Answer:
The answer is 'D'- only port replicators have expansion slots.
Explanation:
A port replicator is a kind of attachment which allows multiple devices to be attached to the laptop through a simple USB. The devices can be a monitor, printer, large monitor, keyboard etc.
On the other hand a docking station allows portable computers to be connected to other hardware devices and get converted into a desktop system. Docking station can be plugged hot or cold. Cold docking is carried out when the system is shut down and hot docking occurs when the system is still running and the docking station is connected.
Authentication can be done by the issuer of the security.
What do you mean by authentication?
Authentication is the act of proving an assertion, such as a computer system user's identification. Authentication is the process of verifying a person's or thing's identity, as opposed to identification, which is the act of indicating that identity. It could entail validating personal identification documents, verifying the authenticity of a website with a digital certificate, carbon dating an artefact, or guaranteeing that a product or document is not counterfeit.
Only a party with access to particular company documents may authenticate a mutilated certificate. It is most likely the issuer, but it could also be the transfer agent or registrar.
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When looking at wireless channels, there are a couple of variables to keep in mind:
The number of other networks using what channels
The strength of the other networks on other channels
So generally speaking, channels 1, 6, and 11 are used by default. The reason for this is because there isn't any adjacent channel interference when you have all of your networks spread out in that manner. If for example, a network was using channel 3, that network would interfere with the signals one channel 1 and 6, and the bandwidth of those channels would have to be shared amongst all of those networks. This isn't optimal. Ideally you should look for a channel with less hosts who have weak signals. I know that in my area, channel 11 is the best channel to be on, because the hosts using that channel have weak signal strengths, which results in a lesser chance of those signals interfering with mine.
Answer:
Option C, Disaster recovery plan
Explanation:
The seven domains of IT are
User Domain
System/Application Domain
LAN Domain
Remote Access Domain
WAN Domain
LAN-to-WAN Domain
Workstation Domain
To these seven domain, the Disaster recovery plan only applies to the LAN-to-WAN Domain as it is vulnerable to corruption of data and information and data. Also, it has insecure Transmission Control Protocol/Internet Protocol. (TCP/IP) applications and it at the radar of Hackers and attackers