4A0-C04 Exam Info and Free Practice Test All-in-One Exam Guide Oct-2022 [Q123-Q147]

QUESTION 123
Assuming that “client1” and “client2” are directly-connected networks, what is the result of executing the following BGP policy?

“client2” routes will be tagged with communities “West” and “North”.

“client2” routes will be tagged with communities “West”, “North” and “South”.

“client2” routes will be tagged with community “West”.

“client2” routes will be tagged with community “South”.

QUESTION 124
Which of the following prefix-lists is the most specific match for prefix 172.31.2.1/24?

Prefix 172.16.0.0/12 longer.

Prefix 172.31.0.0/22 longer.

Prefix 172.31.0.0/23 longer.

Prefix 172.31.0.0/24 exact.

QUESTION 125
The configuration of an Nokia 7750 SR is given below. Router Rl has established BGP sessions with routers R2 and R3. Which of the following is TRUE?

Router R1forms an iBGP session with router R2, and an eBGP session with router R3.

Router R1forms iBGP sessions with routers R2 and R3.

Router R1forms eBGP sessions with routers R2 and R3.

The types of BGP sessions with routers R2 and R3 cannot be determined.

QUESTION 126
Click on the exhibit.

The route table on router R2 shows the system address of router R5 but it does not show any of the interfaces from the non-OSPF area.
What may be causing this?

‘asbr’ is missing from router R1’s configuration.

Router R1 needs to have an export policy added to it.

Router R5 does not have an export policy for these prefixes.

Router R1 needs to have an import policy added to it.

QUESTION 127
Click on the exhibit.

This policy is applied on a router as an LDP export policy and an LDP session has been established between this router and its neighboring router. In addition to the FECs learned from its neighbors, what additional FECs will appear in this router’s LIB?

All FECs that are in the 192.168.1.0/24 address space.

Local FECs that are in the 192.168.1.0/24 address space.

All FECs that are not in the 192.168.1.0/24 address space.

All FECs except the local FECs that are in the 192.168.1.0/24 address space.

QUESTION 128
Which of the following about VPLS MAC learning is TRUE?

Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.

A PE keeps a single FDB for all VPLSes it has.

Frames received on a SAP that are broadcast, multicast or unknown are flooded.

The FDB only stores the MAC addresses of remote sites.

QUESTION 129
What are some of the characteristics of Nokia’s implementation of non-stop routing? (Choose two)

No protocol extensions required

Only supported by OSPF and IS-IS

Transparent to routing neighbors

Uses Graceful Restart to inter-operate with other vendors

QUESTION 130
Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of 200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6.
Assuming that none of the routers in AS 65540 is configured with “advertise-external”, what is the expected output of “show router bgp routes on router R1?

Option A

Option B

Option C

Option D

QUESTION 131
Which of the following about VPRNs is TRUE?

Customers must use the same routing protocol as the service provider.

Customers belonging to the same VPRN service must use the same subnet.

Service providers only need to perform configurations on the PEs to add additional VPRNs.

For each VPRN, only one customer can be connected at each PE.

QUESTION 132
Click the exhibit button.

Routers R1 , R2, and R3 are running a classful routing protocol between them. Assuming that router R1 advertises all directly connected networks, how will these networks be represented in router R3’s routing table?

Router R3’s routing table can only contain one of the routes, which will result in route flapping.

Router R3’s routing table will have one entry for 10.1.1.0/24 and one entry for 10.1.2.0/24.

The networks will be represented with one entry of 10.0.0.0/8 in router R3’s routing table.

The networks will be represented with one entry of 10.0.0.0/24 in router R3’s route table.

QUESTION 133
What is the purpose of configuring a triggered-policy on an Nokia 7750 SR?

Policy changes are delayed until the peer router with the affected routes reboots.

Policy changes are delayed until route updates for affected BGP routes are received from peers.

Policy changes are delayed until BGP sessions are cleared or BGP is reset.

Policy changes are delayed until the router reboots.

QUESTION 134
Which of the following comparisons between E-pipes and VPLSes is FALSE?

They both function as a Layer 2 switch from the service provider’s perspective.

They both support SAP encapsulations of null, dot1Q and Q-in-Q.

They both use SAPs as the demarcation point between the customer and the provider.

MAC addresses are learned by VPLSes, but not by E-pipes.

QUESTION 135
What labels are encapsulated in the tunnels used by a 6PE deployment?

The inner label is the IPv4 Explicit Null. The outer label is the MPLS transport label,

The inner label is an MPLS transport label. The outer label is the IPv4 Explicit Null.

The inner label is the IPv6 Explicit Null. The outer label is an MPLS transport label.

The inner label is an MPLS transport label. The outer label is the IPv6 Explicit Null.

QUESTION 136
An Nokia 7750 SR has the BGP configuration shown below. Assuming the router has established BGP sessions to routers R1 and R2, which of the following is TRUE?

Both neighbors R1and R2 should be part of AS 65540.

Neighbor R1should be part of AS 65550, while neighbor R2 should be part of AS 65540.

Neighbor R1should be part of AS 65550, while neighbor R2 should be part of AS 65560.

Both neighbors R1and R2 should be part of AS 65560.

QUESTION 137
An Nokia 7750 SR receives a route via an IS-IS LSP with internal reach ability, and receives the same route via an OSPF type 5 LSA. If al protocol preferences are default, which route will be installed in the route table?

The route learned via IS-IS will be installed.

The route learned via the OSPF type 5 LSA will be installed.

Both routes will be installed, if ECMP is enabled.

Both routes will be installed, regardless of whether ECMP is enabled.

QUESTION 138
What happens by default on an Nokia 7750 SR when a null encapsulated SAP receives a frame with a VLAN tag?

The original VLAN tag is removed.

The original VLAN tag is kept.

The VLAN tag is replaced by a provider tag.

The VLAN tag is kept and a provider tag is added.

QUESTION 139
Click the exhibit.

Router R2 is advertising prefix 192.168.1.0/27 with community “no-advertise” towards AS 65002.
Which routers receive an update for that prefix?

Router R3 only.

Routers R3 and R4 only.

Routers R3, R4 and R5 only.

Router R2 does not advertise an update for the prefix.

QUESTION 140
Click the exhibit.

Considering that both routers C and D are advertising the eBGP learned prefix 10.5.0.0/16 into ISP X, which of the following best describes the route advertisement within ISP X?

Router C sends the update to routers E and F only.

Router C sends the update to routers D, E and F.

Router C sends the update to routers A, B, E and F.

Router C sends the update to routers A, B, D, E and F.

QUESTION 141
Which of the following types of networks are supported on an Nokia 7750 SR for OSPF? Choose two answers.

Broadcast

Non-broadcast multi-access

Point-to-point

Point-to-multipoint

QUESTION 142
What are the types of networks supported on an Nokia 7750 SR for OSPF? (Choose 2)

Broadcast

Non-Broadcast Multi-Access

Point-to-Point

Point-to-Multipoint

QUESTION 143
Click the exhibit.

After router A receives the BGP update for the 10.3.3.0/24 prefix, which routers will the route be propagated to?

All routers with which it has a BGP session.

All routers with which it has a BGP session, except the router it received the update from, which is router B.

All routers with which it has a BGP session, except the router it received the update from, which is router C.

All routers with which it has a BGP session, except the router it received the update from, which is router D.

Only eBGP neighbors.

QUESTION 144
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 unlabeled to the prefix 192.10.1.2.

MPLS Echo Request packets are sent within the LDP tunnel that are signaled for 192.10.1.2.

MPLS Echo Request packets are sent within the RSVP-TE tunnel that are signaled for 192.10.1.2.

MPLS Echo Request packets are sent over TCP.

QUESTION 145
Click on the exhibit.

What is the possible reason that the label for prefix 192.10.1.2/32 is not active?

The router does not have a route to reach to the peer 10.10.10.2/32.

The router does not have a route to reach to the prefix 192.10.1.2/32.

The router does not have an export policy defined to export the prefix 192.10.1.2/32 into LDP.

The router receives an invalid label for the prefix 192.10.1.2/32 from its peer.

QUESTION 146
Click on the exhibit.

When router R1 forwards a PATH message to router R2, which of the following about the PATH message’s IP header is TRUE?