CompTIA JK0-023 Exam
CompTIA Network+ certification (Page 45 )

Updated On: 19-Jan-2026

Which of the following OSI model layers is used for logical addressing?

  1. Physical
  2. Transport
  3. Network
  4. Data link

Answer(s): C



At which layer of the OSI and TCP/IP model would HTTP and FTP be found?

  1. Application
  2. Network
  3. Session
  4. Data Link

Answer(s): A



Which of the following protocols is MOST commonly associated with VoIP?

  1. LDAP
  2. HTTPS
  3. SIP
  4. SCP

Answer(s): C



A company would like their technicians to be able to connect to employee desktops remotely via RDP. Which of the following default port numbers need to be opened on the firewall to support this?

  1. 143
  2. 443
  3. 3389
  4. 8080

Answer(s): C



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