In sports related general knowledge, this question asks you to identify which of the listed cricket grounds is considered one of the smallest international cricket stadiums in the world in terms of boundary size.

Introduction / Context:
Cricket lovers and exam setters alike pay attention not only to teams and records but also to grounds and stadiums. One commonly discussed feature of a cricket ground is the size of its boundaries. Smaller boundaries tend to produce more fours and sixes, which directly influences match strategies. This question focuses on recognising which among the given stadiums is known for having relatively small boundaries compared with other major international grounds.

Given Data / Assumptions:
The options are Carisbrook Stadium, Feroz Shah Kotla, Melbourne Cricket Ground, and Sydney Cricket Stadium.
We interpret "smallest cricket stadium by boundary" in the sense used in many exam oriented sports GK notes, which often highlight Feroz Shah Kotla as having comparatively short boundaries among major traditional grounds.
We ignore minor changes due to remeasurement or temporary boundary adjustments for specific tournaments.

Concept / Approach:
Among the grounds listed, Melbourne Cricket Ground is famous for being very large, and Sydney Cricket Ground is also not known for very small boundaries. Carisbrook Stadium in New Zealand has hosted cricket and rugby but does not commonly appear in exam notes as the smallest in this context. On the other hand, many sports GK compilations mention that Feroz Shah Kotla in Delhi has relatively short boundaries, which makes it a high scoring venue and leads to its inclusion in such questions.

Step-by-Step Solution:
Step 1: Recall general reputations of the listed stadiums regarding size. Step 2: Recognise that Melbourne Cricket Ground is one of the largest playing areas in world cricket, so it cannot be the smallest. Step 3: Know that Sydney Cricket Ground is also fairly large and not usually singled out as having the shortest boundaries. Step 4: Consider Carisbrook Stadium, which is not a very common point of reference in typical exam GK notes about small boundaries. Step 5: Identify Feroz Shah Kotla in Delhi as the ground often described in exam material as having small boundaries that favour batsmen; choose it as the correct answer.

Verification / Alternative check:
Sports articles and commentary frequently describe Feroz Shah Kotla as a batsman friendly ground where boundaries are relatively close to the pitch, encouraging aggressive play. In contrast, Melbourne Cricket Ground is frequently described as having a very big outfield. This contrast helps verify that among the listed options, Feroz Shah Kotla is the best choice when a question refers to the smallest boundaries.

Why Other Options Are Wrong:
Carisbrook Stadium: While it has hosted cricket, it is not commonly highlighted in exam level GK as the smallest by boundary among leading venues, and it is more known for rugby history.
Melbourne Cricket Ground: Famous for being one of the largest cricket grounds in terms of playing area; clearly the opposite of what is being asked.
Sydney Cricket Stadium: A historic ground in Australia but not regarded as the smallest; it has a sizeable playing area compared to more compact subcontinental stadiums.

Common Pitfalls:
This question can be tricky if you think in terms of exact numerical measurements rather than standard exam references. Some learners may reason that a lesser known ground like Carisbrook must be smaller and choose it. The safer strategy in competitive exams is to rely on well known labels from GK guides, which clearly associate Feroz Shah Kotla with shorter boundaries and higher scoring matches.

Final Answer:
Among the given options, Feroz Shah Kotla is considered the stadium with the smallest boundaries.