Nokia 4A0-C01 Exam Made Easy: Step-by-Step Preparation Guide

Conservative label retention

Liberal label retention

Downstream on demand

Downstream unsolicited

P routers run IPv4 only. PE routers run IPv4 only and exchange IPv6 routes using MP-BGP.

P routers run IPv4 only. PE routers run both IPv4 and IPv6 and exchange IPv6 routes using MP-BGP.

P routers run IPv6 only. PE routers run both IPv4 and IPv6 and exchange IPv4 routes using MP-BGP.

P routers run IPv6 only. PE routers run IPv6 only and exchange IPv4 routes using MP-BGP.

If Shared Explicit reservation style is used, 400Mbps is reserved.

If Shared Explicit reservation style is used, 700Mbps is reserved.

If Fixed Filter reservation style is used, 400Mbps is reserved.

If Fixed Filter reservation style is used, 300Mbps is reserved.

A data packet will receive a service label at the CE and a transport label at the ingress PE.

A data packet intended for a remote CE will have its service label swapped at each P router along the path towards the egress PE.

At the egress PE, the transport label will be popped and the data packet forwarded with the service label.

The service label is popped by the remote CE. The unlabeled packet is forwarded based on the longest match lookup algorithm in the VRF.

All of the above statements are false.

All of the above statements are true.

By default, a 7750 SR does not advertise all routes in the VRF to a CE router.

The default 7750 SR behavior describes all routes in a VRF that are advertised to other PE routers.

By default, a 7750 SR does not advertise all routes in the VRF to other PE routers.

By default, a 7750 SR advertises all routes in the VRF to a CE router.

MP-BGP sessions need to be configured in the service provider network to support a VPN-IPv6 address family.

PE routers must be configured to run MP-BGP and IPv6

PE-to-CE BGP sessions need to be configured to support IPv6.

The provider core must be configured to support IPv6

None of the above statements are false.

All of the above statements are false

2

3

4

5

6

10

The inner label will be exchanged with the MPLS outer label.

The inner label will be exchanged for a new label.

The outer label will be exchanged for a new label.

All labels will be exchanged for one new label.

All labels will be exchanged for an equal number of new labels.

The FCS is verified and the customer frame is transported intact over the service provider network.

The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.

The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.

The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

0x4

0x5

0x10

0xa

Type 10 opaque LSAs are supported by IS-IS.

Type 10 opaque LSAs are flooded to all areas of the routing domain.

Type 10 opaque LSAs are stored in an LSDB.

Type 10 opaque LSAs are used for traffic engineering support.

ATM to Frame Relay translation.

Frame Relay to Ethernet translation.

ATM tunneling over a Frame Relay core network.

Frame Relay tunneling over an ATM core network.

Frame Relay tunneling over an MPLS/IP core network

Admin groups

Hop-limit

Strict hops

TE-Metric

Frame mode requires multiple sessions between peers.

The lower transport address initiates the session.

Established LDP sessions run over a TCP connection.

An LDP session is established immediately after Init messages are exchanged between peers.

Enable traffic engineering on all routers along the LSP path.

Enable CSPF on the head-end router.

Configure a path definition on all routers along the LSP path.

Enable MPLS and RSVP on all routers along the LSP path.

Hello message

Init message

Keepalive message

Label Mapping message

ACK message

CAC is used when the LSP path has not been computed by CSPF.

CAC is used when the LSP path has been computed by CSPF.

CAC is used to perform a bandwidth check on each egress interface of the downstream router.

CAC is used to perform a bandwidth check based on the router's LSDB.

The MPLS TTL values are incremented at each request.

The router uses MPLS Echo Request packets that are IP-routed.

The router collects hop information along the tunnel's path.

The router performs an unidirectional LSP test.

It supports traffic protection using IGP equal cost paths.

It supports CAC to prevent resource overbooking.

It supports LSPs with traffic engineering constraints.

It supports LSPs that follow the IGP best path.

The Standby with the highest next-hop IP.

The first Standby in the list.

The Standby with the longest uptime.

The Standby with the lowest next-hop IP.