CCNA IP Routing Practice Test 19 — 15 Questions

Question 1

Drag and drop the following OSPFv2 neighbor state transitions and DR/BDR election steps into the correct order for a multi-access network where a new router joins an existing OSPF area.

Accepted Answer

Down -> Init -> 2-Way -> ExStart -> Exchange -> Loading -> Full. The new router first discovers neighbors via Hello. Then DD, LSR, LSU exchange synchronizes databases. DR/BDR election happens before Full state is achieved.

Answer

Down -> Init -> 2-Way -> ExStart -> Exchange -> Full -> Loading

Answer

Down -> Init -> ExStart -> 2-Way -> Exchange -> Loading -> Full

Answer

Down -> Init -> 2-Way -> Exchange -> ExStart -> Loading -> Full

Question 2

Drag and drop the following OSPFv2 neighbor state transitions and DR/BDR election steps into the correct order for a multi-access network with default priority values.

Accepted Answer

Down, Init, 2-Way (DR/BDR election), ExStart, Exchange, Loading, Full. The correct OSPF neighbor state progression on a multi-access network is: Down, Init, 2-Way (with DR/BDR election), ExStart (master/slave negotiation), Exchange (DBD exchange), Loading (link-state request and update), and Full. Each option missing the Loading state or placing it incorrectly fails to represent the complete adjacency process.

Answer

Down, Init, ExStart, Exchange, Loading, 2-Way (DR/BDR election), Full

Answer

Down, Init, 2-Way (DR/BDR election), Loading, Exchange, ExStart, Full

Answer

Down, Init, 2-Way (DR/BDR election), ExStart, Exchange, Full

Question 3

Drag and drop the following commands into the correct order to configure OSPFv3 for IPv6 on a Cisco router.

Accepted Answer

ipv6 unicast-routing. Commands must be executed in order: global config, IPv6 routing, interface config, OSPFv3 on interface, then verification.

Question 4

Drag and drop the following steps into the correct order to explicitly configure OSPFv3 for IPv6 on a Cisco IOS-XE router, assuming no OSPFv3 routing process exists beforehand.

Accepted Answer

Enable IPv6 unicast routing globally [CORRECT]. To configure OSPFv3, first globally enable IPv6 unicast routing (A). Next, create the OSPFv3 routing process (C) so that it is defined before interfaces try to use it. Then, configure OSPFv3 on the relevant interfaces (B) to activate routing. Finally, verify the OSPFv3 adjacency (D) to confirm neighbors are formed. This sequence avoids automatic process creation and ensures all steps are explicitly controlled.

Question 5

Drag and drop the following steps into the correct order to configure OSPFv3 for IPv6 on a Cisco router.

Accepted Answer

1. Enter global configuration mode. 2. Create the OSPFv3 process and assign a process ID. 3. Configure a router ID. 4. Enter interface configuration mode. 5. Enable OSPFv3 on the interface.. After entering global config, create the OSPFv3 process, set a router ID, then enable OSPFv3 on the desired interfaces under interface configuration.

Answer

1. Enter global configuration mode. 2. Enter interface configuration mode. 3. Enable OSPFv3 on the interface. 4. Create the OSPFv3 process and assign a process ID. 5. Configure a router ID.

Answer

1. Enter global configuration mode. 2. Create the OSPFv3 process and assign a process ID. 3. Enter interface configuration mode. 4. Enable OSPFv3 on the interface. 5. Configure a router ID.

Answer

1. Enter global configuration mode. 2. Configure a router ID. 3. Enter interface configuration mode. 4. Enable OSPFv3 on the interface. 5. Create the OSPFv3 process and assign a process ID.

Question 6

Which TWO statements accurately describe OSPFv3 configuration and verification for IPv6?

Accepted Answer

OSPFv3 uses IPv6 link-local addresses for neighbor discovery and next-hop addresses.. OSPFv3 uses IPv6 link-local addresses for neighbor discovery and next-hop addresses. Option C is correct because the 'ipv6 ospf area ' interface command enables OSPFv3 on that interface. Option B is incorrect: OSPFv3 does not use the 'network' command; instead, it relies on interface-level configuration. Option D is incorrect: 'ipv6 router ospf ' is a global configuration command to enter OSPFv3 router configuration mode, not an interface command. Option E is incorrect: 'show ipv6 ospf neighbor' displays neighbor adjacencies, not the link-state database; use 'show ipv6 ospf database' for that.

Answer

The 'network' command under 'ipv6 router ospf' is used to advertise subnets into OSPFv3.

Answer

The 'ipv6 router ospf <process-id>' command is used on an interface to enable OSPFv3.

Answer

The 'show ipv6 ospf neighbor' command displays the OSPFv3 link-state database.

Question 7

Drag and drop the following steps into the correct order to configure HSRP version 2 on an interface and ensure the router becomes the active router, then verify the HSRP state.

Accepted Answer

1. Configure HSRP version 2 on the interface
2. Configure the HSRP group and virtual IP address
3. Set the HSRP priority to a higher value
4. Enable HSRP preempt
5. Verify HSRP state using show standby. The correct order for configuring HSRP version 2 to ensure the router becomes the active router is: first configure HSRP version 2 on the interface, then configure the HSRP group and virtual IP address, then set the HSRP priority to a higher value, then enable HSRP preempt, and finally verify using 'show standby'. Only option A follows this sequence. Options B, C, and D are incorrect because they place version after group, priority before version, or preempt before priority.

Answer

1. Configure the HSRP group and virtual IP address
2. Set the HSRP priority to a higher value
3. Enable HSRP preempt
4. Configure HSRP version 2 on the interface
5. Verify HSRP state using show standby

Answer

1. Configure HSRP version 2 on the interface
2. Set the HSRP priority to a higher value
3. Enable HSRP preempt
4. Configure the HSRP group and virtual IP address
5. Verify HSRP state using show standby

Answer

1. Configure HSRP version 2 on the interface
2. Configure the HSRP group and virtual IP address
3. Enable HSRP preempt
4. Set the HSRP priority to a higher value
5. Verify HSRP state using show standby

Question 8

Drag and drop the following steps into the correct order to configure HSRP on a Cisco IOS-XE router, including priority, preempt, virtual IP, and then verify the active/standby election and failover process.

Accepted Answer

1. Configure the interface with an IP address. 2. Set the HSRP virtual IP address. 3. Configure the HSRP priority. 4. Enable HSRP preempt. 5. Verify HSRP status. 6. Test failover.. First, the interface is configured. Then the virtual IP is set, followed by priority and preempt. Verification confirms the election, and failover testing demonstrates the preempt mechanism works.

Answer

1. Configure the interface with an IP address. 2. Set the HSRP virtual IP address. 3. Enable HSRP preempt. 4. Configure the HSRP priority. 5. Verify HSRP status. 6. Test failover.

Answer

1. Configure the interface with an IP address. 2. Configure the HSRP priority. 3. Set the HSRP virtual IP address. 4. Enable HSRP preempt. 5. Verify HSRP status. 6. Test failover.

Answer

1. Configure the HSRP virtual IP address. 2. Configure the interface with an IP address. 3. Configure the HSRP priority. 4. Enable HSRP preempt. 5. Verify HSRP status. 6. Test failover.

Question 9

Drag and drop the following steps into the correct order to configure HSRP on an interface and verify the active/standby election process, including failover and verification.

Accepted Answer

Enter interface configuration mode, set HSRP version, configure virtual IP, set priority (if needed), enable preempt, then verify with 'show standby'.. Only option A correctly orders the steps for configuring HSRP on an interface. The proper sequence is: enter interface configuration mode, set the HSRP version, configure the virtual IP, set priority if needed, enable preempt, and verify with 'show standby'. Options B, C, and D contain incorrect steps or order. B suggests creating a VLAN and assigning an IP to the VLAN interface, which is not part of HSRP configuration (HSRP is configured on an existing Layer 3 interface, not by creating a VLAN). C places priority before virtual IP and uses 'show running-config' for verification, which does not show active/standby roles. D incorrectly assumes HSRP is enabled globally and uses 'debug standby' for initial verification, which is not the standard first verification command.

Answer

Enter global configuration mode, create a VLAN, assign an IP address, then enable HSRP on the VLAN interface.

Answer

Configure HSRP priority first, then set the virtual IP, then enter interface configuration mode, and finally verify with 'show running-config'.

Answer

Enable HSRP globally with a 'router hsrp' command, then assign the virtual IP on the interface, and verify with 'debug standby'.

Question 10

Drag and drop the following steps into the correct order to configure and verify HSRP active/standby election, including priority, preempt, virtual IP, and failover verification.

Accepted Answer

1. Configure interface with IP address and no shutdown
2. Set HSRP priority and preempt
3. Configure HSRP virtual IP
4. Verify HSRP state and failover with 'show standby'. The order ensures the interface is ready, then priority and preempt are set to influence the election, followed by the virtual IP and verification of failover behavior.

Answer

1. Configure HSRP virtual IP
2. Set HSRP priority and preempt
3. Configure interface with IP address and no shutdown
4. Verify HSRP state and failover with 'show standby'

Answer

1. Set HSRP priority and preempt
2. Configure HSRP virtual IP
3. Configure interface with IP address and no shutdown
4. Verify HSRP state and failover with 'show standby'

Answer

1. Configure HSRP virtual IP
2. Configure interface with IP address and no shutdown
3. Set HSRP priority and preempt
4. Verify HSRP state and failover with 'show standby'

Question 11

Which TWO statements are true regarding HSRP active/standby election, priority, and preemption?

Accepted Answer

The router with the highest priority becomes the active router.. In HSRP, the router with the highest priority wins the election to become the active router (A correct). If preemption is enabled, a router with a higher priority can take over the active role from a lower-priority active router (E correct). Option B is incorrect: when priorities are equal, the router with the highest IP address in the standby group is chosen, not the lowest. Option C is incorrect: HSRP priority ranges from 0 to 255, not 0 to 100. Option D is incorrect: preemption is disabled by default on all HSRP interfaces. Option F is incorrect: a priority of 0 is used to indicate that the router will not participate in the election or will immediately give up the active role, but it does not mean it will never become active; in fact, it can be configured to force a new election.

Answer

The router with the lowest IP address in the standby group becomes the active router.

Answer

HSRP priority can be configured from 0 to 100, with 100 being the highest.

Answer

Preemption is enabled by default on all HSRP interfaces.

Answer

The standby router uses a priority of 0 to indicate it will never become active.

Question 12

Drag and drop the following steps into the correct order to describe the router's routing table lookup process for a destination IP address, including the best-path selection logic (longest prefix match, then administrative distance, then metric) and the final forwarding decision.

Accepted Answer

1. Perform longest prefix match on destination IP address
2. If multiple routes match, compare administrative distance
3. If AD is equal, compare metric
4. Forward packet using the best route. The router applies longest prefix match first, then administrative distance, then metric, in that order, to select the best path and forward the packet.

Answer

1. Compare administrative distance of all routes
2. Compare metric of routes with lowest AD
3. Perform longest prefix match on remaining routes
4. Forward packet using the best route

Answer

1. Compare metric of all routes
2. Compare administrative distance of routes with lowest metric
3. Perform longest prefix match on remaining routes
4. Forward packet using the best route

Answer

1. Perform longest prefix match on destination IP address
2. If multiple routes match, compare metric
3. If metric is equal, compare administrative distance
4. Forward packet using the best route

Question 13

Drag and drop the following steps into the correct order to describe how a router selects the best path and forwards a packet, using the routing table lookup process from destination IP to forwarding decision.

Accepted Answer

Step 1: Examine the destination IP address of the packet.
Step 2: Perform a longest prefix match on the routing table.
Step 3: Determine the next-hop IP address and outgoing interface.
Step 4: Forward the packet to the next hop.. The router first identifies the destination IP, then finds the best matching route using longest prefix match, and forwards to the next hop.

Answer

Step 1: Perform a longest prefix match on the routing table.
Step 2: Examine the destination IP address of the packet.
Step 3: Determine the next-hop IP address and outgoing interface.
Step 4: Forward the packet to the next hop.

Answer

Step 1: Examine the destination IP address of the packet.
Step 2: Determine the next-hop IP address and outgoing interface.
Step 3: Perform a longest prefix match on the routing table.
Step 4: Forward the packet to the next hop.

Answer

Step 1: Determine the next-hop IP address and outgoing interface.
Step 2: Examine the destination IP address of the packet.
Step 3: Perform a longest prefix match on the routing table.
Step 4: Forward the packet to the next hop.

Question 14

Drag and drop the following steps into the correct order for the router's routing table lookup process when forwarding a packet to a destination IP address, including the best-path selection logic.

Accepted Answer

1. Match the destination IP address with the longest prefix in the routing table. 2. If multiple routes match, select the route with the lowest administrative distance. 3. If still multiple routes, select the route with the lowest metric.. The routing table lookup first matches the destination with the longest prefix, then applies tie-breakers: lowest administrative distance, then lowest metric, to determine the best path for forwarding.

Answer

1. Match the destination IP address with the longest prefix in the routing table. 2. If multiple routes match, select the route with the lowest metric. 3. If still multiple routes, select the route with the lowest administrative distance.

Answer

1. Match the destination IP address with any prefix in the routing table (first match). 2. If multiple routes match, select the route with the lowest administrative distance. 3. If still multiple routes, select the route with the lowest metric.

Answer

1. Match the destination IP address with the longest prefix in the routing table. 2. If multiple routes match, select the route with the lowest metric. 3. If still multiple routes, select the route with the highest administrative distance.

Question 15

Drag and drop the following steps into the correct order to describe the router's routing table lookup process for a destination IP address, including best-path selection using longest prefix match, administrative distance, and metric.

Accepted Answer

1. Perform longest prefix match on the destination IP address against all routes in the routing table.
2. If multiple routes match, compare administrative distances; choose the route with the lowest AD.
3. If multiple routes have the same AD, compare metrics; choose the route with the lowest metric.
4. Forward the packet using the selected route.. The order follows the router's decision process: longest prefix match first, then administrative distance, then metric, leading to the forwarding decision.

Answer

1. Compare administrative distances of all routes; choose the route with the lowest AD.
2. Perform longest prefix match on the destination IP address against the remaining routes.
3. If multiple routes have the same AD, compare metrics; choose the route with the lowest metric.
4. Forward the packet using the selected route.

Answer

1. Perform longest prefix match on the destination IP address against all routes in the routing table.
2. If multiple routes match, compare metrics; choose the route with the lowest metric.
3. If multiple routes have the same metric, compare administrative distances; choose the route with the lowest AD.
4. Forward the packet using the selected route.

Answer

1. Compare metrics of all routes; choose the route with the lowest metric.
2. Perform longest prefix match on the destination IP address against the remaining routes.
3. If multiple routes have the same metric, compare administrative distances; choose the route with the lowest AD.
4. Forward the packet using the selected route.