Which of the following features are supported by IS-IS? Choose three answers.
A. PDU authentication.
B. The ability to customize the link cost metric.
C. Use of Bellman-Ford routing algorithm.
D. Classless routing.
E. Updates sent as layer 3 multicast.
If a Router originates a type 1 router LSA with the E bit set what types of areas can it belong to? Select all that apply.
A. Not So Stubby Area
B. Stub Area
C. Backbone Area
D. Standard Area
What is the source IP address in an OSPF update?
A. 224.0.0.5
B. 224.0.0.6
C. The unicast IP address of the interface the update is sent on
D. The system address of the router.
A router running a link-state protocol sends an update to a neighbor. The neighbor sends an update back. Why would the neighbor do this?
A. The neighbor's link-state database has newer information than what it received in the update.
B. The neighbor sends the update as an acknowledgement.
C. The neighbor's update indicates that it has run out of space in its LSDB.
D. The neighbor's update indicates that the sequence number received is the same as the one already in its link-state database.
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 advertises the prefix 192.168.3.0/24 into OSPF.
How many entries for prefix 192.168.3.0/24 will be l n router R1's routing table?
A. 0
B. 1
C. 2
D. 3
E. 4
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?
A. CPM
B. MDA
C. Switch Fabric
D. IOM
Click on the exhibit.
All ports in the network are operationally up and have a speed of 1Gbps. Which of the following is TRUE?
A. Data traffic from network 192.168.1.0/24 to 192.168.3.0/24 will be forwarded through router R2.
B. Data traffic from network 192.168 3.0/24 to 192.168.1.0/24 will be forwarded from router R3 directly to router R1.
C. The system interface of routers R1 and R3 must be included into OSPF for traffic to flow between the 192.168.1.0/24 and 192.168.3.0/24 networks.
D. The OSPF adjacency between router R1 and router R3 is operationally up.
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 following regarding LSAs is TRUE?
A. Only router R1 will generate Type 4 LSAs.
B. Only router R3 will generate Type 4 LSAs.
C. Routers R3 and R6 will generate Type 4 LSAs.
D. Routers R1.R3 and R6 will generate Type 4 LSAs.
What type of packet will cause an OSPF router to respond with a link-state request packet?
A. Hello
B. Link-state request
C. Link-state acknowledgment
D. Link-state update
E. Database description
Click on the exhibit.
OSPF router R2 has both point-to-point and broadcast interfaces and it is not a DR for any interfaces. Router R2 detects the link failure between itself and router R1.
Which of the following is correct?
A. Router R2 sends an update to 224.0.0.5 on its broadcast and point-to-point interfaces. The DR does not send any updates.
B. Router R2 sends an update to 244.0.0.5 on its point-to-point interfaces. The DR sends an update to
224.0.0.6 on the broadcast network.
C. Router R2 sends an update to 224.0.0.5 out its point-to-point interfaces and an update to 224.0.0.6 out its broadcast interface. The DR sends updates to 224.0.0.5 on the broadcast network.
D. Router R2 sends an update to 224.0.0.6 out its point-to-point interfaces and an update to 224.0.0.5 out its broadcast interface. The DR sends an update to 224.0.0.6 on the broadcast networks.
