Describe how technology has changed the following areas in our everyday lives:
BankingShoppingTravel LearningManufacturing
What will be an ideal response?
Banking: Today's bank accounts are now associated with ATMs, which provide easy access for us to deposit, manage, and withdraw money. Shopping: Using point-of-sale systems, purchases are scanned and managed in the store's database. Accounting, inventory, and management are done electronically. E-commerce sites allow us to purchase and sell items on the Web, broadening the audience of potential consumers. Travel: Through global positioning systems, help is just a touch away. From directions and maps to reporting an accident, this system can send signals of our location to the receiver at the push of a button. Learning: Textbooks can now be purchased in electronic format. Learning management systems such as Blackboard can house all the elements of a course and provide online access. Manufacturing: Through robotics, businesses can now expand their production capabilities and performance, resulting in more profit. We are able to send robots into dangerous areas to collect information and data.
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In the following search function for a linked list (using the Node and NodePtr as defined in the text), why is there code to check if here is NULL?
NodePtr search(NodePtr head, int target) { nodePtr here = head; if(here == NULL) { return NULL; } else { while( here->data != target && here->link != NULL) { here = here->link; } if(here->data == target) { return here; } else { return NULL; } } } a. the list may be empty b. the list may be full c. there is no reason for that code to be there d. A and B
Polymorphism is implemented via:
a. Member functions. b. virtual functions and dynamic binding. c. inline functions. d. Non-virtual functions.
Case-based Critical Thinking QuestionsCase 14-1Betty Trooper owns and operates a realty company. She has provided you with properties.xml, which is a file that contains a list of properties enrolled in the multiple listing database. She has created three different versions of a schema for the properties vocabulary and needs help in choosing the most appropriate schema design for her needs. Betty wants to review the Russian Doll design. She understands that there is only one global element with everything else nested inside of it. She also knows that a Russian Doll design is much more compact than a Flat Catalog, but _______
A. multiple levels of nested elements can be confusing B. it can be more difficult to debug C. it is easier to debug D. both a and b need to be considered
Compare IPv4 with IPv6.
What will be an ideal response?