Which of the following layers of the OSI model make up the Network Interface layer of the TCP/IP
model? (Select TWO).

A company has been given a Class C address to be utilized for all devices. The company has several
subnets and the largest subnet has 15 hosts. Which of the following represents the MINIMUM CIDR
notation of this subnet mask?

Which of the following STP states indicates an inactivated port due to a loop?

A technician has spent most of the day replacing a server running DHCP. Some of the users have
begun to call the help desk stating that Internet connection stopped working even after rebooting.
Upon investigation, the users’ PCs with issues all have IP addresses that start with 169.254.x.x. The
technician completes the replacement and powers on the new DHCP server. Which of the following
is the BEST way to provide the PCs with issues a new IP address?

Which of the following protocols are used to view and send mail from a local host off of a remote
server? (Select TWO).

Which of the following protocols is used to send time synchronization updates on a given network?

Which of the following network devices builds a table of ports to MAC addresses to forward packets
only to necessary ports?

Which of the following protocols does DNS utilize on port 53?

Which two layers of the OSI model make up the TCP/IP model Network Interface layer?

Which of the following services are affected by closing the default ports of 80 and 21 via ACL on a
company router?