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EITCA Academy

EITCA Academy

The European Information Technologies Certification Institute - EITCI ASBL

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EITCI Institute ASBL

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Questions and answers designated by tag: Fault Tolerance

Why is decoherence primarily responsible for problems in implementing scalable quantum computers?

Friday, 03 May 2024 by dkarayiannakis

Decoherence plays a significant role in hindering the implementation of scalable quantum computers by causing issues with preserving controlled quantum states. Quantum computers leverage quantum bits or qubits, which can exist in superposition states, allowing for parallel computations. However, maintaining this delicate quantum state is challenging due to environmental interactions leading to decoherence. Decoherence refers

  • Published in Quantum Information, EITC/QI/QIF Quantum Information Fundamentals, Summary, Summary
Tagged under: Decoherence, Entanglement, Fault Tolerance, Quantum Computing, Quantum Information

So the statement of "To build a Windows Domain at least 2 Domain controllers are needed." implies the best pratice?

Friday, 15 December 2023 by Acácio Pereira Oliveira

The statement that "To build a Windows Domain, at least 2 Domain controllers are needed" implies a best practice in the field of Windows Server Administration. This practice is based on several factors that contribute to the security, availability, and fault tolerance of the Windows Domain environment. A Windows Domain is a collection of computers

  • Published in Cybersecurity, EITC/IS/WSA Windows Server Administration, Deploying Windows, Introduction to Windows Domain and Domain Controller
Tagged under: Active Directory, Cybersecurity, Domain Controller, Fault Tolerance, High Availability, Windows Domain

To build a Domain only 1 DC is needed since W2k, at least 2 are needed is based in best pratice framework defined that must consider failure/fault tolerance or factors based in balancing and iopics of CPU/memory per object thru the enterprise?

Friday, 15 December 2023 by Acácio Pereira Oliveira

To build a Windows domain, the number of domain controllers (DCs) required depends on various factors, including best practices for fault tolerance and load balancing. While it is true that since Windows 2000, a domain can be built with just one DC, it is generally recommended to have at least two DCs for a more

  • Published in Cybersecurity, EITC/IS/WSA Windows Server Administration, Deploying Windows, Introduction to Windows Domain and Domain Controller
Tagged under: Cybersecurity, Domain Controller, Fault Tolerance, High Availability, Load Balancing, Windows Domain

Why would you choose to use a stub zone instead of a secondary zone in DNS?

Saturday, 05 August 2023 by EITCA Academy

A stub zone is a type of DNS zone that contains only a subset of the resource records (RRs) found in the authoritative zone. It serves as a pointer to the authoritative DNS servers for the zone. In contrast, a secondary zone is a complete copy of the authoritative zone. When deciding whether to use

  • Published in Cybersecurity, EITC/IS/WSA Windows Server Administration, Configuring DHCP and DNS Zones in Windows Server, DNS Zones in Windows Server, Examination review
Tagged under: Cybersecurity, DNS, Fault Tolerance, Network Traffic, Secondary Zone, Security, Stub Zone

How does having multiple domain controllers provide fault tolerance in a Windows domain?

Friday, 04 August 2023 by EITCA Academy

Having multiple domain controllers in a Windows domain provides fault tolerance by distributing the workload and ensuring high availability of domain services. A domain controller (DC) is a server that manages security authentication requests, enforces security policies, and maintains the directory database for a Windows domain. By having multiple domain controllers, the domain can continue

  • Published in Cybersecurity, EITC/IS/WSA Windows Server Administration, Deploying Windows, Introduction to Windows Domain and Domain Controller, Examination review
Tagged under: Cybersecurity, Domain Controller, Fault Tolerance, Load Balancing, Redundancy, Windows Domain

What are the potential performance overheads associated with Google's security architecture, and how do they impact system performance?

Friday, 04 August 2023 by EITCA Academy

Google's security architecture is designed to protect its computer systems from various threats and ensure the confidentiality, integrity, and availability of its services and data. While it provides robust security measures, there are potential performance overheads associated with this architecture that can impact system performance. In this answer, we will explore these potential overheads and

  • Published in Cybersecurity, EITC/IS/CSSF Computer Systems Security Fundamentals, Architecture, Security architecture, Examination review
Tagged under: Authentication, Authorization, Cybersecurity, DDoS Attacks, Encryption, Fault Tolerance, Google, Intrusion Detection, Performance Overheads, Redundancy, Security Architecture

How does isolation contribute to the security of computer systems in the context of security architecture?

Friday, 04 August 2023 by EITCA Academy

Isolation plays a important role in enhancing the security of computer systems within the context of security architecture. It is a fundamental principle that involves separating different components or entities within a system to prevent unauthorized access, limit the impact of potential security breaches, and protect sensitive information. In this answer, we will consider the

  • Published in Cybersecurity, EITC/IS/CSSF Computer Systems Security Fundamentals, Architecture, Security architecture, Examination review
Tagged under: Access Controls, Containment, Cybersecurity, Defense-in-Depth, Fault Tolerance, Isolation, Least Privilege, Resilience, Security Architecture, Sensitive Information

What are the benefits of using Container-Optimized OS for container workloads in terms of scalability, spending optimization, and reliability?

Thursday, 03 August 2023 by EITCA Academy

Container-Optimized OS (COS) is a specialized operating system designed by Google for running container workloads in the cloud. It offers several benefits in terms of scalability, spending optimization, and reliability, making it an excellent choice for organizations looking to leverage containers in their cloud computing infrastructure. Scalability is a important aspect of any cloud-based solution,

  • Published in Cloud Computing, EITC/CL/GCP Google Cloud Platform, GCP labs, Container-Optimized OS, Examination review
Tagged under: Automatic Updates, Cloud Computing, Container Workloads, Container-Optimized OS, Cost Management, Fault Tolerance, GCP, Google Cloud Platform, Isolation Mechanisms, Lightweight, Reliability, Resource Allocation, Scalability, Security Patches, Spending Optimization

How does Google Cloud Platform leverage its global network infrastructure to achieve high-speed and accurate results?

Thursday, 03 August 2023 by EITCA Academy

Google Cloud Platform (GCP) leverages its global network infrastructure to achieve high-speed and accurate results through a combination of advanced technologies and strategic network design. This allows GCP to deliver low-latency, reliable, and scalable services to its users worldwide. One of the key components of GCP's global network infrastructure is its extensive network of data

  • Published in Cloud Computing, EITC/CL/GCP Google Cloud Platform, GCP networking, Load Balancing, Examination review
Tagged under: Cloud Computing, Edge Caching, Fault Tolerance, GCP, Global Network Infrastructure, Google Cloud Platform, Load Balancing, Strategic Network Design

What is the purpose of dynamic routing in cloud networking, and why is it important?

Thursday, 03 August 2023 by EITCA Academy

Dynamic routing plays a important role in cloud networking, particularly in the context of Google Cloud Platform (GCP) networking and its Cloud Router service. The purpose of dynamic routing is to enable efficient and automated network traffic management by dynamically determining the best path for data packets to reach their destination. This is achieved through

  • Published in Cloud Computing, EITC/CL/GCP Google Cloud Platform, GCP networking, Cloud Router, Examination review
Tagged under: Cloud Computing, Cloud Networking, Dynamic Routing, Fault Tolerance, Network Performance, Scalability
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