Answer:
Aggregate Function
.
Explanation:
The aggregate function returns the single value of the entire column of the database management system. The Aggregate Function is used in the SELECT statement and the GROUP BY clause.
The sum(),avg(), etc are some examples of Aggregate Function in the database with the help of aggregate function bobby gains the access to information above the usual clearance point. and summarizes the data.
Answer:
Text Messages
Explanation:
Synchronous communication is a simultaneous communication between two people. This is the type of serial communication where two person can communicate at the same time. This type of communication exclude face to face communication and phone communication.
for example
during Chat when we are taking to someone he also can reply the same time.
Answer:
False
Explanation:
A web-based application encounters connectivity and compatibility relate to data server. It does not belong to any hardware environments.
A web based application is accessed over network.They run inside a web browser. Small of program is download to user's desktop, but this processing is done over internet.
Answer:
Redundant paths can be available without causing logical Layer 2 loops.
Explanation:
- Spanning Tree Protocol is used to allow redundancy in the Layer 2 switched networks without creating cycles/circles also called loops.
- These loops are called physical loops.
- When two parts of the switched network are connected via two or more Layer 2 switches this result in a loop.
- This affects the performance of the network as the result of broadcast packets flooding.
- STP puts one port of the switch to forward mode and the rest of the ports within the same part of the network to the blocking mode to avoid broadcast packet flooding. STP puts all the ports that are allowing redundant paths to block mode and the one port that is left after this is placed in forward mode.
- Spanning Tree Algorithm is used by STP to determine the optimal path of switch to the network.
- Bridge Protocol Data Units are used to share the information about the optimal path determined by the spanning tree algorithm with other switches.
- This information helps STP to eliminate the redundant paths.
- So this is how STP tracks all the links in the switched network and eliminates redundant loops by allowing only one active path to the destination while blocking all other paths.
False.
When you copy an object/image or insert it manually into an Excel spreadsheet cell, what will happen is that the object will lie on a separate layer and it will float on the sheet independently from the cell. If you want it embedded inside the cell, you can either resize both the picture and adjust the cell or merge the cells.
