Network Security and Cryptography Quiz

What is the purpose of NMAP utility?

• To scan for network discovery and system security audit

• To encrypt data in motion

• To establish a secure channel for data exchange

• To prevent wiretapping

What does the 'Filtered' state in NMAP scanning indicate?

• The port is actively accepting connections

• The port is accessible but NMAP cannot determine if it is open or not

• NMAP cannot determine if the port is open or closed due to packet filtering

• The port is accessible but there is no application listening

What is the purpose of a SYN(Stealth) Scan in NMAP?

• To encrypt data at rest

• To establish a three-way handshake connection with a host

• To take advantage of a vulnerability in a target

• To find out if a host is firewall protected

What is the main purpose of cryptography?

• To create and implement secret codes for security

• To prevent wiretapping

• To prevent traffic redirection

• To establish a secure channel for data exchange

What is the main goal of authentication in cryptography?

• To encrypt configuration files from servers

• To verify the identity of a user

• To prevent unauthorized parties from accessing encrypted data

• To hide information in another piece of information

What is the purpose of a VPN?

• To control access to packets based on network address

• To allow users to securely interact with remote machines

• To provide a detailed log of user activities on a device

• To filter traffic between a less trustworthy public network and a protected private network

What is the main function of a firewall?

• To establish a secure channel for data exchange

• To filter traffic between a less trustworthy public network and a protected private network

• To encrypt and encapsulate IP datagrams

• To provide a detailed log of user activities on a device

What is the purpose of AAA Access Security?

• To encrypt data at rest

• To authenticate the identity of a user

• To filter traffic between a less trustworthy public network and a protected private network

• To provide a detailed log of user activities on a device

What is the main goal of a Man-In-The-Middle (MITM) attack?

• To filter traffic between a less trustworthy public network and a protected private network

• To read, modify, and insert messages between two hosts

• To prevent unauthorized parties from accessing encrypted data

• To provide a detailed log of user activities on a device

What is the purpose of a SYN Flood Attack?

• To provide a detailed log of user activities on a device

• To overwhelm a server by sending multiple SYN requests

• To filter traffic between a less trustworthy public network and a protected private network

• To establish a secure channel for data exchange