Networking Basics

11. Which protocol does DHCP use at the Transport layer?

A. IP
B. TCP
C. UDP
D. ARP

Correct Answer: C. UDP

12. Which command is used to determine if an IP access list is enabled on a particular interface?
A.show access-lists
B.show interface
C.show ip interface
D.show interface access-lists

Correct Answer: C.show ip interface

13. Where is a hub specified in the OSI model?

A. Session layer
B. Physical layer
C. Data Link layer
D. Application layer

Correct Answer: B. Physical layer

14. What does the passive command provide to dynamic routing protocols?

A. Stops an interface from sending or receiving periodic dynamic updates.
B. Stops an interface from sending periodic dynamic updates but not from receiving updates.
C. Stops the router from receiving any dynamic updates.
D. Stops the router from sending any dynamic updates.

Correct Answer: B. Stops an interface from sending periodic dynamic updates but not from receiving updates.

15. Which protocol is used to send a destination network unknown message back to originating hosts?

A. TCP
B. ARP
C. ICMP
D. BootP

Correct Answer: C. ICMP

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