Answer: Coaxial Cable got its name as "coaxial cable" as it has two physical layer of channel in same cable axis.
Explanation: Coaxial cable is the cable that is basically composed of copper and shield of other materials.They have two physical channels and having a insulating layer between them and the outer layer serving as the ground layer. Both the channel of physical layer have the same axis that why it is termed as "coaxial".These cables are commonly used in the cable televisions , sometimes in telephone line etc.
Data visualization
Data visualization is a good starting point for data mining. There are several approaches to data mining that supports smart decisions. Data visualization places data in a visual context. It extracts the data in a clear and understandable way without any form of reading or writing. Results are displayed in the form of pie charts, graphs, and any other statistical representation. Such multidimensional views of data aid in developing a preliminary understanding of the trends that are hidden in the data set.
In 1972 Bill Gates formed Traf-O-Data.
Answer:
<u>Advantages of wireless communication:-</u>
- Flexibility in transferring the message through communication for which the sender and receiver can be in any place.
- Speed of the communication is accurate and fast
- Due to no wiring , the cost of the wireless communication is less.
<u>Disadvantages of wireless communication:-</u>
- The security is less as the data can be accessed by unauthorized sources at times.
- The setting up of wireless communication complex and expensive.
<u>Advantages of wired communication:-</u>
- Simple configuration
- Higher bandwidth is present in the cable
- High reliability
<u>Disadvantages of wired communication:-</u>
- Mobility is present for communication
- Installation requires lot of time due to cabling
- Requires extra devices for covering large areas for communication
Wireless communication is more preferable than wired communication in the conditions like communication connection that should face low damage and longer life which is not present in cable connection as they break or get disrupted.The flexibility of moving while communication is required by most people so, they use wireless communication .
Answer:
<em>Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are empty</em>
<em>Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNT</em>
<em>Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNTb. COUNTA</em>
<em>Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNTb. COUNTAc. COUNTBLANK</em>
<em>Which function would you use if you wanted to count the number of values, but ignore the cells that have text or are emptya COUNTb. COUNTAc. COUNTBLANKd. COUNTVALUES</em>
