2022 Valid 4A0-C04 Exam Updates - 2022 Study Guide [Q54-Q72]

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2022 Valid 4A0-C04 Exam Updates – 2022 Study Guide

4A0-C04 Certification – The Ultimate Guide [Updated 2022]

NO.54 Click the exhibit button.

The OSPF packets shown have been exchanged between two neighbors. What state is the OSPF adjacency in?

The adjacency state is two way because both routers have received a database description packet.

The adjacency is in the exchange state. The next step is to exchange link state request and link state update packets.

The adjacency is in the ex start state. The routers have exchanged database description packets, but still have to negotiate the starting sequence number.

The adjacency state is full. The routers are exchanging database description packets to notify each other that all link state advertisements have been received.

NO.55 Which of the following statements regarding OSPF routing updates on a point-to-point link is true?

On a point-to-point link, there is no need for a DR and BDR election; all routing updates are sent to
224.0.0.5.

On a point-to-point link, a DR and BDR are elected. The DR sends link-state advertisements describing the network.

On a point-to-point link, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.

On a point-to-point link, there is no need for a DR and BDR election. All routing updates are sent to the unicast address of the neighbor’s interface.

NO.56 Click the exhibit button.

Router R2 advertises the network 192.168.3.0/24 to router R1 via OSPF. A route policy has been constructed to discard the route on router R1; however, it is not working. What is the problem?

The prefix list reject should be “192.168.3.0/16 exact”.

Router R1 should be configured as an OSPF “asbr”.

The policy “reject” should be set for import rather than export.

The policy was likely not “committed” after creation.

This is not possible because OSPF cannot use import policies.

NO.57 Click on the exhibit. After the Isp-ping command is executed, which of the following best describe the router’s action?

MPLS Echo Request packets are sent within the RSVP-TE tunnel that is signaled for “lsp-toR2”.

MPLS Echo Request packets are sent within the LDP tunnel that is signaled for Mlsp-toR2″.

MPLS Echo Request packets are IP-routed to the destination address of “lsp-toR2”.

MPLS Echo Request packets are sent to the destination address of “lsp-toR2” over TCP.

NO.58 Which of the following about VPN labels is FALSE?

They are signaled between PE devices using MP-BGP.

They are swapped at each P router as a packet crosses the service provider network.

They are also known as the inner label or service label.

They indicate to the egress PE the VPRN to which a packet belongs.

NO.59 Which of the following regarding route reflectors is TRUE?

Only the route reflector is configured with a cluster id.

There can only be one route reflector in a cluster.

Clients should have iBGP sessions with each other to maintain the mesh.

There can only be one level of route reflectors in the topology.

NO.60 Which of the following describes 6PE?

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.

NO.61 Which of the following LSA types stay within an OSPF area, and are not flooded outside of the area? Choose two answers.

Router LSA

Network LSA
C Summary network LSA

Summary router LSA

Type 5 (AS external) LSAs

NO.62 What address is used when RIPv2 uses multicast to send its updates?

224.0.0.5

224.0.0.6

224.0.0.9

224.0.0.10

RIPv2 does not have support for multicast

NO.63 Which of the following statements regarding BGP Fast Reroute is FALSE?

BGP Fast Reroute is triggered by IGP events.

The backup path is pre-computed and installed in the FIB.

BGP Fast Reroute is independent of number of affected prefixes.

BGP Fast Reroute uses the optimal path to the destination.

NO.64 How does a DMP inform the downstream routers that it has merged detour tunnels?

The DMP sends the DMP_Object in each detour’s PATH messages.

The DMP summarizes PATH messages, giving each detour its own MSGJD.

The DMP identifies itself as the previous hop in each detour’s PATH message.

The DMP sends a single PATH message containing the merged DETOUR_Objects.

NO.65 From the list below select the statements that describe the behavior of link state information aging. (Choose 2)

The age for newly created link state information is set to 0 for OSPF and 1200 for IS-IS

The age for newly created link state information is set to 1200 for OSPF and 0 for IS-IS

The age is incremented or decremented as it is flooded from router to router and as it is held in the topological database.

The age is incremented or decremented only as it is held in the topological database and not as it is flooded router to router.

NO.66 Click the exhibit.

The output is from PE router R4 about VPRN service 100. How many prefixes have been learned from the MP-BGP protocol?

NO.67 There is an IP host with IP address 10.2.3.1. A static route is created, using the “configure router static-route
10.2.3.0/24 next-hop 10.1.2.1″ command. What is the correct traceroute command to test this static route on an Nokia 7750 SR?

traceroute 10.2.3.1

traceroute 10.2.3.1 next-hop 10.1.2.1

traceroute next-hop 10.1.2.1

traceroute does not work on the Nokia 7750 SR.

traceroute 10.1.2.1

NO.68 Click the exhibit.

Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what is the most likely relationship between ISP 1 and the other ISPs?