Lisa, an administrator, attempts to open a web page and sees the following error: ‘Error 404: Page
not found’. She then uses the ping command and finds that the default gateway cannot be pinged.
At which of the following layers does the problem MOST likely reside?

Which of the following DNS record types provides the hostname to IP address mapping?

Which of the following exterior routing protocols uses an algorithm to determine the quickest route
to a destination?

Which of the following OSI model layers is used for logical addressing?

Which of the following services do TCP connections provide to application layer protocols? (Select
TWO).

Which of the following protocols is commonly used for VoIP technology?

Which of the following is the broadcast address for a network defined as 192.168.0.0/24?

Which of the following protocols uses port 3389?

Zach, a network administrator, is responding to a support ticket. The ticket does not have enough
information to determine the problem. Which of the following should Zach perform FIRST before
responding to the ticket?

Which of the following subnet masks would allow for 192.168.0.3 and 192.168.0.240 to be in the
same subnet?