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ICND 2 > HSRP > Flashcards

HSRP Flashcards

1
Q

Which three statements about HSRP operation are true?

  • The virtual IP address and virtual MAC address are active on the HSRP master router
  • The HSRP default timers are a 3 second hello interval and a 10 second dead interval
  • HSRP supports only clear-text authentication
  • The HSRP virtual IP address must be on a different subnet than the router’s interfaces on the same LAN
  • The HSRP virtual IP address must be the same as one of the router’s interface addresses on the LAN
  • HSRP supports up to 255 groups per interface, enabling an administration form of load balancing
A
  • The virtual IP address and virtual MAC address are active on the HSRP Master router
  • The HSRP default timers are a 3 second hello interval and a 10 second dead interval
  • HSRP supports up to 255 groups per interface, enabling an administrative form of load balancing
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2
Q

Which statement describes VRRP object tracking?

  • It monitors traffic flow and link utilization
  • It ensures the best VRRP router is the virtual router master for the group
  • It causes traffic to dynamically move to higher bandwidth links
  • It thwarts man-in-the-middle attacks
A
  • It ensures the best VRRP router is the virtual router master for the group
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3
Q

In a GLBP network, who is responsible for the arp request?

A

AVG

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4
Q

What is a valid HSRP virtual MAC address?

A. 0000.5E00.01A3
B. 0007.B400.AE01
C. 0000.0C07.AC15
D. 0007.5E00.B301

A

C. 0000.0C07.AC15

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5
Q

Which three statements about HSRP operation are true? (Choose three.)

A. The virtual IP address and virtual MA+K44C address are active on the HSRP Master router.
B. The HSRP default timers are a 3 second hello interval and a 10 second dead interval.
C. HSRP supports only clear-text authentication.
D. The HSRP virtual IP address must be on a different subnet than the routers’ interfaces on the same LAN.
E. The HSRP virtual IP address must be the same as one of the router’s interface addresses on the LAN.
F. HSRP supports up to 255 groups per interface, enabling an administrative form of load balancing.

A

A. The virtual IP address and virtual MA+K44C address are active on the HSRP Master router.

B. The HSRP default timers are a 3 second hello interval and a 10 second dead interval.

B. The HSRP default timers are a 3 second hello interval and a 10 second dead interval.

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6
Q

In GLBP, which router will respond to client ARP requests?

A. The active virtual gateway will reply with one of four possible virtual MAC addresses.
B. All GLBP member routers will reply in round-robin fashion.
C. The active virtual gateway will reply with its own hardware MAC address.
D. The GLBP member routers will reply with one of four possible burned in hardware addresses.

A

A. The active virtual gateway will reply with one of four possible virtual MAC addresses.

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7
Q

What are three benefits of GLBP? (Choose three.)

A. GLBP supports up to eight virtual forwarders per GLBP group.
B. GLBP supports clear text and MD5 password authentication between GLBP group members.
C. GLBP is an open source standardized protocol that can be used with multiple vendors.
D. GLBP supports up to 1024 virtual routers.
E. GLBP can load share traffic across a maximum of four routers.
F. GLBP elects two AVGs and two standby AVGs for redundancy.

A

B. GLBP supports clear text and MD5 password authentication between GLBP group members.

D. GLBP supports up to 1024 virtual routers.

E. GLBP can load share traffic across a maximum of four routers.

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8
Q

Which three options are the HSRP states for a router? (Choose three.)

A. initialize
B. learn
C. secondary
D. listen
E. speak
F. primary

A

B. learn

D. listen

E. speak

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9
Q

A First Hop Redundancy protocol that is designed by Cisco to create a redundancy framework between network routers or switches in order to achieve default gateway failover capabilities

A

Hot Standby Router Protocol (HSRP)

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10
Q

What is the function of FHRP?

A

To provide default gateway redundancy

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11
Q

The router that is currently forwarding packets for the virtual router

A

Active (primary) router

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12
Q

The primary backup router

A

Standby (backup) router

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13
Q

The set of routers participating in HSRP that jointly emulate a virtual router

A

Standby group

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14
Q

When IP hosts operate on a subnet with routers R1 and R2 configured for HSRP, which IP address should these hosts configure as their default gateway?

A

virtual IP address

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15
Q

What command is used to establish the HSRP group ID and the virtual router IP address?

A

standby [group-number] ip [ip-address]

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16
Q

What command sets a priority value used in choosing the active router?

A

standby [group-number] priority priority

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17
Q

What command configures the router to preempt?

A

standby [group-number] preempt

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18
Q

What command is used to monitor the HSRP state on each router in the standby group?

A

show standby

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19
Q

What is the default virtual MAC address of HSRP version 1?

A

0c07

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20
Q

If _____ is enabled, the router with the highest priority becomes the active router.

A

preemption

21
Q

How many missed hello messages take place before the standby router assumes the active role?

A

three

22
Q

What is the default MAC address of HSRP version 2?

A

0C9F

23
Q

What are the two HSRP states?

A

Active Init

24
Q

What multicast address is used for hello packets?

A

224.0.0.2

25
Q

R1 and R2 are in HSRP group 1. R1 is the active router with a priority of 120 and R2 has the default priority. R1 reboots and so R2 becomes the active router. What must be enabled for R1 to reassume the active router role?

A

preempt

26
Q

What is the default priority of HSRP?

A

100

27
Q

A router enters the _____ state after it experiences a configuration change or when an interface becomes available.

A

Init

28
Q

From the Init state, the router progresses into the _____ state, where it determines the virtual IP address of the gateway and waits for hello packets from the active router.

A

learn

29
Q

Once the router has learned the virtual IP address, the router progresses to the _____ state. In this state the router will listen for hello packets from the active and standby routers.

A

listen

30
Q

After the router assumes the active state, the router with the next _____ priority in the listen state assumes the role of the standby router.

A

highest

31
Q

If the highest priority values between two routers are the same, it will look at what to make its standby router determination based on what?

A

highest IP address

32
Q

What is the maximum groups per interface that HSRP supports?

A

255

33
Q

An HSRP group has a virtual MAC address of 0000.0c07.ac0b. What part of the address identifies the HSRP group number?

A

0b

34
Q

What are two Cisco-proprietary FHRPs?

A

HSRP (Hot Standby Router Protocol) GLBP (Gateway Load Balancing Protocol)

35
Q

What is the IEEE standard FHRP?

A

Virtual Router Redundancy Protocol (VRRP)

36
Q

In addition to FHRP what is a simple means of load balancing traffic across gateways? Successful communication is intermittent and unpredictable because static routes remain in the routing table even if the route becomes unavailable.

A

Equal-cost default route

37
Q

What two HSRP misconfigurations cause both HSRP routers to attempt to use the same virtual IP address (VIP), at the same time, because both routers believe that they should be active.

A

mismatched HSRP group numbers

mismatched version number

38
Q

HSRP does not support automatic load balancing of traffic between routers but it is possible to implement load sharing, which is an administrative form of load balancing. How is load sharing implemented on HSRP?

A

By configuring multiple groups per HSRP interface and configuring priority so that each group becomes the active HSRP router for a different network segment

39
Q

A standby router will assume the active state if it does not receive any hello packets from the active router for the duration of the hold time timer. What is the default hold time timer?

A

10 seconds or three times the hello timer

40
Q

This is the state at the start and indicates that HSRP does not run. This state is entered through a configuration change or when an interface first becomes available.

A

Initial

41
Q

The router has not determined the virtual IP address and has not yet seen an authenticated hello message from the active router. In this state, the router still waits to hear from the active router.

A

Learn

42
Q

The router knows the virtual IP address, but the router is neither the active router nor the standby router. It listens for hello messages from those routers.

A

Listen

43
Q

The router sends periodic hello messages and actively participates in the election of the active and/or standby router. A router cannot enter this state unless the router has the virtual IP address.

A

Speak

44
Q

The router is a candidate to become the next active router and sends periodic hello messages. With the exclusion of transient conditions, there is, at most, one router in the group in this state.

A

Standby

45
Q

The router currently forwards packets that are sent to the group virtual MAC address. The router sends periodic hello messages.

A

Active

46
Q

A router will only enter the _____ state if a router with a higher priority becomes the active router.

A

speak

47
Q

In GLBP, which router will respond to client ARP requests?In GLBP, which router will respond to client ARP requests?

A. The active virtual gateway will reply with one of four possible virtual MAC addresses.
B. All GLBP member routers will reply in round-robin fashion.
C. The active virtual gateway will reply with its own hardware MAC address.
D. The GLBP member routers will reply with one of four possible burned in hardware addresses.A. The active virtual gateway will reply with one of four possible virtual MAC addresses. B. All GLBP member routers will reply in round-robin fashion. C. The active virtual gateway will reply with its own hardware MAC address. D. The GLBP member routers will reply with one of four possible burned in hardware addresses.

A

A. The active virtual gateway will reply with one of four possible virtual MAC addresses.

48
Q

What are three benefits of GLBP? (Choose three)What are three benefits of GLBP? (Choose three)

A. GLBP supports up to eight virtual forwarders per GLBP group.
B. GLBP supports clear text and MD5 password authentication between GLBP group members.
C. GLBP is an open source standardized protocol that can be used with multiple vendors.
D. GLBP supports up to 1024 virtual routers.
E. GLBP can load share traffic across a maximum of four routers.
F. GLBP elects two AVGs and two standby AVGs for redundancy.

A. GLBP supports up to eight virtual forwarders per GLBP group. B. GLBP supports clear text and MD5 password authentication between GLBP group members. C. GLBP is an open source standardized protocol that can be used with multiple vendors. D. GLBP supports up to 1024 virtual routers. E. GLBP can load share traffic across a maximum of four routers. F. GLBP elects two AVGs and two standby AVGs for redundancy.

A

B. GLBP supports clear text and MD5 password authentication between GLBP group members.

D. GLBP supports up to 1024 virtual routers.

E. GLBP can load share traffic across a maximum of four routers.

49
Q

Which of the following HSRP router states does an active router enter when it is preempted by a higher priority router?Which of the following HSRP router states does an active router enter when it is preempted by a higher priority router?

A. active

B. speak

C. learn

D. listen

E. init

F. standby

A

B. speak

ICND 2 (16 decks)

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