You want to combine four 1TB hard drives into a single array with at least 2TB of storage. Which of the below configurations gives you the best balance of performance and redundancy?

You want to combine four 1TB hard drives into a single array with at least 2TB of storage. Which of the below configurations gives you the best balance of performance and redundancy?

• RAID 6
• RAID 10
• JBOD
• RAID 5 

EXPLANATION

All of the above possible configurations provide the minimum storage requirement. Some configurations provide more storage than others, but this is not a requirement.
JBOD offers no redundancy or performance gains, but provides the most storage space of the options provided.
RAID 5 offers 3x read speed and no write performance gains. RAID 5 is fault tolerant to 1 disk, regardless of the number of

SOURCE

https://en.wikipedia.org/wiki/RAID

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Which of the following is NOT considered an "advanced threat"?

Which of the following is NOT considered an "advanced threat"?

• Zero-day attack
• Advanced persistent threat (APT)
• Zombieware [Please report if the answer is incorrect]
• Polymorphic malware 

EXPLANATION

A zero-day vulnerability is a computer-software vulnerability that is unknown to those who would be interested in mitigating the vulnerability. Until the vulnerability is mitigated, hackers can exploit it to adversely affect computer programs, data, additional computers or a network. An exploit directed at a zero-day vulnerability is called a zero-day exploit, or zero-day attack.

An advanced persistent threat is a set of stealthy and continuous computer hacking processes, often orchestrated by a person or persons targeting a specific entity. An APT usually targets either private organizations, states or both for business or political motives. 

 In computing, a zombie is a computer connected to the Internet that has been compromised by a hacker, computer virus or trojan horse program and can be used to perform malicious tasks of one sort or another under remote direction. Botnets of zombie computers are often used to spread e-mail spam and launch denial-of-service attacks (DOS attacks). Most owners of "zombie" computers are unaware that their system is being used in this way. Because the owner tends to be unaware, these computers are metaphorically compared to fictional zombies. A coordinated DDoS attack by multiple botnet machines also resembles a "zombie horde attack", as depicted in fictional zombie films.

Polymorphic Code is the debut studio album by French one-man band The Algorithm, signed by Basick Records and released on November 19, 2012. Music video for the song Trojans was released on November 7, 2012.

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Which of these is NOT a characteristic of a private cloud?

Which of these is NOT a characteristic of a private cloud?

• Users can self-provision
• Located on-premises
• Elastic and scalable
• Pay for only the resources you use 

EXPLANATION

The five characteristics of a private cloud:

1. Scalable: High levels of utilization (e.g., through virtualization, and the size and maturity of data centers)
2. Accessible: IT customers can self-provision
3. Elastic: Appearance of infinite capacity on demand
4. Shared: Workloads are multiplexed, capacity is pooled

5. Metered consumption: Ability to pay for use with no commitment

 

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Which of these is not a private cloud platform?

Which of these is not a private cloud platform?

• OpenStack
• Eucalyptus
• CloudStack
• ownCloud 

EXPLANATION

Eucalyptus L'Héritier 1789 is a diverse genus of flowering trees and shrubs in the myrtle family, Myrtaceae. Members of the genus dominate the tree flora of Australia, and include Eucalyptus regnans, the tallest known flowering plant on Earth. Australia is covered by of eucalypt forest, comprising three quarters of the area covered by native forest. Wikipedia

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What does Amazon EC2 stand for?

What does Amazon EC2 stand for?

• Amazon Elastic Compute Cloud
• Amazon Expensive Cloud Computing
• Amazon Elective Computing Cloud
• Amazon Expert Computing Cloud 

EXPLANATION

Amazon Elastic Compute Cloud

Amazon Elastic Compute Cloud forms a central part of Amazon.com's cloud-computing platform, Amazon Web Services, by allowing users to rent virtual computers on which to run their own computer applications. Wikipedia

 

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