Networking and Internet | Basic Computer Knowledge

1.

A (n) ____________ system is a small, wireless handheld computer that scans an item's tag and pulls up the current price (and any special offers) as you shop.

   A.) PSS
   B.) POS
   C.) inventory
   D.) data mining

Answer: Option 'A'

PSS

2.

SMTP, FTP and DNS are applications of the ____ layer.

   A.) data link
   B.) network
   C.) transport
   D.) application

Answer: Option 'D'

application

3.

With an IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts?

   A.) 192
   B.) 240
   C.) 252
   D.) 224

Answer: Option 'C'

252

4.

Before data can be transmitted, they must be transformed to ________.

   A.) periodic signals
   B.) aperiodic signals
   C.) electromagnetic signals
   D.) low-frequency sine waves

Answer: Option 'C'

electromagnetic signals

5.

DSL is an example of a __________ connection:

   A.) Network
   B.) Wireless
   C.) Broad band
   D.) Slow

Answer: Option 'A'

Network

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