A network administrator needs to configure a floating static route to serve as an automati… — CompTIA Network+

A network administrator needs to configure a floating static route to serve as an automatic failover backup path for an internal network segment currently learned dynamically via OSPF ( $192.168.10.0/24$ , Administrative Distance of $110$ ). Which of the following route configurations will ensure the backup static route remains inactive in the routing table until the primary OSPF route fails?

Configure a static route to $192.168.10.0/24$ with an Administrative Distance value set higher than $110$ , such as $130$ .Cevap
B
Configure a static route to $192.168.10.0/24$ using the default static route Administrative Distance of $1$ .
C
Configure a static route to $192.168.10.0/24$ combined with Port Address Translation (PAT) overload to adjust the path metric automatically.
D
Configure a static route to $192.168.10.0/25$ with an Administrative Distance of $130$ .

Cevap

Configure a static route for the target destination network with an Administrative Distance configured higher than the primary dynamic routing protocol's Administrative Distance (for example, setting AD to 130 when OSPF uses 110).

A floating static route is designed for backup redundancy by assigning it a higher Administrative Distance (AD) than the primary routing source. Since OSPF has an AD of 110, setting the static route's AD to a value like 130 keeps it out of the active forwarding table until the OSPF route disappears.

Adım Adım Çözüm

Identify the Administrative Distance (AD) of the primary dynamic routing protocol.

The primary OSPF route for network

192.168.10.0/24

has a default AD of

110

Administrative Distance indicates the trustworthiness of a routing source; lower values are preferred.

Determine the required Administrative Distance for the backup floating static route.

The static route must be configured with an AD strictly greater than

110

(e.g.,

130

Setting a higher AD ensures the static route is untrusted while OSPF is functional and will not be installed into the active routing table.

Verify failover mechanics.

When the primary OSPF neighbor or link fails, the OSPF route is removed from the routing table, allowing the floating static route (

AD = 130

) to be installed and forward traffic.

Routers select the active route based on Administrative Distance when prefix lengths are identical.

Anahtar Kavram

Floating Static Routes and Administrative Distance

Soru

Cevap

Adım Adım Çözüm

Anahtar Kavram

Sık Yapılan Hatalar

Konular

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