HSRP Quiz: How it Provides First Hop Redundancy with Flashcards

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Questions and Answers

What is the main purpose of first-hop redundancy protocols like HSRP?

To provide redundancy for the default gateway IP address in case of router failure (correct)

To synchronize HSRP state transitions with STP topology changes

To prevent network congestion by load sharing with multiple default gateways

To allow network hosts to have multiple default gateway IP addresses

What is the primary benefit of first-hop router redundancy?

It presents the illusion of a single virtual router to the hosts on the LAN (correct)

It helps in optimizing network performance by load balancing traffic

It allows routers to communicate with each other more efficiently

It provides better security for Layer 2 addresses

Why are network hosts configured with a single default gateway IP address?

To facilitate easy tracking of HSRP state transitions

To simplify router configuration

To ensure that all traffic goes through a specific router (correct)

To prevent network congestion

Which statement best describes the role of FHRP in ensuring continuous network connectivity?

FHRP provides redundancy for the default gateway IP address in case of router failure Signup and view all the answers

What is the purpose of aligning HSRP with STP topology?

To ensure that HSRP routers are synchronized with STP topology changes Signup and view all the answers

Why do two or more routers share an IP address and a MAC (Layer 2) address in a first-hop redundancy setup?

To act as a single 'virtual' router and ensure continuous network connectivity Signup and view all the answers

What is the main difference between VRRP and HSRP?

VRRP allows preemption by default, while in HSRP it needs to be configured manually Signup and view all the answers

In what way is GLBP different from HSRP and VRRP?

GLBP allows routers within the group to perform load balancing, while HSRP and VRRP do not Signup and view all the answers

What happens when the forwarding router or its link fails in an HSRP setup?

The standby router takes over the role of the forwarding router with no service disruption to end stations Signup and view all the answers

Which statement best describes the role of a first-hop redundancy protocol (FHRP) in network connectivity?

FHRP enables seamless router failover, preventing disruptions in network connectivity Signup and view all the answers

What does the Virtual Router Redundancy Protocol (VRRP) enable by default?

Router preemptive failover Signup and view all the answers

How does HSRP prevent disruptions in service for end stations during router failover?

By enabling seamless takeover of the active role by the standby router with no changes on the end stations Signup and view all the answers

What feature distinguishes GLBP from HSRP and VRRP in terms of traffic handling?

GLBP allows routers within the group to handle traffic load balancing, unlike HSRP and VRRP Signup and view all the answers

What is the primary difference between HSRP and VRRP regarding preemption?

VRRP enables preemption by default, while in HSRP it needs to be configured manually Signup and view all the answers

How does GLBP handle traffic transmission to the default gateway IP address?

GLBP distributes the traffic among routers within the group in a round-robin manner for load balancing Signup and view all the answers

How does HSRP ensure that the end stations see no disruption in service during a failover?

By enabling the standby router to immediately assume the role of the active router without changes on the end stations Signup and view all the answers

Study Notes

First-Hop Redundancy Protocols

The primary purpose of first-hop redundancy protocols like HSRP is to provide continuous network connectivity by allowing multiple routers to appear as a single default gateway to network hosts.
The primary benefit of first-hop router redundancy is that it ensures network hosts can continue to forward traffic to the same default gateway IP address, even if one of the routers fails.

Network Host Configuration

Network hosts are configured with a single default gateway IP address to simplify the forwarding process and provide a single point of contact for routing.

FHRP Role in Network Connectivity

The role of FHRP is to ensure continuous network connectivity by providing redundant paths to the default gateway, allowing for automatic failover in case of a router failure.
FHRP aligns with STP topology to prevent network loops and ensure that only one path is available to the default gateway.

HSRP and Other FHRPs

In a first-hop redundancy setup, two or more routers share an IP address and a MAC (Layer 2) address to provide a single virtual router that appears as the default gateway to network hosts.
The main difference between VRRP and HSRP is that VRRP is an open standard, while HSRP is a Cisco-proprietary protocol.
GLBP is different from HSRP and VRRP in that it allows for load balancing across multiple routers, in addition to providing redundancy.
When the forwarding router or its link fails in an HSRP setup, another router takes over as the active router, ensuring continuous network connectivity.

GLBP and VRRP Features

VRRP enables by default the ability for multiple routers to share a virtual IP address.
HSRP prevents disruptions in service for end stations during router failover by ensuring that the standby router takes over as the active router, using the same virtual IP and MAC addresses.
GLBP distinguishes itself from HSRP and VRRP in terms of traffic handling by allowing for load balancing across multiple routers.
The primary difference between HSRP and VRRP regarding preemption is that HSRP allows for preemption, while VRRP does not.
GLBP handles traffic transmission to the default gateway IP address by allowing multiple routers to respond to ARP requests and share the load of traffic transmission.
HSRP ensures that the end stations see no disruption in service during a failover by maintaining the same virtual IP and MAC addresses, even when the active router changes.

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Description

Test your knowledge of First Hop Redundancy Protocol (FHRP) and Hot Standby Router Protocol (HSRP) with this quiz covering the need for first-hop redundancy protocols, HSRP overview, state transitions, configuration, load sharing, tracking options, authentication, timers, and version differences.

FHRP and HSRP Overview Quiz

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