Test your knowledge of ARP, Proxy ARP, administrative distance, and other vital Cisco exam topics with these free questions!
CCNA And CCENT Certification Exam:
Host A wants to send data to Host B. Host A knows Host B's IP address, but not its MAC address. There are two switches and a hub between the two hosts. What protocol will allow Host A to transmit data successfully to Host B?
B. Inverse ARP
D. Proxy ARP
Answer: A. ARP can work successfully in this situation, since there are no routers in the path between Host A and Host B. ARP broadcasts will successfully be forwarded by the switches.
CCNP Certification / BSCI Exam:
Given the following routing table excerpt, what local interface will traffic destined for 18.104.22.168 use to exit the router?
R 22.214.171.124 /24 [120/2] via ethernet0
I 126.96.36.199 /23 [100/4253] via ethernet1
R 188.8.131.52 /24 [120/2] via serial0
O 184.108.40.206 /23 [110/20]via serial1
Answer: The load will be shared over the two RIP paths. They have the longest prefix for the route (/24), and since the metrics are equal, they will equal-cost load-share over the two paths. Hopefully you'll only see a routing table like that on an exam or here in a practice question!
CCNP Certification / BCMSN Exam:
Short answer: You want to connect a router's AUI port to a switch port. What kind of cable will you need?
Answer: You'll need a straight through cable as well as a transceiver.
CCNP Certification / ISCW Exam:
Short answer: Packet filtering can use information from what OSI model layer headers to permit or deny traffic?
Answers: Packet filtering can match against both L3 and L4 criteria.
CCNP Certification / ONT Exam:
Cisco routers support three types of digital phone ports. Name them.
Answer: Our old friend ISDN, along with Common Channel Signaling (CCS) and Channel Associated Signaling (CAS).
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