Pivotal Cloud Foundry (PCF) Developer Certification Exam Review Questions Set 7 – Application Security Groups (ASGs)

Pivotal Cloud Foundry Developer Certification Review Questions Set 7 - Application Security Groups

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NOTES: For other review question sets and resources, you may want to check Pivotal Cloud Foundry (PCF) Developer Certification Test Resources page.

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions and Answers Set 6 – Manifests

Pivotal Cloud Foundry Developer Certification Exam Review Questions Set 6 - Manifests

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NOTES: For other review question sets and resources, you may want to check Pivotal Cloud Foundry (PCF) Developer Certification Test Resources page.

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions and Answers Set 5 – Managed and User-Provided Services

Pivotal Cloud Foundry (PCF) Certification Exam Review Q&A Set 5 - Managed and User-Provided Services

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NOTES: For other review question sets and resources, you may want to check Pivotal Cloud Foundry (PCF) Developer Certification Test Resources page.

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions and Answers Set 4 – Logging, Scaling and High Availability

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions Set 4 - Logging, Scaling and HA

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NOTES: For other review question sets and resources, you may want to check Pivotal Cloud Foundry (PCF) Developer Certification Test Resources page.

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions and Answers Set 3 – Cloud Foundry Architecture

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions Set 3 - Cloud Foundry Architecture

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NOTES: For other review question sets and resources, you may want to check Pivotal Cloud Foundry (PCF) Developer Certification Test Resources page.

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions and Answers Set 2 – cf Command Line

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions Set 2 - cf Command Line

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Pivotal Cloud Foundry (PCF) Certification Exam Review Questions and Answers Set 1 – Overview

Pivotal Cloud Foundry (PCF) Certification Exam Review Questions Set 1- Overview

Practice first with these questions before taking the Pivotal Cloud Foundry (PCF) Certification Exam!
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Top 6 YouTube Channel Bahasa Indonesia Untuk Belajar Programming

Peran dan perkembangan teknologi informasi (TI) di dunia tidak akan pernah berhenti, bahkan boleh dibilang akan semakin cepat. Banyak bahasa-bahasa pemrograman, framework-framework, dan konsep-konsep baru muncul setiap saat.

Hal ini menjadi tantangan bagi kita yang belajar ataupun bekerja di bidang TI untuk mengikuti perkembangan-perkembangan terbaru. Apalagi untuk mempelajarinya agar tidak ketinggalan jaman dan tetap memiliki kemampuan yang relevan dengan teknologi yg ada.

Ada banyak cara untuk tetap belajar mengikuti teknologi-teknologi terkini, salah satunya adalah melalui video tutorial di Youtube.

Terima kasih untuk pemilik channel-channel YouTube berikut ini, belajar programming untuk kita yg berbahasa Indonesia menjadi lebih mudah. Continue reading “Top 6 YouTube Channel Bahasa Indonesia Untuk Belajar Programming”

Perkenalan BDD (Behavior Driven Development)

oleh: Dan North

(disadur dari “Introducing BDD”)

Saya dulu mempunyai masalah. Sementara menggunakan dan mengajar praktek-praktek Agile seperti test-driven development (TDD) pada proyek-proyek di lingkungan yang berbeda-beda, saya selalu menjumpai kebingungan dan kesalahpahaman. Para programmer selalu ingin mengetahui mulai dari mana, apa yg ditest dan apa yg tidak, seberapa banyak yg ditest sekaligus, test-testnya harus diberi nama apa, dan bagaimana untuk mengerti mengapa sebuah test gagal.

Semakin dalam saya memasuki TDD, semakin saya merasa bahwa perjalanan saya semakin bukan proses “wax-on, wax-off” (dari Karate Kid) untuk menjadi ahli tapi seperti perjalanan ke gang gelap. Saya ingat pernah berpikir “Seandainya seseorang memberi tahu saya tentang itu!” lebih sering dibanding “Wow, sebuah pintu terbuka.” Saya memutuskan bahwa pasti bisa menyajikan TDD dalam sebuah cara yang langsung ke hal-hal yang bagus dan menghindari semua perangkap-perangkapnya. Continue reading “Perkenalan BDD (Behavior Driven Development)”

Answers to Candidate Key hard questions

Hi,
Thanks for visiting my blog.

Here are the answers for the two hard finding candidate keys examples:

*Answer
————-
1. ABCDEF
DF -> C
BC -> F
E -> A
ABC -> E

Steps:
1. Find the attributes that are not on both side
> –
2. Find the attributes that are only on the right side
> –
3. Find the attributes that are only on the left side
> BD
4. Find the attributes that on both sides
> ACEF

5. Find the closures of core attributes in step 3
> The closures of BD is only BD, it’s not all attributes

6. Find the closures of core attributes + one exterior attributes at a time (attributes on step 4).
> BDA – BDA
> BDC – BDCF
> BDE – BDEA
> BDF – BDFC
> none of the closures is the whole relation

7. Find the closures of core attributes + two exterior attributes at a time
> BDAC – BDACEF (the closure is the whole relation)
> BDAE – BDAE
> BDAF – BDAFCE (the closures is the whole relation)
> BDCE – BDCEAF (the closures is the whole relation)
> BDCF – BDCF
> BDEF – BDEFCA (the closures is the whole relation)

8. So the candidate keys are BDAC, BDAF, BDCE, and BDEF.

2.
ABCDE
A -> BC
CD -> E
B -> D
E -> A

Steps:
1. Find the attributes that are not on both side
> –
2. Find the attributes that are only on the right side
> –
3. Find the attributes that are only on the left side
> –
4. Find the attributes that on both sides
> ABCDE

*This is a special case, there is no core attributes, all attributes are on both sides, so all attributes are exterior. In this case we will try find the closures of one attribute at a time.

A – ABCDE (the closures is the whole relation)
B – BD
C – C
D – D
E – EABCD (the closures is the whole relation)

So A and E are candidate keys. Let’s try more combination without A and E.

BC – BCDEA (the closures is the whole relation)
BD – BD
CD – CDEAB (the closures is the whole relation)

So BC and CD are also candidate keys. So the candidate keys are A, E, BC, and CD.

Best regards,

djito