Question

1. Which of the following upgrades cannot improve a computer’s speed? (computer’s speed in general, e.g., computing speed, wireless speed, and so on).

Using Wi-Fi instead of Bluetooth to transmit data.

Upgrading to a more powerful CPU.

Increasing RAM capacity.

Switching from 802.11ac to 802.11a (given that the wireless environment supports both 802.11ac and 802.11a).

2.

Which of the following is NOT an example of transactional data?

		Stock purchase
		Number of items ordered
		Total amount for a transaction
		Sale projection

3.

A network that is within a building or campus is referred to as a_______; A network that connects locations and people globally is referred to as_______; A network that connects within a cubicle wirelessly is referred to as a_______.

		Personal Area Network; Wireless Metropolitan Area Network; Wireless Local Area Network.
		Local Area Network; Metropolitan Area Network; Personal Area Network.
		Wide Area Network; Personal Area Network; Wireless Local Area Network.
		Local Area Network; Wide Area Network; Wireless Personal Area Network.
		Wireless Local Area Network; Metropolitan Area Network; Wireless Personal Area Network.

Answer 1

Answers:

1. Switching from 802.11ac to 802.11a (given that the wireless environment supports both 802.11ac and 802.11a)

As the 802.11 ac standard is the newer generation whose bandwidth is rated up to 1300 Mbps on the 5 GHz band, plus up to 450 Mbps on 2.4 GHz whereas 802.11a standard supports bandwidth up to 54 Mbps.

There is no point in moving from the "ac" standard to "a" which is a clear downgrade and won't offer any speed improvements whatsoever.

2. Sale projection

Rest all the options are related to a transaction in some way or other. But sale projection is just the prediction or probability of product(s) to be sold. A sales projection is the amount of revenue a company expects to earn at some point in the future. It's a prediction that is synonymous with a sales forecast.

3. Local Area Network; Wide Area Network; Wireless Personal Area Network.

A network that is within a building or campus is referred to as a LAN (Local Area Network). A network that connects locations and people globally is referred to as WAN (Wide Area Network). A network that connects within a cubicle wirelessly is referred to as a Wireless Personal Area Network.