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100+ Free Nokia BGP Fundamentals for Services Practice Questions

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2026 Statistics

Key Facts: Nokia BGP Fundamentals for Services Exam

30

Exam Questions

Nokia 4A0-114 exam profile

75 min

Exam Duration

Nokia 4A0-114 exam profile

70%

Passing Score

Nokia SRC scoring policy

$125

Exam Fee (USD)

Pearson VUE Nokia pricing

Pearson VUE

Test Provider

Nokia SRC delivery partner

3 years

Credential Validity

Nokia SRC recertification policy

The Nokia BGP Fundamentals for Services exam (4A0-114) is a 30-question, 75-minute multiple-choice test delivered through Pearson VUE for $125 USD with a 70% passing score. Candidates are tested on BGP fundamentals (RFC 4271) including peering and UPDATE processing, Multiprotocol BGP (RFC 4760) with AFI/SAFI encoding for VPN-IPv4 and VPN-IPv6, and BGP route reflectors (RFC 4456) with cluster design and loop prevention on Nokia 7750 SR OS. The credential counts toward both Nokia NRS II and SRA certification tracks and is valid for three years.

Sample Nokia BGP Fundamentals for Services Practice Questions

Try these sample questions to test your Nokia BGP Fundamentals for Services exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the well-known TCP port number used by BGP for session establishment?
A.TCP port 179
B.TCP port 180
C.TCP port 161
D.TCP port 520
Explanation: BGP uses TCP port 179 for establishing sessions between peers. This well-known port is defined in RFC 4271 and allows BGP to leverage TCP's reliable transport mechanism.
2Which BGP message type is sent immediately after the TCP session is established to begin the BGP handshake?
A.KEEPALIVE message
B.UPDATE message
C.OPEN message
D.NOTIFICATION message
Explanation: After the TCP connection is established, each BGP peer sends an OPEN message containing its BGP version, AS number, hold time, and BGP identifier. This initiates the BGP finite state machine handshake.
3In the BGP finite state machine, which state immediately follows the CONNECT state when a TCP connection attempt succeeds?
A.OPENSENT
B.ACTIVE
C.OPENCONFIRM
D.ESTABLISHED
Explanation: When the TCP connection attempt initiated in the CONNECT state succeeds, the BGP FSM transitions to OPENSENT state. In this state, the local router sends its OPEN message and waits for the peer's OPEN message.
4What is the correct order of BGP FSM states from initial to established?
A.IDLE, CONNECT, ACTIVE, OPENSENT, OPENCONFIRM, ESTABLISHED
B.IDLE, ACTIVE, CONNECT, OPENSENT, OPENCONFIRM, ESTABLISHED
C.IDLE, CONNECT, OPENSENT, ACTIVE, OPENCONFIRM, ESTABLISHED
D.IDLE, ACTIVE, OPENSENT, CONNECT, OPENCONFIRM, ESTABLISHED
Explanation: The BGP finite state machine progresses through six states in order: IDLE, CONNECT, ACTIVE, OPENSENT, OPENCONFIRM, and finally ESTABLISHED. Each state has specific events and conditions that trigger transitions.
5Which BGP path attribute is a well-known mandatory attribute that indicates how the route was injected into BGP?
A.AS_PATH
B.ORIGIN
C.NEXT_HOP
D.LOCAL_PREF
Explanation: The ORIGIN attribute is a well-known mandatory attribute that indicates how a route was originally injected into BGP. It has three possible values: IGP (0), EGP (1), and INCOMPLETE (2).
6Which ORIGIN attribute value has the highest preference in BGP route selection?
A.INCOMPLETE (2)
B.EGP (1)
C.IGP (0)
D.All ORIGIN values have equal preference
Explanation: In BGP route selection, the ORIGIN attribute with the lowest value is preferred. IGP (0) is preferred over EGP (1), which is preferred over INCOMPLETE (2). IGP origin indicates the route was injected via a network statement.
7What is the primary difference between eBGP and iBGP?
A.eBGP uses UDP while iBGP uses TCP
B.eBGP peers are in different AS numbers while iBGP peers share the same AS number
C.eBGP requires MD5 authentication while iBGP does not
D.eBGP advertises only IPv4 routes while iBGP supports all address families
Explanation: The fundamental distinction between eBGP and iBGP is the AS relationship. External BGP (eBGP) runs between routers in different autonomous systems, while internal BGP (iBGP) runs between routers within the same autonomous system.
8What happens to the NEXT_HOP attribute when a route is advertised via eBGP?
A.The NEXT_HOP is set to the receiving router's IP address
B.The NEXT_HOP is set to the advertising router's IP address
C.The NEXT_HOP is unchanged from the received value
D.The NEXT_HOP is set to the BGP router ID
Explanation: When a route is advertised over an eBGP session, the NEXT_HOP attribute is set to the IP address of the advertising router's interface used for the eBGP session. This allows the receiving router to know the next hop toward the destination in the neighboring AS.
9By default, what is the TTL value set to for eBGP packets?
A.1
B.2
C.255
D.64
Explanation: By default, eBGP sets the IP TTL to 1 for outbound packets. This is a security mechanism to ensure that eBGP peers are directly connected. The TTL can be modified using eBGP multihop for non-directly-connected peers.
10Which BGP message type is used to gracefully close a BGP session?
A.UPDATE with withdrawn routes
B.KEEPALIVE with error code
C.NOTIFICATION with Cease error code
D.OPEN with shutdown flag
Explanation: A NOTIFICATION message with a Cease error code (error code 6) is used to gracefully tear down a BGP session. The NOTIFICATION message informs the peer of the reason for the session closure before the TCP connection is terminated.

About the Nokia BGP Fundamentals for Services Exam

The Nokia 4A0-114 BGP Fundamentals for Services exam is a Service Routing Certification (SRC) credential that validates intermediate-level knowledge of BGP fundamentals, Multiprotocol BGP (MP-BGP) address families for VPN services, and BGP route reflection. It focuses on the BGP concepts needed for deploying Nokia service-provider VPN services (VPLS, VPRN) and is part of both the NRS II and SRA certification tracks.

Assessment

30 multiple-choice questions covering BGP overview and peering, Multiprotocol BGP (MP-BGP), and BGP route reflectors on Nokia SR OS

Time Limit

75 minutes

Passing Score

70%

Exam Fee

$125 (Nokia / Pearson VUE)

Nokia BGP Fundamentals for Services Exam Content Outline

35%

BGP Overview, Peering, and Route Updates

BGP fundamentals (RFC 4271) including the BGP finite state machine (Idle, Connect, Active, OpenSent, OpenConfirm, Established), message types (OPEN with capabilities, UPDATE with NLRI and path attributes, NOTIFICATION, KEEPALIVE), EBGP vs IBGP peering (TTL, next-hop processing, policy differences), BGP session establishment troubleshooting, UPDATE message processing and route selection, NLRI encoding, key path attributes (ORIGIN, AS_PATH, NEXT_HOP, LOCAL_PREF, MED, COMMUNITY), and BGP import/export policy configuration on Nokia SR OS.

35%

Multiprotocol BGP

MP-BGP architecture (RFC 4760) extending BGP to carry multiple address families; AFI (Address Family Identifier) and SAFI (Subsequent Address Family Identifier) encoding; MP_REACH_NLRI and MP_UNREACH_NLRI path attributes for advertising and withdrawing routes; VPN-IPv4 address family (AFI 1, SAFI 128) for Layer-3 VPNs; VPN-IPv6 (AFI 2, SAFI 128); labeled unicast (AFI 1, SAFI 4) for inter-AS VPN Option C; BGP capabilities advertisement for MP-BGP; and MP-BGP configuration under configure router bgp on Nokia 7750 SR OS.

30%

BGP Route Reflectors

BGP route reflection (RFC 4456) eliminating full-mesh IBGP requirements; route reflector cluster design (client and non-client peers); originator-id attribute (first RR sets the originator); cluster-list attribute (prepended at each reflection hop for loop prevention); reflection rules (routes from clients reflected to all non-clients and other clients, routes from non-clients reflected to clients only); hierarchical route reflection (multi-tier RR topology); route reflector redundancy and partitioned clusters; and route reflector configuration and operational best practices on Nokia SR OS.

How to Pass the Nokia BGP Fundamentals for Services Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: 30 multiple-choice questions covering BGP overview and peering, Multiprotocol BGP (MP-BGP), and BGP route reflectors on Nokia SR OS
  • Time limit: 75 minutes
  • Exam fee: $125

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Nokia BGP Fundamentals for Services Study Tips from Top Performers

1Know the MP_REACH_NLRI attribute structure: AFI (2 bytes) + SAFI (1 byte) + next-hop length + next-hop + NLRI - this encoding is heavily tested.
2Master the AFI/SAFI combinations: VPN-IPv4 = AFI 1/SAFI 128, VPN-IPv6 = AFI 2/SAFI 128, labeled unicast = AFI 1/SAFI 4, and understand when each is used.
3Drill route reflector reflection rules: from client reflect to all non-clients + other clients; from non-client (regular IBGP) reflect to clients only; from EBGP reflect to all clients and non-clients.
4Understand originator-id and cluster-list loop prevention: if a route reflector sees its own cluster-id in the cluster-list, it discards the route.
5Practice BGP session establishment troubleshooting - know which BGP FSM states indicate configuration issues vs transport issues.
6Be fluent in Nokia SR OS BGP configuration: configure router bgp group <name> neighbor <ip> with family vpn-ipv4 and route-reflector-client options.

Frequently Asked Questions

What is on the Nokia 4A0-114 BGP Fundamentals for Services exam?

The Nokia 4A0-114 exam tests BGP fundamentals (RFC 4271) including peering and UPDATE processing, Multiprotocol BGP (RFC 4760) with AFI/SAFI encoding for VPN-IPv4, VPN-IPv6, and labeled unicast address families, and BGP route reflectors (RFC 4456) with cluster design, originator-id, cluster-list, and reflection rules on Nokia 7750 SR OS. It counts toward both Nokia NRS II and SRA certification tracks.

How long is the Nokia BGP Services exam and how many questions does it have?

The 4A0-114 exam contains 30 multiple-choice questions with a 75-minute time limit. The shorter format compared to other Nokia SRC exams (2.5 minutes per question) allows slightly more time per question.

What is the passing score for Nokia 4A0-114?

Nokia requires a 70% score (21 of 30 correct) to pass the BGP Fundamentals for Services exam. Aim for 85% or higher in practice exams - MP-BGP AFI/SAFI combinations and route reflector reflection rules are common stumbling blocks.

How much does the Nokia 4A0-114 exam cost?

The 4A0-114 exam fee is $125 USD per attempt, paid to Pearson VUE at registration. Optional Nokia self-paced or instructor-led training is sold separately and is not required to sit the exam.

Is 4A0-114 required for both NRS II and SRA?

Yes, the 4A0-114 BGP Fundamentals for Services exam counts toward both the Nokia NRS II and SRA certification tracks. For NRS II, it is one of the four required exams (alongside an IGP exam, MPLS 4A0-103, and Services Architecture 4A0-104). For SRA, it provides the BGP services foundation.

Where do I take the Nokia BGP Services exam?

The 4A0-114 exam is delivered by Pearson VUE either at a Pearson VUE test center or via OnVUE online proctoring, where available. Schedule through pearsonvue.com/us/en/nokia.html with your Nokia candidate profile.