Answer:
A. Lookup
Explanation:
You would use the Lookup field to store a value from another table.
Answer:
spooler
Explanation:
A print server uses a print spooler as a software holding area for jobs waiting to be printed.
Answer:
The answer is "Option C".
Explanation:
Relational expression are one or more variable and maybe even values, which operators have linked together. It is also known as the process, which is used to calculate the outcome, that is generated by the relational expression. These words are typically designed to answer the questions in boolean values, and other options were not correct, that can be described as follows:
- In option A, This process is used to perform the mathematical operation, that's why it is not correct.
- Option B and Option D both is used to compare values, that's why it is not correct.
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:
The advantages of a digital darkroom is that it allows the photographer to make minor changes to improve a photograph. The disadvantage is that the more you want your picture to come out better you would need to waste your time or be patient to get the picture and buy a better camera.
