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WGU D426 V2 EXAM LATEST COMPLETE REAL EXAM ACTUAL QUESTIONS AND WELL ELABORATED ANSWERS (100% CORRECT VERIFIED ANSWERS) LATEST UPDATED VERSION |GUARANTEED PASS A+ (BRAND NEW!!) $20.49   Add to cart

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WGU D426 V2 EXAM LATEST COMPLETE REAL EXAM ACTUAL QUESTIONS AND WELL ELABORATED ANSWERS (100% CORRECT VERIFIED ANSWERS) LATEST UPDATED VERSION |GUARANTEED PASS A+ (BRAND NEW!!)

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WGU D426 V2 EXAM LATEST COMPLETE REAL EXAM ACTUAL QUESTIONS AND WELL ELABORATED ANSWERS (100% CORRECT VERIFIED ANSWERS) LATEST UPDATED VERSION |GUARANTEED PASS A+ (BRAND NEW!!)

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  • October 31, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • WGU D426 V2
  • WGU D426 V2
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WGU D426 V2 EXAM LATEST 2024-2025 COMPLETE
REAL EXAM ACTUAL QUESTIONS AND WELL
ELABORATED ANSWERS (100% CORRECT VERIFIED
ANSWERS) LATEST UPDATED VERSION
|GUARANTEED PASS A+ (BRAND NEW!!)



Multi-tier consisting of web browsers and web servers communicating over the internet.

Answer- Web architecture




A software layer that emulates a complete, independent computing environment.

Answer- Virtual Machine




A database offered as a PaaS cloud service.

Answer- Cloud Database




A statement or proposition from which another statement is inferred.

Answer- Premise




Multiple processors managed by a single operating system instance.

Answer- Shared memory - share the same memory and storage media.

Shared storage - share storage media only.

Shared nothing

Parallel Computer

,Group of computers connected by LAN or WAN

Answer- Node




Group of nodes connected by a LAN, managed by separate operating system instances. Similar to a
parallel computer.

Answer- Cluster




Runs on a parallel computer or cluster

Answer- Parallel Database




Runs on multiple computers connected by a WAN

Answer- Distributed Database




Updates data on multiple nodes of a distributed database. Two-phase commit (nodes receive notice of
update, store update in log, send confirmation, then receive commit). Either all nodes or no nodes must
be successfully updated.

Answer- Distributed Transactions




Updates data on a single node of a distributed database. Databases that use this are called "eventually
consistent".

Answer- Local Transaction

, States that a distributed database cannot be Consistent, Available, and Petition-tolerant simutaneously.
Availability refers to individual nodes. Consistent database - confirms to all rules at all times. Network
partition - forms when a network error prevents nodes from communicating. Petition-tolerant -
database that continues to function when a network partition occurs.

Answer- CAP Theorem




Maintains two or more replicas on separate storage devices. Advantages: High availability, fast
concurrent reads, local reads. Disadvantages: Slow or inconsistent updates.

Answer- Replicated database



The relationship (within the relation) that describes how the value of one attribute may be used to find
the value of another attribute.

Answer- Functional Dependency



An attribute that can be used to find the value of another attribute in the relation.

Answer- Determinant




Value can be used to find the value of every other non-key attribute in the table. Unique and minimal.

Answer- Candidate Key




Define & manage database structures

Answer- DDL




Adding, deleting, and modifying data - Manipulates data stored in a database.

Answer- DML

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