Network-Security-Essentials 無料問題集「WatchGuard Network Security Essentials for Locally-Managed Fireboxes」
Match the "network server to the protocol and port it uses."
正解：
Explanation:
DHCP (Dynamic Host Configuration Protocol):DHCP operates over UDP ports 67 and 68. Port 67 is used by the DHCP server to listen for client requests, and port 68 is used by the DHCP client. This allows devices to automatically receive IP addresses and other network configuration details on a network, essential for automating IP management. [Referenced from multiple sources on network fundamentals] SMTP (Simple Mail Transfer Protocol):SMTP uses TCP port 25 for sending emails from client to server or between mail servers. SMTP is integral for email transmission, allowing efficient communication across mail servers within and outside organizational networks. [Referenced in standard protocols documentation in network management guides] DNS (Domain Name System):DNS typically runs on UDP port 53 for standard queries, with TCP/53 used for zone transfers and other larger requests. DNS is critical for resolving human-readable domain names into IP addresses, which allows users to connect to websites using easily remembered names rather than numerical IP addresses. [Foundational knowledge as detailed in network security and management resources] HTTPS (Hypertext Transfer Protocol Secure):HTTPS, an encrypted version of HTTP,operates on TCP port 443. It provides secure communication over the internet by encrypting data between the client and server using SSL/TLS, protecting data integrity and privacy. [Security essentials for network communications as found in secure web traffic documentation] HTTP (Hypertext Transfer Protocol):HTTP operates on TCP port 80 and is used for unencrypted web traffic. HTTP is the foundation of data exchange on the World Wide Web, supporting basic client-server interactions for retrieving resources from the web. [Basic networking knowledge referenced across multiple network essentials texts]