Networking and Cybersecurity Multiple Choice Questions

Which option shows a correctly configured IPv4 default static route?

• ip route 0.0.0.0 255.255.255.0 S0/0/0

• ip route 0.0.0.0 0.0.0.0 S0/0/0 +

• ip route 0.0.0.0 255.255.255.255 S0/0/0

• ip route 0.0.0.0 255.0.0.0 S0/0/0

What is a method to launch a VLAN hopping attack?

• introducing a rogue switch and enabling trunking

• sending spoofed native VLAN information

• sending spoofed IP addresses from the attacking host

• flooding the switch with MAC addresses

A cybersecurity analyst is using the macof tool to evaluate configurations of switches deployed in the backbone network of an organization. Which type of LAN attack is the analyst targeting during this evaluation?

• VLAN hopping

• DHCP spoofing

• MAC address table overflow

• VLAN double-tagging

Which statement is correct about how a Layer 2 switch determines how to forward frames?

• Frame forwarding decisions are based on MAC address and port mappings in the CAM table.

• Only frames with a broadcast destination address are forwarded out all active switch ports.

• Unicast frames are always forwarded regardless of the destination MAC address.

• Cut-through frame forwarding ensures that invalid frames are always dropped.

Which statement describes a result after multiple Cisco LAN switches are interconnected?

• The broadcast domain expands to all switches.

• One collision domain exists per switch.

• There is one broadcast domain and one collision domain per switch.

• Frame collisions increase on the segments connecting the switches.

15. An administrator is trying to remove configurations from a switch. After using the command erase startup-config and reloading the switch, the switch will:

• load with default settings

• retain the previous configuration

• require a password reset

• shut down automatically

An administrator finds that VLANs 10 and 100 still exist on the switch. Why were these VLANs not removed?

• Because these VLANs are stored in a file that is called vlan.dat that is located in flash memory, this file must be manually deleted.

• These VLANs cannot be deleted unless the switch is in VTP client mode.

• These VLANs are default VLANs that cannot be removed.

• These VLANs can only be removed from the switch by using the no vlan 10 and no vlan 100 commands.

What is a secure configuration option for remote access to a network device?

• Configure an ACL and apply it to the VTY lines.

• Configure 802.1x.

• Configure SSH.

• Configure Telnet.

Which wireless encryption method is the most secure?

• WPA2 with AES

• WPA2 with TKIP

• WEP

• WPA

After attaching four PCs to the switch ports, configuring the SSID and setting authentication properties for a small office network, a technician successfully tests the connectivity of all PCs that are connected to the switch and WLAN. A firewall is then configured on the device prior to connecting it to the Internet. What type of network device includes all of the described features?

• firewall appliance

• wireless router

• switch

• standalone wireless access point