adjacency will be established with authentication using the default parameters defined for IS-IS routers.
  • B. An adjacency will be established without authentication.
  • C. An adjacency will not be established.
  • D. The two routers will negotiate the authentication parameters and the establish an adjacency.

Answer: C

Explanation:
IS-IS routers must have matching authentication settings to establish an adjacency. If one router is configured with authentication and the other is not, the routers will not be able to establish an adjacency because their authentication parameters do not match.


NEW QUESTION # 34
What is the replacement for ARP in IPv6?

  • A. Duplicate address detection procedures.
  • B. Stateless address auto-configuration procedures.
  • C. Router discovery procedures.
  • D. Neighbor discovery procedures.

Answer: D

Explanation:
In IPv6, the Neighbor Discovery Protocol (NDP) replaces the Address Resolution Protocol (ARP) used in IPv4. NDP is responsible for several functions, including resolving IP addresses to MAC addresses (similar to ARP), detecting duplicate IP addresses, and discovering other devices on the network.


NEW QUESTION # 35
Refer to the exhibit.

A static route has been configured on router R1 to reach the PC at 139.120.121.2.
What might be causing the ping to fail?

  • A. The configured next hop does not belong to a subnet adjacent to R1.
  • B. The configured static route needs to be a default route.
  • C. Router R2 needs a static route to the PC.
  • D. Router R1 needs a static route to router R2.

Answer: A

Explanation:
In the configuration on router R1, the static route is defined with the next-hop IP address of 139.120.121.1.
However, the next-hop IP address 139.120.121.1 does not belong to the same subnet as the directly connected interface on R1, which is 172.31.1.1/30. For the static route to work properly, the next-hop IP address must be reachable via a directly connected interface, meaning it must be within the same subnet.
Therefore, this mismatch in subnet adjacency is likely causing the failure to reach the destination (139.120.121.2).


NEW QUESTION # 36
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