Free JK0-023 Exam Braindumps
CompTIA Network+ certification Questions 511–515 (page: 104)

Updated On: 10-Feb-2026

Which of the following tools will scan a network for hosts and provide information on the installed operating system?

  1. DOCSIS
  2. NMAP
  3. IMAP
  4. BERT

Answer(s): B



Which of the following wireless security measures, although widely implemented, does not provide strong security?

  1. IPSec
  2. WPA2
  3. MAC address filtering
  4. 802.1x

Answer(s): C



Which of the following is a form of encrypting packets for safe, secure data transmission within a network?

  1. RAS
  2. PPTP
  3. IPSec
  4. ICA

Answer(s): C



Which of the following allows a malicious attacker to view network traffic if the attacker is on the same network segment as Joe, an administrator?

  1. DoS attack
  2. Man-in-the-middle attack
  3. Smurf attack
  4. Xmas attack

Answer(s): B



Lisa, a technician, is asked to not allow FTP traffic on a network. Which of the following ports should be blocked on the firewall to achieve this?

  1. 21
  2. 22
  3. 23
  4. 25

Answer(s): A



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