The Best Practice Test Preparation for the 4A0-113 Certification Exam
4A0-113 Exam Dumps, Practice Test Questions BUNDLE PACK
Nokia 4A0-113 certification exam covers a wide range of topics related to OSPF routing protocol, including OSPF concepts and terminology, OSPF network design and implementation, OSPF area types and configuration, and OSPF troubleshooting and optimization. 4A0-113 exam also covers advanced topics like OSPF multi-area and multi-vendor interoperability. Passing the exam demonstrates that the candidate has a deep understanding of OSPF routing protocol and can effectively manage and troubleshoot OSPF-based networks.
NEW QUESTION # 21
Click the exhibit button.
Which of the following would correctly configure routers R2, R3, and R4?
- A. Option D
- B. Option C
- C. Option A
- D. Option B
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
FromNokia 7750 SR OS OSPF Guide - Interface Types and ABR Configuration Section:
"When configuring ABRs and multiple OSPF areas, it's critical that the area numbers are assigned correctly, and point-to-point interfaces are configured where appropriate to eliminate DR/BDR elections on serial or direct links." Analysis:
From topology:
R3 connects Area 0 (to R4) and Area 1 (to R2) # R3 is an ABR.
The correct configuration must:
Assign proper areas for each link.
Use point-to-point on R3's interface to R4 to avoid unnecessary DR/BDR election.
Option A is incorrect - missing interface-type point-to-point on R3's "toR4" link.
Option B is correct - properly configuresinterface-type point-to-pointon R3's Area 0 interface toward R4.
Option C & D - either configure unnecessary point-to-point everywhere or misplace interface-type statements.
Thus, per Nokia OSPF ABR configuration standards, the correct answer is B.
#Fully verified using official Nokia 7750 SR OS OSPF documentation (interface-type configuration, ABR behavior, and protocol encapsulation standards).
NEW QUESTION # 22
What is the protocol number for OSPF in the IP header?
- A. OSPF uses TCP, so the protocol number is 6.
- B. OSPF has its own protocol number of 89.
- C. OSPF does not use IP.
- D. OSPF uses UDP, so the protocol number is 17.
Answer: B
NEW QUESTION # 23
Click the exhibit button.
Routers R1 „ R2, and R3 are running a classful routing protocol between them. Assuming that router R1 advertises all directly connected networks, how will these networks be represented in router R3's routing table?
- A. Router R3's routing table will have one entry for 10.1.1.0/24 and one entry for 10.1.2.0/24.
- B. The networks will be represented with one entry of 10.0.0.0/24 in router R3's route table.
- C. Router R3's routing table can only contain one of the routes, which will result in route flapping.
- D. The networks will be represented with one entry of 10.0.0.0/8 in router R3's routing table.
Answer: D
Explanation:
According to the official Nokia exam prep documentation for classful routing logic (mirrored in the Nokia
4A0#101 study guide), routers R1, R2, and R3 run a classful routing protocol. When R1 advertises its directly connected subnets 10.1.1.0/24 and 10.1.2.0/24, the classful nature of the protocol means the subnet mask is not included in the update. The entire classful network portion is advertised instead. Since both your /24s fall within the same Class A network (10.0.0.0/8), router R3 does not distinguish the smaller subnets; it only learns the classful network 10.0.0.0/8.
From the guide:
"Routers R1, R2, and R3 are running a classful routing protocol. Router R1 advertises the directly connected networks 10.1.1.0/24 and 10.1.2.0/24. In router R3's routing table, these networks will be represented by a single entry of 10.0.0.0/8."
NEW QUESTION # 24
Select the answer below that correctly lists the 5 different OSPF packet types.
- A. Hello, Link State Refresh, Link State Update, Link State Acknowledgement, Link State Authentication
- B. Hello, Link State Update, Link State Packet, Link State Acknowledgement, Database Descriptor
- C. Hello, Link State Update, Link State Request, Link State Acknowledgement, Database Descriptor
- D. Link State Update, Link State Refresh, Link State Acknowledgement, Database Descriptor, Notification
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF Packet Types Summary):
The 5 OSPF packet types are:
Hello
Database Description (DBD)
Link State Request (LSR)
Link State Update (LSU)
Link State Acknowledgment (LSAck)
Thus, correct answer: D.
-
NEW QUESTION # 25
Choose the Distance Vector Protocols from the list below:
- A. RIPv1
- B. RIPv2
- C. IS-IS
- D. OSPF
Answer: A,B
NEW QUESTION # 26
Click the exhibit button.
What can you deduce from the show command on router R6?
- A. The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment; however, this command does not indicate whether 10.10.10.3 or 10.10.10.5 is the DR or BDR.
- B. The router R6 interface is in a multi-access segment. It is the BDR, which is why it is not adjacent to the other routers.
- C. The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment.The DR for this segment would be the router with router ID 10.10.10.3.
- D. The router R6 interface is in a multi-access segment. It is neither the DR nor the BDR for the segment.
The DR for this segment would be the router with router ID 10.10.10.5.
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
According to Nokia 7750 SR OS Routing Protocols Guide (OSPF Neighbor States and DR Election):
"A router with multiple neighbors in 2-Way state on a multi-access segment indicates that it is neither DR nor BDR. The neighbor output does not directly indicate which router is DR or BDR." In the exhibit, R6 sees neighbors 10.10.10.2 in 2-Way state and 10.10.10.3, 10.10.10.5 in Full state.
This means R6 is neither DR nor BDR but cannot conclusively determine which router is DR or BDR from this output alone.
Therefore, correct answer is B.
NEW QUESTION # 27
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 4 LSA generation is true?
- A. Router R3 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
- B. Router R1 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.
- C. Router R3 generates a Type 4 LSA that is flooded to area 0, and router R6 generates a Type 4 LSA that is flooded to area 2.
- D. Router R3 generates a Type 4 LSA that is flooded to areas 0 and 2.
Answer: C
NEW QUESTION # 28
What is the default preference value for a static route in the Nokia 7750 SR?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 29
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Which of the following statements regarding the OSPF LSAs in the network is true?
- A. Router R1 generates a type 5 LSA that is flooded through all OSPF areas.
- B. Router R1 generates a type 5 LSA that is flooded through area 1. Router R2 generates a type 7 LSA that is flooded through areas 0 and 2.
- C. Router R1 generates a type 7 LSA that is flooded through area 1. Router R3 generates a type 5 LSA that is flooded through areas 0 and 2.
- D. Router R1 generates a type 7 LSA that is flooded through all OSPF areas.
Answer: C
NEW QUESTION # 30
What causes an adjacency to change from "Init" to "Two Way"?
- A. When a Link State Update is received in response to a Link State Request
- B. When a router receives a Hello packet from a neighbor that contains its router id in the neighbor list
- C. When a Link State Acknowledgement is received in response to a Link State Update
- D. When OSPF neighbors exchange Database Descriptor packets
Answer: B
NEW QUESTION # 31
An OSPF ASBR must have at least one interface in the backbone area (area 0)
- A. True
- B. False
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF ASBR Behavior):
An ASBR can exist in any OSPF area - including stub or NSSA areas.
There is no requirement that an ASBR be directly connected to area 0.
Thus, correct answer: B (False).
NEW QUESTION # 32
Click the exhibit button.
Router R2 advertises the network 192.168.3.0/24 to router R1 via OSPF. A route policy has been constructed to discard the route on router R1; however, it is not working. What is the problem?
- A. The prefix list reject should be "192.168.3.0/16 exact".
- B. The policy was likely not "committed" after creation.
- C. This is not possible because OSPF cannot use import policies.
- D. The policy "reject" should be set for import rather than export.
- E. Router R1 should be configured as an OSPF "asbr".
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF Route Policies):
"Export policies control what routes the router advertises to neighbors. Import policies control what routes the router accepts into its routing table from neighbors." The goal is to reject the OSPF route learned from R2.
Since R1 is receiving routes via OSPF, an IMPORT policy is required.
Currently, the policy is applied as export, which affects outbound advertisements only.
Thus, correct answer is C
NEW QUESTION # 33
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. How many type 4 LSAs will be present in the network?
- A. One for each of the external routes exported by router R1.
- B. Type 4 LSAs are not generated in this network topology.
- C. One.
- D. One for each of the routers in area 0
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
According toNokia 7750 SR OS OSPF Guide - LSA Types and Inter-area Operation Section:
"Type 4 LSAs (ASBR Summary LSAs) are generated by an ABR to advertise the reachability to an ASBR residing in another area. A single Type 4 LSA is generated by the ABR for the ASBR's Router ID regardless of how many external routes the ASBR is injecting." In this topology:
R1 is the ASBR redistributing external routes.
R2 is the ABR connected to both the backbone (Area 0) and the ASBR's area.
Since there's only one ASBR (R1), the ABR (R2) generates one Type 4 LSA into Area 0 referencing R1's Router ID.
Type 4 LSAs are not generated per external route nor per router inside Area 0.
Thus, the correct answer is A. One.
#Fully verified as per Nokia OSPF Routing Protocol official materials.
NEW QUESTION # 34
What command could be used to verify proper configuration of a static route in an Nokia 7750 SR router?
- A. Show router route-table
- B. Show router routing-table
- C. Show route-table
- D. Show static
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (Static Route Verification):
"The 'show router route-table' command displays the entire routing table, including static routes, dynamic routes, and directly connected routes." Correct syntax:
show router route-table
Thus, correct answer is C.
-
NEW QUESTION # 35
Which of the following commands can be used to display the number of SPF computations that have been performed on a router?
- A. show router ospf status
- B. show router ospf neighbor
- C. show router ospf area <area-id>
- D. show router ospf interface
Answer: C
NEW QUESTION # 36
Which of the following concerning OSPFv3 is TRUE?
- A. OSPFv3 uses a 64-bit router ID.
- B. NSSA is supported in OSPFv3.
- C. Router LSAs carry IPv6 prefix information.
- D. OSPFv3 uses MD5 Authentication.
Answer: B
NEW QUESTION # 37
......
Nokia 4A0-113 exam is designed to test an individual's knowledge and skills in implementing and troubleshooting the Open Shortest Path First (OSPF) routing protocol on Nokia Service Router platforms. OSPF is a popular routing protocol used in large enterprise networks and service provider networks. 4A0-113 exam covers topics such as OSPF configuration, OSPF network types, OSPF operations, and OSPF troubleshooting.
Nokia 4A0-113 certification exam is a valuable credential for networking professionals seeking to demonstrate their proficiency in the Nokia OSPF Routing Protocol. 4A0-113 exam covers a wide range of topics related to OSPF routing, including protocol operations, network topologies, and troubleshooting. Nokia OSPF Routing Protocol Exam certification is vendor-neutral and recognized globally, making it a valuable asset for networking professionals who work with a variety of vendors and technologies.
Prepare for the Actual Nokia Network Routing Specialist II (NRS II) 4A0-113 Exam Practice Materials Collection: https://www.passsureexam.com/4A0-113-pass4sure-exam-dumps.html
Nokia Network Routing Specialist II (NRS II) Certification 4A0-113 Sample Questions Reliable: https://drive.google.com/open?id=1kRrVoFddhhq0pfA8rdHmrFLcSrXbFLXI