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VRRP Questions

August 31st, 2017 in SWITCH 300-115 Go to comments

Question 1

Explanation

Unlike HSRP or GLBP, VRPP is an open standard.

Question 2

Explanation

In VRRP, the active router is referred to as the master virtual router.

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Explanation

VRRP has three authentication schemes:
+ No authentication
+ Plain text authentication
+ MD5 authentication

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/12-4/fhp-12-4-book/fhp-vrrp.html

Question 9

Question 10

Question 11

Question 12

Explanation

To minimize network traffic, only the Master for each virtual router sends periodic VRRP Advertisement messages. A Backup router will not attempt to preempt the Master unless it has higher priority. This eliminates service disruption unless a more preferred path becomes
available.

Reference: https://tools.ietf.org/html/rfc3768

Question 13

Comments
  1. CCNP life
    August 15th, 2017

    Can someone please explain Question 3 ?

  2. cl
    August 30th, 2017

    question 3 makes no sense. The answer seems odd also

  3. BoZZ
    August 30th, 2017

    Q3 – VRRP can have multiple groups per vlan (1-255). VLAN number and VRRP Group number DOES NOT need to match.

  4. ntwkninja
    August 31st, 2017

    @BoZZ Can you explain a little more? The correct answer is the selection where the VLAN number and VRRP group number match.

  5. Lucky
    September 3rd, 2017

    Q3 – VRRP default priority is 100. Hence, between answers A and B, A is correct because there is no need to manually configure priority to 100 as shown in answer B.

  6. Hank
    October 9th, 2017

    For Q5: where is the entire diagram for premium, members?
    The answer says PC 1 and 3…but I do not see whole diagram.

  7. Mark
    October 10th, 2017

    @Hank
    Diagram missing, just trust it :)

  8. Rizwan
    October 11th, 2017

    where is the diagram for Q7?

  9. xjuankx
    October 12th, 2017

    Premiuns no found diagram… =(

  10. xjuankx
    October 12th, 2017

    Q3 –> vrrp Priority default 100 ( Vlan is not a bug the vlan may be different )

  11. Keu
    October 16th, 2017

    Cleared my exam, 9xx , first try
    Study the labs here and the dumps from IT-Libraries (dumps have the lab but only the explanations)

  12. Al
    November 3rd, 2017

    Hi,

    Regarding Q 9. why D not A?

    Authentication commands must be entered under the interface. can you enter it somewhere else?

    Would inserting the same ip address on both interfaces involved in the vrrp election and Virtual ip interface work?!

    Thanks.

  13. mills
    November 7th, 2017

    Hello AI,

    With VRRP, the VIP and an interface on the L3 switch or router can share/have the same ip address. The authentication command is entered under the interface in VRRP, same for HSRP and GLBP.

    I feel D and E are both correct because they are features unique to VRRP.

  14. coffee maker usage
    December 17th, 2017
  15. mr coffee coffeemaker zh series
    December 17th, 2017

    Absolutely written subject material, thanks for selective information. “The earth was made round so we would not see too far down the road.” by Karen Blixen.

    http://www.electricpercolatorcoffeepot.com/opening-your-own-coffee-shop/

  16. CCNP
    March 5th, 2018

    question 10 and 11 are missing in questions.

  17. pattap
    March 28th, 2018

    Q3 is so vague!!

    The below is from cisco website:

    Configuring VRRP Priority
    The valid priority range for a virtual router is from 1 to 254 (1 is the lowest priority and 254 is the highest).
    The default priority value for backups is 100. For devices whose interface IP address is the same as the primary virtual IP address (the master), the default value is 255.

    C. So according to the above,IP address of the int van 1 is the same as the primary virtual IP of vrrp group 1 making it the master of the party

    B. addresses are different making it backup, default is 100 – cisco doesn’t like us to repeat default config?

    A. again this is back up, default is 100 but we are trying to achieve some shenanigans here
    and decided to have it as 200

    I would probably go for A but each of the examples is valid, cisco really needs to stop this kind of questions, this is not even about knowing stuff but trying to figure what the hell they want

  18. pattap
    March 28th, 2018

    Q4

    A. VRRP uses multicast address 224.0.0.18
    C. VRRP uses protocol identifier 112

    no need to explain this one

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