CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 961:

  A user reports that several spots within the companyns ofce have intermitent connectvity issues with the newly installed wireless network. There are several WAPs located around the ofce to provide a strong signal wherever the users are. Which of the following is the MOST likely cause of the problem?

  A. Incompatble network card
  B. Channel overlap
  C. Latency
  D. WEP encrypton
  B. Channel overlap

• Question 962:

  A technician can increase the bandwidth of an 802.11n cell by:

  A. Doubling the channel width.
  B. Enabling diversity.
  C. Disabling MIMO.
  D. Adding a second access point.
  A. Doubling the channel width.

• Question 963:

  Which of the following protocols would Lisaf a technicianf use to disable switch ports automatcally to prevent switching loops?

  A. RIP
  B. OSPF
  C. STP
  D. EGP
  C. STP

• Question 964:

  The network administrator installed a new dipole antenna that extends 100 feet (30.48 meters) from the existng AP. All components are correctf functonalf and installed properly. Howeverf during validatonf there is a very weak signal coming from the antenn

  A. Which of the following is the MOST likely cause of the issue?
  B. The installaton exceeds the link limitatons
  C. The antenna is mounted for vertcal polariiaton
  D. The dBi output of the antenna is too low
  E. The radio is too powerful for the installaton
  A. Which of the following is the MOST likely cause of the issue?

• Question 965:

  A technician is looking to secure an entre network by blocking all non-essental ports. Which of the following devices would BEST provide this functonality?

  A. Firewall
  B. Honeynet
  C. IDS
  D. IPS
  A. Firewall

• Question 966:

  Which of the following protocols works at the LOWEST layer of the OSI model?

  A. L2TP
  B. PPTP
  C. ISAKMP
  D. IPSec
  A. L2TP

• Question 967:

  Kurtf a technicianf working remotely cannot connect to the database server. The server does not respond when he tries to ping it. Kurt wants to determine which network device is preventng ping from responding. Which of the following commands should he use to determine this?

  A. tracert
  B. nslookup
  C. dig
  D. ipconfg
  A. tracert

• Question 968:

  A user wants to connect seven PCs together for a game night. Which of the following should the user install to help with this task?

  A. Media convertor
  B. Switch
  C. Firewall
  D. Bridge
  B. Switch

• Question 969:

  Which of the following represents the physical address of a network access card?

  A. FF01:D2:C4:87::11
  B. 00-30-48-83-9B-C8
  C. 08-9D-35-22-L2-34-FF-21
  D. 2D1A:C3:0:1C3B:2AD:FF:FEBE:9D3A
  B. 00-30-48-83-9B-C8

• Question 970:

  Which of the following can MOST likely cause intermitent connecton problems with a CAT5 network cable?

  A. Cable has been looped too many tmes.
  B. Cable has a twist te atached too close to the connector.
  C. Cable is too warm.
  D. Cable is run too close to a fuorescent light.
  D. Cable is run too close to a fuorescent light.