Courseiva

CCNA Hsrp Questions

16 questions · Hsrp topic · All types, answers revealed

1
MCQhard

A network administrator has configured HSRP between RouterA and RouterB for VLAN 10. End hosts using the virtual IP 192.168.1.1 as their default gateway experience intermittent connectivity losses, and pings to 192.168.1.1 often fail. The output of 'show standby brief' on both routers shows the state as Active. What is the most likely cause?

A.The virtual IP address is configured on only one router.
B.The routers are configured with mismatched HSRP authentication methods.
C.The HSRP group number on one router is set to 0.
D.The priority on both routers is configured to the same value.
AnswerB

Mismatched authentication (e.g., MD5 vs. text) causes each router to disregard the other's HSRP hellos. Each then assumes no peers exist and becomes Active, leading to both routers claiming the virtual IP and MAC, which results in ARP table flapping and intermittent connectivity.

Why this answer

When both routers show the HSRP state as Active, a 'dual-active' scenario exists, which causes intermittent connectivity because both routers forward traffic for the virtual IP. Mismatched HSRP authentication methods (e.g., one router using plain-text authentication and the other using MD5) prevent the routers from exchanging proper Hello messages, so they fail to negotiate a single Active router. This is the most likely cause because authentication mismatches break the HSRP adjacency, leading to both routers assuming the Active role.

Exam trap

Cisco often tests the concept that HSRP authentication mismatches cause a dual-active failure, while candidates may incorrectly assume that equal priorities or group number 0 are the root cause.

Why the other options are wrong

A

A missing virtual IP on one router does not cause both to be Active; the router without the virtual IP cannot claim the Active role for that address.

C

A group number mismatch does not cause both routers to appear as Active for the same virtual IP; they would be in separate groups.

D

Equal priority does not lead to multiple Active routers; HSRP uses the interface IP address as a tiebreaker to elect a single Active router.

2
Multi-Selectmedium

Which TWO statements about HSRP active/standby election, priority, and preempt are true?

Select 2 answers
A.The router with the highest priority becomes the active router.
B.If priorities are equal, the router with the highest MAC address becomes active.
C.Preemption is enabled by default on all HSRP routers.
D.The 'show standby' command can be used to verify the active and standby routers, priority, and preemption status.
E.The router with the lowest priority becomes the standby router.
AnswersA, D

HSRP uses a priority value from 0 to 255, with a default of 100, to determine the active router. The router with the highest priority wins the election and becomes the active virtual router, forwarding traffic for the standby group. For example, a router with priority 150 will be chosen over a router with priority 100, regardless of which router came up first, assuming preemption is enabled.

Why this answer

In HSRP, the router with the highest priority (default 100, range 0-255) becomes the active router (A). If priorities are equal, the router with the highest IP address on the subnet wins, not the highest MAC address (B). Preemption is disabled by default; 'standby preempt' must be configured for a higher-priority router to take over (C).

The 'show standby' command displays active/standby router roles, priority values, and preemption status, verifying D. The standby router is the one with the second-highest priority, not the lowest (E).

Exam trap

Cisco often tests the misconception that HSRP uses MAC address as a tiebreaker (it uses IP address) and that preemption is enabled by default (it is not).

Why the other options are wrong

B

HSRP tie-breaking uses the highest IP address on the HSRP interface, not the MAC address. The MAC address is used for virtual MAC assignment but does not influence election.

C

Preemption is disabled by default in HSRP; it must be explicitly configured with the 'standby preempt' command. Without preemption, a higher priority router will not take over active role from a lower priority router that is already active.

E

The standby router is the router with the second-highest priority, not the lowest. The lowest priority router would only become standby if all other routers fail, as it is the least preferred.

3
PBQhard

You are connected to R1. Configure HSRP on R1 and R2 so that R1 is the active gateway for VLAN 100 with a virtual IP of 192.0.2.254. R1 should preempt and track its G0/1 interface to decrement priority by 20 if it goes down. Currently, both routers show active for the group, and the virtual IP is incorrectly set. Troubleshoot and fix the configuration on R1 only.

Hints

  • Check the virtual IP address in the standby configuration.
  • Ensure R1's priority is higher than R2's to become active.
  • Preempt must be configured to re-elect after a priority change.
A.Change the virtual IP to 192.0.2.254 and set priority to 110.
B.Change the virtual IP to 192.0.2.254 and remove the track command.
C.Change the virtual IP to 192.0.2.254 and configure preempt on R2.
D.Change the virtual IP to 192.0.2.254 and set priority to 100.
AnswerA
solution
! R1
interface GigabitEthernet0/0.100
standby 1 ip 192.168.100.254
standby 1 priority 110
standby 1 preempt

Why this answer

The issue is that both routers are active because the virtual IP on R1 was 192.168.100.254, which is not in the same subnet as the interface IP (192.0.2.1/24), so HSRP couldn't form a common group. Changing the virtual IP to 192.0.2.254 fixes the subnet mismatch. Additionally, setting R1's priority to 110 ensures it becomes the active router because it has preempt configured, and the higher priority overrides R2's default 100.

The track command remains correct as it reduces priority if G0/1 fails.

Exam trap

Trap: Candidates may focus on the track command or preempt, but the primary issue is the virtual IP mismatch and default priority. Always verify the virtual IP belongs to the same subnet as the interface and adjust priority to ensure the desired active router.

Why the other options are wrong

B

Removing the track command would prevent R1 from decrementing priority when G0/1 fails, violating the requirement to track the interface.

C

Configuring preempt on R2 might allow it to take over, but the task only asks to fix R1; the primary issue is the virtual IP mismatch on R1.

D

Setting priority to 100 (the default) without preempt? Actually, R1 already has preempt, but with equal priority, the highest IP wins, which might be R2, so R1 might not become active. Increasing priority to 110 is required.

4
PBQhard

You are connected to R1. The network requires HSRP for default gateway redundancy on subnet 192.168.1.0/24. R2 should be the active router, and R1 the standby. Currently, both routers show as active. Configure R1 with priority 90, enable preempt, ensure the virtual IP is 192.168.1.254, and configure tracking of interface GigabitEthernet0/1 (subnet 203.0.113.0/30) so that if R1's tracked interface goes down, its priority decreases by 20. Verify the final state with 'show standby brief'.

Network Topology
G0/0192.168.1.1/24G0/0192.168.1.2/24G0/1203.0.113.1/30R2switchR1ISP

Hints

  • Both routers show active; check priority values and preempt configuration.
  • The virtual IP must match on both routers; verify it's 192.168.1.254.
  • Use 'standby 1 track' with the correct interface and decrement value.
A.interface GigabitEthernet0/0 standby version 2 standby 1 ip 192.168.1.254 standby 1 priority 90 standby 1 preempt standby 1 track GigabitEthernet0/1 20
B.interface GigabitEthernet0/0 standby version 2 standby 1 ip 192.168.1.254 standby 1 priority 110 standby 1 preempt standby 1 track GigabitEthernet0/1 20
C.interface GigabitEthernet0/0 standby version 2 standby 1 ip 192.168.1.254 standby 1 priority 90 standby 1 preempt standby 1 track GigabitEthernet0/1 30
D.interface GigabitEthernet0/0 standby version 2 standby 1 ip 192.168.1.254 standby 1 priority 90 standby 1 preempt standby 1 track GigabitEthernet0/0 20
AnswerA
solution
! R1
interface GigabitEthernet0/0
standby 1 priority 90
standby 1 preempt
standby 1 track GigabitEthernet0/1 20
end

Why this answer

The scenario requires R2 to be the HSRP active router. By default, both routers have priority 100, and HSRP election would select the router with the higher IP address as active if priorities are equal. To ensure R2 becomes active, R1's priority must be lowered to 90.

Additionally, tracking interface GigabitEthernet0/1 with a decrement of 20 is configured so that if R1's uplink fails, its priority drops to 70, further preventing it from becoming active. The correct configuration on R1 sets priority 90, enables preempt, and tracks the correct interface with decrement 20. Options B, C, and D are wrong because: B sets a higher priority (110) which would make R1 active; C uses an incorrect decrement of 30; and D tracks the wrong interface (Gig0/0 instead of Gig0/1).

Exam trap

Trap: Candidates may think that increasing priority ensures redundancy, but the requirement specifies R2 as active, so R1's priority must be lower. Also, ensure the tracked interface is the correct one (Gig0/1) and the decrement value matches exactly.

Why the other options are wrong

B

The priority value is higher than the default, which would make R1 active instead of standby.

C

The decrement value does not match the required 20; it is 30.

D

The tracked interface is wrong; it should be GigabitEthernet0/1, not GigabitEthernet0/0.

5
MCQmedium

A network engineer is configuring HSRP on a pair of Cisco routers to provide first-hop redundancy for a subnet. The goal is to ensure that the router with the highest IPv4 address always becomes the active router, and that it automatically reclaims the active role after a failure. The engineer configures priority 100 on both routers. Which additional configuration is required to meet these objectives?

A.Configure priority 150 on one router and priority 50 on the other.
B.Configure the preempt command on both routers.
C.Configure the standby 1 priority 100 command on both routers.
D.Configure the standby 1 priority 100 on one router and standby 1 priority 50 on the other.
AnswerB

With equal priority, HSRP elects the active router based on the highest IP address. The preempt command ensures that if a router with a higher IP address (and equal priority) recovers after a failure, it will preempt the current active router and reclaim the active role, as required.

Why this answer

HSRP uses priority to determine the active router, but without the preempt command, a router with a higher priority will not take over the active role if it comes online after a failure. Since both routers have the same priority (100), the router with the highest IPv4 address will become active initially, but to ensure it automatically reclaims the active role after a failure, preempt must be enabled on both routers. This allows the router with the higher IP address (and equal priority) to preempt the current active router when it recovers.

Exam trap

Cisco often tests the misconception that priority alone determines active router selection and that preempt is only needed when priorities differ, but the trap here is that without preempt, even with equal priorities, the router with the higher IP address will not reclaim the active role after a failure.

Why the other options are wrong

A

Configuring different priorities (150 and 50) would force the router with priority 150 to become active regardless of IP address, contradicting the requirement to use the highest IPv4 address for election. HSRP uses priority as the primary criterion; only when priorities are equal does the highest IP address break the tie.

C

The command 'standby 1 priority 100' is already implied by setting priority 100; it does not enable preemption. With equal priority and no preempt, both routers will remain in standby state indefinitely because HSRP cannot determine an active router without a tiebreaker or preemption. The active router election requires either a priority difference or preempt to resolve the tie.

D

Configuring different priorities (100 and 50) would make the router with priority 100 active regardless of IP address, which violates the requirement to use the highest IPv4 address for election. The requirement explicitly states that priorities must remain equal so that the highest IP address determines the active router.

6
MCQmedium

What problem is HSRP designed to solve?

A.Layer 2 switching loops
B.Loss of the default gateway if one router fails
C.Duplicate MAC addresses on trunks
D.Wireless interference
AnswerB

HSRP (Hot Standby Router Protocol) is a Cisco-proprietary First Hop Redundancy Protocol designed to eliminate the single point of failure that a default gateway represents. It allows two or more routers to share a virtual IP address and virtual MAC address, so hosts send traffic to the virtual gateway regardless of which physical router is active. If the active router fails or its upstream link goes down, the standby router assumes the virtual IP/MAC in seconds, preserving seamless connectivity to external networks.

Why this answer

HSRP provides a virtual default gateway so hosts continue forwarding traffic even if one physical gateway router fails.

Exam trap

Avoid confusing HSRP with load balancing or security protocols. Remember, HSRP is about redundancy, not traffic distribution or encryption.

Why the other options are wrong

A

Layer 2 switching loops are prevented by Spanning Tree Protocol (STP), not by HSRP. HSRP operates at Layer 3 to provide default gateway redundancy, not loop prevention.

C

Duplicate MAC addresses on trunks are typically caused by misconfigurations or bridging loops, not by HSRP. HSRP uses a virtual MAC address that is unique and does not cause duplication issues.

D

Wireless interference is a physical layer issue related to radio frequency signals, not something HSRP addresses. HSRP is a Layer 3 redundancy protocol for routers.

7
Drag & Dropmedium

Drag and drop the following steps into the correct order to configure HSRP version 2 on an interface and ensure the router becomes the active router, then verify the HSRP state.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4

Why this order

The correct order for configuring HSRP version 2 to ensure the router becomes the active router is: first configure HSRP version 2 on the interface, then configure the HSRP group and virtual IP address, then set the HSRP priority to a higher value, then enable HSRP preempt, and finally verify using 'show standby'. Only option A follows this sequence. Options B, C, and D are incorrect because they place version after group, priority before version, or preempt before priority.

Exam trap

Candidates often place version configuration after group creation or set preempt before priority. Remember: version must be set before the group is created, priority before preempt.

8
PBQhard

You are connected to R1. Configure HSRP so that R1 becomes the active router for VLAN 10, with a virtual IP of 192.168.10.1. Ensure that R1 preempts if it comes back online after a failure. Also, configure R1 to decrement its HSRP priority by 20 if its GigabitEthernet0/1 interface goes down. The current configuration shows both routers as active — identify and fix the issues.

Network Topology
Gi0/0.10192.168.10.3/24Gi0/0.10192.168.10.2/24switchR1R2

Hints

  • Both routers show Active because they have equal priority and no preempt.
  • The virtual IP configured is 192.168.10.254 but the task requires 192.168.10.1.
  • To ensure R1 is active, set its priority higher than R2's default (100) and enable preempt.
A.Change the virtual IP to 192.168.10.1, set priority to 110, enable preempt, and track interface GigabitEthernet0/1 with decrement 20.
B.Change the virtual IP to 192.168.10.1, set priority to 100, enable preempt, and track interface GigabitEthernet0/1 with decrement 20.
C.Change the virtual IP to 192.168.10.254, set priority to 110, enable preempt, and track interface GigabitEthernet0/1 with decrement 20.
D.Change the virtual IP to 192.168.10.1, set priority to 110, enable preempt, but do not track any interface.
AnswerA
solution
! R1
interface GigabitEthernet0/0.10
standby 10 ip 192.168.10.1
standby 10 priority 110
standby 10 preempt
standby 10 track GigabitEthernet0/1 20

Why this answer

The scenario indicates both routers appear as Active, which is abnormal. This could result from a misconfigured virtual IP or group number mismatch. The required fix is to set the virtual IP to 192.168.10.1, assign R1 a higher priority (110 vs R2's default 100), enable preempt so R1 reclaims active role after failure, and track GigabitEthernet0/1 with a decrement of 20 to lower priority if that interface goes down.

Exam trap

Watch for three common mistakes: (1) forgetting to set a higher priority to win the election, (2) using the wrong virtual IP address, and (3) omitting the track command when required. Also note that preempt alone does not guarantee active status if priorities are equal.

Why the other options are wrong

B

HSRP election uses priority as the primary tie-breaker; equal priority leads to comparison of primary IP addresses, which may not favor R1.

C

The virtual IP address must be consistent across all HSRP routers and match the configured gateway; a mismatch prevents proper operation.

D

Without tracking, R1's priority remains unchanged even if the uplink fails, so R1 would remain active despite losing connectivity, causing traffic black-holing.

9
Drag & Dropmedium

Drag and drop the following steps into the correct order to configure and verify HSRP with priority and preemption on an interface.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
6Step 6

Why this order

First, enter interface configuration mode to start configuring the specific interface. Next, assign an IP address because HSRP requires a real IP on the interface for communication between HSRP routers. After that, define the HSRP group and virtual IP, which clients use as their default gateway.

Then set a higher priority to influence the active router election; priority must be configured before enabling preemption, as preemption relies on priority to determine when to take over. Finally, exit configuration mode and verify with show standby to confirm the HSRP state.

10
Drag & Dropmedium

Drag and drop the following steps into the correct order to configure and verify HSRP on a router interface.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5
6Step 6
7Step 7

Why this order

The correct order begins by entering interface configuration mode, because all HSRP commands are applied at the interface level. Next, assign a physical IPv4 address to the interface, as HSRP requires a Layer 3 interface with an IP address to function. Set HSRP version 2 before defining the HSRP group to ensure compatibility with extended group numbers and newer features.

Then configure the HSRP group number and virtual IP address to create the standby group. After that, set the router’s priority and enable preemption; these steps customize the active/standby election process. Finally, verify the configuration with the show standby command to confirm HSRP operation.

11
Drag & Dropmedium

Drag and drop the following steps into the correct order to configure and verify HSRP active/standby election, including priority, preempt, virtual IP, and failover verification.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4

Why this order

The order ensures the interface is ready, then priority and preempt are set to influence the election, followed by the virtual IP and verification of failover behavior.

Exam trap

Do not configure the virtual IP before setting priority and preempt, as the router may become active with default priority and then preempt later, causing unnecessary flapping. Always configure the interface first, then priority/preempt, then virtual IP.

12
PBQhard

You are connected to R1, a multilayer switch acting as an HSRP active gateway for VLAN 100. The network requires R1 to be the active router with a virtual IP of 192.168.100.1. Currently, both R1 and the peer router R2 show as active in 'show standby brief', and the virtual IP is misconfigured. Configure HSRP on R1 to fix these issues: set priority to 110, enable preempt, correct the virtual IP, and track interface GigabitEthernet0/1 (decrement priority by 20 if it goes down).

Network Topology
linkG0/1:10.0.0.1/30linkR1R2upstream router

Hints

  • Check the virtual IP address configured under the standby group — it should match the expected virtual IP.
  • Preempt is disabled by default; verify if it's configured to allow R1 to become active after a failure.
  • Use 'show standby' to see all details including tracking status.
A.interface Vlan100 standby 100 ip 192.168.100.1 standby 100 priority 110 standby 100 preempt standby 100 track GigabitEthernet0/1 20
B.interface Vlan100 standby 100 ip 192.168.100.254 standby 100 priority 110 standby 100 preempt standby 100 track GigabitEthernet0/1 20
C.interface Vlan100 standby 100 ip 192.168.100.1 standby 100 priority 100 standby 100 preempt standby 100 track GigabitEthernet0/1 20
D.interface Vlan100 standby 100 ip 192.168.100.1 standby 100 priority 110 standby 100 track GigabitEthernet0/1 20
AnswerA
solution
! R1
interface Vlan100
standby 100 ip 192.168.100.1
standby 100 priority 110
standby 100 preempt
standby 100 track GigabitEthernet0/1 20

Why this answer

The problem had multiple issues: the virtual IP was wrong (192.168.100.254 instead of 192.168.100.1), preempt was not enabled (both routers could claim active), and priority was default (100). Additionally, interface tracking was missing to decrement priority if the upstream link failed. The solution consists of four commands: 'standby 100 ip 192.168.100.1' to set the correct virtual IP, 'standby 100 priority 110' to make R1 the active router, 'standby 100 preempt' to allow R1 to reclaim active role after recovery, and 'standby 100 track GigabitEthernet0/1 20' to reduce priority by 20 if that interface goes down.

Exam trap

Watch out for three common HSRP pitfalls: (1) virtual IP must match the configured gateway, (2) preempt is required for a router to reclaim active role after recovery, and (3) priority must be higher than the peer to be preferred. Also, remember that interface tracking decrements priority, so the tracked interface must be specified correctly.

Why the other options are wrong

B

The virtual IP address is wrong; it should be 192.168.100.1, not 192.168.100.254.

C

Priority must be higher than the default (100) to ensure R1 becomes the active router; 110 is required.

D

Preempt is required to allow R1 to reclaim the active role when its priority becomes higher again after a failure.

13
MCQmedium

What problem do first-hop redundancy protocols such as HSRP solve?

A.They prevent duplicate MAC addresses on a LAN
B.They provide a backup default gateway for end hosts
C.They replace spanning tree on switched networks
D.They encrypt traffic between users and the default gateway
AnswerB

FHRPs such as HSRP create a virtual IP and virtual MAC address that a group of routers share. One router is elected active and forwards traffic, while the standby router takes over seamlessly if the active fails. End hosts are configured with the virtual IP as their default gateway, so they always have a reachable next hop without needing to change their configuration.

Why this answer

First-hop redundancy protocols allow hosts to use a virtual default gateway that can remain available even if one physical router fails.

Exam trap

A frequent exam trap is mistaking HSRP for a protocol that prevents duplicate MAC addresses or replaces Spanning Tree Protocol (STP). While STP prevents Layer 2 loops by blocking redundant paths, HSRP operates at Layer 3 to provide gateway redundancy. Another trap is assuming HSRP encrypts traffic between hosts and routers, which it does not.

Candidates might also confuse HSRP with routing protocols like OSPF or EIGRP, but HSRP only manages default gateway availability, not routing decisions. Understanding these distinctions is crucial to avoid selecting incorrect options that describe unrelated network functions.

Why the other options are wrong

A

Option A incorrectly states that HSRP prevents duplicate MAC addresses on a LAN. Duplicate MAC address prevention is a function of Layer 2 protocols and network design, not HSRP, which operates at Layer 3 to provide gateway redundancy.

C

Option C incorrectly claims that HSRP replaces Spanning Tree Protocol (STP). STP prevents Layer 2 switching loops, while HSRP provides Layer 3 gateway redundancy; they serve distinct purposes and coexist in networks.

D

Option D incorrectly suggests that HSRP encrypts traffic between users and the default gateway. HSRP does not provide encryption; it only manages gateway availability and failover.

14
Multi-Selectmedium

Which TWO statements are true regarding HSRP active/standby election, priority, and preemption?

Select 2 answers
A.The router with the highest priority becomes the active router.
B.The router with the lowest IP address in the standby group becomes the active router.
C.HSRP priority can be configured from 0 to 100, with 100 being the highest.
D.Preemption is enabled by default on all HSRP interfaces.
E.If preemption is enabled, a router with a higher priority can take over the active role from a router with a lower priority that is already active.
F.The standby router uses a priority of 0 to indicate it will never become active.
AnswersA, E

HSRP uses a priority value (0–255, default 100) to determine the active router; the highest priority wins.

Why this answer

In HSRP, the router with the highest priority wins the election to become the active router (A correct). If preemption is enabled, a router with a higher priority can take over the active role from a lower-priority active router (E correct). Option B is incorrect: when priorities are equal, the router with the highest IP address in the standby group is chosen, not the lowest.

Option C is incorrect: HSRP priority ranges from 0 to 255, not 0 to 100. Option D is incorrect: preemption is disabled by default on all HSRP interfaces. Option F is incorrect: a priority of 0 is used to indicate that the router will not participate in the election or will immediately give up the active role, but it does not mean it will never become active; in fact, it can be configured to force a new election.

Exam trap

Cisco often tests the exact priority range (0–255) and the tiebreaker rule (highest IP, not lowest), leading candidates to confuse HSRP with VRRP or GLBP, or to misremember the priority scale.

Why the other options are wrong

B

This describes a different mechanism (e.g., VRRP uses IP address as a tiebreaker only after priority).

C

The range is 0–255, not 0–100.

D

Preemption is not a default behavior.

F

Priority 0 is a special value, not the normal standby priority.

15
Drag & Dropmedium

Drag and drop the following steps into the correct order to configure HSRP on a Cisco IOS-XE router, including priority, preempt, virtual IP, and then verify the active/standby election and failover process.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4

Why this order

First, the interface is configured. Then the virtual IP is set, followed by priority and preempt. Verification confirms the election, and failover testing demonstrates the preempt mechanism works.

Exam trap

The exam trap is that candidates often confuse the order of priority and preempt, or try to configure HSRP parameters before the interface is ready. Remember: interface first, then virtual IP, then priority, then preempt. Verification and testing come last.

16
Drag & Dropmedium

Drag and drop the following steps into the correct order to configure HSRP on an interface and verify the active/standby election process, including failover and verification.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4

Why this order

Only option A correctly orders the steps for configuring HSRP on an interface. The proper sequence is: enter interface configuration mode, set the HSRP version, configure the virtual IP, set priority if needed, enable preempt, and verify with 'show standby'. Options B, C, and D contain incorrect steps or order.

B suggests creating a VLAN and assigning an IP to the VLAN interface, which is not part of HSRP configuration (HSRP is configured on an existing Layer 3 interface, not by creating a VLAN). C places priority before virtual IP and uses 'show running-config' for verification, which does not show active/standby roles. D incorrectly assumes HSRP is enabled globally and uses 'debug standby' for initial verification, which is not the standard first verification command.

Exam trap

Candidates often confuse the order of HSRP configuration steps or think HSRP requires a global configuration mode like routing protocols. Remember: HSRP is configured per interface, and verification uses 'show standby' to see real-time roles.

Ready to test yourself?

Try a timed practice session using only Hsrp questions.