Posttest Sharing Session HLD and LLD FBB Core Area 4 Telkomsel

Which virtual router in the BNG section is responsible for handling internet traffic ?

• DIAMETER_VR

• INTERNET_VR

• MGMT_VR

• Global Routing

What is the primary role of the CGNAT in this design ?

• Managing VLANs

• Handling AAA authentication

• Translating private IPs to public IPs

• Providing DNS services

What is the purpose of the BNG (Global) in this BGP design ?

• To provide DNS resolution for subscribers

• To advertise subscriber pools to CGNAT for NAT translation

• To terminate eBGP sessions with PE-HSI

• To directly allocate public IP addresses to subscribers

What are the main phases of PPPoE session establishment ?

• Discovery, Authentication, Data Transfer

• Active Discovery, Link Establishment, Authentication, Address Assignment, Keep-Alives

• Handshaking, Routing, Forwarding

• Request, Response, Termination

During the PPPoE Discovery phase, which packet does the client send first ?

• PADO

• PADR

• PADI

• PADS

What command is used to check the active PPPoE sessions and their assigned IP addresses ?

• show subscribers client-type pppoe

• show dhcpv6 server binding

• show subscribers summary

• show network-access address-assignment pool

Which command provides information about the usage of a source NAT pool ?

• show security nat source summary

• show security nat resource-usage source-pool <pool-name>

• show security flow session summary

• show security flow session source-nat-pool summary

How is the SDN connection from STO carried to the Metro ?

• Using a dedicated physical interface

• Through a Layer 3 VPN (L3VPN)

• Using a subinterface via Metro

• Via a direct connection to Telkomsel Global

Which protocol is used for communication between PE-HSI and BNG for Internet traffic ?

• IS-IS

• OSPF

• eBGP

• Static

What is the primary function of the BGP peering to RTBH Kominfo servers ?

• To distribute prefix advertisements via BGP.

• To provide DNS resolution for Telkomsel.

• To act as a blackhole route for security filtering.

• To authenticate users before accessing the internet.