CCNA - Hsrp Vrrp Glbp Quiz

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1. Which one of these is a valid HSRP Virtual Mac Address?

Explanation

With HSRP, two or more devices support a virtual router with a fictitious MAC address and unique IP address. There are two version of HSRP.

+ With HSRP version 1, the virtual router’s MAC address is 0000.0c07.ACxx , in which xx is the HSRP group.
+ With HSRP version 2, the virtual MAC address if 0000.0C9F.Fxxx, in which xxx is the HSRP group.

Note: Another case is HSRP for IPv6, in which the MAC address range from 0005.73A0.0000 through 0005.73A0.0FFF.

-> A is correct.

(Good resource for HSRP: http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/unicast/configuration/guide/l3_hsrp.html)

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About This Quiz
CCNA Quizzes & Trivia

This CCNA quiz focuses on HSRP, VRRP, and GLBP protocols, assessing knowledge of their operations, configurations, and roles in network resilience. It is designed for individuals preparing for... see moreCISCO certifications, enhancing skills in managing redundant network paths and ensuring continuous network availability. see less

2. Which statement describes VRRP object tracking?

Explanation

Object tracking is the process of tracking the state of a configured object and uses that state to determine the priority of the VRRP router in a VRRP group -> B is correct.

(Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/unicast/configuration/guide/l3_cli_nxos/l3_vrrp.html#wp1074871)

Note: Unlike HSRP which can track interface status directly, VRRP can only track interface status through a tracked object.

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

Explanation

In a GLBP (Gateway Load Balancing Protocol) network, the AVG (Active Virtual Gateway) is responsible for handling ARP (Address Resolution Protocol) requests. The AVG is the device that actively participates in load balancing and is responsible for assigning virtual MAC addresses to the active routers in the GLBP group. When a host sends an ARP request, it is the AVG that responds with the virtual MAC address of the active router, allowing for load balancing and redundancy in the network.

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

Explanation

One disadvantage of HSRP and VRRP is that only one router is in use, other routers must wait for the primary to fail because they can be used. However, Gateway Load Balancing Protocol (GLBP) can use of up to four routers simultaneously. In GLBP, there is still only one virtual IP address but each router has a different virtual MAC address. First a GLBP group must elect an Active Virtual Gateway (AVG). The AVG is responsible for replying ARP requests from hosts/clients. It replies with different virtual MAC addresses that correspond to different routers (known as Active Virtual Forwarders – AVFs) so that clients can send traffic to different routers in that GLBP group (load sharing).

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

Explanation

The virtual MAC address of HSRP version 1 is 0000.0C07.ACxx, where xx is the HSRP group number in hexadecimal based on the respective interface. For example, HSRP group 10 uses the HSRP virtual MAC address of 0000.0C07.AC0A. HSRP version 2 uses a virtual MAC address of 0000.0C9F.FXXX (XXX: HSRP group in hexadecimal)

For more information about HSRP operation, please read our HSRP tutorial.

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

Explanation

GLBP supports clear text and MD5 password authentication between GLBP group members, providing security for communication within the group. GLBP supports up to 1024 virtual routers, allowing for scalability and flexibility in network design. GLBP can load share traffic across a maximum of four routers, distributing the workload and improving network performance.

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Which one of these is a valid HSRP Virtual Mac Address?
Which statement describes VRRP object tracking?
In a GLBP network, who is responsible for the arp request?
In GLBP, which router will respond to client ARP requests?
Which three statements about HSRP operation are true? (Choose three)
What are three benefits of GLBP? (Choose three)
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