CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 251:

  The security measure used to reduce vulnerabilites for MOST network devices that require regular applicaton and monitoring is:

  A. Patch management.
  B. Security limitatons.
  C. Documentaton.
  D. Social engineering.
  A. Patch management.

• Question 252:

  Which of the following will allow a technician to monitor all network trafc when connected to a mirror port?

  A. VLAN tags
  B. SNMP
  C. Packet snifer
  D. Syslog
  C. Packet snifer

• Question 253:

  A company would like to use the enterprise RADIUS server to authentcate and identfy their secure wireless users. Which of the following standards should the company use to facilitate this?

  A. Stateful inspecton
  B. WEP
  C. WPA
  D. Open with EAP
  C. WPA

• Question 254:

  Which of the following is the diference between 802.11b and 802.11g?

  A. Distance
  B. Frequency
  C. Speed
  D. Transmission power
  C. Speed

• Question 255:

  A network technician needs to confgure a port on a switch to provide connectvity and electrical support to a WAP being installed in a warehouse. Which of the following features needs to be confgured on the switch?

  A. STP
  B. PoE
  C. VTP trunking
  D. Port forwarding
  B. PoE

• Question 256:

  Which of the following frewall rules will block destnaton telnet trafc to any host with the source IP address 1.1.1.2/24?

  A. Deny any source host on source port 23 to destnaton any
  B. Deny any source network 1.1.1.0/24 to destnaton any on port 23
  C. Deny source host 1.1.12 on source port 23 to destnaton any
  D. Deny any source network 1.1.1.0/24 with source port 23 to destnaton any
  B. Deny any source network 1.1.1.0/24 to destnaton any on port 23

• Question 257:

  Annf a new userf is unable to communicate on the network from her computer. A technician has verifed that the cables are functoning properly. Based on the informaton belowf which acton should the technician take to correct Annns problem? Computer_A Switch_A IP: 10.0.0.60 Int VLAN10 SM: 255.255.255.0 IP address 10.0.0.1/28 GW: 10.0.0.1 Speed 100 Duplex Full

  A. Change the duplex on the switch interface to half
  B. Change the speed on the switch interface to 10Mbps
  C. Change the subnet mask of the computer to 255.255.255.240
  D. Change the IP address of the computer to 10.0.0.12
  D. Change the IP address of the computer to 10.0.0.12

• Question 258:

  Zachf an administratorf needs to install a new 100 foot (30 meter) cable run from an IDF switch to the MDFf through a room that has a large number of motors. Which of the following would be the BEST cable type to choose?

  A. CAT3
  B. STP
  C. Coaxial
  D. Fiber
  D. Fiber

• Question 259:

  Which of the following is an invalid MAC address?

  A. AA:CE:58:FD:90:08
  B. 44:98:3E:F8:33:23
  C. 56:AD:BX:89:55:54
  D. 94:9E:FE:EE:8C:DF
  C. 56:AD:BX:89:55:54

• Question 260:

  Which of the following siies is the fxed cell length in ATM?

  A. 8 bytes
  B. 53 bytes
  C. 64 kilobytes
  D. 128 kilobytes
  B. 53 bytes