Why is it recommended to use Spanning Tree Protocol (STP) in Local Area Networks (LANs) with redundant paths?

Which Cisco IOS command can be used to troubleshoot switch startup problems on a Cisco Catalyst 2950 switch?

You have connected two routers in a lab using a Data Terminal Equipment (DTE)-to-Data Circuit-terminating Equipment (DCE) cable.
Which command must be issued on the DCE end for the connection to function?

Which is the shortest possible notation of the following Internet Protocol version 6 (IPv6) address?
2001:0DB8:0000:0001:0000:0000:0000:F00D

DRAG DROP
Click and drag the OSI layer, on the left, to the commands at which they test functionality. If a command can test more than one layer, choose the highest layer for
which it can test. (It may be necessary to use an OSI layer multiple times.)
Select and Place:

A device has an address of 192.168.144.21 and a mask of 255.255.255.240.
What will be the broadcast address for the subnet to which this device is attached?

Which statement is TRUE of the CSMA/CD Ethernet media access method?

How is the designated router (DR) determined by OSPF on a multi-access network segment?

Refer to the following partial output of the show interfaces command:

What are the two troubleshooting steps that you should perform to resolve the problem depicted in the output? (Choose two.)

Which of the following commands will enable a global IPv6 address based on the Modified EUI-64 format interface ID?