What takes place whenever a command writes information to VA page 30? When are there times when it is more expedient to employ a TLB that is handled by software as opposed to one that is controlled by hardware?
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- A company has implemented a discretionary access control system for important documents and programs on a shared Linux server. Figure 1 shows the current implementation of the DAC system. It only applies to the directory /opt/company (you can ignore all files/directories that are not within this directory). The list of users is shown in the output from the firstls command; the members of each group is shown in the output of the tail command; the permissions are shown in the output of the second ls command. Assume the files are the objects, the subjects are the five users and there are four access rights: own, read, write and execute. Refer to Figure 4.2 and Table 2 in the textbook and complete the following subquestions I. Draw the Access Control Lists that illustrate the implementation on the Linux server; II. Draw the Capability Lists that illustrate the implementation on the Linux server; III. Build the Authorization Table that illustrate the implementation on the Linux server.What occurs if a directive is sent to VA page 30 without being approved? In the following circumstances, a software-managed TLB would be quicker than a hardware-managed TLB:What's the difference between privileged commands and user-level commands?
- If a command is not followed, what happens then? There are situations when a TLB might be slower than a software-managed one: hardware-managedIf a directive is submitted to VA page 30 without approval, what happens? In the following cases, a software-managed TLB is faster than a hardware-managed one:A program called Isu gives access to role accounts. The user's access rights are checked, and the user is required to enter her password. If access rules allow the change and the user's password is correct, Isu allows the change. Given that Mary uses Isu from her account, why does isu require her to enter her password? Name the principles involved, and why they require this.
- When attempting to access a resource, a user must supply a mutually agreed factor to the access control system. What is this phase of the process referred to? a. Impersonation b. Identification c. Authentication d. Authorisation e. AccountingIf a command is not carried out, what is recorded on VA page 30? A software-managed TLB would outperform a hardware-managed one in the following use cases:Identify the name of the hashed algorithm. testuser:$6$mTPGP3fUylBejUpW$vwETSwMoOhGAlEs.OkqxGBu5vb.ellok4tEU hVIRX9E5ukJVOEscZ;DFEF8JAE9mGqnSaMJ3uuGd9/SHrmUHo50 O SHA 512 O SHA 256 O SHA 128 O MD5 Based on the image below, what is the size of salt in bytes? testuser:$6$mTPGP3fUy1BejUpW$vwETSwMoOhGA1ES.0kqxGBu5vb.ellok4tEU hVIRX9E5ukJVOEscZ;DFEF8JAE9mGqnSaMJ3uuGd9/SHrmUHo50 O 8 Bytes O 10 Bytes O 14 Bytes 12 Bytes
- Consider the Octave script in Figure and answer the following questions: 1) What value of "count" would be printed on the command window by statement at line 12? 2) What is the maximum value of "a" printed on the command window when the statement at line no. 9 is executed? 3) How many times would the statements at line no. 6 and 7 execute? 4) What value of "n" would be printed on the command window by statement at line 11? 5) What is the minimum value of "a" printed on the command window when the statement at line no. 9 is executed?The cursor is placed on the initial letter of the word when the vim command x followed by p is used.q13- When attempting to access a resource, a user must supply a mutually agreed factor to the access control system. What is this phase of the process referred to? a. Authentication b. Impersonation c. Identification d. Authorisation e. Accounting