i need the answer quickly 12. Algorithm efficiency is typically a concern for,a. small problems onlyb. medium sized problems onlyb) large problems onlyd) problems of all sizes13. A(n).is a construct that can be defined to store a collection of data.a. data structureb) modulec) abstract data typed) method14. A linked list contains components, calledb)arrayswhich are linked to one another.a. nodesc) vectorsd) references15. Which of the following statements deletes the node to which cur points?a. prev->next = cur;b. cur->next = cur->next;c) cur->next = prev;d) prev->next = cur->next;16. Which of the following will be true when the pointer variable cur references the last node in alinear linked list?a. cur == NULLb. head == NULLc. cur->next == NULLd. head->next == NULL17. Which element is the head of the following list: John, Kate, Fred, Mark, Jon, Adam, Drew?c) Drewa. Johnb) Markd) Adam18. In the following list:John, Kate, Fred, Mark, Jon, Adam, Drewwhich element is the tail of the list?a. Johnb) Markc) Drewd) Adam19. A pointer variable contains theof a memory cell.b) addressa. Contentc)data type20. The C++ address-of operator isb) ->a. <«c) &d) *21. The members of a node structure can be accessed with theoperator.d) ata. []b) &c) ->

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12. Algorithm efficiency is typically a concern for a. small problems only b. medium sized problems only b) large problems only d) problems of all sizes

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

Computational Systems

The computation systems can be defined as the systems that are capable of solving a problem that includes calculations either mathematical or logical, and are able to produce the result as an output. For example, a simple calculator that is given a set of numbers and operators as input and produces the result as an output can be defined as a computational system. The above example is a simple illustration only, the computational systems range from simple devices to complex devices such as the systems that control the SpaceX companies, Starlink satellites which are being quite recently seen in the skies at many places globally.

Question

i need the answer quickly

12. Algorithm efficiency is typically a concern for,
a. small problems only
b. medium sized problems only
b) large problems only
d) problems of all sizes
13. A(n).
is a construct that can be defined to store a collection of data.
a. data structure
b) module
c) abstract data type
d) method
14. A linked list contains components, called
b)arrays
which are linked to one another.
a. nodes
c) vectors
d) references
15. Which of the following statements deletes the node to which cur points?
a. prev->next = cur;
b. cur->next = cur->next;
c) cur->next = prev;
d) prev->next = cur->next;
16. Which of the following will be true when the pointer variable cur references the last node in a
linear linked list?
a. cur == NULL
b. head == NULL
c. cur->next == NULL
d. head->next == NULL
17. Which element is the head of the following list: John, Kate, Fred, Mark, Jon, Adam, Drew?
c) Drew
a. John
b) Mark
d) Adam
18. In the following list:
John, Kate, Fred, Mark, Jon, Adam, Drew
which element is the tail of the list?
a. John
b) Mark
c) Drew
d) Adam
19. A pointer variable contains the
of a memory cell.
b) address
a. Content
c)data type
20. The C++ address-of operator is
b) ->
a. <«
c) &
d) *
21. The members of a node structure can be accessed with the
operator.
d) at
a. []
b) &
c) ->

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