CCNA Discovery 1 Chapter 6 V4.0 Answers
DHomesb Chapter 6 – CCNA Discovery: Networking for Home and Small Businesses (Version 4.0)
1. Which port number is used by SMTP?
20
21
25
26
110
2. What three items are contained in an Ethernet header and trailer? (Choose three.)
source IP address
source MAC address
destination IP address
destination MAC address
error-checking information
