1.Business-to-business marketplaces aggregate multiple ______.
A. web portals
B. product lines
C. business models
D. currencies
2.The sticky keys feature enables users to _____.
A. use an onscreen keyboard
B. remove certain keyboard combinations from a keyboard
C. execute keyboard combinations one key at a time
D. speak keyboard combinations instead of typing
The correct answer and explanation is:
Question 1:
Business-to-business marketplaces aggregate multiple ______.
Correct Answer: B. Product lines
Explanation:
Business-to-business (B2B) marketplaces are platforms where businesses buy and sell goods or services from other businesses. These marketplaces aggregate multiple product lines to provide a wide variety of options to buyers. A product line refers to a group of related products or services that are offered together, typically sharing similar characteristics or targeting the same audience.
By aggregating product lines, B2B marketplaces create an extensive catalog of offerings, which makes it easier for buyers to compare products, find the best prices, and make informed purchasing decisions. For sellers, being part of a marketplace helps in expanding their reach and visibility to a larger audience. Examples of B2B marketplaces include Alibaba and ThomasNet, which feature a diverse array of product categories, ranging from raw materials to industrial machinery.
The other options are incorrect because:
- A. Web portals: These are entry points to the internet, not a focus of aggregation in B2B marketplaces.
- C. Business models: B2B marketplaces follow specific models (e.g., auctions, catalogs) but do not aggregate business models.
- D. Currencies: While transactions may support multiple currencies, this is not the primary focus.
Question 2:
The sticky keys feature enables users to _____.
Correct Answer: C. Execute keyboard combinations one key at a time
Explanation:
The Sticky Keys feature is an accessibility tool designed for individuals who have difficulty pressing multiple keys simultaneously. It allows users to execute keyboard shortcuts (e.g., pressing Ctrl + Alt + Del) one key at a time instead of requiring all keys to be pressed together. Sticky Keys hold down the modifier key (like Ctrl, Alt, or Shift) until another key is pressed. This is especially useful for people with motor disabilities or those who find traditional keyboard use challenging.
For instance, instead of holding down Shift and typing a capital letter, users can press Shift, release it, and then press the letter key. Sticky Keys reduce the physical effort required to perform complex commands, making computing more accessible.
The other options are incorrect because:
- A. Use an onscreen keyboard: This feature is separate from Sticky Keys.
- B. Remove certain keyboard combinations: Sticky Keys do not remove combinations but facilitate their use.
- D. Speak keyboard combinations: This would fall under speech recognition, not Sticky Keys.