<span>A field in an access database table that has no value is determined by access to have a null value</span>
The correct answer for this question is this one: "a. wireless local area network (WLAN)."
<span>The technology that is predominately used for contactless payment systems is called the </span><u>wireless local area network (WLAN)</u><u />. It is even used now a days.
Hope this helps answer your question and have a nice day ahead.
The greatest number of bits that could be borrowed from the host portion of a class B subnet mask and still have at least 130 hosts per subnet is 10 bits.
<h3>What is
subnet mask?</h3>
A subnet mask can be defined as a logical subdivision of an internet protocol (IP) network into a 32-bit number by setting all host bits to 0s and all network bits to 1s.
Ideally, a class B subnet mask is made up of 16 hosts bits per internet protocol (IP) network. Thus, you should determine the number of possible host in a class B subnet mask by using this formula:
Y = 2ⁿ - 2
Y = 2¹⁶ - 2
In conclusion, the greatest number of bits that could be borrowed from the host portion of a class B subnet mask with at least 130 hosts per subnet left is 10 bits.
Read more on subnet mask here: brainly.com/question/8148316
Answer
Address masquerading technique.
Explanation:
Address masquerading