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At a nonprofit organization, a network operations engineer requires a static route to IPv4 network 172.25.157.0/25 through adjacent router 10.24.42.1. Which IOS command configures the intended route?
The static network route uses destination 172.25.157.0 with mask 255.255.255.128 (/25) and next hop 10.24.42.1. The route matches the intended subnet.
A /32 mask would make the route host-specific and omit most of the intended /25 range.
A zero mask is a default-length /0 entry, not the specific 25-bit destination route.
This reverses the destination and next-hop positions; 10.24.42.1 is a gateway, not the announced subnet.
The routing table contains `S 203.0.113.0/24 via 10.127.126.1`, but a new maintenance route should affect ONLY server 203.0.113.70. Which entry would prove that a more-specific host route is present?
A /32 route contains exactly one IPv4 address; when both /32 and /24 are usable, the router selects the longer prefix for that server.
A /24 has 256 total addresses and cannot express a route unique to 203.0.113.70.
A /16 is broader, not narrower, and would affect far more destinations than the one server.
A /0 matches all destinations at the lowest specificity and cannot override a matching /24 or /32.
A branch advertises a summary 10.80.0.0/16. Its more-specific routes cover only some /24 subnets, and it wants unmatched traffic within the summary discarded locally to prevent a route loop. Which static route provides the discard backstop?
A route for the summary prefix pointing at Null0 can safely discard traffic not covered by a more-specific installed path, provided preference and advertisement are planned correctly.
A global default forwards all unmatched traffic to a next hop, which does not specifically prevent loops within the summarized block.
A /24 route covers only one small part of the /16 summary, leaving the remaining summarized space without the intended backstop.
Forwarding an unknown summarized destination out an ordinary interface does not guarantee a legitimate next hop or prevent a loop; Null0 is an explicit discard path.
At an e-commerce platform, a network administrator needs a static IPv6 route to 2001:db8:52::/48 via IPv6 next hop 2001:db8:52:ffff::1. Which IOS syntax represents this network route?
ipv6 route specifies a static IPv6 destination 2001:db8:52::/48 and IPv6 next hop 2001:db8:52:ffff::1. IPv6 routing must also be enabled appropriately.
0.0.0.0 is an IPv4 address and cannot serve directly as an IPv6 next-hop literal.
The IPv4 ip route parser is not used for an IPv6 prefix and IPv6 next-hop address.
::/0 defines the IPv6 default route and is broader than this single /48 destination.
An IPv6 router needs to reach exactly the peer address 2001:db8:78::7 via point-to-point Serial0/0/0. Which IOS statement configures a single-host static route rather than a LAN prefix?
A /128 IPv6 prefix represents one address. On a point-to-point link the outgoing interface can designate the path to the peer.
This configures a subnet-wide /64 rather than the specified single-host destination.
The ip route command is for IPv4 routes and cannot express an IPv6 prefix.
An IPv6 default route matches any otherwise unmatched destination, exceeding the host-only requirement.
At a public library, the on-call technician needs an exact IPv6 host route for 2001:db8:d6d::5f via an adjacent router on GigabitEthernet0/0. Which command is suitably specific?
A /128 IPv6 route selects exactly host 2001:db8:d6d::5f rather than the broader LAN prefix. The specified egress interface and adjacent next hop determine transport.
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:d6d::5f.
A /64 prefix covers a full IPv6 LAN rather than only this target host, so it broadens forwarding unnecessarily.
A branch currently learns default route `0.0.0.0/0` from OSPF at administrative distance 110. A configured static default should be used ONLY when the OSPF default disappears. Which IOS command provides that fallback through ISP next hop 10.70.119.1?
A static AD of 200 exceeds OSPF's AD 110 for the same /0, creating a floating backup route that can install if the preferred OSPF default vanishes.
AD 1 is preferred over OSPF for the same prefix and would take over immediately instead of serving as a fallback.
AD 0 is even more preferred and cannot provide the requested conditional backup behavior.
The subnet-mask argument for an IPv4 default route is 0.0.0.0; a /24-like mask is not the default prefix.
At a design agency, the branch support lead requires a static route to IPv4 network 172.29.210.0/25 through adjacent router 10.65.193.1. Which IOS command configures the intended route?
The static network route uses destination 172.29.210.0 with mask 255.255.255.128 (/25) and next hop 10.65.193.1. The route matches the intended subnet.
This reverses the destination and next-hop positions; 10.65.193.1 is a gateway, not the announced subnet.
A zero mask is a default-length /0 entry, not the specific 25-bit destination route.
A /32 mask would make the route host-specific and omit most of the intended /25 range.
R1's running configuration contains `ip route 10.70.0.0 255.255.0.0 192.0.2.2`, yet traffic to 10.70.1.1 fails. Which command best checks whether the static prefix actually entered R1's IPv4 routing table?
`show ip route` tests operational route installation, unlike a running-configuration line. Check the actual route and the recursively resolved next-hop state before assuming the static route is usable.
Interface status can explain a failure but does not prove that a specific destination prefix has a forwarding entry.
CDP neighbor discovery does not establish an installed Layer 3 route to the target subnet.
A VLAN database view is not a router's IPv4 route table; it cannot establish the stated static route's eligibility.
At a media studio, an implementation partner uses OSPF (AD 110) as the primary path to 172.18.157.0/24. A static backup via 10.164.201.1 must activate only after OSPF disappears. Which command achieves that?
A floating static route uses higher administrative distance 200 so it stays out of the RIB while the preferred OSPF route (AD 110) is available. It can take over on failure.
AD 0 behaves as an even more preferred route and does not supply a floating backup.
AD 1 makes this static route preferred over OSPF; it would not float behind the learned route.
AD 5 is still lower than OSPF 110, so the static route would normally supersede the primary.
R1 and R2 share an Ethernet subnet and both run OSPFv2 area 0. R1 remains in INIT after receiving R2 Hellos. Which observation most directly explains INIT rather than an area mismatch?
INIT means R1 has seen a Hello from R2 but has not seen its own router ID in the neighbor list; bidirectional communication has not been established.
Priority influences DR election but does not explain why the local router ID is absent from received Hellos.
A loopback host mask is ordinary and is not evidence of missing bidirectional Hello recognition.
Unrelated static route preference does not determine whether R2 lists R1 in its Hello neighbor field.
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