Networking - Networking Basics

Exercise :: Networking Basics - Networking Basics

  • Networking Basics - Networking Basics
11. 

Which protocol does DHCP use at the Transport layer?

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

Answer: Option C

Explanation:

User Datagram Protocol is a connection network service at the Transport layer, and DHCP uses this connectionless service.

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

Answer: Option C

Explanation:

The show ip interface command will show you if any outbound or inbound interfaces have an access list set.

13. 

Where is a hub specified in the OSI model?

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

Answer: Option B

Explanation:

Hubs regenerate electrical signals, which are specified at the 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.

Answer: Option B

Explanation:

The passive command, short for passive-interface, stops regular updates from being sent out an interface. However, the interface can still receive 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

Answer: Option C

Explanation:

ICMP is the protocol at the Network layer that is used to send messages back to an originating router.