Network Security - Attacks & Mitigations

What protocol is used to resolve IP addresses to MAC addresses?

• DHCP

• DNS

• ARP

• STP

How can we secure dynamic routing protocols to prevent fake updates?

• Disable OSPF

• Configure passive interfaces

• Configure authentication

• Change native VLAN

An attacker can use ARP Poisoning to do which of the following? (select all that apply)

• Hide in the network

• Perform DoS

• Install malware

• Intercept traffic

What protection can be used to prevent MAC Address Flooding attacks?

• Install patches

• Use encrypted protocols

• MFA

• Configure port security

Which device operates by replicating Ethernet frames out all ports?

• Hub

• Switch

• Router

• Firewall

What does a switch use to keep track of MAC addresses and the interfaces they are connected to?

• Routing Table

• MAC Address Table

• ARP cache

• Lookup Table

The MAC Address tables is also called the CAM table?

• True

• False

When a CAM table is flooded, the switch will fall back to behaving like a _____?

How does an attacker overflow the CAM table of a switch?

• Attacker impersonates a legitimate switch

• Attacker sends false ARP to targets

• The attacker sends a large number of packets with false MAC addresses

• Attacker sends a UDP packet with a spoofed IP address

How does an attacker execute an ARP Poisoning attack?

• Attacker impersonates a legitimate switch

• Attacker sends false ARP to targets

• The attacker sends a large number of packets with false MAC addresses

• Attacker sends a UDP packet with a spoofed IP address