TCS Placement: Sample Questions 212 - 214 of 502
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Question 212
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Fill the missing term of the series.
9, 10, 11,13, 15, ________, 21,28
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- Divide the given series into two parts of odd and even term series.
- Odd term series: 9, 11,15, 21, …
- Even term series: 10,13, ________, 28, …
- The term which we want to find will follow even term series.
- Here, first term and second term of the series are 10 and 13 respectively. Second term is incremented by 3 numbers, i.e.. Difference between them is + 3.
- Third term needs to find out.
- Fourth term of the series is 28.
- Here, difference between two consecutive terms are increasing in order of + 3, + 6, + 9, + 12, …
- So, Difference between second and third term will be + 6.
- So, missing term will be
Question 213
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What are the major data structures used in the following areas: RDBMS, Network data model and Hierarchical data model.
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- RDBMS = Array (Array of structures)
- Network data model = Graph
- Hierarchical data model = Trees
Question 214
Explanation
- A node connected to two or more networks is called a router or gateway.
- It forwards message from one network to another.
- A gateway in a computer network is a key stopping point for data on its way to or from other networks.
- Gateway routes traffic from a workstation to the outside network that is serving up the web pages.
- For example, for internet connection at home gateway is the Internet Service Provider.