Which of the following records allows for reverse DNS lookups?
A. AAAA
B. A
C. PTR
D. CNAME
Answer: C. PTR
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Answer the following statement true (T) or false (F)
Which digital signal modulation method is a binary modulation technique in which the carrier signal's frequency is changed to represent a 1 or 0 bit?
A. ASK B. FSK C. PSK D. FDM
A(n) _________ is a device on a wireless network used to grant network access to wireless devices. A. wireless access point B. wireless access organizer C. network access adapter D. network access switch
Fill in the blank(s) with the appropriate word(s).
What is a benefit of using a range name in Excel?
A) Range names are required when using financial functions. B) Range names make the data more portable to other applications. C) Range names inherently make calculations more accurate. D) Range names are easier for people to remember than cell references.