According to the FortiGate Administration Guide, ''FortiGate can learn the FortiManager IP address or FQDN for zero-touch provisioning from a DNS server using A or AAAA records. The DNS server must be configured to resolve the hostname fortimanager.fortinet.com to the IP address or FQDN of the FortiManager device.'' Therefore, option D is true because it describes the method for FortiGate to learn the FortiManager IP address or FQDN for zero-touch provisioning. Option A is false because LDAP is not used for zero-touch provisioning. Option B is false because TFTP is not used for zero-touch provisioning. Option C is false because DHCP options 240 and 241 are not used for zero-touch provisioning.

According to the FortiAP Configuration Guide1, ''Auto TX power control allows the AP to adjust its transmit power based on the signal strength of the client. The AP will measure the signal strength of the client every 30 seconds and adjust its transmit power up or down until the client signal is detected at -70 dBm.'' Therefore, option A is true because it describes how the FortiAP wireless interface configures its transmission power when auto TX power control is enabled. Option B is false because FortiGate does not measure the signal strength of adjacent AP interfaces, but rather the FortiAP does. Option C is false because FortiGate does not adjust the adjacent AP power, but rather the FortiAP adjusts its own power. Option D is false because FortiGate does not measure the signal strength of the weakest associated client, but rather the FortiAP does.

According to the FortiOS CLI Reference Guide, ''The diagnose debug application foauthd command enables debugging of certificate verification process in real time.'' Therefore, option A is true because it describes the CLI command that an administrator should use to view the certificate verification process in real time. Option B is false because diagnose debug application radiusd -1 enables debugging of RADIUS authentication process, not certificate verification process. Option C is false because diagnose debug application authd -1 enables debugging of authentication daemon process, not certificate verification process. Option D is false because diagnose debug application fnbamd -1 enables debugging of FSSO daemon process, not certificate verification process.

According to the FortiSwitch Administration Guide, ''MAC-based 802.1X security mode allows you to authenticate each device connected to a port using its MAC address as the username and password.'' Therefore, option B is true because it describes the MAC-based 802.1X security mode available on FortiSwitch. Option D is also true because FortiSwitch can grant different access levels to each device connected to the port based on the user group and security policy assigned to them. Option A is false because FortiSwitch does not authenticate a single device and open the port to other devices connected to the port, but rather authenticates each device individually. Option C is false because MAC-based 802.1X security mode can be used in conjunction with MAC authentication bypass (MAB) or EAP pass-through modes, which are fallback options for non-802.1X devices.

According to the FortiGate Administration Guide, ''MAC address quarantine by redirect mode allows you to quarantine devices by adding their MAC addresses to a firewall address group called Quarantined Devices. The quarantined devices are kept in their current VLANs, but their traffic is redirected to a quarantine portal.'' Therefore, options B and D are true because they describe the statements about MAC address quarantine by redirect mode. Option A is false because the quarantined device is not moved to the quarantine VLAN, but rather kept in the current VLAN. Option C is false because redirect mode is not the default mode for MAC address quarantine, but rather an alternative mode that can be enabled by setting mac-quarantine-mode to redirect.

: https://docs.fortinet.com/document/fortiap/7.0.0/configuration-guide/734537/radius-authenticated-dynamic-vlan-allocation : https://docs.fortinet.com/document/fortigate/7.0.0/administration-guide/734537/mac-address-quarantine