Tuesday, April 30, 2013




What do you call a Bulldog that's been locked out of his own Blogger account for the past few days?

Me. :)

Apologies on the lack of practice exam and video posts the last few days -- be back Wednesday with brand-new exams throughout the day!





Friday, April 26, 2013





New CCNA practice exam questions and some great videos -- a combination that can't be beaten!

I also have a bonus link for you to a fully-illustrated CCNA tutorial that involves one of today's questions!

Let's jump right in!



1.  Which of the following routing protocols are enabled at the interface level, rather than globally?

A.  RIP v 1

B.  RIP v 2

C.  RIP ng

D.  OSPF v3




2.    Which of the following describes both RIPv2 and EIGRP?


A.  Supports VLSM

B.  Allows manual route summarization 

C.  In certain situations, performs automatic route summarization

D.  Uses DUAL

E.  Uses Dijkstra algorithm





3.   Short answer:  What command resulted in the following partial output, and what issue does this line indicate?

08:01:54: RIP: ignored v2 packet from 172.12.23.2 (illegal version)


The answers right after this brief, important message!



I guarantee you'll beat the Sept. 2013 CCNA and CCENT exam version changeover with my $44 Video Boot Camp....


.... and if you don't get your CCNA for ANY reason before September, you get my all-new 200-120 CCNA Video Boot Camp absolutely FREE!

Over 3400 future and present CCNAs are already in the class.   Join us right now and let's get started on your CCNA!






And now... the answers!


1. (C, D).  Both RIPng and OSPFv3 are IP Version 6 protocols, and those protocols are enabled at the interface level.


2.  (A, B, C).   Both RIPv2 and EIGRP support VLSM, allow manual route summarization, and will perform automatic route summarization under certain circumstances.  That's why we often use the no auto-summary command -- to stop that autosummarization, which can cause network issues.

Only EIGRP uses DUAL, and the Dijkstra algorithm is used by OSPF.



3.  That command is (very) partial output from debug ip rip, and that line indicates a RIP version mismatch.

Follow this link for a quick, fully-illustrated tutorial on that subject:

CCNA CCENT Tutorial: RIP Version Mismatches


Thanks for tackling today's new CCNA practice exam - let's get to today's Videos Of The Day!

























Time for three brand-new CCNP SWITCH practice exam questions, along with a great video!

These questions are also excellent study material for the CCNA Security certification.

Let's jump right in!


1.  You're configuring Dynamic ARP Inspection.   First, you need to know when ARP messages are inspected. So... when are they inspected?

A.  As they arrive at the switch

B.  As they leave the switch

C.  As they arrive at and leave the switch, but this can be changed

D.  Both as they arrive at and leave the switch, and this is the unchangeable default behavior




2.    By default, which of the following actions will be taken when an ARP message is considered invalid?

A.   None - by default, ports are trusted in DAI.

B.   The event is logged.

C.   The invalid request or response is dropped.

D.   The port is placed into err-disabled mode.

E.   The port is placed into arp-inconsistent mode.



3.   Dynamic ARP Inspection uses a database created by what other service or protocol?

That one's short answer.  : ) 


The answers right after this brief, important message!



Over 12,000 future and present CCNAs and CCNPs are in my Video Boot Camps on Udemy.

It's time for you to join us - and you can start my CCNP SWITCH course in minutes for just $44, and my CCNA Security course is only $39!


Join us today - click this banner or the link, and let's get started on your CCNP SWITCH and CCNA Security passes!









And now... the answers!


1. (A).  Dynamic ARP Inspection only examines ARP messages as they arrive ("ingress ports").   



2.  (B, C).   Invalid ARP messages will be dropped and logged.   DAI ports are considered untrusted by default.  



3.  Dynamic ARP Inspection uses the DHCP Snooping database (so DHCP Snooping has to be running in order to use DAI).


Since today's questions are on DAI, let's watch a video on the same subject!  See you Friday with more new questions and videos!

















Thursday, April 25, 2013






Here's another brand-new set of CCNP ROUTE practice exam questions, along with your ROUTE Video Of The Day!



Be sure to scroll down in the blog for more CCNP ROUTE, SWITCH, and TSHOOT practice exam questions, and thanks for dropping by today!



--  Chris B.



1.  Which of the following protocols require a seed metric to be specified when redistributing routes into them?


A.   RIP version 1


B.   RIP version 2


C.   EIGRP


D.   OSPF




2.    Each of the following BGP values can be used in the BGP best-path selection process.   For each value, is the preferred value higher or lower?


A.   weight

B.   local preference

C.   AS Path  ( longer / shorter )

D.   MED






3.   Name the three BGP well-known mandatory attributes.

Sorry, no choices with this one!




The answers right after this brief, important message!



Over 12,000 future and present CCNAs and CCNPs are in my Video Boot Camps on Udemy right now.

It's time for you to join us - and you can start my CCNP ROUTE course in minutes for just $44!

(That's not a monthly charge.  That's period.)

My CCNP All-In-One course covers all three exams with over 52 hours of my world-class instruction.. and it's just $99.

Join us today - click this banner or the link, and let's get started on your CCNP ROUTE pass!









And now... the answers!


1. (A,B,C).   You'll need to specify a seed metric for any routes redistributed into EIGRP or either version of RIP.  OSPF has a default seed metric of 20.



2. Going down the list:

Weight:  Higher weight is preferred over lower.

Local pref:  Higher is preferred over lower.

AS Path:  Shorter is preferred over longer.

MED:  Lower is preferred over higher.



3.  The BGP mandatory, well-known attributes are origin, next-hop, and AS_Path.

Want more CCNP ROUTE practice exam questions?  Just click that link for other blog posts with ROUTE questions...

... and here's your CCNP ROUTE Video Of The Day!  Thanks for watching!
















Wednesday, April 24, 2013





Time for your CCNA and CCENT Videos Of The Day -- plus a new set of practice exam questions!

Let's get right to it!  The videos follow the questions and answers!


1.  During the Cisco router boot process, the router will look for a valid IOS image.   There are three sources from which the router can load such an image; what are they, and what is the order in which they'll be checked for that image?

A.  Flash

B.  TFTP Server

C.  RAM

D.  NVRAM

E.  ROM

F.  Configuration Register




2.    Once that IOS is found, the router will look for a valid startup configuration file.   There are two places the router will look before prompting you to enter setup mode.  What are those two places, and what's the order in which they'll be checked?


A.  Flash

B.  FTP Server

C.  TFTP Server

D.  ROM

E.   RAM

F.   NVRAM





3.   Once you enter Setup Mode, you may well want to get out of it without saving your changes.   How can you do that?


A.  You can't.


B.  ctrl-shift-6 


C.  ctrl-c



D.  ctrl-alt-del


E.   ctrl-x


The answers right after this brief, important message!



I guarantee you'll beat the Sept. 2013 CCNA and CCENT exam version changeover with my $44 Video Boot Camp....


.... and if you don't get your CCNA for ANY reason before September, you get my all-new 200-120 CCNA Video Boot Camp absolutely FREE!

Over 3400 future and present CCNAs are already in the class.   Join us right now and let's get started on your CCNA!








And now... the answers!


1. (A, B, E).  The default location is Flash; if there's no valid image there, the router checks for a TFTP server from which to download the file; finally, the router looks to Read-Only Memory (ROM).


2.  (F, C).  The Cisco router will first look to its NVRAM (Non-Volatile RAM) for the startup config file; if there isn't one there, the router will look for a TFTP server.   After that, you'll be prompted to enter Setup Mode.



3.  (C).  The keystroke to escape Setup Mode without saving your changes is ctrl-c.  The introductory dialogue for Setup Mode mentions this, but it's really easy to miss.


Thanks for taking today's CCNA and CCENT practice exam!  See you here on the blog tomorrow with more questions, and on YouTube and Udemy for hours of free videos!


And speaking of videos, here's your CCNA and CCENT Videos Of The Day from my YouTube channel!   Enjoy!



















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!



Over 12,000 future and present CCNAs and CCNPs are in my Video Boot Camps on Udemy right now.

It's time for you to join us - and you can start my CCNP SWITCH course in minutes for just $44!

My CCNP All-In-One course covers all three exams with over 52 hours of my world-class instruction.. and it's just $99.

Join us today - click this banner or the link, and let's get started on your CCNP SWITCH pass!










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!






















Time for a brand-new CCNP ROUTE practice exam to go along with your CCNP ROUTE 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 Of The Day!


1.  You're working with EIGRP in a hub and spoke network, and you notice that routes being advertised by the spokes are showing up as summarized networks on the hub.   

You know you can use the "no auto-summary" command to resolve the issue -- but you also know your boss likes you to configure the least number of routers possible.   

Which of the following describes where you need to use this command?

A.  On the hub only, since that's the router with the summarized routes.

B.  On the spokes only.

C.  You need this command on both the hub and the spokes.

D.  You don't have to configure the command anywhere - it's the default setting for EIGRP.   It's likely this is a summarization issue rather than a configuration issue.




2.    You're configuring an OSPF NBMA network.  Which of the following defaults should you change?


A.  The OSPF interface priority on the hub router.

B.   The OSPF interface priority on the spoke router.

C.   The OSPF cost on the hub router interfaces.

D.   The OSPF cost on the spoke router interfaces.






3.   In the following OSPF config, what will the RID of this particular router be?


interface loopback 100
     ip address 100.1.1.1 255.255.255.0

interface loopback101  

    ip address 101.1.1.1 255.255.255.0

interface loopback102

   ip address 102.1.1.1 255.255.255.0


int serial 0

    ip address 172.12.13.1 255.255.255.0
    ip ospf priority 0


router ospf 1

   network 100.1.1.0 0.0.0.255 area 100
   network 101.1.1.0 0.0.0.255 area 101
   network 172.12.13.0 0.0.0.255 area 0


The answers right after this brief, important message!



Over 12,000 future and present CCNAs and CCNPs are in my Video Boot Camps on Udemy right now.

It's time for you to join us - and you can start my CCNP ROUTE course in minutes for just $44!

(That's not a monthly charge.  That's period.)

My CCNP All-In-One course covers all three exams with over 52 hours of my world-class instruction.. and it's just $99.

Join us today - click this banner or the link, and let's get started on your CCNP ROUTE pass!









And now... the answers!


1. (B).   While you'll usually put the no auto-summary command on all your routers in a RIPv2 or EIGRP network,  in this case the only place you have to put the command is on the routers performing the autosummarization -- in this case, the spokes.



2.  (B).  We want to prevent the spoke routers from participating in the DR / BDR election in an NBMA network, so we'll go to the spoke routers and change the default OSPF interface priority from one to zero with the interface-level ip ospf priority 0 command.



3.  The RID will be 102.1.1.1.   If you have loopback interfaces on your router, the highest IP address assigned to a loopback will be the OSPF RID -- even if that particular interface is NOT enabled with OSPF.

I don't all-cap a word often, but it's really easy to miss that one.  Remember -- an interface does not have to be OSPF-enabled in order to have its IP address used as the OSPF RID.


Thanks for taking today's practice exam!  See you here on the blog tomorrow with more questions, and on YouTube and Udemy for hours of free videos!


And speaking of videos, here's your CCNP ROUTE Video Of The Day!  Thanks for watching!
















Friday, April 19, 2013





Something new today...


... two new CCNA and CCENT Video Boot Camps! 


A new series of 3:00 CCNP Video Boot Camps starts up Monday... right now, let's get to the new CCNA and CCENT videos!










See you on YouTube and Udemy!

Join me and over 8700 other Bulldogs on YouTube for daily free CCNA, CCNP, and CCNA Security videos....




... and over 11,000 students in my Video Boot Camps on Udemy, including my CCNA $44 Video Boot Camp -- guaranteed to get you certified before Sept. 30 or you get the new 200-120 videos free!








Thursday, April 18, 2013





Here are your CCNA and CCENT practice exam links for Thursday, April 18!

Over 40 free practice exam questions -- just a click away!









Be sure to scroll down in the blog for even more free practice exam questions and videos! 

Let's hit the fundamentals of both routing and switching with today's practice exams!











See you on YouTube and Udemy!

Join me and over 8600 other Bulldogs on YouTube for daily free CCNA, CCNP, and CCNA Security videos....




... and over 11,000 students in my Video Boot Camps on Udemy, including my CCNA $44 Video Boot Camp -- guaranteed to get you certified before Sept. 30 or you get the new videos free!



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