Updated Feb 25, 2022 4A0-C04 Exam Dumps - PDF Questions and Testing Engine
New (2022) Nokia 4A0-C04 Exam Dumps
NEW QUESTION 17
Which of the following statements concerning OSPFv3 is false?
- A. MD5 Authentication is not supported.
- B. NSSA is not supported in OSPFv3.
- C. OSPFv3 uses a 32-bit router ID.
- D. Router LSAs do not carry IPv6 prefix information
Answer: B
NEW QUESTION 18
Click on the exhibit.
If the primary path goes down, which secondary LSP path will the head-end router select first?
- A. Secondary_Path-2
- B. Secondary_Path-4
- C. Secondary_Path-1
- D. Secondary_Path-3
Answer: D
NEW QUESTION 19
Click the exhibit.
When router A receives the BGP update for the 192.168.0.1/27 prefix, it propagates it to routers B and C.
What action is taken by router B when it receives the update?
- A. Router B propagates the BGP update to routers D and C.
- B. Router B propagates the update to routers A, C and D.
- C. Router B propagates the BGP update to router D.
- D. Router B detects duplicates in its BGP database and discards the update.
Answer: C
NEW QUESTION 20
Which of the following about VPRN route targets is FALSE?
- A. A route target appended to an IPv4 prefix produces a VPN-IPv4 prefix.
- B. Multiple route targets can be part of a single MP-BGP update.
- C. A route target is used to distinguish to which VRF table a prefix belongs.
- D. Route targets must be configured for VPRNs.
Answer: A
NEW QUESTION 21
Click the exhibit.
Routers RR1 and RR2 are route reflectors with the same Cluster-ID. How does router RA treat the updates for prefix 192.168.1.0/27 received from routers RR1 and RR2?
- A. Router RA prefers the update received from router RR2.
- B. Router RA accepts both updates and flags them as used.
- C. Router RA flags both updates as invalid.
- D. Router RA prefers the update received from router RR1.
Answer: C
NEW QUESTION 22
Graceful Restart is supported by what IGPs?
- A. IS-IS
- B. RIPv1 and RIPv2
- C. BGP
- D. OSPF
Answer: A,D
NEW QUESTION 23
Click the exhibit button.
In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding type 4 LSA generation is true?
- A. Router R3 generates a type 4 LSA that is flooded to areas 0 and 2.
- B. Router R3 generates a type 4 LSA that is flooded to area 0, and router R6 generates a type 4 LSA that is flooded to area 2.
- C. Router R3 generates a type 4 LSA that is flooded to areas 0, 1, and 2.
- D. Router R1 generates a type 4 LSA that is flooded to areas 0, 1, and 2.
Answer: B
NEW QUESTION 24
A VPLS has a service MTU of 1600. To create an IES spoke termination to the VPLS, what ip-mtu value must be used for the IES?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 25
Click on the exhibit.
An LDP tunnel is established on router R1 towards router R6. The link between routers R2 and R4 goes down.
What will happen to the MPLS data traffic to router R6 IMMEDIATELY after the link goes down?
- A. MPLS data traffic will be discarded until the IGP finds a new next-hop to router R3.
- B. MPLS data traffic will not be discarded because of fast reroute capability on router R2.
- C. MPLS data traffic will not be discarded because router R1 received labels from both next-hops, routers R2 and R3.
- D. MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.
Answer: D
NEW QUESTION 26
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?
- A. ISP 1 has a peering relationship with ISP 2 and a transit relationship with ISP 3.
- B. ISP 1 has a transit relationship with ISP 2 and a peering relationship with ISP 3.
- C. ISP 1 has a peering relationship with ISP 2 and ISP 3.
- D. ISP 1 has a peering relationship with ISP 2 and ISP 4.
- E. ISP 1 has a transit relationship with ISP 2 and ISP 4.
Answer: A
NEW QUESTION 27
Which of the following regarding MPLS encapsulation for VPRN services is TRUE?
- A. The customer's Layer 3 header is removed at the iLER.
- B. The customer's Layer 2 header is removed at the eLER.
- C. The customer's Layer 3 header is removed at the eLER.
- D. The customer's Layer 2 header is removed at the iLER.
Answer: A
NEW QUESTION 28
Which of the following best describes downstream on demand label distribution?
- A. An LSR propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC's next-hop.
- B. An LSR advertises label mappings to all peers for which it might be a next-hop for a given FEC.
- C. An LSR distributes a label mapping for a FEC when it has been requested to do so.
- D. An LSR answers requests for label mappings immediately, without waiting for a label mapping from the next-hop.
Answer: C
NEW QUESTION 29
What is the source IP address in an OSPF update?
- A. The unicast IP address of the interface the update is being sent on.
- B. The system address of the router
- C. 224.0.0.5
- D. 224.0.0.6
Answer: A
NEW QUESTION 30
Click on the exhibit.
Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. Assume the OSPF and IS-IS adjacencies are operational.
How many OSPF Type 5 LSAs will router R1 receive from router R2?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: C
NEW QUESTION 31
A static route is created using the command "static-route 2.3.4.0/24 next-hop 1.2.3.4". What is the correct traceroute command to test this static route on an Nokia 7750 SR?
- A. traceroute next-hop 1.2.3.4
- B. traceroute does not work on the Nokia 7750 SR
- C. traceroute 2.3.4.1
- D. traceroute 2.3.4.0/24 next-hop 1.2.3.4
Answer: C
NEW QUESTION 32
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?
- A. Router C sends the update to routers A, B, D, E and F.
- B. Router C sends the update to routers D, E and F.
- C. Router C sends the update to routers A, B, E and F.
- D. Router C sends the update to routers E and F only.
Answer: A
NEW QUESTION 33
How many databases does a Link State routing protocol use?
- A. Two
- B. Four
- C. One
- D. Three
Answer: D
NEW QUESTION 34
Which of the following about VPLS MAC learning is TRUE?
- A. Frames received on a SAP that are broadcast, multicast or unknown are flooded.
- B. The FDB only stores the MAC addresses of remote sites.
- C. Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.
- D. A PE keeps a single FDB for all VPLSes it has.
Answer: A
NEW QUESTION 35
What happens by default on an Nokia 7750 SR when a VPLS accepts a tagged frame at the ingress SAP
1/1/1:100?
- A. The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.
- B. The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.
- C. The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.
- D. The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.
Answer: C
NEW QUESTION 36
Click the exhibit.
This is output from router R4. Service 333 is a VPLS. Why does peer 10.10.10.1 not have an EgrLbl?
- A. The SDP to 10.10.10.1 on router R4 is shutdown.
- B. 10.10.10.1 has a different service MTU set.
- C. Router R4 has not sent a label to router R1 (10.10.10.1) yet.
- D. 10.10.10.1 has not sent a label to router R4 yet.
Answer: D
NEW QUESTION 37
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