Pass the Nokia Network Routing Specialist II (NRS II) 4A0-114 Questions and answers with ValidTests

IPv6 Link-Local addresses are specific types of addresses used within a single local network segment. Here are key points about IPv6 Link-Local addresses:

A. True: Every physical interface running IPv6 is assigned a Link-Local address automatically.

B. True: Link-Local addresses are only valid for communication within the same broadcast domain (i.e., the local link).

C. True: They all have the same 64-bit subnet prefix (FE80::/64).

The false statement is:

D. False: The interface ID for Link-Local addresses is not derived from the interface’s IPv4 address. Instead, it is typically generated from the interface’s MAC address or using a random number.

ReferencesNokia Border Gateway Protocol Fundamentals, Chapter on IPv6 Addressing.

BGP Peer Discovery: Unlike some other routing protocols (e.g., OSPF, EIGRP), BGP does not use Hello messages to discover peers dynamically. Instead, BGP peers (neighbors) must be manually configured.

TCP Session: For BGP to operate, it requires an underlying TCP connection (port 179) between the two routers.

OPEN Message: The initial BGP message sent after establishing the TCP connection is the OPEN message, which is used to negotiate session parameters and exchange capabilities.

Exterior Routing Protocol: BGP was designed primarily for inter-AS (Autonomous System) routing, making it suitable for internet backbone routing and other exterior routing scenarios.

References:

Nokia BGP Fundamentals Documentation, Chapter on BGP Peer Establishment

RFC 4271 (A Border Gateway Protocol 4), Section 4

When an export policy is applied to a router to advertise a prefix to its eBGP peers, the local AS number is added to the AS_PATH attribute of the route update.

LOCAL_PREFERENCE is not set in eBGP updates; it is used within an AS.

NEXT_HOP is typically set to the advertising router's interface IP address.

COMMUNITY attribute is not set by default unless explicitly configured.

References:

Nokia Border Gateway Protocol Fundamentals documentation, Section 4.3 on BGP route advertisement.