Practice using concessive clauses (although, despite, even though, while) in technical and professional IT contexts.
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Complete the sentence: 'Although the _____ scaled well, latency increased under heavy load.' Which word fits best?
'Although' introduces a concessive clause that contrasts two facts. 'Although the system scaled well, latency increased under heavy load' is the most natural and general contrast. 'Caching layer', 'load balancer', and 'service mesh' are more specific components — they can fit contextually but 'system' gives the clearest general contrast between scaling success and latency degradation.
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Complete the sentence: 'Despite _____ the server, the memory leak persisted.' Which form is grammatically correct?
'Despite' and 'in spite of' are prepositions — they must be followed by a noun or a gerund (verb+ing), never an infinitive. 'Despite restarting the server' is correct. 'Despite restart' is incomplete. 'Despite to restart' and 'despite restarted' are grammatically impossible. Compare: 'Despite the restart' (noun) or 'Despite restarting' (gerund) — both work. 'Although we restarted' uses a full clause with a conjunction.
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Complete the sentence: 'Even though we added more replicas, the _____ remained high.' Which word fits logically?
'Even though' signals a stronger contrast than 'although' — it emphasises that the result is surprising. Adding replicas is intended to improve performance, so the expected outcome would be reduced latency. 'The latency remained high' is the unexpected, contrasting result. 'Throughput remained high' would not be negative. 'Performance remained high' would suggest success. 'Capacity remained high' does not follow logically from adding replicas.
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A senior engineer writes: '_____ the API response time improved, the overall user experience did not change significantly.' Which concessive connector fits best?
'Although' is a subordinating conjunction that introduces a full clause (subject + verb). 'Although the API response time improved...' correctly links two contrasting full clauses. 'Despite' requires a noun or gerund, not a full clause — 'despite the API response time improved' is ungrammatical. 'Because' and 'therefore' express cause and effect, not contrast. In formal technical writing, 'although' is preferred over 'even though' for a neutral contrast.
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In formal technical writing, which sentence correctly uses 'while' to express contrast?
'While' has two meanings: simultaneous action ('while running') and contrast. In formal technical writing, 'while X, Y' is a standard way to present a trade-off or contrast between two ideas. 'While the monolith is easier to deploy, microservices offer better fault isolation' correctly presents an architectural trade-off. Option A uses 'while' for simultaneity, not contrast. Option C has a redundant 'but' — 'while' alone expresses the contrast. Option D is a run-on.