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Miscellaneous Questions

March 6th, 2015 in SWITCH 300-115 Go to comments

Question 1

Explanation

Nonstop Forwarding (NSF) works with Stateful switchover (SSO) to minimize the amount of time a network is unavailable to its users following a switchover. The main objective of Cisco NSF is to continue forwarding IP packets following a route processor (RP) switchover.

Usually, when a networking device restarts, all routing peers of that device detect that the device went down and then came back up. This transition results in what is called a routing flap, which could spread across multiple routing domains. Routing flaps caused by routing restarts create routing instabilities, which are detrimental to the overall network performance. Cisco NSF helps to suppress routing flaps in SSO-enabled devices, thus reducing network instability.

Cisco NSF allows for the forwarding of data packets to continue along known routes while the routing protocol information is being restored following a switchover. With Cisco NSF, peer networking devices do not experience routing flaps. Data traffic is forwarded through intelligent line cards while the standby RP assumes control from the failed active RP during a switchover. The ability of line cards to remain up through a switchover and to be kept current with the Forwarding Information Base (FIB) on the active RP is key to Cisco NSF operation.

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SY/configuration/guide/sy_swcg/nonstop_forwarding.html#wp1102552

Question 2

Explanation

VSLs can be configured with up to eight links between the two switches across any combination of line cards or supervisor ports to provide a high level of redundancy. If for some rare reason all Virtual Switching Link (VSL) connections are lost between the virtual switch members leaving both the virtual switch members up, the VSS will transition to the dual active recovery mode.

In the dual active recovery mode, all interfaces except the VSL interfaces are in an operationally shut down state in the formerly active virtual switch member. The new active virtual switch continues to forward traffic on all links.

Reference: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-virtual-switching-system-1440/prod_qas0900aecd806ed74b.html

Question 3

Explanation

If for some rare reason all Virtual Switching Link (VSL) connections are lost between the virtual switch members leaving both the virtual switch members up, the VSS will transition to the dual active recovery mode.

In the dual active recovery mode, all interfaces except the VSL interfaces are in an operationally shut down state in the formerly active virtual switch member. The new active virtual switch continues to forward traffic on all links.

Reference: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-virtual-switching-system-1440/prod_qas0900aecd806ed74b.html

Question 4

Explanation

VSS increases operational efficiency by simplifying the network, reducing switch management overhead by at least 50 percent. This includes removing the need for Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and Gateway Load Balancing Protocol (GLBP) -> D is correct.

Reference: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-virtual-switching-system-1440/prod_qas0900aecd806ed74b.html

Question 5

Question 6

Explanation

If a BPDU is received on a port where BPDU guard is configured, that port is put into errdisable state (nearly the same as shutdown state) immediately. BPDU Guard is often configured on a PortFast-enabled port to prevent a switch from connecting to. When that switch begins to send BPDU to a BPDU guard port, it will be blocked immediately.

Question 7

Explanation

IP Source Guard provides source IP address filtering on a Layer 2 port to prevent a malicious host from impersonating a legitimate host by assuming the legitimate host’s IP address. The feature uses dynamic DHCP snooping and static IP source binding to match IP addresses to hosts on untrusted Layer 2 access ports.

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/ipsrcgrd.html

Comments
  1. Juan
    April 16th, 2015

    Come on “Hi” and “Anonymous”…if people were dumb enough to go to the links you provided instead of using the info on this website, they shouldn’t be getting certified at all. Stop wasting space on this site with SPAM.

  2. APP
    May 4th, 2015

    Where can i download the cbtnuggets video for free?

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  3. Pieter
    May 14th, 2015

    So teh “miscellaneous questions” are basically all about the 6500?

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  4. ALEX
    June 1st, 2015

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  5. Wally
    June 20th, 2015

    Very interesting links on the 6500 and VSS.

  6. joe
    August 6th, 2015

    great link for VSS , not seen that mentioned in CBT nuggets – come on Jeremy!

  7. macwein
    August 6th, 2015

    All questions from certprepare with complete Explanation in doc file made by me
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    As the site did not publish questions any more
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  8. AK
    August 23rd, 2015

    @macwein

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  9. certprepare
    August 29th, 2015

    Because of copyrighted issues, certprepare had to remove all questions and answers. You can download them at http://www.mediafire.com/view/9mq20kx0mgam6k7/SWITCH_July_2015.pdf

  10. Anonymous
    September 1st, 2015

    Cert Prepare—

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  11. Valon
    September 24th, 2015

    Passed the test today , had 36 questions and two LABs – one to configure AAA and the other one Etherchannel , really easy.Everything you need to pass the test is right here in this website.good luck

  12. $!L@
    October 8th, 2015

    thanks Valon for the insight…

  13. brgferreira
    October 8th, 2015

    the questions are still valid, I can’t see them as a guest. i need to request a premium member?

  14. Anonymous
    October 9th, 2015

    Where to sign up premium membership

  15. juan
    October 15th, 2015

    Hi, on the quizzes the question “which statement describess what happens when a switch enters dual active recovery mode? if I choose the answer “all interfaces are shutdown … Apears wrong, why?

  16. Anonymous
    November 3rd, 2015

    Hallo all ,

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  17. MOE
    November 21st, 2015

    Where can I find questions? In page there are only answers.

  18. questions
    December 28th, 2015

    Hello all ,

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  19. switch
    January 17th, 2016

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    January 19th, 2016

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  21. examtips
    January 30th, 2016

    tricky question on vlan. if we delete a vlan to which an interface was asigned. what happens to this interface
    a) They remain up, but they are reassigned to the default VLAN
    b) They go down until they are reassigned to a VLAN
    c)They go down, but they are reassimged to the native VLAN
    d)They remain up, but they are reassigned to the native VLAN

    so far none of these answers is true. I simulate this on my 3550, the interface stays up and still assigns to the vlan even i run delete flash:vlav.dat followed by reload.

    The only time, I see the interface goes back to vlan 1 if I run no swithport access vlan #.

    So, why do we have this type of silly questions on the exam?

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    February 2nd, 2016

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    February 18th, 2016

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    February 19th, 2016

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  28. cheemz
    February 20th, 2016

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    thanks again ^_^

  29. Jane
    March 22nd, 2016

    could somebody send me the dumps 191q please. It will be a big help. I do request. Thanks in advance. my email address

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    April 6th, 2016

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    May 7th, 2016

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    May 7th, 2016

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  33. Veritrini
    May 26th, 2016

    QUESTION #2:

    VSS is setup ACTIVE-Standby.
    No Dual-Active detection is setup.
    VSL links are unplugged

    Wouldnt the BOTH switches go into an active state? Wasnt this why dual-active detection was implemented? How is the correct answer D?

  34. Utih
    May 26th, 2016

    Passed today,
    Thanks certprepare for the detailed explanations.
    For the questions I used dumps from http://www.itlibraries.com/product/300-115/ – all questions were from this dumps

    Cheers

  35. Anonymous
    June 21st, 2016

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    June 21st, 2016

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    June 30th, 2016

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    July 12th, 2016

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    July 18th, 2016

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  40. Mat
    September 17th, 2016

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    191Q dump is still valid.
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  41. Shaheen
    November 17th, 2016

    http://www.testmayor.com/300-115-test.html dumps is Valid. I took the test on Weds. 95% questions were from the Testmayor dumps. All questions and answers are valid, You’d better have to understand the technologies.

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    December 13th, 2016

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  43. Jake
    December 27th, 2016

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  44. Regina
    January 11th, 2017

    Passed my Switch Exam! 191Q is valid. I’m pretty sure information on this site is helpful but I used study materials from this ebay seller I came across on my CCNA/CCNP Route cert prep journey. He tends to have the latest updates for all the exams he provides. He seems to not have the TShoot Cert Prep but will see if he has that lol. Onto completing my CCNP Certification!

    Information to the exam:

    37 Multiple Choice Questions
    OSPF TShoot Simlet
    LACP-STP Simulation
    AAAdot1x Simulation

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  45. Sessum
    January 18th, 2017

    Ebay dump is valid per “Regina”

  46. the test is crap
    January 22nd, 2017

    when I got to the AAA lab –

    DSW(config)#vlan access-map NAME 10
    DSW(config-vlan-map)#match ip address 10 **** THIS DAMN THING DID NOT WORK FOR ME! ****
    DSW(config-vlan-map)#action forward
    DSW(config-vlan-map)#exit
    DSW(config)#vlan access-map NAME 20
    DSW(config-vlan-map)#action drop
    DSW(config-vlan-map)#exit

    Has anyone else ran across issues with the sims on the Cisco Exams ?

    I am irritated by this recent issue – the sad thing – Pearson VUE does not respond.

    You complain and they just tell you sorry – we will escalate and get back with you – When ?

    Next year or after you have already paid it on your credit card – I think the system is flawed…

    Be VERY Careful with SIMS – You miss they take a TON Of points – 1 Sim messed up and I failed by 10 points.

    just because of the statement shown above!

  47. mick
    January 22nd, 2017

    For all of u studying braindumps jumping up and down that you passed – Well I Hope you know the stuff on the job –
    I hope it is not just a cert by your name .

    I see to many people with Certs and don’t knwo how to apply the knowledge –

    Again, you talk with an employer and get hired – then you show you cannot perform – It’s people like me that fire you on day – 2.

    I have so many people that come through the door – CCNA/Security… CCNP… and then can’t even perform a basic show vtp status or even know what an etherchannel is withough giving that dumb founding oh..crap look on their face – then I just fire you right on the spot – no second chance…

    271 people fired since 2011 – that is sad!

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