4A0-C04 : BUNDLE PACK LEARNING TOOLS INCLUDED

4A0-C04 Nokia NRS II Composite Exam: OSPF version

Exam overview
The NRS II composite exam: OSPF version combines content from the four individual exams required for NRS II certification into a single, integrated exam. The four individual exams are:

Nokia OSPF Routing Protocol (4A0-113)
Nokia Border Gateway Protocol Fundamentals for Services (4A0-114)
Nokia Multiprotocol Label Switching (4A0-103)
Nokia Services Architecture (4A0-104)

Exam name: Nokia NRS II Composite Exam C04
Exam number: 4A0-C04
Mandatory prerequisites: none
Exam duration: 120 Minutes
Exam appointment duration: 140 minutes. This is the exam duration plus a 20-minute introductory survey.
Number of questions: 70
Language: English
Price: $ US
Multiple Choice & Scenario-based Questions
Duration: ~90 minutes

Suggested Prerequisites:
Basic IP routing knowledge
Familiarity with Nokia Service Router Operating System (SROS)
NRS I certification (recommended but not mandatory)

Attend the Nokia OSPF Routing Protocol course or purchase the course materials.
Attend the Nokia Border Gateway Protocol Fundamentals for Services course or purchase the course materials.
Attend the Nokia Multiprotocol Label Switching course or purchase the course materials.
Attend the Nokia Services Architecture course or purchase the course materials.

Credit toward certification:
Nokia Network Routing Specialist II (NRS II) Certification

Main Topics Covered:

Below are the core exam topics you should study for the 4A0-C04 exam:

1. BGP Fundamentals
BGP attributes and message types
BGP route selection process
iBGP vs eBGP
BGP neighbor states

2. BGP Configuration on Nokia Routers
Basic BGP peering configuration
Route advertisement and filtering
BGP peer groups

3. Route Filtering Techniques
Import and export policies
Prefix lists, route policies, and community-based filtering
Policy-based routing decisions

4. BGP Path Attributes
Well-known mandatory and discretionary attributes
Optional transitive and non-transitive attributes
MED, Local Preference, AS Path, Origin, Next Hop

5. Advanced BGP Features
Route reflectors and confederations
BGP communities and extended communities
BGP multipath support
Graceful restart and route dampening

6. Route Aggregation and Summarization
Manual aggregation
Attribute manipulation during summarization
Suppress-map and aggregate-map

7. BGP Troubleshooting
Analyzing BGP state issues
Logging and debugging tools in Nokia SROS
Route table and neighbor status verification

Sample Question and Answers

QUESTION 1
Click on the exhibit.
An LSP traverses the path R1-R2-R3. With one-to-one fast reroute enabled, which router becomes a
DMP for the detour tunnels?

A. Router R1
B. Router R2
C. Router R3
D. Router R4
E. Router R5

Answer: E

QUESTION 2
Which of the following is NOT a characteristic of MPLS?

A. It provides the ability to establish connection oriented paths over a connectionless IP network.
B. It provides a mechanism to engineer network traffic patterns independently of IP routing tables.
C. It will work over most physical layer protocols.
D. It can use GRE tunnels to transport data from many different protocols over an IP network.

Answer: D

QUESTION 3
Which of the following regarding per-platform label space is TRUE?

A. A separate label is used for each interface on which the FEC is advertised.
B. A single label is assigned to a FEC for all interfaces on the same router,
C. It is typically used when the device has ATM or Frame Relay interfaces.
D. It uses more label resources than a per-interface label space.

Answer: B

QUESTION 4
Which of the following is TRUE when the explicit null is implemented?

A. The penultimate router will forward packets to the eLER, based on the IP header.
B. The eLER will receive packets with a top label value of 0.
C. The eLER will receive packets with a top label value of 3.
D. The penultimate router will pop the top label from the packets.

Answer: B

QUESTION 5
If an Nokia 7750 SR is an iLER operating in pipe mode, which of the following regarding the TC field (EXP bits) is TRUE?

A. The TC field is set based on the value of the DSCP field inside the customer packet.
B. The TC field is set to a specific value via explicit administrative configuration.
C. The TC field is set to a system generated random number.
D. The TC field is set by the eLER.

Answer: B