Free CompTIA JK0-023 Exam Braindumps (page: 25)

A user reports intermittent network connectivity from their desktop PC. A technician determines the cause to be a bad wall jack and fixes the jack. Which of the following should the technician do NEXT?

  1. Test the theory
  2. Question the user
  3. Document the outcome
  4. Verify functionality

Answer(s): D



Which of the following services are affected by closing the default ports of 80 and 21 via ACL on a company router?

  1. FTP and basic Internet traffic
  2. HTTPS and IMAP traffic
  3. DNS and TELNET traffic
  4. VPN and RDP traffic

Answer(s): A



Which of the following protocols would the network administrator use to protect login credentials when accessing a router terminal session?

  1. SCP
  2. SNMPv3
  3. SSL
  4. SSH

Answer(s): D



Layers 5, 6, and 7 from the OSI model correspond to which of the following layers of the TCP/IP model?

  1. Transport
  2. Application
  3. Internet
  4. Network Interface

Answer(s): B






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