4A0-101 Exam Questions

When an OSPF adjacency is stuck in the "ExchStart" state, what is the most likely cause?

Select the answer below that correctly lists the 5 different OSPF packet types.

What causes an adjacency to change from "Init" to "Two Way"?

When redistributing OSPF into RIP V2 what must be taken into consideration for the redistribution to take place?

What is wrong with the following filter configuration from an Alcatel-Lucent 7750 SR? RTR-B# configure filter RTR-B>config>filter# ip-filter 1 create RTR-B>config>filter>ip-filter$...

When configuring a filter, where should the most explicit entries be placed?

From the list below identify two matching criteria supported for IP filters on the Alcatel-Lucent 7750 SR: (Choose two)

What command is used on the Alcatel-Lucent 7750 SR to define the default action to be taken if a packet does not match any entry in an IP filter?

What is another term to describe the default route for a client?

Which of the following is not one of the MT topologies defined for IS-IS?

Click the exhibit button. The 192 168 3.0/24 network is learned on router R1 via IS-IS Given the OSPF configuration shown, and assuming that the OSPF adjacency between routers R1 a...

Which of the following best describes the actions after an IS-IS router receives on a broadcast interface, a newer LSP than the one in its database?

Refer to the exhibit. Assume that OSPFv3 is properly configured on all routers and that R4 advertises its system prefix into Area 0. Which of the following statements best describe...

Click the exhibit button. 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 possibl...

Which of the statements about the output in the exhibit is FALSE?

Click the exhibit button. Given the diagram in the exhibit, what would be the correct static route configuration on the router on the right, if it is an Alcatel-Lucent 7750 SR?

Which of the following statements regarding link state protocols are true? (Choose two)

Which of the following OSPFv3 LSAs have an AS scope?

An operator configures an Alcatel-Lucent 7750 SR with a loopback interface and IPv6 address. The operator then configures a routing policy to redistribute the loopback prefix into...

Click the exhibit button. Which of the following statements best describes the format of data traffic sent from the PC to the server?

If two routers running IS-IS protocols are exchanging Hello packets with different authentication types, which of the following statements regarding the adjacency state established...

Which of the following is optional when configuring IS-IS on the Alcatel-Lucent 7750 SR?

Which of the following TLV fields is included in an IS-IS Hello packet?

What is the CIDR summary for the block of networks from 193.4532.0/24 to 193.45.47.0/24?

The exhibit shows a route to 2001:DB8:1:200::/56 in the IPv6 route table. How did the route get into the route table?

Which of the statements below best describes the operation of the IPv6 anycast address?

Click the exhibit button. A static route has been configured on router R1 to reach the PC at 139.120.121.2. However, as shown in the exhibit, the ping fails. What is the most likel...

Which three IS-IS PDU types are used for database synchronization?

Refer to the exhibit below. R1 distributes its loopbacks into IS-IS and globally routed addresses are configured as shown. How many routes will R4 have in its IPv6 route table?

Which of the following statements regarding IS-IS DIS is false?

Which of the following describes the method used to resolve an IPv6 address to a MAC address?

A router sets the E bit in the flags of its Type 1 LS

Click the exhibit button. Router 2 advertises the network 192.168.3.0/24 to router R1 via IS-IS. How can router R1 ensure that it discards the route?

In IS-IS database synchronization, each router compares each LSP described in the received CSNPs with the LSPs in its own database. Which of the following actions is taken if the d...

What is the primary purpose of classless interdomain routing (CIDR)?

What is the source IP address in an OSPF update?

How are LSPs acknowledged on IS-IS broadcast links?

Which of the following are types of routers in an IS-IS topology? Choose three answers

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...

Which of the following LSA types stay within an OSPF area, and are not flooded outside of the area? Choose two answers.

Which one of the following is a valid IPv6 multicast address?

Click the exhibit button. What is the command to configure a static route on the 7750 service router R1 to reach the network behind router R2?

Click the exhibit button. Router R2 advertises the network 192.168.3.0/24 to router R1 via RIP. How can router R1 ensure that it discards the route?

Click the exhibit button. Given the topology and the route-tables shown, which of the following is most likely to be the configuration on router R1?

A router is configured with the command "configure router ecmp 4". There are two best paths to a given destination with an equal cost in the IGP. Which of the following best descri...

Refer to the exhibit below. IS-IS IPv6 routing is configured in the network with globally routed addresses as shown. How many routes will R4 have in its IPv6 route table?

Click the exhibit button. Assuming point-to-point links, which of the following statements is true?

Click the exhibit button. Assuming that the router ID of the router shown is 10.10.10.4, which of the following statements regarding the CLI output is true?

Which of the following statements regarding OSPF routing updates on a point-to-point link is true?

When IS-IS is electing a DIS, what is used as the tie breaker on an Alcatel-Lucent 7750 SR, if the priorities are the same?