CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 641:

  A clientns computer is unable to access any network resources. Which of the following utlites can a technician use to determine the IP address of the clientns machine?

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

• Question 642:

  Which of the following should be mitgated by employing proper coding techniques when developing sofware?

  A. Distributed denial of service atacks
  B. Bufer overfows
  C. War driving
  D. Packet snifng
  B. Bufer overfows

• Question 643:

  A technician is reviewing the following company diagram to determine proper connectvity setngs:

  

  Which of the following device confguratons is out of specifcatons?

  A. LaptopC
  B. ServerE
  C. LaptopB
  D. ServerA
  E. PC1
  D. ServerA

• Question 644:

  Joef a technicianf has identfed a problemf established and confrmed a theoryf and has atempted to resolve the problem. Joef howeverf does not appear to have the rights to make the needed changes. Which of the following should he do NEXT?

  A. Re-establish a new theory.
  B. Gather more informaton.
  C. Establish a plan of acton.
  D. Escalate the problem.
  D. Escalate the problem.

• Question 645:

  Afer a technician has identfed the problem and its impactf which of the following steps should be performed NEXT?

  A. Implement preventatve measures.
  B. Establish a plan of acton to resolve the problem.
  C. Establish a theory of probable cause.
  D. Implement the soluton or escalate as necessary.
  C. Establish a theory of probable cause.

• Question 646:

  A technician notces a newly installed CAT5 cable is longer than the standard maximum length. Which of the following problems would this MOST likely cause?

  A. Split cable
  B. EMI
  C. DB loss
  D. Crosstalk
  C. DB loss

• Question 647:

  A network administrator is confguring PXE boot to reimage a computer lab. Which of the following must be confgured on the existng DHCP server to specify the IP address of the imaging server from which the clients must boot?

  A. Scope
  B. Reservaton
  C. Opton
  D. Lease
  C. Opton

• Question 648:

  A technician has received a trouble tcket from a user who has intermitent wireless access. Moving the computer farther from the WAP results in a more stable connecton. Which of the following is MOST likely the cause of this instability?

  A. Wrong encrypton type
  B. SSID mismatch
  C. Signal bounce
  D. Incorrect channel
  C. Signal bounce

• Question 649:

  An administrator has set up several IPSec and SSL tunnels to terminate on a single device. Which of the following has the administrator deployed?

  A. Proxy Server
  B. Load Balancer
  C. VPN Concentrator
  D. Web-Applicaton Firewall
  C. VPN Concentrator

• Question 650:

  Which of the following protocols would be MOST likely found to be running on a device in a SOHO environment?

  A. BGP
  B. SONET
  C. IPSec
  D. OSPF
  C. IPSec