Hello <span>August1859
</span>
Answer: In a database, a key field is used to uniquely identify each record for retrieval or manipulation.
Hope This Helps!
-Chris
Answer: b. My name is BobBob
Explanation:
- $foo = 'Bob'; // Assigns foo variable the value Bob
- $bar = $foo; // Assigns the value of foo to bar
- $bar = "My name is $bar"; //changes the $bar this is the way to include variables directly in the string.
- print $bar; // this prints My name is and moves to the variable $bar which prints the value of $bar which is the value of $foo i.e. Bob
- print $foo; // prints another Bob
Answer:
You could just use a code library.
Explanation:
Answer:
<u>VLANs</u>
Explanation:
Virtual LANs (VLANs) are a type of network connection or arrangement of network devices in the same broadcast domain. They are called Virtual LANs because they represent fractions or subgroups in the switch ports found in an Ethernet LAN.
Indeed, because of their topological arrangement, this reduces the security risk of unauthorized access to sensitive data or devices since the host can be placed on a different VLAN. Hence, in this scenario, using this network feature would allow visitors to plug into these ports to gain internet access, but they would not have access to any other devices on the private network.
