Which layer of the OSI model is responsible for logical addressing?
a) Data Link b) Physical c) Network d) Transport
Correct Answer: c) Network
Explanation: The Network layer handles logical addressing, such as IP addresses, and routes data across networks.
Question 42
What type of attack sends multiple requests to a server, overwhelming it and causing it to crash?
a) Man-in-the-middle attack b) Spoofing attack c) Phishing attack d) Denial of Service attack
Correct Answer: d) Denial of Service attack
Explanation: A Denial of Service (DoS) attack overwhelms a server with traffic, making it unavailable to legitimate users.
Question 43
What protocol is commonly used to transfer files between computers over a network?
a) HTTP b) FTP c) SSH d) DNS
Correct Answer: b) FTP
Explanation: FTP (File Transfer Protocol) is used to transfer files between computers over a network.
Question 44
Which of the following is a type of wireless encryption protocol?
a) AES b) SSL c) WPA2 d) SSH
Correct Answer: c) WPA2
Explanation: WPA2 (Wi-Fi Protected Access 2) is a wireless encryption protocol used to secure Wi-Fi networks.
Question 45
What is the purpose of a honeypot in network security?
a) To monitor user activity b) To encrypt sensitive data c) To attract and analyze attacks d) To block malware
Correct Answer: c) To attract and analyze attacks
Explanation: A honeypot is a decoy system designed to attract attackers and analyze their behavior without putting the real network at risk.
Question 46
Which network topology offers the most redundancy and fault tolerance?
a) Star b) Ring c) Bus d) Mesh
Correct Answer: d) Mesh
Explanation: In a mesh topology, each device is connected to every other device, providing high redundancy and fault tolerance
Question 47
What is the function of the ICMP protocol?
a) To route data between networks b) To provide reliable data transmission c) To send error messages and operational information d) To encrypt network traffic
Correct Answer: c) To send error messages and operational information
Explanation: ICMP (Internet Control Message Protocol) is used to send error messages and information about network conditions, such as with the ping command.
Question 48
What does a subnet mask determine in an IP address?
a) The default gateway b) The class of the IP address c) The division between the network and host portions of an address d) The IP version
Correct Answer: c) The division between the network and host portions of an address
Explanation: A subnet mask determines which part of an IP address is used for the network and which part is used for the host.
Question 49
What does a DHCP server provide to a network device?
a) A MAC address b) A hostname c) An IP address and other network configuration d) Encryption
Correct Answer: c) An IP address and other network configuration
Explanation: A DHCP server automatically assigns an IP address, subnet mask, gateway, and DNS server settings to devices on a network.
Question 50
Which OSI layer is responsible for establishing and maintaining connections between devices?
a) Transport b) Data Link c) Session d) Presentation
Correct Answer: c) Session
Explanation: The Session layer manages and maintains connections between devices during communication.