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Top-Class 4A0-114 Question Answers Study Guide
The Nokia 4A0-114 exam consists of 60 multiple-choice questions that cover various topics related to BGP, such as BGP routing, BGP attributes, BGP scaling, and BGP security. The exam is timed for 90 minutes, and candidates must score at least 80% to pass. The exam is available in multiple languages, including English, Japanese, and Chinese.
NEW QUESTION # 17
Which of the following regarding route reflectors is TRUE?
- A. There can only be one level of route reflectors in the topology.
- B. Only the route reflector is configured with a cluster id.
- C. There can only be one route reflector in a cluster.
- D. Clients should have iBGP sessions with each other to maintain the mesh.
Answer: B
NEW QUESTION # 18
Click the exhibit.
An update travels from AS 137000 to AS 135000, traversing both 32-bit and 16-bit AS Paths.
What AS Path is seen by AS 200?
- A. 140000 137000
- B. 137000 140000
- C. 200 140000 137000
- D. 23456 23456
Answer: D
NEW QUESTION # 19
Which of the following statements about IPv6 Link-Local addresses is FALSE?
- A. They have an interface ID derived by default from the interface's IPv4 address.
- B. They all have the same 64-bit subnet prefix.
- C. They are assigned to every physical interface running IPv6.
- D. They are only valid for communication within the same broadcast domain.
Answer: A
NEW QUESTION # 20
In the diagram below, a data packet is sent from CE1 to a far-end CE2 over a VPRN service across multiple regions. Which of the following statements about the tunnel labels is FALSE?
- A. The service label is a label pushed by router PE1.
- B. The second label is a BGP label pushed by router RBR1.
- C. The outer label is an RSVP, LDP, or segment routing label pushed by router Core1.
- D. The outer label will be popped by router Core2.
Answer: C
NEW QUESTION # 21
What kind of BGP path attribute is AS_PATH?
- A. Well-known mandatory
- B. Optional transitive
- C. Well-known discretionary
- D. Optional non-transitive
Answer: A
NEW QUESTION # 22
Click the exhibit.
Which of the following is a valid confederation configuration for Router R2?
- A. Option D
- B. Option B
- C. Option C
- D. Option A
Answer: C
NEW QUESTION # 23
Click the exhibit.
Assume all router-IDs are properly configured, and global IPv6 addresses are used to establish eBGP sessions.
Which of the following configurations is required on router A so that router B can exchange traffic with router D?
- A. Option D
- B. Option C
- C. Option B
- D. Option A
Answer: D
NEW QUESTION # 24
Which BGP message type is used to verify connectivity during and after BGP session establishment?
- A. Keep-Alive
- B. Hello
- C. Update
- D. Open
Answer: A
NEW QUESTION # 25
Which of the following is considered a best practice for BGP address planning?
- A. Exporting the networks associated with the external links of eBGP peers into BGP.
- B. Using system addresses for setting up iBGP sessions.
- C. Advertising external networks into IGP.
- D. Optimizing BGP route table by exporting IGP routes into BGP.
Answer: B
NEW QUESTION # 26
Which of the following pieces of information is NOT carried inside an EVPN IP-Prefix (type 5) route update associated with an EVPN VPLS?
- A. The IP prefix of a subnet in the layer-3 domain that the VPLS belongs to.
- B. The MAC address of an attached host.
- C. The VPLS's service tunnel ID (MPLS label or VNI value).
- D. The VPLS's route-distinguisher and route-target values.
Answer: A
NEW QUESTION # 27
The configuration of an Nokia 7750 SR is given below. Router Rl has established BGP sessions with routers R2 and R3. Which of the following is TRUE?
- A. Router R1forms iBGP sessions with routers R2 and R3.
- B. The types of BGP sessions with routers R2 and R3 cannot be determined.
- C. Router R1forms eBGP sessions with routers R2 and R3.
- D. Router R1forms an iBGP session with router R2, and an eBGP session with router R3.
Answer: B
NEW QUESTION # 28
Click the exhibit.
Routers RR1 and RR2 are route reflectors with the same Cluster-ID. How does router RA treat the updates for prefix 192.168.1.0/27 received from routers RR1 and RR2?
- A. Router RA prefers the update received from router RR2.
- B. Router RA prefers the update received from router RR1.
- C. Router RA accepts both updates and flags them as used.
- D. Router RA flags both updates as invalid.
Answer: D
NEW QUESTION # 29
Given the network shown, which of the following is the correct BGP configuration for RR1?
- A.
- B.
- C.
- D.
Answer: C
NEW QUESTION # 30
Which of the following statements about route reflector clusters is FALSE?
- A. When a route reflector reflects a route, it adds its cluster ID to the Cluster_list attribute.
- B. Within an AS, route reflectors belonging to different clusters do not need to be fully-meshed among themselves.
- C. Multiple clusters may be configured within an AS.
- D. A router can be the client of multiple route reflectors within its AS.
Answer: A
NEW QUESTION # 31
Which of the following attributes can be used to prevent route advertisement loops in a network using router reflectors?
- A. CLUSTER_LIST
- B. MED
- C. ORIGIN
- D. AS_PATH
Answer: A
NEW QUESTION # 32
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To prepare for the Nokia 4A0-114 exam, candidates can take advantage of Nokia's official training courses, including the Border Gateway Protocol Fundamentals for Services course. The course covers all the topics included in the exam and provides hands-on lab exercises to help candidates gain practical experience. Candidates can also use online resources such as practice exams and study guides to supplement their training.
Preparing for the Nokia 4A0-114 certification exam requires a solid understanding of BGP and its role in service provider networks. Candidates should have experience working with Nokia routers and switches and be familiar with the configuration and operation of BGP in a real-world environment. There are various study materials available, including practice exams, study guides, and online courses, to help candidates prepare for the exam. Passing the Nokia 4A0-114 certification exam demonstrates a high level of proficiency in BGP and can open up new career opportunities for network professionals.
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