CCNA 200 301 OSPF EXAMPREP TESTED
QUESTIONS WITH ACCURATE RESPONSES
PREMIUM LEARNING PACKAGE
●● OSPFv2
Answer: The IPv4 version of OSPF; this is the main OSPF version used
for CCNA single-area OSPF configuration.
●● OSPFv3
Answer: The IPv6-capable version of OSPF; know the concept, but
CCNA OSPF focus is mostly OSPFv2.
●● IGP
Answer: Interior Gateway Protocol; a routing protocol used inside one
organization or autonomous system, such as OSPF, EIGRP, or RIP.
●● Link-state routing protocol
Answer: A routing protocol where routers build a topology database of
the network and calculate best paths from that database.
●● OSPF algorithm
Answer: OSPF uses Dijkstra's Shortest Path First algorithm to calculate
the best path to each destination.
,●● SPF
Answer: Shortest Path First; the algorithm OSPF uses to calculate loop-
free best paths.
●● OSPF metric
Answer: OSPF uses cost as its metric.
●● OSPF best path
Answer: The route with the lowest total OSPF cost to the destination.
●● OSPF administrative distance
Answer: 110 by default on Cisco routers.
●● OSPF process ID
Answer: A locally significant number used to identify the OSPF process
on a router; it does not need to match between neighbors.
●● router ospf 1
Answer: Command that starts OSPF process 1 and enters OSPF router
configuration mode.
●● Locally significant process ID
, Answer: The OSPF process ID only matters on the local router and does
not have to match neighboring routers.
●● OSPF area
Answer: A logical grouping of OSPF routers and links that share the
same link-state database.
●● Area 0
Answer: The backbone area in OSPF; in single-area CCNA labs, all
OSPF interfaces are commonly placed in area 0.
●● Single-area OSPF
Answer: An OSPF design where all routers are placed in one area,
usually area 0.
●● Backbone area
Answer: Area 0; the central OSPF area that all other areas must connect
to in multi-area OSPF.
●● Multi-area OSPF
Answer: An OSPF design using multiple areas; CCNA mostly requires
recognizing the concept, not deep configuration.
●● ABR
QUESTIONS WITH ACCURATE RESPONSES
PREMIUM LEARNING PACKAGE
●● OSPFv2
Answer: The IPv4 version of OSPF; this is the main OSPF version used
for CCNA single-area OSPF configuration.
●● OSPFv3
Answer: The IPv6-capable version of OSPF; know the concept, but
CCNA OSPF focus is mostly OSPFv2.
●● IGP
Answer: Interior Gateway Protocol; a routing protocol used inside one
organization or autonomous system, such as OSPF, EIGRP, or RIP.
●● Link-state routing protocol
Answer: A routing protocol where routers build a topology database of
the network and calculate best paths from that database.
●● OSPF algorithm
Answer: OSPF uses Dijkstra's Shortest Path First algorithm to calculate
the best path to each destination.
,●● SPF
Answer: Shortest Path First; the algorithm OSPF uses to calculate loop-
free best paths.
●● OSPF metric
Answer: OSPF uses cost as its metric.
●● OSPF best path
Answer: The route with the lowest total OSPF cost to the destination.
●● OSPF administrative distance
Answer: 110 by default on Cisco routers.
●● OSPF process ID
Answer: A locally significant number used to identify the OSPF process
on a router; it does not need to match between neighbors.
●● router ospf 1
Answer: Command that starts OSPF process 1 and enters OSPF router
configuration mode.
●● Locally significant process ID
, Answer: The OSPF process ID only matters on the local router and does
not have to match neighboring routers.
●● OSPF area
Answer: A logical grouping of OSPF routers and links that share the
same link-state database.
●● Area 0
Answer: The backbone area in OSPF; in single-area CCNA labs, all
OSPF interfaces are commonly placed in area 0.
●● Single-area OSPF
Answer: An OSPF design where all routers are placed in one area,
usually area 0.
●● Backbone area
Answer: Area 0; the central OSPF area that all other areas must connect
to in multi-area OSPF.
●● Multi-area OSPF
Answer: An OSPF design using multiple areas; CCNA mostly requires
recognizing the concept, not deep configuration.
●● ABR
