Free CompTIA JK0-023 Exam Dumps Questions & Answers

Which of the following tools would Lisa, a technician, BEST use to trace a wire through an area where multiple wires of the same color are twisted together?

• A.  Cable tester
• B.  Cable crimper
• C.  Punch down tool
• D.  Toner probe

Users are reporting that some Internet websites are not accessible anymore. Which of the following will allow the network administrator to quickly isolate the remote router that is causing the network communication issue, so that the problem can be reported to the appropriate responsible party?

• A.  Ping
• B.  Protocol analyzer
• C.  Dig
• D.  Tracert

Users have reported issues accessing an Internet website. The network technician wants to verify network layer connectivity. Which of the following tools can provide the verification?

• A.  arp
• B.  route
• C.  netstat
• D.  ping

Which of the following describes blocking traffic based upon the Layer 3 sources address of the traffic?

• A.  Port filtering
• B.  MAC filtering
• C.  Application filtering
• D.  IP filtering

Which of the following DNS record types will be used for mail transfer if the MX record is not found?

• A.  AAAA
• B.  PTR
• C.  CNAME
• D.  A