Server Load Balancing Methods Without New Hardware

Server Administration / Virtualization

A server administrator needs to implement load balancing without purchasing any new hardware or implementing any new software. Which of the following will the administrator MOST likely implement?

Round robin Source Reference Answer
Link aggregation
Most recently used
Heartbeat

Community Votes

67%

33%

67% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.

Community Insight

Tests the distinction between application/server-level load balancing algorithms and physical/network link aggregation, with the trap being the interpretation of 'no new software' excluding basic OS features.

The question tests knowledge of software-based load balancing algorithms versus hardware dependencies. Community consensus favors Round Robin as the standard algorithmic approach, though Link Aggregation is a strong distractor for network-level redundancy.

Link Aggregation (B) is chosen by some candidates who confuse network interface bonding/NIC teaming with server workload distribution, or interpret 'load balancing' strictly at the OSI Layer 2 level.

Community Discussion (4 comments)

Stache 👍 1 Selected: A

Only "Load Balancing" methods outlined in the "Load Balancing" section of the Server+ Student Guide are "A. Round Robin" and "C. Most recently used". Going with A as C is described as "attempting" to use existing machines and can spin up VMs, contradicting the goal of no additional software.

kx7tg4xu 👍 1 Selected: B

B. Link aggregation

ccoli 👍 1

It's B. RR might require new hardware in the form of additional servers. Most servers have more than one NIC and even if it didn't an additional NIC is cheaper than additional server. Also all server need the redundancy and load balancing that NIC teaming offers, only select types need RR.

surfuganda 👍 1 Selected: A

A. Round robin

Comments & Corrections

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Expert Analysis

Why the Answer Is Correct

Round Robin is a fundamental scheduling algorithm used in software-based load balancers (like those built into Windows Server IIS, Linux Nginx/Apache, or hypervisors) to distribute requests evenly across available resources. It requires no additional hardware and typically relies on existing OS capabilities or lightweight software configurations, fitting the constraint perfectly.

Why the Other Options Are Wrong

Link Aggregation (B) combines multiple network interfaces for throughput and redundancy but does not balance server workloads or applications. Most Recently Used (C) is an eviction policy for caches, not a load balancing strategy. Heartbeat (D) is a failover mechanism for high availability, not for distributing active traffic loads.

Community Comment Notes

Comment [1] correctly identifies that Round Robin and Most Recently Used are the primary load balancing methods discussed in the context of server resource allocation. However, comments [2] and [3] mistakenly argue for Link Aggregation, confusing network bandwidth aggregation with server load distribution. This highlights a common confusion between Layer 2 connectivity and Layer 7 application distribution.

Exam Strategy

Focus on distinguishing between mechanisms that provide redundancy (Heartbeat, Link Aggregation) and those that actively distribute workload (Round Robin, Least Connections). Remember that 'no new software' often implies using standard OS features or inherent architectural properties rather than purchasing third-party appliances.

Related Analysis

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