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Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT PDF Download

Importance of Routes and Networks Diagram

Learning routes and network diagrams is beneficial for success in the CAT exam because it helps improve logical reasoning, analytical skills, problem-solving abilities, time management, visualization skills, and strategic thinking. These qualities are highly valued in the competitive exam setting. Consistent practice and a good grasp of these concepts can greatly boost a candidate's performance in different sections of the CAT exam.

Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT


What are Routes and Network Diagrams?

 Routes refer to specific paths or ways to reach a destination or achieve a goal whereas Network diagrams are visual representations that illustrate how different elements or components are connected and interact with each other. In simpler terms, they are like maps that show the relationships and connections between various parts of a system or process. 

Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT

Solved Examples 

Q 1: What is the total number of ways to reach A to B in the network given?


Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT

A. 12
B. 16
C. 20
D. 22
Answer: B
Solution: There are four ways to go from A to the first level of nodes. Each of these 4 nodes in turn leads to two more ways to go to the second level nodes. Each of the second-level nodes leads to two more ways to go to the third-level nodes. And from here we have only one way each to go to B.
Hence by the fundamental principle of counting, the total number of ways = 4 x 2 x 2 x 1 = 16 ways.





Q 2: The quantity moved from Avanti to Vidisha isDirection: The following sketch shows the pipelines carrying material from one location to another. Each location has a demand for material. The demand at Vaishali is 400, at Jyotishmati, is 400, at Panchal is 700, and at Vidisha is 200. Each arrow indicates the direction of material flow through the pipeline. The flow from Vaishali to Jyotishmati is 300. The quantity of material flow is such that the demands at all these locations are exactly met. The capacity of each pipeline is 1,000.





Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT


A. 200
B. 800
C. 700
D. 1000

Answer: D

Solution: 

Since the flow from Vaishali to Jyotishmati is 300 as demand is 400 the deficient 100 would be met by flow from Vidisha. Again the demand of 700 in Panchal is to be met by flow from Jyotishmati which can get it from Vidisha.

Thus, the quantity moved from Avanti to Vidisha is 200 + 100 + 700 = 1000

Previous Year Questions: Routes and Network

Read the passage below and answer the questions that follow. 
Export cargo of a trader can go through seven cities P, Q, R, S, T, U and V. The following cities have a two way connection i.e., Cargo can move in both directions between them; S and U, P and Q, Q and R, V and T, R and T, V and U. Cargo can move only in one direction from U to Q.
Q1: If the trader wants the cargo to move from City S to City T then excluding cities S and T, what is the minimum number of cities that the cargo has to cross in transit?
(a)4
(b)3
(c)2
(d)5
Ans:
(c)
Sol:
Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT
From the figure, Excluding cities S and T cargo can go from city S to city T in 2 ways i.e S-U-Q-R-T and S-U-V-T.
The shortest path from S to T is S-U-V-T.
Therefore the minimum number of cities that the cargo has to cross in transit is 2.


Q2: If the trader wants the cargo to go to City U from City P through the longest route, how many cities will he be required to cross (excluding cities P and U)?
(a)2
(b)4
(c)3
(d)5
Ans: 
(b)
Sol:
Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT
From the figure, Cargo can go from city P to city U in only one possible way i.e. P-Q-R-T-V-U.
Going through this path, the cargo will have to pass through 4 cities.
Hence, option (b).


Q3: To move cargo from City P to City U, which of the following statements will minimise the number of cities to be crossed in transit?
(a) Connect cities U to R with a two way connection
(b) Connect cities P to S with a one way connection from cities S to P
(c) Connect cities U to Q with a two way connection
(d) Connect cities R to V with a two way connection
Ans:
(c)
Sol: Consider option A. The path is P-Q-R-U. We have to cross 2 intermediate cities in it.
Consider option B. If we connect cities from P to S with a one way connection from cities S to P. The path formed will be P-Q-R-T-V-U.
It becomes a longer path than option A.
Using option C, the path formed is the shortest path. The path formed is P-Q-U. This smaller than that in option A.
Consider option D. The path formed using option D is longer compared to the path formed using option C. Hence options A, B, and D are eliminated.
Hence, option (c).

The document Routes & Network Diagrams | Logical Reasoning (LR) and Data Interpretation (DI) - CAT is a part of the CAT Course Logical Reasoning (LR) and Data Interpretation (DI).
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FAQs on Routes & Network Diagrams - Logical Reasoning (LR) and Data Interpretation (DI) - CAT

1. What are routes and network diagrams?
Routes refer to the paths or directions that are followed to reach a particular destination or to connect different points within a network. Network diagrams, on the other hand, are visual representations of a network infrastructure, showing the connections between various devices and components.
2. Why are routes and network diagrams important?
Routes and network diagrams are important because they provide a clear understanding of how a network is structured and how data flows within it. They help in the efficient management and troubleshooting of network issues by providing a visual representation of the network's topology and connectivity.
3. How are routes and network diagrams created?
Routes are typically created through the use of routing protocols, which determine the best path for data to travel from one network device to another. Network diagrams can be created using various software tools that allow for the visualization and documentation of network components, connections, and configurations.
4. What are the benefits of using network diagrams?
Network diagrams offer several benefits, including: - Improved troubleshooting: By providing a visual representation of the network, network diagrams make it easier to identify and resolve network issues. - Enhanced planning: Network diagrams help in planning network upgrades, expansions, and changes by visualizing the impact on the existing infrastructure. - Effective communication: Network diagrams facilitate clear communication between network administrators, engineers, and other stakeholders by providing a common visual reference point. - Documentation: Network diagrams serve as documentation of the network's layout, configurations, and connections, making it easier to understand and manage the network. - Compliance and security: Network diagrams aid in ensuring compliance with industry regulations and security best practices by identifying potential vulnerabilities and areas of improvement.
5. Can network diagrams be used in other fields apart from IT?
Yes, network diagrams can be used in various fields apart from IT. They can be utilized in telecommunications, engineering, project management, and even in social sciences to represent relationships and connections between different entities or components.
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