1. What is the purpose of Network Address Translation (NAT) in networking? Encrypting network traffic Translating private IP addresses to public IP addresses Assigning public IP addresses to devices Authenticating users on the network 2. What is the purpose of ARP (Address Resolution Protocol) in networking? Resolving MAC addresses to IP addresses Managing network routing Encrypting data traffic Assigning IP addresses to devices 3. What protocol is commonly used for securely transferring files between a local and a remote system? SMTP FTP SNMP POP3 4. What is the purpose of the OSI model in networking? Provide a framework for understanding networking concepts Encrypt data traffic Assign IP addresses to devices Manage network devices 5. Which networking topology involves each device being connected to exactly two other devices, creating a closed loop? Mesh Bus Ring Star 6. Which IP address class has the default subnet mask of 255.0.0.0 and is used for very large networks? Class B Class C Class A Class D 7. What is the primary purpose of a subnet mask in networking? Encrypt network traffic Determine the physical location of devices Identify the network portion of an IP address Assign IP addresses to devices 8. What is the purpose of ICMP (Internet Control Message Protocol) in networking? Encrypting data traffic Assigning IP addresses to devices Reporting errors and operational information Managing network routing 9. In a TCP/IP network, what is the function of the Domain Name System (DNS)? Encrypting data traffic Resolving human-readable domain names to IP addresses Assigning IP addresses to devices Managing network access control 10. What is the purpose of a default gateway in networking? Assign IP addresses to devices Provide a path for traffic to exit the local network Translate between private and public IP addresses Encrypt network traffic 11. Which networking device operates at Layer 3 of the OSI model and makes forwarding decisions based on IP addresses? Router Hub Access Point Switch 12. Which networking component operates at Layer 4 of the OSI model and provides reliable, connection-oriented data communication? Router Switch Transport Layer Hub 13. Which of the following IP address ranges is reserved for private networks and cannot be routed on the internet? 169.254.0.0 – 169.254.255.255 10.0.0.0 – 10.255.255.255 192.168.0.0 – 192.168.255.255 172.16.0.0 – 172.31.255.255 14. Which of the following devices operates at Layer 1 of the OSI model and connects multiple devices in a network, often leading to collisions? Switch Access Point Router Hub 15. What protocol is commonly used for sending email messages between mail servers? DHCP HTTP FTP SMTP 16. Which networking component operates at Layer 2 of the OSI model and uses MAC addresses to forward frames within a local network? Switch Hub Gateway Router 17. Which networking topology involves a central node connecting to multiple other nodes, forming a star-like structure? Ring Star Mesh Bus 18. In a TCP/IP network, what is the function of the subnet mask? Determine the physical location of devices Assign IP addresses to devices Convert domain names to IP addresses Identify the network portion of an IP address 19. Which protocol is used to automatically assign IP addresses to devices in a network, without manual configuration? FTP DHCP DNS SNMP 20. Which subnet mask would be appropriate for an IP address range of 192.168.10.1 to 192.168.10.254? 255.255.255.192 255.255.0.0 255.0.0.0 255.255.255.0 Loading … Question 1 of 20
