CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 731:

  A customer's email server is not sending emails. Arrange the troubleshootng steps in the order the technician should perform them:

  Select and Place:

  

  

• Question 732:

  Which of the following atacks would allow an intruder to do port mapping on a companyns internal server from a separate company server on the Internet?

  A. SYN food
  B. Teardrop
  C. Smurf
  D. FTP bounce
  D. FTP bounce

• Question 733:

  Joef a userf reports that his PC is the only one that does not have network connectvity. All the wiring has been tested properly and the problem stll exists. Joe is getng an APIPA address. Which of the following is the MOST likely cause?

  A. Crossover cable is being used
  B. Switch was powered of
  C. PoE is disabled on the port
  D. Port on the switch is disabled
  D. Port on the switch is disabled

• Question 734:

  A user reports that they keep getng disconnected on the wireless network. Afer further investgatonf the technician confrms that this occurs only in that userns ofce. Which of the following would MOST likely cause them to lose their connecton?

  A. Encrypton type
  B. Disabled wireless adapter
  C. SSID mismatch
  D. Interference
  D. Interference

• Question 735:

  Afer a brownoutf Zachf a userf can connect to the internal networkf but not the Internet. Which of the following is the companyns DSL router experiencing that is causing this issue?

  A. Switching loop
  B. Power failure
  C. Broadcast storm
  D. Duplicate IP address
  B. Power failure

• Question 736:

  Which of the following is the correct representaton of an IPv6 address?

  A. ::
  B. 0:0:0:0:0:0:0:0:1
  C. 1:2:3:4:AB:CD:EF
  D. 2001::4860:800f::
  A. ::

• Question 737:

  Management has decided that they want a high level of security. They do not want Internet requests coming directly from users. Which of the following is the BEST recommendaton?

  A. Content flter
  B. Proxy server
  C. Layer 3 switch
  D. Firewall
  B. Proxy server

• Question 738:

  Jeff a customerf shares a building with several other tenants. He reports that an unencrypted wireless network has been getng slower while his Internet trafc has steadily been increasing. Which of the following should be confgured to resolve this problem?

  A. VLAN
  B. MTU
  C. WPA
  D. SSID
  C. WPA

• Question 739:

  Sandyf a technicianf is asked to install a wireless network for two neighboring buildings. Which of the following wireless signals will MOST easily penetrate obstructonsf such as walls and doors?

  A. 802.11a
  B. 802.11g
  C. 802.11n 5GHi
  D. 802.11n 5GHi wide band
  B. 802.11g

• Question 740:

  Kimf a network administratorf should consult which documentaton sources FIRST to determine the cause of recent network issues?

  A. Network map
  B. Cable management
  C. Change management
  D. Asset management
  C. Change management