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Zorluk: KolayNetworking Ports and Protocols

A system administrator is configuring network firewall rules for a web server host that must accept both standard unencrypted web browsing traffic and secure encrypted web browsing traffic. Which of the following port numbers must be permitted through the firewall to allow this functionality? (Select TWO.)

  1. Port 80Cevap
  2. Port 443Cevap
  3. C
    Port 53
  4. D
    Port 22

Cevap

Port 80 (HTTP) and Port 443 (HTTPS) must be allowed through the firewall.
Port 80 is the standard port designated for HTTP (unencrypted web traffic), and Port 443 is the standard port for HTTPS (secure, encrypted web traffic). Allowing both ports enables web clients to connect over standard HTTP as well as secure HTTPS.

Adım Adım Çözüm

1
Identify the protocol used for standard unencrypted web traffic.
Unencrypted web traffic utilizes HTTP on TCP port 80.
HTTP is the standard protocol for serving unencrypted web content.
2
Identify the protocol used for secure encrypted web traffic.
Encrypted web traffic utilizes HTTPS on TCP port 443.
HTTPS encrypts web traffic over TLS/SSL on port 443.

Anahtar Kavram

Standard Web Service Ports (HTTP 80 and HTTPS 443)
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