C++ the answer given is wrong. Show me the correct answer. Question 7Assume you have a map of key/values pairs of (UINS->NETIDS). The keys are the UINS and the values are the NTEIDs. Also assume this map is named: studentsWhat happens, if you look up a UIN that is not currently stored in the map using the following code?string netid = students [234345456];O The UIN, 234345456, will be added to the map.O There will be an error.O The value stored in the string netid will be "null".O The map will be cleared of all of its valuesA Moving to the next question prevents changes to this answer.8°Frchhp

Map is a data structure which is used to store the data as key-value pairs

Assume you have a map of key/values pairs of (UINS->NETIDS). The keys are the UINS and the values are the NTEIDS. Also assume this map is named: stu What happens, if you look up a UIN that is not currently stored in the map using the following code?

Assume you have a map of key/values pairs of (UINS->NETIDS). The keys are the UINS and the values are the NTEIDS. Also assume this map is named: stu What happens, if you look up a UIN that is not currently stored in the map using the following code?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Map

A map is defined as the name of a higher-order function in most of the programming languages that applies a given function to each element of a functor, such as a list, and returns a list of results in the same order. A map is also called the collection of values based on a key, i.e. a key and value pair. A map has its own set of keys. Duplicate keys are not permitted in the Map, although duplicate values are permitted. Because a Map cannot be navigated, it must be converted to a Set using the keySet() or entrySet() methods. For key-value association mapping, such as dictionaries, maps are ideal.

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