Discuss issues related to security that affect the design and operation of information systems

Question 1 What is the name of a general control technique used to ensure that entered data is correct?

a.Data validation control

b.access control

c.Data acceptance control

d.Data completeness control Question

2 Each class on a class diagram is represented by a(n) ____ in a relational database.

a.attribute

b.row

c.table

d.column

Question 3 Which of the following is NOT a component or function of a typical database management system (DBMS)?

a.Low-level process management

b.End-user query processor

c.Application program interface

d.Administrative interface

Question 4 Every table in a relational database must have a foreign key.

a.True

b.false

Question 5 One-to-many and many-to-many relationships are both represented by foreign keys in a relational database.

a.True

b.False

Question 6 In a relational database, a row can be referred to as a(n) ____.

a.field

b.tuple

c.attribute

d.relation

Question 7 The primary purpose of integrity controls is to track external activity.

a.True

b. False

Question 8 The three objectives of integrity controls include the following, except:

a.Have correct business transactions

b.Record and process these transactions correctly

c.provide a recovery mechanism

d.Protect all assets of the organization

Question 9 A ________________is the information about the structure of the database, including the tables, the attributes, the keys, etc.

a.primary key

b.foreign key

c.RDBMS

d.schema

Question 10 A ____ database server architecture stores different parts of a database on different servers.

a..single

b.replicated

c.partitioned

d.cloud-based

A statistical program is recommended An article reported on various chemical properties of natural and artificial soil. Here are observations on i'm cation exchange capacity (CEC, in mec/100 g) and F - specific surface area (554, in m /g) of 20 natural solly. 67 121 135 101 78 89 63 57 117 418 76 125 75 71 103 104, 76 96 58 109 176 323 460 287 205 210 295 161 314 265 236 355 240 133 431 306 132 269 158 303 Minitab gave the following output in response to a request for n correlation of x and y = 0.853 Normal probability pilots of x and y are quite straight. (a) Carry out a best of hypotheses to see If there is a positive linear association in the population from which the sample data was selected. State the appropriate null and alternative hypotheses. Calculate the test statistic and determine the Pivalue. (Round your test statistic to two decimal places and your A-valve to three decimal places. ] Avalue -3. Consider a gas in contact with a solid surface. The molecules of the gas can absorb on specific sites on the surface. There are M such sites on the surface. Each site has an energy that we take to be zero if the site is empty, 6, if the site is singly occupied, and 62 if the site is doubly occupied. The doubly occupied site is g fold degenerate. The surface is bathed by a gas at fixed temperature T and chemical potential p. a. Find the grand partition sum of the system of M sites. b. Use the grand potential to compute the average number of absorbed molecules on each siteQuestion 8 (5 points) Two technicians measured the surface finish of a metal part, obtaining the data presented in the table below. Assume that the measurements are normally distributed. The to test statistic was calculated for these measurements resulting in a value of to = 0.11. Using of = 0.05 and assuming equal variances, the following test hypothesis was tested for the mean surface finish measurements made by the two technicians: Hot #1 - /2 = 0. Hi: /1 - /2 0 Based on the above information, which of the following statement(s) are correct? Technician 1 Technician 2 1.45 1.54 1.37 1.41 1.21 1.56 1.54 1.37 1.48 1.20 1.29 1.31 1.34 1.27 1.35 Do not reject the Ho and conclude that there is sufficient statistical evidence of a difference between measurements obtained by the two technicians The degree of freedom of the calculated test statistic is N-1 = 6. The mean surface finish measurements by the two technicians are not statistically equal. If the null hypothesis should be rejected, we would be concerned that the technicians obtain different measurements. It does not matter which technician measures parts; the readings will be statistically the sameA statistical program is recommended. An article reported on various chemical properties of natural and artificial soils. Here are observations on * = cation exchange capacity (CEC, in meq/100 9) and y = specific surface area (SSA, in m /g) of 20 natural soils. * 67 121 135 101 76 89 63 57 117 118 76 125 75 71 133 104 76 96 58 109 176 324 460 287 205 210 295 161 314 265 236 355 240 133 431 306 132 269 158 303 Minitab gave the following output in response to a request for r. correlation of x and y = 0. 854 Normal probability plots of x and y are quite straight. (a) Carry out a test of hypotheses to see if there is a positive linear association in the population from which the sample data was selected. State the appropriate null and alternative hypotheses. OH:p 0 Hip=0 O Hip = 0 Hip>0 O Hip = 0 O Hip = 0 Hip