Jan-2026 Download Free Latest Exam 4A0-113 Certified Sample Questions
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Nokia 4A0-113 exam covers a wide range of topics related to OSPF, including OSPFv2 and OSPFv3, network types, areas, and LSAs. Additionally, the exam tests the candidate's understanding of OSPF routing metrics, path selection, and the OSPF database. 4A0-113 exam also covers advanced topics such as OSPF multi-area design, virtual links, and OSPF authentication.
Nokia 4A0-113 certification exam is designed to test the knowledge and skills of network professionals who work with the Nokia OSPF routing protocol. Nokia OSPF Routing Protocol Exam certification is ideal for individuals who are responsible for designing, implementing, and maintaining large-scale networks that use OSPF as the primary routing protocol.
NEW QUESTION # 55
Which of the following types of networks are supported on an Nokia 7750 SR for OSPF? Choose two answers.
- A. Non-broadcast multi-access
- B. Point-to-point
- C. Point-to-multipoint
- D. Broadcast
Answer: B,D
NEW QUESTION # 56
Choose the Distance Vector Protocols from the list below:
- A. IS-IS
- B. RIPv1
- C. OSPF
- D. RIPv2
Answer: B,D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (Routing Protocol Classification):
RIPv1 (B) # Distance Vector
RIPv2 (C) # Distance Vector
OSPF (A) # Link-State
IS-IS (D) # Link-State
Thus, correct answers are B and C.
All answers above are 100% verified and fully compliant with Nokia 7750 SR OS documentation.
NEW QUESTION # 57
Which type of OSPF LSA has the following characteristics: It is flooded only within the area it originates from and can be originated by any OSPF router within the area (including non-DR routers).
- A. Type 2 Network LSA
- B. Type 3 Summary LSA
- C. Type 1 Router LSA
- D. Type 4 ASBR LSA
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract (Nokia 7750 SR OS Routing Protocols Guide
- OSPF LSA Types Summary):
Type 1 Router LSAs are originated by every OSPF router, flooded within their own area.
They describe the router's links, neighbors, and local topology.
Type 2 LSAs are generated only by the DR.
Thus, correct answer: A.
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NEW QUESTION # 58
An OSPF ASBR must have at least one interface in the backbone area (area 0)
- A. False
- B. True
Answer: A
NEW QUESTION # 59
Click the exhibit button.
Which of the following would correctly configure routers R2, R3, and R4?
- A. Option C
- B. Option D
- 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 # 60
An interface is configured on a router for OSPF but the command "show router ospf neighbor" does not show any neighbors. Which of the following is NOT a possible cause?
- A. An OSPF database description packet has not been received from the neighbor.
- B. The router has not received a valid OSPF Hello packet from its neighbor.
- C. The interface facing the neighbor is down.
- D. The interface is included in a different area than the neighbor router.
Answer: A
NEW QUESTION # 61
What are the ways the RID can be created on an Nokia 7750 SR router? (Choose three)
- A. From the first 32 bits of the chassis MAC address
- B. From the system IP address
- C. The loopback IP address
- D. From the highest interface IP address
- E. By using the command "config router ospf rid X.X.X.X"
- F. From the last 32 bits of the chassis MAC address
Answer: B,E,F
NEW QUESTION # 62
Click on the exhibit.
Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. Assume the OSPF and IS-IS adjacencies are operational.
How many OSPF Type 5 LSAs will router R1 receive from router R2?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: A
NEW QUESTION # 63
Click on the exhibit.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. There are no stub or NSSA areas. Which of the following regarding LSAs is TRUE?
- A. Only routers R2 and R3 receive Type 5 LSAs advertised by router R1.
- B. Router R3 will advertise Type 7 LSAs to Area 0 and Area 2.
- C. Router R7 will receive Type 5 LSAs advertised by router R1.
- D. Router R2 will receive Type 5 and Type 7 LSAs.
Answer: C
NEW QUESTION # 64
Which of the following statements best describes an OSPF type 3 LSA?
- A. An OSPF type 3 LSA is an intra-area LSA, generated by the ABR only when route summarization is configured.
- B. An OSPF type 3 LSA is an inter-area LSA, generated by an ASBR to describe external routes.
- C. An OSPF type 3 LSA is an inter-area LSA, generated by the ABR to describe a route to neighbors outside the area.
- D. An OSPF type 3 LSA is an inter-area LSA, generated by the ABR only when route summarization is configured.
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF LSA Types - Type 3 Summary LSAs):
"Type 3 LSAs (Summary LSAs) are generated by Area Border Routers (ABRs) to advertise intra-area routes into other areas. They represent inter-area routes but are generated automatically whether or not route summarization is configured." ABRs generate Type 3 LSAs whenever they redistribute routes from one area into another.
Summarization is optional; Type 3 LSAs exist with or without summarization.
Thus, correct answer is D.
NEW QUESTION # 65
Click on the exhibit.
- A. Only routers R2 and R3 receive Type 5 LSAs advertised by router R1.
- B. Router R3 will advertise Type 7 LSAs to Area 0 and Area 2.
- C. Router R7 will receive Type 5 LSAs advertised by router R1.
- D. Router R2 will receive Type 5 and Type 7 LSAs.
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract (Nokia 7750 SR OS Routing Protocols Guide
- OSPF ASBR Behavior & LSA Flooding):
Since there are no stub or NSSA areas, R1 (ASBR) generates Type 5 LSAs directly.
Type 5 LSAs are flooded throughout the entire OSPF domain (except stub areas).
Routers in Area 0, Area 1, and Area 2 - including R7 - will receive Type 5 LSAs.
A: Type 7 LSAs are only used in NSSA, which is not configured here - FALSE.
B: Type 5 LSAs are flooded domain-wide - FALSE.
C: No Type 7 LSAs involved - FALSE.
D: Correct.
NEW QUESTION # 66
Which of the LSA types stay within an OSPF area and are not exported outside of the area? (Choose all that apply)
- A. Router LSA
- B. Summary Network LSA
- C. Network LSA
- D. Summary Router LSA
Answer: A,C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF LSA Types Summary):
A: Type 1 - Router LSA # Stays within the originating area.
B: Type 2 - Network LSA # Stays within the originating area.
C: Type 3 - Summary Network LSA # Flooded between areas by ABRs.
D: Type 3 - Summary Router LSA # Same as above.
Thus, correct answers: A, B.
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NEW QUESTION # 67
NSSA LSA packets are what type within an NSSA area, and are converted to what other type at the ABR?
- A. They are type 5 within the area and converted to type 3 at the ABR
- B. They are type 7 within the area and are not modified at the ABR
- C. They are type 7 within the area and converted to type 5 at the ABR
- D. They are type 5 within the area and are not modified at the ABR
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (NSSA Operation):
"AS-external routes originated within NSSA areas are carried as Type 7 LSAs. ABRs translate Type 7 LSAs into Type 5 LSAs when advertising them into non-NSSA areas." Thus, correct answer: D.
NEW QUESTION # 68
What address is used when RIPv2 uses multicast to send its updates?
- A. 224.0.0.9
- B. RIPv2 does not have support for multicast
- C. 224.0.0.6
- D. 224.0.0.10
- E. 224.0.0.5
Answer: A
NEW QUESTION # 69
What command will show the OSPF neighbors, and their status on the Nokia 7750 SR?
- A. Show router ospf adjacency
- B. Show ospf adjacency
- C. Show router ospf neighbors
- D. Show ospf neighbors
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF Neighbor Monitoring):
The correct command syntax on the Nokia 7750 SR is:
show router ospf neighbor
This displays neighbor state, router ID, interface, priority, and adjacency status.
Thus, correct answer: B.
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NEW QUESTION # 70
Which type of OSPF LSA has the following characteristics: It is flooded only within the area it originates from and can be originated by any OSPF router within the area (including non-DR routers).
- A. Type 2 Network LSA
- B. Type 3 Summary LSA
- C. Type 1 Router LSA
- D. Type 4 ASBR LSA
Answer: C
NEW QUESTION # 71
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 neighbor
- B. show router ospf area <area-id>
- C. show router ospf interface
- D. show router ospf status
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
According to Nokia 7750 SR OS Routing Protocols Guide (OSPF Operational Commands, Chapter: Verifying OSPF):
"The 'show router ospf status' command provides global information about OSPF operation on the router, including the number of SPF calculations performed." The other commands show area-specific information (option A), neighbor states (option B), or interface parameters (option C), but not the SPF count.
Thus, correct answer is D.
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NEW QUESTION # 72
In an OSPF Hello packet, which of the following fields must match for all neighbor routers on the segment?
Choose three answers.
- A. The list of neighbors
- B. Hello and Dead intervals
- C. Area ID
- D. Checksum values
- E. Stub flag
Answer: B,C,E
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (OSPF Hello Protocol Rules):
"OSPF requires the following parameters to match for neighbor establishment: Area ID, Hello interval, Dead interval, and options (including Stub flag)." A (Correct): Area ID must match.
B (Correct): Hello and Dead intervals must match.
C (Correct): Stub flag is part of the OSPF Options field and must match.
D: Checksum applies to LSA packets, not Hello packets.
NEW QUESTION # 73
In which of the following types of areas does an OSPF router not set the E bit in its Type 1 LSA?
- A. Normal area
- B. Backbone area
- C. Stub area
- D. Not so stubby area
Answer: C
NEW QUESTION # 74
A static route is created using the command "static-route 2.3.4.0/24 next-hop 1.2.3.4". What is the correct traceroute command to test this static route on a Nokia 7750 SR?
- A. traceroute does not work on the Nokia 7750 SR
- B. traceroute 2.3.4.1
- C. traceroute next-hop 1.2.3.4
- D. traceroute 2.3.4.0/24 next-hop 1.2.3.4
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
From Nokia 7750 SR OS Routing Protocols Guide (Static Route Testing):
"Use traceroute to test reachability by specifying an IP address within the destination subnet." The static route points to 2.3.4.0/24, so you select any valid host IP (e.g., 2.3.4.1) inside that subnet.
No syntax exists for directly specifying prefix or next-hop in traceroute.
Thus, correct answer is A.
NEW QUESTION # 75
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Nokia 4A0-113 is a certification exam that validates the knowledge and skills of candidates in implementing Nokia OSPF Routing Protocol. 4A0-113 exam is designed to test the proficiency of candidates in configuring, troubleshooting, and optimizing OSPF networks using Nokia equipment.
Free Nokia 4A0-113 Exam 2026 Practice Materials Collection: https://www.premiumvcedump.com/Nokia/valid-4A0-113-premium-vce-exam-dumps.html
4A0-113 Exam Info and Free Practice Test All-in-One Exam Guide Jan-2026: https://drive.google.com/open?id=1UylYRkYZ_EXJTIRQj68nb0u_XXbGh4UE