Tuesday, April 23, 2013

Here's a new CCNP SWITCH practice exam to go along with your Video Of The Day!

Let's get right to the questions -- you'll find the answers in this same blog post, followed by the video!

1.  When you implement VLANs, which of the following do you end up with (as opposed to the default VLAN deployment of a Cisco switch)?

A.  More broadcast domains

B.  Fewer broadcast domains

C.  Larger broadcast domains

D.  Smaller broadcast domains

2.    Speaking of defaults, what's the default for each of the following?

A.   Port trunking setting

B.   VLAN that each port will be in

C.   VTP Pruning (off or on)

D.   Uplinkfast  (off or on)

E.   Backbonefast  (off or on)

3.   You see green lights over all ports on your Cisco switch, but when you run show vlan, you don't see all the ports.   What's the next command you should run?

The answers right after this brief, important message!

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And now... the answers!

1. (A, D).   You end up with more broadcast domains, since each VLAN is a broadcast domain.  That sounds like a bad thing, but it's not, since the resulting broadcast domains are smaller - and that helps limit the scope of those broadcasts.

2.  The ports will be in dynamic desirable trunking mode by default, and they'll be in VLAN 1 (the native VLAN).   All three Cisco switch features mentioned -- VTP pruning, Uplinkfast, and Backbonefast -- are all off by default.

3.  If you see green lights on a port and it doesn't show up in show vlan, it's likely trunking.  Run show interface trunk to find out!

See you right here tomorrow with another SWITCH practice exam!  Right now, let's get to the Video Of The Day!

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