Part 4.2

Which of the following best describes the main goal of a Denial of Service (DoS) attack on a network?

• To steal confidential data from a server

• To overwhelm a network resource, making it unavailable to users

• To physically damage network hardware

• To encrypt files for ransom

How does a Distributed Denial of Service (DDoS) attack differ from a standard DoS attack in terms of execution?

• DDoS uses a single computer, while DoS uses multiple computers

• DDoS uses multiple computers to launch the attack simultaneously, increasing its impact

• DDoS only targets wireless networks

• DDoS is less effective than DoS

Which technique is commonly used in VLAN hopping attacks to gain unauthorized access to network segments?

• MAC address spoofing

• Double tagging of VLAN frames

• ARP cache poisoning

• DNS tunneling

What is the primary effect of a MAC flooding attack on a network switch?

• The switch disables all ports

• The switch forwards all traffic to all ports, acting like a hub

• The switch encrypts all data

• The switch blocks all incoming traffic

How does ARP poisoning impact network communication?

• It increases network speed

• It allows attackers to intercept or alter data by associating their MAC address with the IP address of another device

• It prevents devices from connecting to the network

• It encrypts all ARP messages

Which method is used in DNS spoofing to redirect users to malicious websites?

• Modifying the hosts file on the victim’s computer

• Changing the default gateway

• Disabling the DNS server

• Flooding the network with ARP requests

What is the main characteristic of an "evil twin" attack in wireless networks?

• Setting up a fake access point with the same SSID as a legitimate one

• Using a strong encryption protocol

• Disabling all wireless access points

• Flooding the network with ICMP packets

Which of the following best illustrates a social engineering attack?

• Sending a phishing email to trick users into revealing passwords

• Exploiting a software vulnerability

• Performing a brute-force attack on a password

• Sniffing network traffic

Which of the following is a likely impact of a successful VLAN hopping attack?

• Unauthorized access to traffic on another VLAN

• Complete shutdown of the network

• Encryption of all VLAN traffic

• Disabling of all network switches

What is a common result of DNS poisoning on a user’s browsing experience?

• Users are redirected to malicious websites instead of legitimate ones

• Users experience faster internet speeds

• Users are unable to access any websites

• Users’ computers shut down automatically