Which of the following layers of the OSI model lies between the transport layer and the network layer?


A. Application
B. Data link
C. Session
D. Presentation

A technician is investigating why a PC cannot reach a file server with the IP address 192.168.8.129. Given the following TCP/IP network configuration:

Which of the following configurations on the PC is incorrect?

A. Subnet mask
B. IPv4 address
C. Default gateway
D. IPv6 address

Which of the following routing protocols is BEST suited for use on a perimeter router?


A. OSPF
B. RIPv2
C. EIGRP
D. BGP

Which of the following is used to require network devices to authenticate before gaining access to a LAN?


A. 802.1Q
B. 802.1X
C. 802.11ax
D. 802.3af

An administrator is preparing an organization for a potential disaster. The administrator configures the network switches and turns off the equipment in a data center. Which of the following is this scenario an example of?


A. Warm site
B. Cold site
C. Cloud site
D. Hot site

A technician is concerned about unauthorized personnel moving assets that are installed in a data center server rack. The technician installs a networked sensor that sends an alert when the server rack door is opened. Which of the following did the technician install?


A. Cipher lock
B. Asset tags
C. Access control vestibule
D. Tamper detection

A company is using a DHCP server with 12-hour leases for its device configurations. A user records the information that the DHCP server provides and uses the information to connect a device with a manual IP set.
Over time, the user experiences intermittent connectivity and recurring connection timeouts. Which of the following is the MOST likely cause of the issue?


A. A duplicate IP address is on the network.
B. The user's device is pointing to an incorrect DNS server.
C. The device is set to use an incorrect subnet.
D. The device is set to use an incorrect gateway.

A technician needs to map the path of a PC to the router. Which of the following tools should the technician use to accomplish this task?


A. traceroute
B. ping
C. ifconfig
D. netstat

Which of the following VPN types provides the highest security for a user who travels often but also has the highest bandwidth requirements to provide a satisfactory user experience?


A. Full-tunnel
B. Site-to-site
C. Clientless
D. Split-tunnel

A network administrator is assisting a user who is unable to access network services by using hostname on Host 1. Another user in the same office is able to access the network services with no issue on Host 2. The network administrator runs a command on the affected machine and the working machine and compares the following output:

Which of the follow should the network administrator change to restore connectivity?

A. Change the default gateway on Host 1 to 192.168.1.1.
B. Change the IPv4 address on Host 2 to 192.168.0.112.
C. Reconfigure the subnet masks on both hosts.
D. Update the DNS server on Host 1 to 192.168.0.53.