Question 4Which of the following statements are CORRECT? There can be any number ofcorrect answers.Content of an access matrix defines a policyIn a given access matrix, the owner of the file also have all other privilegesMany cells of the access matrix are emptyWhen capability lists are used, objects become domains

Access Matrix is a security model of insurance state in PC framework. It is addressed as a grid.…

Answered: Vhich of the following statements are…

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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Compliant/Noncompliant Solutions The following code segment was provided in Secure Coding Guidelines for Java SE: void readData() throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader( new FileInputStream("file"))); // Read from the file String data = br.readLine();} The code is presented as a noncompliant coding example. For this assignment, identify two compliant solutions that can be utilized to ensure the protection of sensitive data. Provide a detailed explanation of factors, which influence noncompliant code and specifically how your solutions are now compliant. Your explanation should be 2-3 pages in length. Submit the following components: Word document with appropriate program analysis for your compliant solutions and source code in the Word file. Submit your .java source code file(s). If more than 1 file, submit a zip file.
16. Using -1 index in Tuple is to: O Return last item O All answers are false O Return first item O Return second item 17. class student has attribute name1, to access this attribute using object s1 from out side this class:
Implement a Java application that connects to the database. The application employs a the following class inheritance hierarchy: С. Person; BrotherInLaw is_a Person; Class Person: Class Persons is the hierarchy's superclass and inherits the Java class Object. A Person's object is defined by the attributes of the Persons entity set in family E-R diagram. The class includes appropriate constructors and methods, including methods that perform the following operations: setPerson – inserts a person in the database; b. а. getXPerson – returns the X attribute of a person; and toString overrides the method toString in Object. с. returns the Person's object description as a String. The method Class BrotherInLaw: Class Persons BrotherInLaw inherits class Person, includes appropriate constructors and methods, including methods that perform the following operations: - executes the queries and return a list of the persons who are the executeQuery brothers-in-law of a given person; and b. а. print –…
Assuming all necessary accessor functions are defined for a class, the output stream operator (<<) can be overloaded to output to a stream for this class as O a global (i.e., non-member) friend or global non-friend function, but not a member function O a member function only O a global (i.e., non-member) friend function only O a global (i.e., non-member) non-friend function only O a member function or a global (i.e., non-member) friend function, but not a global non-friend function O either a member function, or a global (i.e., non-member) friend function, or a global non-friend function
An animal shelter, which holds only dogs and cats, operates on a strictly"first in, firstout" basis. People must adopt either the "oldest" (based on arrival time) of all animals at the shelter,or they can select whether they would prefer a dog or a cat (and will receive the oldest animal ofthat type). They cannot select which specific animal they would like. Create the data structures tomaintain this system and implement operations such as enqueue, dequeueAny, dequeueDog,and dequeueCat. You may use the built in Linkedlist data structure.
Addressing Table VLANs and Port Assignments Table 15 - Servers 30 - PCs 45 - Native 60 - Management C. Video class inherits the class Disk. It has as attributes two Strings director and description. This class has: ● A constructor that initializes all attributes. ● A toString() method that overrides the toString() method in the Disk class by adding the data fields of the Video class in the same form. Device HQ B1 B2 HQ-Sw Staff Interface IP Address GO/0.15 G0/0.30 GO/0.45 G0/0.60 S0/0/0 SO/0/1 SO/1/0 GO/O S0/0/0 SO/0/1 GO/O SO/0/0 SO/0/1 VLAN 60 NIC VLAN Number - Name 192.168.45.65 192.168.45.129 192.168.45.17 192.168.45.33 192.168.45.1 192.168.45.10 128.107.50.66 192.168.45.193 192.168.45.5 192.168.45.2 192.168.45.209 192.168.45.9 192.168.45.6 192.168.45.34 DHCP Assigned Subnet Mask 255.255.255.192 255.255.255.192 255.255.255.240 255.255.255.240 255.255.255.252 255.255.255.252 255.255.255.252 255.255.255.240 255.255.255.252 255.255.255.252 255.255.255.240 255.255.255.252…
Write a Python program that connects to a sqlite database. 1- Design a program that keeps user information of a system withPython. The program you have designed must perform the operations ofviewing user information, adding new users and deleting users.User variables and actions must be defined in the classstructure.2- Keep user data in a database. Program should be able to connectto the database, and user additions and deletions should alsobe viewed on the database.
Create a class Department with attributes DName, DID, a dynamic listDTeachers of type string.Write accessors and mutators for all data membersand show function to show all data members.Create nullaryand parameterized constructors to initialize the data members.Also write a copy constructor for Department class.In main() create a dynamic array of departments, Use loop to create four objects in the dynamic array. All the even indexed objects should be created with nullary constructors and thencall the accessors and mutators to initializethe objects while, all the odd indexed objects should be initialized using parameterized constructors. Create four copy objects from array using copy constructors.Call the show function to show the four objects.

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