Timedora
Free Practice Quiz Question List

1 Routing Tables and Packet Forwarding Online Quiz Questions

Use this free practice quiz with 20 questions to review 1 Routing Tables and Packet Forwarding, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

When forwarding a packet, a router chooses the installed route with the longest matching prefix, even if a less-specific matching route has a more favorable administrative distance. True or false?

  1. A

    True

  2. B

    False

02
Choose one
1 point

In the Cisco-style routing-table entries shown in the material, what does the route code C indicate?

  1. A

    A route learned through OSPF

  2. B

    A route for a network directly connected to an active, configured interface

  3. C

    A static default route

03
Choose one
1 point

A route specifies a next-hop IP address. What does that address identify?

  1. A

    It is always the packet's final destination.

  2. B

    It identifies the outgoing routing protocol.

  3. C

    It identifies a neighboring router to which the packet should be sent.

04
Written response
1 point

What route-selection principle makes a router choose the most specific installed route matching a packet's destination?

05
Choose all
1 point

Which are sources from which a router's routing table can contain routes? Select all that apply.

  1. A

    Connected interfaces

  2. B

    Static configuration

  3. C

    The destination addresses of packets being forwarded

  4. D

    Routing protocols

06
True or false
1 point

If no specific installed route matches a packet's destination, the router uses an installed default route if one is available. True or false?

  1. A

    True

  2. B

    False

07
Choose one
1 point

Using the installed routes in the worked example, which route is selected for destination 10.20.3.25?

  1. A

    The OSPF 10.20.2.0/24 route via 192.0.2.6

  2. B

    The connected 10.10.1.0/24 route out G0/0

  3. C

    The static 10.20.0.0/16 route via 192.0.2.2

  4. D

    The default route via 192.0.2.2

08
Choose all
1 point

Using the worked-example routes, which destinations are forwarded by the static 10.20.0.0/16 route? Select all that apply.

  1. A

    10.20.3.25

  2. B

    10.20.8.1

  3. C

    10.20.2.25

  4. D

    203.0.113.9

09
Written response
1 point

Using the worked-example routes, which outgoing interface is used to forward a packet destined for 10.20.2.200?

10
Choose one
1 point

Two routing sources offer routes to the same destination prefix. Which factor is used to choose which route or routes to install?

  1. A

    The packet's destination address

  2. B

    The route-source preference, often called administrative distance

  3. C

    The longest-prefix rule alone, regardless of whether the routes are installed

  4. D

    The outgoing interface's name

11
Open ended
1 point

A router has installed a static route to 10.20.0.0/16 and an OSPF route to 10.20.2.0/24. Explain how route-source preference is used if different sources compete to provide the same /16 prefix, then identify the route, next hop, and outgoing interface used for a packet destined for 10.20.2.25.

12
Choose one
1 point

In a Cisco-style routing table, what does the route code O indicate?

  1. A

    A directly connected route

  2. B

    A route learned through OSPF

  3. C

    A static default route

  4. D

    A route learned through RIP

13
Choose one
1 point

A routing-table entry is marked S. What does this tell you about how the route was learned?

  1. A

    It is learned automatically from an active interface.

  2. B

    It is selected because it has the longest matching prefix.

  3. C

    An administrator configured the route.

  4. D

    It is always used when a packet has no matching route.

14
True or false
1 point

True or false: When forwarding a packet, a route with a lower administrative distance can beat a more-specific installed route even if both prefixes match the destination.

  1. A

    True

  2. B

    False

15
Choose one
1 point

A router has an installed default route, and a packet's destination matches none of its more-specific routes. What should the router do?

  1. A

    Use the installed default route.

  2. B

    Choose the route with the lowest metric, even if its prefix does not match.

  3. C

    Send the packet out every active interface.

  4. D

    Drop the packet because a default route cannot match an IPv4 address.

16
Written response
1 point

A route specifies a next-hop IP address. What device role does that address identify?

17
Choose one
1 point

Using the worked-example routes, where should a packet addressed to 10.10.1.50 be sent?

  1. A

    Send it to 192.0.2.2.

  2. B

    Send it to 192.0.2.6.

  3. C

    Use the default route via 192.0.2.2.

  4. D

    Send it directly out G0/0.

18
Written response
1 point

Using the worked-example routes, what next-hop IPv4 address is selected for a packet addressed to 10.20.8.1?

19
Fill in the blank
1 point

In the Cisco-style route entry O 10.30.0.0/16 [110/20] via 192.0.2.6, the first bracketed value is , and the second is the .

20
Fill in the blank
1 point

Before transmitting a packet toward a next-hop IP address, a router may need to resolve that address to a on the outgoing network.