---
title: "Link analysis in web vs cloud"
subject: "Information System"
chapter: 7
key: "semester_8/information_system:link-analysis-web-vs-cloud"
source: https://www.bctengineer.com/q/semester_8/information_system/link-analysis-web-vs-cloud
site: BCT Engineering
---

# Link analysis in web vs cloud

Information System · Chapter 7: Web based information system and navigation

- Asked in: 2073 Bhadra, 4 marks
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_8/information_system/link-analysis-web-vs-cloud
- Whole chapter: https://www.bctengineer.com/md/semester_8/information_system/chapter-7

## Question

Compare Link analysis in web Vs Link analysis in cloud.

## Short answer

Web link analysis uses hyperlinks between pages for ranking and community detection; cloud link analysis processes large graphs on distributed platforms like MapReduce, or analyzes links among cloud resources. Cloud offers on-demand scalability and lower cost, but introduces privacy and bandwidth concerns.

## Answer

**Link analysis** studies relationships (links) between entities to find importance and structure. On the **web** the entities are pages and hyperlinks; in the **cloud** the same graph techniques run on cloud platforms, or are applied to links among cloud resources, users and data.

| Basis | Link analysis in the web | Link analysis in the cloud |
|---|---|---|
| **Data** | Hyperlinks between web pages | Large link/graph data (web graph, social graph, call or access links) stored and processed on cloud, or links between cloud services, users and data |
| **Purpose** | Rank pages, find communities, detect spam | Run the same analysis at scale; also trace dependencies, detect fraud or insider threats and track data flow |
| **Scale** | Limited by one organisation's machines, usually crawled data | Scales on demand using many virtual machines; works on very large graphs |
| **Processing** | A centralised or cluster system | Distributed processing (MapReduce, Hadoop, Spark/Pregel) in a pay-per-use model |
| **Cost** | High capital cost for own infrastructure | Pay as you use, less cost for occasional jobs |
| **Examples** | PageRank, HITS | PageRank computed with MapReduce on cloud; link analysis of cloud logs for security |
| **Issues** | Link spam, freshness | Data security and privacy, network bandwidth, vendor lock-in |

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. How is link analysis processed in the cloud?
   A. Using distributed processing such as MapReduce, Hadoop or Spark on many virtual machines
   B. On a single personal computer
   C. By hand on paper
   D. Using only one fixed server
   Answer: A. Cloud allows scaling on demand. (Key point: Cloud processing)

2. How do costs differ?
   A. Cloud always needs big capital cost
   B. Both are free
   C. Web approach is pay-per-use
   D. Cloud is pay-as-you-use, while the web approach needs high capital cost for own infrastructure
   Answer: D. Cloud suits occasional jobs because you pay only for use. (Key point: Cost model)

3. What is the purpose of link analysis on the web?
   A. To store backups
   B. To rent virtual machines
   C. To rank pages, find communities and detect spam
   D. To bill users
   Answer: C. These are the main web link analysis uses. (Key point: Web purpose)

4. Which is a cloud-specific issue?
   A. Link spam only
   B. Data security and privacy, bandwidth and vendor lock-in
   C. Freshness of pages only
   D. Page titles
   Answer: B. Link spam and freshness are web issues. (Key point: Cloud issues)

## Related in Information System

- [Link analysis for the web](https://www.bctengineer.com/question.md?key=semester_8%2Finformation_system%3Alink-analysis-web-environment) — Information System, chapter 7, asked 4×
- [Link analysis and search engine architecture](https://www.bctengineer.com/question.md?key=semester_8%2Finformation_system%3Alink-analysis-search-engine-architecture) — Information System, chapter 7
- [Text mining vs web usage mining](https://www.bctengineer.com/question.md?key=semester_8%2Finformation_system%3Atext-mining-vs-web-usage-mining) — Information System, chapter 7

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- [OFC block diagram vs microwave link](https://www.bctengineer.com/question.md?key=semester_6%2Fpropagation_and_antenna%3Aofc-block-diagram-vs-microwave) — Propagation and Antenna, chapter 6
- [Mesh analysis: find Vs for 6.76 A in 3 Ω](https://www.bctengineer.com/question.md?key=semester_3%2Felectrical_circuit_theory%3Amesh-analysis-find-vs-6-76a) — Electrical Circuit Theory, chapter 1
- [In-channel vs CCS; SS7 link types](https://www.bctengineer.com/question.md?key=semester_8%2Ftelecommunications%3Ainchannel-ccs-ss7-links) — Telecommunications, chapter 5