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Question ID 14415

What are two common TCP applications? (Choose two.)

Option A

TFTP

Option B

SMTP

Option C

SNMP

Option D

 FTP

Option E

DNS

Correct Answer B,D
Explanation Explanation: SMTP uses TCP port 25, while FTP uses TCP ports 20 and 21. Reference: http://pentestlab.wordpress.com/2012/03/05/common-tcpip-ports/


Question ID 14416

Refer to the exhibit.

If the hubs in the graphic were replaced by switches, what would be virtually eliminated?

Option A

broadcast domains

Option B

repeater domains

Option C

 Ethernet collisions

Option D

signal amplification

Option E

Ethernet broadcasts

Correct Answer C
Explanation Explanation: Modern wired networks use a network switch to eliminate collisions. By connecting each device directly to a port on the switch, either each port on a switch becomes its own collision domain (in the case of half duplex links) or the possibility of collisions is eliminated entirely in the case of full duplex links.

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