Linear Algebra – Do lecturers write their own questions or do they usually find somewhere else?

I'm preparing for the final exam and want to reach the possible mark. However, I find that the previous work that the course has been taught by different people over the years does not help because the questions are drastically different.

If you are a lecturer, write your own questions? In particular, my exam deals with linear algebra and another with real analysis, so I'd like to prepare best. If someone knows books where I can find exam questions, that would be great.

Some questions about the computability of Turing machines

I'm learning for a test and have some important questions about the predictability of deterministic and non-deterministic Turing machines.

Remember, we have the subfunctions $ f, g, h, t: mathbb {N} rightarrow mathbb {N} $ With $ f $ Turing Machine is calculable, $ g $ unpredictable, $ h $ is not solvable and as long as $ t $ is while calculable. Are the following answers correct? And does something change if we had a non-deterministic TM?

There is no proof that words are alright ๐Ÿ™‚

  1. is $ f circ g $ Turing Machine calculable?
  2. is $ g circ f $ Turing Machine calculable?
  3. is $ t circ h $ While predictable?
  4. is $ h circ t $ While predictable?

My answers:

First, we know that Turing Machine = While Computability. (#)

  1. I would say that we do not know if TM is computable or not because there may be a TM that can handle the output of a non-TM computable function.
  2. I would say no, if that $ g $ it will not be TM predictable.

  3. and 4. Because of (#) it is the same as 1st and 2nd.

Could that be right? It is for a multiple-choice test and these questions are difficult.

Some questions about the solubility of Turing machines

I am learning for a test and have some important questions about the solvability of deterministic and non-deterministic Turing machines.

Remember, we have the subfunctions $ f, g, h, t: mathbb {N} rightarrow mathbb {N} $ With $ f $ Turing Machine is solvable, $ g $ not Turing Machine solvable, $ h $ is not solvable and as long as $ t $ As long as it is solvable. Are the following answers correct? And does something change if we had a non-deterministic TM?

There is no proof that words are alright ๐Ÿ™‚

  1. is $ f circ g $ Turing Machine solvable?
  2. is $ g circ f $ Turing Machine solvable?
  3. is $ t circ h $ Solange as long as possible?
  4. is $ h circ t $ Solange as long as possible?

My answers:

First, we know that Turing Machine = While-Solubility. (#)

  1. I would say that we do not know if TM is solvable or not because there may be a TM that can handle the output of a non-TM solvable function.
  2. I would say no, if that $ g $ it will not be solvable TM.

  3. and 4. Because of (#) it is the same as 1st and 2nd.

Could that be right? It is for a multiple-choice test and these questions are difficult.

apple id – Do I need to know the answers to my security questions when enabling two-factor authentication? (because I do not do it)

Current status, logged in to multiple devices on iCloud services, and more.

I was asked to use two-factor authentication, and found that this is a good idea. I also want to change the email address used so that I can log in and sort both using a browser on my laptop through the https://appleid.apple.com website. However, I was asked to answer the safety questions I had about 15 years ago when I was a younger Smart Alec (I'm still a Smart Alec, unfortunately only older, unfortunately).

If I know my best friend's name at school, that's about it My cat (I should have tried that), Lord Vader, or e1e7ec2204d600993d9c18a1ec675504,

Now set the password settings on my phone the questions: /

I know I can call Apple to reset it. What I want to know in the meantime (because I'm lazy so I do not get to it right away) is:

  • Will I be automatically logged off sooner or later because I did not answer the questions?
  • Can I set up two-factor authentication without having to answer the questions?
  • If I can, the questions are no longer asked? That would be a convenient way to solve the problem ๐Ÿ™‚
  • Bonus points (or would I, if I had the representative), can I use an authentication app (such as a TOTP app or Yubikey, etc.) instead of a phone number for two-factor authentication? The use of a phone number is in my opinion (and others) hardly better than no 2FA.

Scratch the bonus points, it was answered here, give the kudos in one voice.

So, in short, * Should I still press the 2FA button "turn on" in my phone?

Any help is greatly appreciated.

Terminology – Which category includes questions such as "Find given n points at 2D level …"?

Do not the following questions include a specific answer to the same set of problem types?

For n points in the 2D plane, find 4 or 5 or m subsets of points with a smaller total distance to each other than all other points.

Or

At n points in the 2D plane, count the number of triangles, squares, and so on that they form.

Or

Find a point closest to the number of points with n points in the 2D plane.

are the optimization questions? or is there another name for the above question type or can not there be a category for all question types?

Find if n points are given in the 2D plane $ cdots $

This question did not seem to be suitable for SO or software engineering, so I ask you here. If there is a better SE to ask this question, I delete that question and put it there (in reverse order).

Some questions about topology (int (A), iso (a), lim (A))

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Interview questions for a project

I have a project for my technical communication course in which I have to interview a specialist from my professional field. Would someone who was or is employed as a software developer / engineer answer these interview questions? If you answer, you can provide some basic background information about your area of โ€‹โ€‹expertise, such as: Your degree (eg Bachelor or Master), your years of experience, the jobs in which you had a software developer, etc. Full name and email address. Many thanks.

Question 1: What attracted you in the field of software development?

Question 2: Did your job as a software developer demand a certain level of education?

Question 3: Was your application required as a software developer?

Question 4: If you had any advice for future software developers, what would they be?

Q.5: What is the hardest part of your job?

Q.6: Are your working hours hectic or fairly flexible?

GoDaddy public whois questions | Web Hosting Talk

GoDaddy public whois questions | Web Hosting Talk

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var sidebar_align = & right; & # 39 ;;
var content_container_margin = parseInt (& # 39; 350px & # 39;);
var sidebar_width = parseInt (& # 39; 330px & # 39;);
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  1. GoDaddy public whois questions

    Someone who ever has problems with GoDaddy where you whois public / public with them, but other whois servers, eg. For example, domaintools, whois.net, and so on, make it private? It's about five days ago and other whois servers still need to reflect the public information. I also turned to GoDaddy, who unfortunately has a terrible support and of which they have no idea.


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gitlab – ZFS backup questions

I use ZFS on my Proxmox server to run GitLab in a VM. The GitLab hard drive is only 8 GB in size.

First, I do not understand why 218 GB are used if I only have 10 fuses, each with 1 or 2 GB. See below

# zfs list -r -t all rpool/path/to/my/vm
NAME                                          USED  AVAIL  REFER  MOUNTPOINT
rpool/path/to/my/vm                           218G  2.18T   192G  -
rpool/path/to/my/vm@incremental-backup-datetime          2.11G      -   191G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.11G      -   191G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.40G      -   192G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.71G      -   192G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.45G      -   192G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.13G      -   192G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.19G      -   192G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.04G      -   192G  -
rpool/path/to/my/vm@incremental-backup-datetime          1.53G      -   192G  -
rpool/path/to/my/vm@incremental-backup-datetime           405M      -   192G  -

Then, if I have a ls -l in you I get more files than in zfs list, Why can not I see all the files in mine? zfs list ? Why i only see the incremental backups in zfs list If there are 2 full backups in the directory (see ls -l)?

# ll -h
total 460G
-rw-r--r-- 1 root root 187G Nov  5 13:01 full_backup
-rw-r--r-- 1 root root 193G Nov 21 13:14 full_backup
-rw-r--r-- 1 root root 2.5G Oct 26 07:34 incremental_backup_xxx
-rw-r--r-- 1 root root 2.8G Oct 27 07:34 incremental_backup_xxx
-rw-r--r-- 1 root root 2.4G Oct 28 07:34 incremental_backup_xxx
-rw-r--r-- 1 root root 1.9G Oct 29 07:33 incremental_backup_xxx
-rw-r--r-- 1 root root 2.1G Oct 30 07:33 incremental_backup_xxx
-rw-r--r-- 1 root root 2.5G Oct 31 07:34 incremental_backup_xxx
-rw-r--r-- 1 root root 2.3G Nov  1 07:33 incremental_backup_xxx
-rw-r--r-- 1 root root 2.1G Nov  2 07:33 incremental_backup_xxx
-rw-r--r-- 1 root root 2.4G Nov  3 07:34 incremental_backup_xxx
-rw-r--r-- 1 root root 2.3G Nov  4 07:33 incremental_backup_xxx
...
(20 more incremental backups)

Why do I have 190 GB of backups if my VM hard drive is only 8 GB in size?
Many thanks

2016 – PowerBI Desktop and the Gateway – many questions!

Currently, I am running a 2016 SP Server Enterprise instance with a separate SQL server for our data. We want to use Power BI to replace our current reporting capabilities. I am new to this area because we previously worked in a 2010 environment with Crystal Reports. FTR – I am very familiar with the development of 2016, but have never used Power BI. Have some patience!

I downloaded the gateway on our SQL Server instance and then downloaded the Power BI Desktop version. Through the Power BI desktop version, I can retrieve lists and data directly from one of our Sharepoint website lists. What is the purpose of the gateway then? Is it just unnecessary, since I have the desktop version of Power BI?

The desktop version seems to me to be useful, but is also a bit confusing. Basically, we have financial data for which we want to create totals based on user-defined variables. For example, the user may only want to display financial information for a particular user, but possibly for three selected users. Does Power BI Reporting enable this type of reporting service? Or does each developer need to create each report, compile it, and then export it to the end user? Ultimately, I'm trying to figure out how an end user can select variables to report on without the developer having to intervene every time.

If all this is possible, does anyone have a good learning tool to keep up to date on how detailed the reporting function can be? I think most of the resources I found are simple reports. Aka: Import a list and let Power BI do that.

Thanks for your help.

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