Answer:
Port security and violation mode.
Explanation:
A switch is a layer two device of the OSI model. It is used to transmit frames between nodes within a network. It transfers frames by discovering the destination Mac address and saving it to its address table, and sending the frame to the egest port to the destination.
The port security command is used to specify the Mac addresses that are recognised by a port. There are three types of port security, they are, dynamic, static and sticky Mac addresses that can configured on an interface.
The security violation command is used to decide what happens to a port when it detects an unfamiliar Mac address. The three security violation modes are protect, restrict and shutdown. It is used as an interface command alongside the port security command.
Answer:
float avg = 23.5;
Explanation:
Given
The declarative statements
Required
Determine which of them is invalid
<em>Analyzing them one after the other;</em>
int zebraCnt = 40000;
This statement is valid as zebraCnt is correctly declared as type integer
<em></em>
long birdCnt = 222_222_222_222_222L;
This statement is valid as birdCnt is correctly declared as type long
float avg = 23.5;
This statement is invalid as avg is incorrectly declared as type float.
<em>To correctly declare avg, you either change the datatype to double: as follows;</em>
double avg = 23.5;
or <em>append f to the declaration; as follows</em>
float avg = 23.5f;
double avg = 98.32121;
This statement is valid as avg is correctly declared as type double
Hence, the incorrect declarative statement is float avg = 23.5;
Try replacing the batteries inside the mouse. If it still doesn't work, check external appliances on the computer, as it may not have read it on there ( external appliances & mouse).
If you still can't fix it, it is better to get a tech person's help.
1. 3G needs a mobile phone contract because it is a data connection over satellite.
2. Radation emmited from the magnetic waves used by 3G can damage our health long term