Which protocol is primarily responsible for automatically assigning IP addresses to devices on a network?, A. FTP, B. DNS, C. DHCP, D. SMTP, What is the main function of DNS in a computer network?, A. Encrypting data, B. Translating domain names into IP addresses, C. Transferring files between systems, D. Synchronizing clocks across devices, 3. Which pair correctly matches a protocol with its default port number?, A. HTTP – 22, B. FTP – 21, C. SMTP – 443, D. POP – 80, 4. Why is HTTPS considered more secure than HTTP?, A. It uses smaller packets, B. It compresses data automatically, C. It encrypts communication using SSL/TLS, D. It blocks DNS traffic, 5. Which protocol would most likely be used to retrieve emails from a remote mail server?, A. POP, B. FTP, C. NTP, D. DHCP, 6. A network administrator wants all systems to display the same accurate time. Which protocol should be configured?, A. SMTP, B. DNS, C. NTP, D. IMAP, 7. Which protocol is most directly associated with sending email messages?, A. SMTP, B. POP3, C. DNS, D. NFS, 10. Which statement best describes NFS?, A. It manages printer queues, B. It enables file sharing across a network, C. It translates URLs into IP addresses, D. It allocates bandwidth dynamically, 11. A browser displays a warning that a website certificate is invalid. Which protocol is primarily involved?, A. HTTPS, B. FTP, C. DHCP, D. POP3, 12. Which protocol commonly uses port 53?, A. DNS, B. FTP, C. SMTP, D. NTP, 13. What is the purpose of SNMP in a network environment?, A. Delivering web pages, B. Monitoring and managing network devices, C. Encrypting file transfers, D. Synchronizing email servers, 15. Why might an organization prefer HTTPS instead of HTTP for online banking?, A. HTTPS uses less bandwidth, B. HTTPS supports larger files, C. HTTPS provides encrypted communication, D. HTTPS eliminates the need for DNS, 16. Which protocol is responsible for uploading and downloading files between systems?, A. FTP, B. SMTP, C. SNMP, D. DHCP, 17. Which protocol is most likely operating if a device receives an IP address immediately after joining a Wi-Fi network?, A. SSH, B. DHCP, C. POP3, D. NFS, 18. Which scenario best demonstrates the use of DNS?, A. Downloading an attachment from email, B. Accessing a website using a domain name, C. Encrypting banking transactions, D. Sharing printers across a network, 19. Which protocol is especially important in large enterprises for centralized monitoring of routers and switches?, A. POP3, B. SNMP, C. HTTPS, D. FTP, 20. What would most likely happen if DNS services failed across an organization?, A. Devices could not receive IP addresses, B. Websites could not be reached using domain names, C. Files could no longer be uploaded, D. Email attachments would become corrupted, 22. Which protocol pair is commonly used together for email communication?, A. SMTP and POP3, B. FTP and DNS, C. SNMP and DHCP, D. HTTPS and NTP, A company needs employees to access shared files stored on a central Linux server. Which protocol would be most suitable?, A. NFS, B. SMTP, C. DNS, D. HTTPS, 25. Which statement best summarizes the relationship between protocols and ports?, A. Every protocol uses the same port, B. Ports help identify specific services and communication processes, C. Ports are only required for wireless communication, D. Protocols replace the need for IP addresses.

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