FridayNetSecurityQuiz

Which of the following network protocols does not belong with the others based on the layer of the OSI model they operate in?

• HTTP

• SMTP

• FTP

• ICMP

Answer explanation

Answer: D. ICMP (as it operates at the Network layer, whereas the other options operate at the Application layer of the OSI model. HTTP, SMTP, and FTP are all application layer protocols used for different purposes, such as web browsing, email communication, and file transfer, respectively.)

Which of the following network protocols is the odd one out because it operates at a different layer of the OSI model?

• TCP

• UDP

• SMTP

Answer explanation

SMTP is an application layer protocol used for email communication.)

Which type of malware is designed to lock or encrypt files on a victim's computer until a ransom is paid?

• Trojan

• Worm

• Ransomware

• Adware

What is a network port?

• A physical connector on a computer or other network device used to connect to a network cable

• A unique number assigned to a network device for identification purposes

• A software construct used to identify a specific communication channel for network traffic

What is a MAC address?

• a. The Internet Protocol (IP) address of a network device

• b. The physical address of a network device

• c. The domain name of a network device

What is the purpose of the ARP protocol?

• To translate domain names into IP addresses

• To identify the physical address of a network device

• To route network traffic between different subnets

What is the correct order of the seven layers of the OSI model?

• Physical, Presentation, Session, Transport, Network, Data Link, Application

• Presentation, Physical, Session, Data Link, Network, Transport, Application

• Application, Presentation, Session, Transport, Network, Data Link, Physical

• Data Link, Network, Transport, Session, Presentation, Application, Physical

What is the OSI model?

• A networking protocol used for transferring files between computers

• A programming language used for web development

• A conceptual model used to standardize the communication functions of a computer network

Which of the following statements about User Datagram Protocol (UDP) is incorrect?

• UDP is a connectionless protocol

• UDP is faster than TCP because it has less overhead

• UDP guarantees delivery of packets

• UDP is used for real-time applications like video streaming and online gaming

Answer explanation

c. UDP guarantees delivery of packets. (This statement is incorrect; UDP does not provide reliability or guarantee that packets will be delivered.)

Which of the following statements about HTTPS (Hypertext Transfer Protocol Secure) is incorrect?

• HTTPS uses SSL/TLS to encrypt the connection between the client and the server

• HTTPS uses port 443 for secure communication

• HTTPS is faster than HTTP because it uses less overhead

• HTTPS helps to prevent man-in-the-middle attacks

Answer explanation

Answer: c. HTTPS is faster than HTTP because it uses less overhead. (This statement is incorrect; HTTPS actually adds some overhead due to the encryption and decryption process.)