Examkin

Soru

Zorluk: Çok zorMultifunction Devices and Printer Configuration

A network technician is tasked with hardening print infrastructure for a financial firm. The requirement dictates that all print jobs sent from client workstations to a newly deployed multifunction device (MFD) must be fully encrypted in transit across subnets using IPPS (Internet Printing Protocol Secure). The technician installs an enterprise-issued SSL/TLS certificate onto the MFD. However, when users attempt to print over IPPS, the print spooler reports a certificate trust error and drops the job. Which of the following configuration actions should the technician perform to successfully enable encrypted printing without lowering security requirements?

  1. Deploy the enterprise root CA certificate to the trusted root store on client workstations and verify TCP port 631 is open across network firewalls.Cevap
  2. B
    Reconfigure the workstation printer port to use HTTP transport over TCP port 80 to bypass certificate revocation list checks.
  3. C
    Revert the MFD transport protocol configuration to LPR/LPD over TCP port 515 and enable IPsec tunneling on the local network switch.
  4. D
    Change client workstation network addresses to APIPA assignments to bypass domain security certificate validation policies.

Cevap

Deploy the enterprise root CA certificate to the trusted root store on client workstations and verify TCP port 631 is open across network firewalls.
The correct answer addresses the root cause of the SSL/TLS trust failure. IPPS (Internet Printing Protocol Secure) uses encryption over TCP port 631. For clients to validate the server certificate installed on the MFD, the root certificate of the issuing Certificate Authority (CA) must be present in the client workstation's Trusted Root Certification Authorities store.

Adım Adım Çözüm

1
Identify the protocol and port requirements for IPPS.
IPPS requires SSL/TLS encrypted traffic over standard TCP port 631.
Standard IPP uses TCP port 631 over HTTP, while IPPS encapsulates IPP within TLS over TCP port 631 (or HTTPS over 443 depending on implementation, but standard IPPS port is 631).
2
Diagnose the certificate validation failure.
The workstations do not trust the private internal Certificate Authority that signed the MFD's server certificate.
When a TLS handshake takes place, the client validates the server's certificate chain against its local Trusted Root Certification Authorities store.
3
Apply the appropriate remediation while retaining encryption integrity.
Distribute the root CA certificate to all client workstations via Group Policy or MDM and ensure firewall rules permit TCP port 631 traffic between client subnets and the MFD.
This establishes mutual trust for the TLS connection while meeting all compliance and security directives.

Anahtar Kavram

IPPS Configuration and TLS Certificate Trust Verification
Tahmini Süre:2m 0s
Bu soruyu puanla

Konular

Multifunction Devices and Printer Configuration

Bu konudan daha fazla soru