A user's computer is unable to access the Internet. Which of the following utilities can a technician use to determine if DNS is working?
A. nbstat
B. arp
C. nslookup
D. ipconfig
Answer: C. nslookup
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__________ prevents either sender or receiver from denying a transmitted message. Thus, when a message is sent, the receiver can prove that the alleged sender in fact sent the message and when a message is received, the sender can prove that the alleged receiver in fact received the message.
Fill in the blank(s) with the appropriate word(s).
Which of the following refers to an internal procedure by which authorized changes are made to software, hardware, network access privileges, or business processes?
A) Change control B) NIST framework C) Standard operating procedure D) Patch management
Which term refers to the area at the bottom of the screen that contains the Start button?
A) Taskbar B) Notification area C) Quick Launch toolbar D) Desktop
One type of security for wireless networks involves entering a list of the MAC addresses for the devices that are allowed to access the network and excluding all others. This is called MAC ____________.
Fill in the blank(s) with the appropriate word(s).