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Cisco Certs > FHRP > Flashcards

FHRP Flashcards

1
Q

3 major FHRP protocols

A
  1. HSRP2. VRRP3. GLBP
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2
Q

What does GLBP stand for?

A

Gateway Load Balancing Protocol

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3
Q

What does FHRP stand for?

A

First Hop Redundancy Protocol

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4
Q

What does VRRP stand for?

A

Virtual Router Redundancy Protocol

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5
Q

What does HSRP stand for?

A

Hot Standby Router Protocol

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6
Q

How does HSRP implement loadbalancing?

A

By allowing different routers be the active router for different subnets.

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7
Q

What’s the biggest difference between GLBP and HSRP/VRRP?

A

GLBP uses an active/active model, so traffic can be distributed between multiple routers even if the hosts are in the same subnets.

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8
Q

What function does the AVG perform?

A

In GLBP, the AVG replies to all ARP requests for the virtual IP address. It will LB the responses so that the hosts end up balanced between all the routers in the group.

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9
Q

What does AVG stand for?

A

Active Virtual Gateway

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10
Q

How does the AVG direct hosts to utilize different routers as their gateways?

A

By providing the MAC addresses of different routers in the LB group for the virtual IP address.

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11
Q

HSRP syntax to set up the VIP for a LB group

A

conf tinterface gi1/0standby group # ip VIP

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12
Q

5 basic HSRP attributes that can be configured under an interface

A
  1. VIP2. Group name3. Priority4. Version5. Preempt
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13
Q

HSRP syntax to set priority for a LB group

A

conf tinterface gi1/0standby group # priority priority value

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14
Q

For HSRP, what is the default priority?

A

100

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15
Q

For HSRP, what is the priority range?

A

1 - 255

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16
Q

For HSRP, is a higher or lower priority better?

A

Higher

17
Q

HSRP syntax to return an interface to active state after it comes back up

A

conf tinterface gi1/0standby group # preempt

18
Q

2 commands to show detailed HSRP status

A

show standbyshow standby brief

19
Q

GLBP syntax to configure the virtual IP

A

glbp group # ip vip

20
Q

GLBP syntax to configure the name of the LB group

A

glbp group # name name

21
Q

How does GLBP’s priority system differ from that of HSRP?

A

It doesn’t. Same defaults and priority range, along with the fact that higher priority is better.

22
Q

How does a router become a GLBP AVG?

A

It has the higher priority and either comes online first, or has preemption enabled.

23
Q

2 commands to show the status of GLBP

A

show glbp show glbp brief

24
Q

What is the GLBP term for a router that is active in a LB group?

A

A forwarder

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