Answer:
All the ports in a hub are in the same collision domain and a hub sends frames from one host to all other hosts in the network. This makes it prone to collision and poor network throughput. Just like a network switch, it uses the CSMA/CD protocol to detect collision in its network.
A network switch reduces its collision domain to just a port and sends frames from one host to another using its mac table as a route. This makes the network very efficient with high throughput. It also uses the CSMA/CD protocol to detect collision
Explanation:
Switches and hubs are used in networking to connect computer devices in a network. A hub is an obsolete device networking that broadcast a frame to all other ports or host in the network except for the send host port. This increases the rate of collision as all the ports in a hub share the same collision domain. A switch is an efficient frame switching device in a network, which uses its MAC table to decide and find a destination host.
CSMA/CD is a collision detection protocol used in a network to detect and prevent a collision. With this protocol, a host is able to listen, wait, send and resend frames to prevent a collision.
Answer:
syndication
Explanation:
According to Gitlin, during the 1950s and 60s television production costs began to exceed the licensing fees the networks paid in order to broadcast their programming. But the studios could make that money back by putting a show in syndication after it produced 100 episodes that could be programmed in re-runs. Syndication is the licensing or sale of a publication material by television stations.
Answer:alphabetic keys, numeric keys, function keys and special keys.
Explanation:
Answer: Phishing
Explanation: Phishing is the type of security issue that arises when any individual is contacted by email or message to gain their confidential information through pretending as legal institution so that people can share their information easily.
eBay is also facing such cyber-crime issue so that customer's confidential data like debit card details, credit details details, passwords etc can be achieved through a illegal site posing to be eBay.
Answer:
None of them is correct, but it seems one of the option has missing words.
The exact definition is, MySQL is a database management system.
Explanation:
Agile is not a programming language, it is a software development methodology.
HTML stands for "Hypertext Markup Language"
Java and JavaScript are different languages.
Actually, MySQL is a database management system. It is used to deal with the relational databases. It uses SQL (Structured Query Language).
