CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 691:

  Which of the following port numbers needs to be open on a frewall to allow FTP trafc?

  A. 21
  B. 22
  C. 23
  D. 25
  A. 21

• Question 692:

  Kimf a userf cannot access the network using wireless. Which of the following is MOST likely the cause?

  A. TXRX is reversed
  B. Faulty crossover cable
  C. Incorrect WEP key
  D. A short in the cable pairs
  C. Incorrect WEP key

• Question 693:

  Karenf a new employeef is unable to get to the department's server while other employees are having no issues. The network administrator has verifed that Karen has permission to the server and the workstaton is able to get to other network resources. Which of the following is the MOST likely cause?

  A. The department server is having network issues.
  B. Karenns workstaton is a part of the wrong VLAN.
  C. The onboard NIC has outdated drivers installed.
  D. The wireless NIC has not been enabled for Karenns workstaton.
  B. Karenns workstaton is a part of the wrong VLAN.

• Question 694:

  Annf a home userf wishes to confne a wireless network to devices ONLY inside of her house. Which of the following will accomplish this?

  A. Decreasing radio strength
  B. MAC fltering
  C. WEP encrypton
  D. SSID broadcast disable
  A. Decreasing radio strength

• Question 695:

  Which of the following are standard fber cable connector types? (Select TWO).

  A. RJ-11
  B. F-connector
  C. MTRJ
  D. DB-9
  E. ST
  C. MTRJ
  E. ST

• Question 696:

  A technician has resolved a tcket to fx a userns printer and has verifed that the user is able to print with no issues. Which of the following acton steps should the technician perform FIRST?

  A. Document fndings and outcomes
  B. Establish a theory of probably cause
  C. Upgrade the printer drivers
  D. Close out the service tcket
  A. Document fndings and outcomes

• Question 697:

  Which of the following confguratons of a wireless network would be considered MOST secure?

  A. WEP using MAC Filtering
  B. WEP and hiding the SSID
  C. WPA2
  D. WPA TKIP and hiding the SSID
  C. WPA2

• Question 698:

  An organiiaton currently has CAT5e cabling throughout its ofce. Kimf the network technicianf is troubleshootng a new CAT6 run that supports network trafcf but does not meet specifcaton when tested with a TDR. Which of the following is MOST likely the cause?

  A. Improper grounding
  B. TXRX reversed
  C. Incorrect terminaton
  D. Outdated NIC drivers
  C. Incorrect terminaton

• Question 699:

  Which of the following WAN technologies utliies an optcal SONET carrier and has a maximum bandwidth of 155.54Mbps?

  A. DS3
  B. E3
  C. OC3
  D. T3
  C. OC3

• Question 700:

  Which of the following is the BEST way to prevent new users from connectng to a wireless access pointf but stll allow already connected users to contnue to connect?

  A. Create a MAC flter containing the current users.
  B. Turn of SSID broadcast.
  C. Change the encrypton type to AES 256-bit for current users.
  D. Reduce the signal strength to 0 percent.
  A. Create a MAC flter containing the current users.