Answer:
true is the correct answer
Answer:
Two systems are connected by a router. Both systems and the router have transmission rates of 1,000bps. Each link has a propagation delay of 10ms. Also, it takes router 2ms in order to process the packet (e.g. decide where to forward it). Suppose the first system wants to send a 10,000 bit packet to the second system. How long will it take before receiver system receives the entire packet.
Transmission time for first Router = 10,000 bits / 1000 bps = 10 seconds
Receiving time for seond route r= 10,000 bits / 1000 bps = 10 seconds
Propagation delay = 10ms = .01 seconds x 2 for two delays = .02 seconds
First router 2ms to process = .002 seconds
Add all the times together and we get 20.022 seconds which is the same as or 20 seconds and 22 ms
Mechanical mouse has a ball that turns rollers inside. If friction is lost between the ball and the mousing surface, or between the ball and the rollers, the mouse fails to work. In order to assure good contact with the mousing surface, the ball must be fairly heavy. When you change directions with the mouse, you must make the ball change rolling directions--an action that inertia likes to prevent.
An optical mouse makes use of an LED and some optics to detect surface texture and the changes in it as the mouse is moved. There are no moving parts
Answer:
The correct answer to the following question will be "Local mapping".
Explanation:
- A data independence standard in global DBMSs where questions can be constructed without understanding the local formats. Knowledge of quotas of pieces and components is however important.
- With the transparency of local mapping, the user wants to determine both fragment location and name of data items, keeping in mind any replication that may occur.
- This is clearly a more complicated and time-consuming question for all the users to answer than the first. A program that only offers it the amount of transparency would be unlikely to be satisfactory to later part-users.
Therefore, "Local mapping" is the right answer.
