01
True or false
1 point
True or false: When forwarding a packet, a router uses administrative distance to choose between installed routes for different matching prefixes.
Free Practice Quiz Question List
1 Routing Tables and Route Selection Online Quiz Questions
Use this free practice quiz with 20 questions to review 1 Routing Tables and Route Selection, test your knowledge, and prepare for your next test or exam.
20 questions
02
True or false
1 point
True or false: A connected route describes a network attached directly to an active interface.
- A
True
- B
False
03
Choose one
1 point
In the route entry O 10.20.0.0/16 [110/20] via 192.0.2.2, what does the initial O indicate?
- A
A connected route
- B
An OSPF route
- C
A static route
- D
An outgoing interface
04
Fill in the blank
1 point
The IPv4 fallback route that can match any destination is written as .
05
Written response
1 point
A routing table contains 10.0.0.0/8, 10.1.0.0/16, and 0.0.0.0/0. Which prefix length is selected for destination 10.1.8.99? Enter the prefix length as an integer, without a slash.
06
Choose one
1 point
A router has routes for 10.0.0.0/8, 10.1.0.0/16, 10.1.2.0/24, and 0.0.0.0/0. Which route does it use for destination 10.1.2.99?
- A
10.0.0.0/8 - B
10.1.0.0/16 - C
10.1.2.0/24 - D
0.0.0.0/0
07
Fill in the blank
1 point
If no route matches a packet's destination and there is no applicable default route, the router the packet.
08
Written response
1 point
On Cisco platforms, what is the name for the value used to compare route preference when routes for the same prefix come from different sources?
09
Choose all
1 point
Which of the following can be sources or types of a route in a routing table? Select all that apply.
- A
A connected interface
- B
A static configuration
- C
A routing protocol
- D
A next hop
- E
An outgoing interface
10
Choose one
1 point
In the Cisco-style entry O 10.20.0.0/16 [110/20] via 192.0.2.2, what do the values 110/20 represent, in order?
- A
Metric, then administrative distance
- B
Administrative distance, then route metric
- C
Next hop, then outgoing interface
- D
Prefix length, then route age
11
Choose all
1 point
Which statements accurately describe route installation and packet forwarding? Select all that apply.
- A
A routing source may use its protocol-specific metric to compare its candidate paths.
- B
For the same prefix learned from different sources, the router may compare route preference.
- C
For packet forwarding, the router selects the longest matching prefix among installed routes.
- D
Administrative distance directly replaces longest-prefix matching for every packet.
- E
The route with the smallest metric always wins across all protocols and platforms.
12
Choose one
1 point
On a Cisco platform, a static route and an OSPF route compete for the same prefix. Using the stated default administrative distances, which source is preferred?
- A
The static route, because its default administrative distance is 1 rather than 110
- B
The OSPF route, because its default administrative distance is 110 rather than 1
- C
Neither route; equal administrative distances are required
- D
The route with the longer prefix, regardless of whether the prefixes differ
13
Choose one
1 point
A routing table contains 10.0.0.0/8 via Router A, 10.1.0.0/16 via Router B, 10.1.2.0/24 via Router C, and 0.0.0.0/0 via Router D. Which router is used for destination 192.0.2.15?
- A
Router A, using
10.0.0.0/8 - B
Router B, using
10.1.0.0/16 - C
Router C, using
10.1.2.0/24 - D
Router D, using
0.0.0.0/0
14
Open ended
1 point
On a Cisco platform using its default administrative distances, a static route and an OSPF route are both candidate routes for the same /24 prefix. The routing table also contains an installed /16 route that matches a packet’s destination within that /24. Which candidate is preferred for installation for the /24 prefix, and which installed prefix is used to forward the packet? Explain both decisions.
15
Choose one
1 point
A router lists a destination as a connected route. Which situation does that describe?
- A
A network learned only from a routing protocol
- B
A network attached directly to an active interface
- C
A route used only when a packet has no destination address
- D
A route that always has the lowest metric
16
Written response
1 point
In the destination prefix 10.20.0.0/16, how many leading address bits identify the network? Enter the number of bits.
17
Choose one
1 point
Which destination prefix represents the IPv6 default route?
- A
0.0.0.0/0 - B
::/0 - C
::1/128 - D
10.0.0.0/8
18
Written response
1 point
Some routing-table entries include a field showing how long ago a route was learned or updated. What is this field called? Enter one field name.
19
Choose one
1 point
In the Cisco-style route entry O 10.20.0.0/16 [110/20] via 192.0.2.2, 00:00:12, GigabitEthernet0/0, which value identifies the outgoing interface?
- A
10.20.0.0/16 - B
192.0.2.2 - C
GigabitEthernet0/0 - D
[110/20]
20
True or false
1 point
A routing source may use its protocol-specific metric to compare its own candidate paths before choosing a route to install.
- A
True
- B
False
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