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An IPv6 prefix 2001:db8:70::/48 is learned dynamically with administrative distance 110. A static route via 2001:db8:1::5 should serve only as backup. Which command leaves the learned route preferred?
The optional trailing AD 200 is higher than the dynamic candidate's 110, so this same-prefix static route floats behind it.
AD 1 would cause the static prefix to override the dynamic route instead of remaining a backup.
A /0 route is a broad default and not the intended backup for only 2001:db8:70::/48.
`ip route` is for IPv4. IPv6 static routes use the separate `ipv6 route` command.
At a municipal utility, a network operations engineer is setting a Cisco routed edge to forward unmatched IPv4 traffic to ISP next hop 10.140.188.1. Which global configuration creates the required default route?
This defines an IPv4 default static route /0 to next hop 10.140.188.1. It is used when more-specific installed routes do not match the destination.
The mask 255.255.255.128 does not define /0; it matches only a restricted prefix beginning at 0.0.0.0. A genuine default has a zero mask, matching every otherwise-unrouted IPv4 destination.
This adds a host-specific mask /32 for 0.0.0.0 rather than a true catch-all /0 route.
255.255.255.255 is not the destination network ID for a /0 default route. The mask and destination are not paired correctly.
At a bank branch, the infrastructure lead requires a static route to IPv4 network 172.29.75.0/24 through adjacent router 10.34.53.1. Which IOS command configures the intended route?
The static network route uses destination 172.29.75.0 with mask 255.255.255.0 (/24) and next hop 10.34.53.1. The route matches the intended subnet.
A /32 mask would make the route host-specific and omit most of the intended /24 range.
A zero mask is a default-length /0 entry, not the specific 24-bit destination route.
This reverses the destination and next-hop positions; 10.34.53.1 is a gateway, not the announced subnet.
A Cisco router's Ethernet Gi0/0 attaches to a multiaccess segment where adjacent gateway 192.0.2.2 reaches 198.51.100.0/24. The engineer wants to state both egress interface and next-hop IP explicitly in the IPv4 static route. Which command does so?
A fully specified IPv4 static route names the destination prefix, mask, outgoing interface and adjacent next-hop IP, avoiding ambiguity on a multiaccess segment.
A /32 mask would cover only 198.51.100.0 rather than the full destination /24 subnet.
Reversing the gateway and destination makes the specified address/prefix no longer describe the remote 198.51.100.0/24 network.
`ipv6 route` is the IPv6 command family; the destination and next-hop are IPv4 addresses and require `ip route`.
A router already has a working default route. A partner network 203.0.113.0/25 must use a dedicated adjacent gateway 192.0.2.10, while all other unmatched traffic keeps its default path. Which command makes the narrow change?
The /25 route matches the approved partner block and wins longest-prefix selection there without replacing the existing global default.
A /24 route also captures 203.0.113.128–255, which is outside the required partner half-subnet.
Adding or changing a global default alters forwarding for many unrelated unmatched destinations.
A /32 covers only 203.0.113.0, not all usable hosts in the partner /25.
An edge router has IPv6 upstream neighbor 2001:db8:100::1 reachable on a connected link and needs a default path for destinations without a more-specific IPv6 route. Which IOS command is appropriate?
`ipv6 route ::/0` defines the IPv6 default prefix with the reachable global-unicast next hop. The route is used only if it is valid and no more-specific match exists.
`ip route` is the IPv4 static-route command; its IPv4 default syntax cannot take an IPv6 next hop.
A /64 route covers only one IPv6 subnet, not the entire IPv6 address space for fallback traffic.
`ipv6 address` configures interface addressing; it is not the syntax to add a default route.
An IPv6 router must prefer a primary dynamic path to destination 2001:db8:5f9::/48, but retain a higher-AD static fallback through 2001:db8:abcd::2b. Which command describes a floating IPv6 route with AD 250?
An IPv6 static route with AD 250 is less preferred than typical learned routes for the same prefix and can float until they disappear. It targets exactly 2001:db8:5f9::/48.
AD 1 would normally override the learned primary route to 2001:db8:5f9::/48, not serve as a floating backup.
The IPv4 ip route parser does not accept this IPv6 prefix and next hop.
::/0 is an IPv6 default and would alter fallback forwarding for all unmatched destinations, not just 2001:db8:5f9::/48.
At a field-service firm, the site engineer needs an exact IPv6 host route for 2001:db8:b09::37 via an adjacent router on GigabitEthernet0/1. Which command is suitably specific?
A /128 IPv6 route selects exactly host 2001:db8:b09::37 rather than the broader LAN prefix. The specified egress interface and adjacent next hop determine transport.
A /64 prefix covers a full IPv6 LAN rather than only this target host, so it broadens forwarding unnecessarily.
The IPv4 route syntax and netmask cannot configure this IPv6 host address.
An IPv6 default route would capture unmatched traffic globally, not only 2001:db8:b09::37.
At a telecom operations room, an implementation partner is setting a Cisco routed edge to forward unmatched IPv4 traffic to ISP next hop 10.96.68.1. Which global configuration creates the required default route?
This defines an IPv4 default static route /0 to next hop 10.96.68.1. It is used when more-specific installed routes do not match the destination.
255.255.255.255 is not the destination network ID for a /0 default route. The mask and destination are not paired correctly.
The mask 255.255.255.192 does not define /0; it matches only a restricted prefix beginning at 0.0.0.0. A genuine default has a zero mask, matching every otherwise-unrouted IPv4 destination.
This adds a host-specific mask /32 for 0.0.0.0 rather than a true catch-all /0 route.
At a logistics provider, the campus network lead requires a static route to IPv4 network 172.16.46.0/24 through adjacent router 10.125.45.1. Which IOS command configures the intended route?
The static network route uses destination 172.16.46.0 with mask 255.255.255.0 (/24) and next hop 10.125.45.1. The route matches the intended subnet.
This reverses the destination and next-hop positions; 10.125.45.1 is a gateway, not the announced subnet.
A zero mask is a default-length /0 entry, not the specific 24-bit destination route.
A /32 mask would make the route host-specific and omit most of the intended /24 range.
At a manufacturing plant, the campus network lead wants a static IPv4 path for one server 203.0.113.138, not the full /24, through 10.78.203.1. Which command meets this?
A /32 host route matches exactly destination 203.0.113.138 and forwards it to next hop 10.78.203.1. This is the most specific IPv4 static route type.
A default route changes fallback forwarding for all unmatched destinations; 203.0.113.138 was required as a specific target.
A /24 route covers a much larger destination block and does not enforce the single-host requirement for 203.0.113.138.
The destination and next-hop roles are reversed here, incorrectly routing toward 10.78.203.1 as the target host.
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