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Share some CCNA SP 640-875 exam questions and answers below.
When two or more different routes exist to the same destination that have been learned from two different routing protocols, what does a router use to determine the best route?
A. routing protocol metric
B. administrative distance
C. hop count
D. path cost
E. local preference
Answer: B
Which two statements about classful or classless routing protocol operations are true? (Choose two.)
A. Classful routing protocols do not send subnet mask information with their routing updates.
B. Variable-length subnet masks are supported when using classful routing protocols.
C. Examples of classless routing protocols include RIPv1, EIGRP, OSPF, and IS-IS.
D. Classful routing protocols do not support discontiguous subnets.
Answer: A,D
Which two statements about transparent bridging operations are true? (Choose two.)
A. A bridge builds its MAC address table dynamically using the spanning-tree protocol.
B. A bridge operates at the data link layer.
C. A bridge sends unknown unicast frames out on all ports except the incoming port.
D. A bridge forwards traffic based on the destination IP address.
E. All the ports on the bridge belong to the same collision domain.
Answer: B,C
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