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Free Practice Quiz Question List

3 IP Addressing and Routing Online Quiz Questions

Use this free practice quiz with 20 questions to review 3 IP Addressing and Routing, test your knowledge, and prepare for your next test or exam.

20 questions
01
Choose one
1 point

A router has no route more specific than the default route for a packet’s destination. Which route can it use to forward the packet toward an upstream router?

  1. A

    A directly connected route

  2. B

    A default route

  3. C

    A route learned only through BGP

  4. D

    A link-local route

02
Choose one
1 point

Which description best fits OSPF?

  1. A

    It exchanges reachability between autonomous systems using path-vector information.

  2. B

    It uses distance-vector updates and treats a hop count of 16 as unreachable.

  3. C

    It is a link-state IGP that builds a topology database and supports areas.

  4. D

    It is an exterior gateway protocol that selects routes only by hop count.

03
Choose one
1 point

An IPv4 subnet uses the prefix 198.51.100.64/27. How many host bits remain in each address?

  1. A

    5

  2. B

    27

  3. C

    32

  4. D

    59

04
Choose one
1 point

Which statement correctly describes IPv6 address notation?

  1. A

    A zero run can be compressed with :: more than once in one address.

  2. B

    Leading zeros in a group may be omitted, and one continuous zero run may be compressed with :: once.

  3. C

    Every IPv6 address must contain exactly eight visibly written groups.

  4. D

    A colon may be used to compress any number of separate zero groups in an address.

05
Choose all
1 point

Select all of the familiar private IPv4 ranges listed in the material.

  1. A

    10.0.0.0/8

  2. B

    172.16.0.0/12

  3. C

    172.32.0.0/12

  4. D

    192.168.0.0/16

06
Choose all
1 point

Select all the correct IPv6 prefix-to-category pairings.

  1. A

    FE80::/10 is link-local.

  2. B

    FC00::/7 is unique local.

  3. C

    FF00::/8 is multicast.

  4. D

    FF00::/8 is global unicast.

07
True or false
1 point

True or false: Routers forward IPv6 link-local addresses from one link to another.

  1. A

    True

  2. B

    False

08
True or false
1 point

True or false: A router can always compare a RIP metric directly with an OSPF metric to decide which route is preferable.

  1. A

    True

  2. B

    False

09
Written response
1 point

A router has multiple routes that match a destination and selects the one with the most network bits. What is this route-selection rule called?

10
Written response
1 point

A conventional IPv4 /26 subnet has 64 total addresses. How many usable host addresses does it support?

11
Fill in the blank
1 point

In RIPv2, a hop count of represents an unreachable destination.

12
Fill in the blank
1 point

IPv6 addresses in the FF00::/8 range are addresses.

13
Choose one
1 point

A router learns the same destination prefix through two different routing protocols. Which statement best describes how it may choose between those routes?

  1. A

    Always choose the route with the numerically lowest metric, regardless of its source.

  2. B

    Choose whichever route was learned first and ignore route-source preferences.

  3. C

    Apply route-source preference rules; metrics from different protocols may not be directly comparable.

  4. D

    Install both routes only if their metrics are numerically identical.

14
Open ended
1 point

An organization has teams that need different numbers of addresses. Explain how variable-length subnet masking can help allocate address space efficiently, and state one important constraint when planning the subnet blocks.

15
Choose one
1 point

Which address belongs to a familiar private IPv4 range?

  1. A

    172.15.5.4

  2. B

    172.20.5.4

  3. C

    172.32.5.4

  4. D

    192.0.2.4

16
Choose one
1 point

When writing an IPv6 address, which rule applies to the :: compression marker?

  1. A

    Use :: for every zero group in the address.

  2. B

    Use :: to compress two separate runs of zero groups in the same address.

  3. C

    Use :: to compress one continuous run of zero groups, at most once per address.

  4. D

    Use :: only when all eight groups are zero.

17
Choose one
1 point

What dotted-decimal subnet mask corresponds to the IPv4 prefix 192.168.10.0/26?

  1. A

    255.255.255.0

  2. B

    255.255.255.128

  3. C

    255.255.255.224

  4. D

    255.255.255.192

18
True or false
1 point

IPv6 has no broadcast addresses.

  1. A

    True

  2. B

    False

19
Written response
1 point

RIPv2 marks a destination as unreachable at 16 hops. What is the maximum usable hop count for a reachable path?

20
Written response
1 point

Which path-vector protocol exchanges reachability information between autonomous systems?