Ethernet

Question 1

Which of the following provides swappable interface for a fiber optic cable?
SFP
ST
SC
LC

Answer 1

SFP. SFP is the swappable interface module while ST, SC, LC are fiber connector types.

Question 2

SW1 and SW2 are interconnected.  Which set of commands will enable an Open-Standard EtherChannel between two switches?
A. Desirable/Auto
B. Passive/Passive
C. Passive/Active
D. Desirable/Active

Answer 2

Passive/Active. Because we are looking for the “Open Standard” this can’t be PAcP which is Cisco proprietary which is Desirable/Auto. It must be LACP which is open to all vendors and is Passive/Active.

Question 3

All ports on a switch, including the system LED, turn amber and stay like this for 10 mins. What is the main reason?

Answer 3

Failed POST

Question 4

What does the Aging Time define on the following command?

show mac address-table aging-time

Answer 4

How long a dynamic MAC address will remain in the MAC table.

Question 5

A workstation is powered on and connected to a Cisco switch. The switch port LED does not turn amber or green. All other port switches are blinking green.
What is the most likely to resolve the issue?

Answer 5

Reseat the network cable.