Selected Answer: D If we need all interfaces to be passive interfaces and leave just a single or a couple of interfaces non-passive, we can set passive interface as the default configuration by using the ‘passive-interface default’ command: Router#conf t Router(config)#router ospf 1 Router(config-router)#passive-interface default Router(config-router)#no passive-interface gi0/0/0

Selected Answer: D Correct

Selected Answer: A It is recommended to configure passive-interface default under the OSPF routing process and then specifically enable the interfaces where routing adjacencies should be formed.

Selected Answer: D Answer D

Selected Answer: D no passive-interface default will "activaet" the hello in the other interfaces.

Selected Answer: B "...R1 fails and then regains operational status, it must allow 100 seconds for the routing protocol to converge before preemption takes effect." So R1 is active then goes down and R2 takes the active role. Once R1 comes up it has to wait for 100 sec before it takes over the active role Preemption delay has to be set on R1 to "tell" the router to wait 100 sec... standby 300 preempt delay minimum 100 (one comment: standby [ group-number] preempt [ delay{ [ minimum seconds] [ reload seconds] [ sync seconds]}] ) --> standby 300 delay minimum 100 is missing the preempt command

First the state is Listen and start countdown (98 remaining) SW2#show standby Vlan100 - Group 300 (version 2) State is Listen Preemption enabled, delay min 100 secs (98 remaining) Once it is ready it goes into the Standby state and the countdown is continued (67 remaining) *Mar 20 11:56:41.501: %HSRP-5-STATECHANGE: Vlan100 Grp 300 state Speak -> Standby SW2#show standby Vlan100 - Group 300 (version 2) State is Standby Preemption enabled, delay min 100 secs (67 remaining)

You described option A, but chose answer D.

Selected Answer: D Both A and D work, but for this question the answer is D. "A" works if you are only trying to share routes with one of the routers, but the question says "but the routers are not sharing routes." Aka it implies we want to share routes with both routers, not just one. From these options, D is the only one that lets you share routes with both routers.

Isn't the link to the router on Gig6? No other answer removes the passive-interface from Gig6. This is how I understood the question. An engineer connected 2 routers, the one we're configuring and another one (probably the one connected to int GigE6), so we need an answer that will enable OSPF on that interface. However, even if the L3 switch on GigE5 is required, the only answer that includes both interfaces is D.

Selected Answer: D I interpret this as the Engineer having configured two routers, but we are only seeing output from one of them. The other router connects to Interface G6, and the connection on G5 is to a switch, so it is a red herring. Answers A & B are then ruled out because they reference the wrong interface, leaving D as the correct answer

Selected Answer: A The right answer is A. router ospf 1 \n no passive-interface GigabitEthernet5. Why this option is correct If you look closely at the OSPF configuration block in the exhibit, the command passive-interface default is enabled. When passive-interface default is used, the router immediately puts all of its network interfaces into a passive state. An interface in a passive state will still advertise its network prefix to other routers, but it stops sending and receiving OSPF Hello packets. Because of that, it cannot form OSPF neighbor adjacencies or exchange routing tables over any of its ports. To let the router form a neighbor adjacency and share routes over its link to dist-sw01, you must explicitly tell OSPF to white-list that specific interface from the global passive default restriction.