Networking Quiz

Refer to the exhibit. What will router R1 do with a packet that has a destination IPv6 address of 2001:db8:cafe:5::12?

• forward the packet out GigabitEthernet0/0

• drop the packet

• forward the packet out GigabitEthernet0/1

• forward the packet out Serial0/0/0

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

Refer to the exhibit. Which static route command can be entered on R1 to forward traffic to the LAN connected to R2?

• ipv6 route 2001:db8:12:10::/64 S0/0/0

• ipv6 route 2001:db8:12:10::/64 S0/0/1 fe80::2

• ipv6 route 2001:db8:12:10::/64 S0/0/0 fe80::2

• ipv6 route 2001:db8:12:10::/64 S0/0/1 2001:db8:12:10::1

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

Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?

• The default gateway address is not provided in the pool.

• No clients have communicated with the DHCPv6 server yet.

• The IPv6 DHCP pool configuration has no IPv6 address range specified.

• The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.

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.

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

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