4A0-C01 Exam Questions

Which of the following are characteristics of an LSP? (Choose two)

Click on the exhibit. Based on the topology shown and the route tables of routers R3 and R4, which of the following is correct?

Fill in the blanks: The device at the beginning of an LSP is referred to as the_________, and the device at the end of an LSP is referred to as the ___________.

Which of the following statements regarding LSPs are true? (Choose two)

Click on the exhibit. The numbers beside the links are the metrics for that link. Given the diagram, what path will traffic follow from router R1 to router R7, and from router R7 t...

The destination IP address of a received unlabeled packet is successfully matched in the FIB. Which of the following is FALSE?

Click on the exhibit. The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF. The router with system address 10.10.10.1 is o...

Click on the exhibit. OSPF is operational on all links in the network diagram, all links have the same cost and all routers are configured with an ECMP value of 4. Router R4 advert...

Click on the exhibit button below. Consider the following: Routers R1 and R4 are in Area 1. Routers R4 and R5 in Area 0. Routers R5 and R3 are in Area 2. To support LDP-over-RSVP t...

Which of the following routing protocols are supported on the Alcatel-Lucent 7750 SR to enable constraint-based LSPs? (Choose two)

Which of the following best describes a unicast IPv6 address?

Which OSPFv3 LSA advertises an ASBR?

Click on the exhibit. 192.168.3.1 is a loopback interface on router R2 and is distributed to OSPF area 0, but the ping fails from router R3. Which of the following is a possible so...

Which of the following best describes distance vector protocols?

Which of the following statements regarding admin groups is FALSE?

Click on the exhibit button below. Consider the output shown; what table is displayed?

Which of the following statements is true of an established LDP session?

Which of the following correctly describes an IPV6 header compared to an IPv4 header?

Refer to the exhibit below. The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-I...

Click on the exhibit. Router R2 has a directly connected interface to network 192.168.3.0/24 that is included in IS-IS. If router R4 redistributes the IS-IS route to 192.168.3.0/24...

In MPLS, labels are distributed in the opposite direction of the data flow.

When a device receives a labeled packet, which of the following can occur?

Click on the exhibit. Router R2 uses IS-IS to advertise the network 192.168.3.0/24 to R1. How can router R1 discard the route?

Which of the following statements best describes downstream unsolicited label distribution?

What event causes an OSPF adjacency to change from 'down' to 'two way'?

Why does IPv6 not use ARP?

Which of the following statements best defines an LSP?

An LSP path is configured as follows: - Shared-explicit reservation style - Make-before-break (MBB) enabled - 500Mpbs bandwidth reserved on a 1Gbps link With 100Mbps of unreserved...

Which of the following LDP messages are used in the successful establishment of LDP sessions? Choose three answers

Click on the exhibit button below. Assume the following: - Each router's OSPF interfaces are in the areas shown. - Bidirectional LDP-over-RSVP tunnels extend from routers R1 to R3...

Which OSPFv3 LSA type is generated by an ABR to advertise prefixes from one area to another?

Click on the exhibit. A service provider is deploying a 6 over 4 tunnel to connect a customer's corporate IPv6 network to all devices at the branch office as shown in the exhibit....

How does MPLS-TE overcome the issue of IP hyper-aggregation?

Router R4 originates 500 RSVP signaled LSPs with default hello and refresh timer settings If the only downstream communication fails (link is operationally UP), how long will RSVP...

Click on the exhibit. The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS rout...

An Alcatel - Lucent 7750 SR receives a route from an IS-IS LSP with internal reachability, and receives the same route from an OSPF Type 5 LSA. If all protocol preferences are defa...

A new router is added to a broadcast network. What is used by IS-IS as the tie breaker for selecting the DIS if the priorities are the same?

Which of the following indicates the path over which an LSP's tail end router will return an RSVP RESV message?

Click on the exhibit. Two neighboring OSPF routers have exchanged the packets shown. What state is the adjacency in?

A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower...

Which component of the Alcatel-Lucent 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?

If an LSP's loose primary path includes the statement "include green" and "exclude red;" how does CSPF choose the LSP's path?

Click on the exhibit. In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub or NSSA networks, which of the follo...

Click on the exhibit. Router R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown. How many routes will router R4 have in its IPv6 route ta...

If the OSPF reference bandwidth is set to 1000 Gbps. what is the cost of a 1 Gbps interface?

Which of the following best describes the function of an OSPF Type 4 LSA?

Which of the following is a difference between IS-IS and OSPF?

What is the significance of receiving a packet with the bottom MPLS label S bit set to 1?

Click on the exhibit.

A static route needs to be configured with a next-hop that is NOT directly connected to the router. Which of the following must be TRUE?