What is the advantage of coaxial cable over STP or UTP?

What is the advantage of coaxial cable over STP or UTP?

• It can run for a longer distance unboosted
• It is easier to splice.
• It is less expensive
• It is easier to install because it is so flexible 

 

EXPLANATION

Coaxial cable conducts the electrical signal using an inner conductor (usually copper) surrounded by an insulating layer. The whole works are enclosed by a one to four layer shield. This makes coaxial cable thicker than STP or UTP, so harder to install and splice. It also makes it more expensive. But, it has the advantage of being able to carry large quantities of data over a longer distance unboosted.

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When replacing a damaged Chromebook in the Google GSuite admin console, what license allows you to reuse a license for the same model Chromebook?

When replacing a damaged Chromebook in the Google GSuite admin console, what license allows you to reuse a license for the same model Chromebook?

• Annual
• KMS
• Perpetual
• MAK 

 

EXPLANATION

Google allows a Google GSuite console to move licenses to a different Chrome device, but there are differences. There are a Annual and Perpetual. Perpetual licenses are a one time purchase for a single type of device. If that device breaks and is replaced with the same model, you can transfer the license to that device. If you would replace it with a different type and model of device, you would have to purchase an additional license.
An annual license is bought per term and in the case of this, you can transfer the license to any new devices, regardless of the model and type during the license term.
Also, different versions of GSuite support different licensing models. GSuite Enterprise supports Annual and Perpetual, whereas GSuite Education and GSuite Nonprofit only supports Perpetual.

SOURCE

https://support.google.com/chrome/a/answer/2717664?hl=en

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Which of the following is NOT a fork of Nagios Core network monitoring system?

Which of the following is NOT a fork of Nagios Core network monitoring system?

• Naemon
• Shinken
• Check MK
• Icinga 

 

EXPLANATION

Nagios Core is a free and open source computer-software application that monitors systems, networks and infrastructure, initially released in 1999.
Icinga is an open source computer system and network monitoring application. It was originally created as a fork of the Nagios system monitoring application in 2009.
Naemon is an open source computer system monitoring, network monitoring and infrastructure monitoring software application. Initial release 2015 and based on Nagios 4 core.
Shinken is an open source computer system and network monitoring software application. Released as a fork of Nagios in 2009.
Check_MK is an extension to the Nagios monitoring system that allows creating rule-based configuration using Python and offloading work from the Nagios core to make it scale better, allowing more systems to be monitored from a single Nagios server. Initial release 2008.

SOURCE

https://en.wikipedia.org/wiki/Nagios#See_also

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Which of the following is the port used for POP3 SSL Traffic?

Which of the following is the port used for POP3 SSL Traffic?

• 587
• 995
• 25
• 110

EXPLANATION

POP uses port 110, but SSL/TLS encrypted POP uses port 995.

SOURCE

https://www.fastmail.com/help/technical/ssltlsstarttls.html

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In programming, which of the following is a mechanism by which an object acquires the properties of another object?

In programming, which of the following is a mechanism by which an object acquires the properties of another object?

• Anamorphism
• Inheritance
• Encapsulation
• Polymorphism 

 

EXPLANATION

‘Inheritance’ is the mechanism provided by Object Oriented Language, which helps an object to acquire the properties of another object usually child object from parent object.

SOURCE

https://en.wikipedia.org/wiki/Inheritance_(object-oriented_programming)

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What does the sender need in order to digitally sign an email?

What does the sender need in order to digitally sign an email?

• The public key of the recipient
• The public key of the sender
• The private key of the recipient
• The private key of the sender 

EXPLANATION

A digital signature is created by hashing a message and encrypting the hash with the sender's private key. The recipient can then decrypt the hash with the sender's public key. The recipient's keys are not used for a digital signature.

The sender's public key is NOT required to sign the message.
The sender's public key (in the possession of the recipient) is used verify signature.
The recipient's public key is meaningless in this scenario.
The recipient's private key is meaningless in this scenario.  

A general overview of this process can be found here https://www.docusign.com/how-it-works/electronic-signature/digital-signature/digital-signature-faq

SOURCE

https://en.wikipedia.org/wiki/Public-key_cryptography#Digital_signatures

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In Windows, if you want to format a hard drive or removable disk so it can be read and written by both Windows and Apple machines you would format the disk as which of the following?

In Windows, if you want to format a hard drive or removable disk so it can be read and written by both Windows and Apple machines you would format the disk as which of the following?

• NTFS
• exFAT
• HFS
• REFS 

 

EXPLANATION

Both Windows and Apple machines can read drives formatted in FAT32.  Apple can read NTFS but cannot write to it.

SOURCE

https://www.laptopmag.com/articles/format-drive-for-windows-and-mac

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