CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 501:

  A network administrator must ensure that both the server and the client are authentcated to the wireless system before access is granted. Which of the following should be implemented to meet this requirement?

  A. EAP-LEAP
  B. MAC ACL
  C. EAP-TTLS
  D. MS-CHAPv2
  C. EAP-TTLS

• Question 502:

  Jeff an administratorf has just fnished installing a new switch and connected two servers with IPs of 192.168.105.20 and .30. The servers are able to communicate with each otherf but are unable to reach the Internet. Jef sees the following informaton in the switch confguraton: interface VLAN 105 IP address 192.168.105.5 255.255.255.0 Jef is able to ping the router at 192.168.105.1 from the switch. Which of the following is the MOST likely cause of the problem?

  A. The subnet mask is incorrect.
  B. A routng loop has occurred.
  C. Jef used a crossover cable to connect the switch to the gateway.
  D. The server is missing default-gateway informaton.
  D. The server is missing default-gateway informaton.

• Question 503:

  A company has been given a Class C address to be utliied for all devices. The company has several subnets and the largest subnet has 15 hosts. Which of the following represents the MINIMUM CIDR notaton of this subnet mask?

  A. /26
  B. /27
  C. /28
  D. /29
  B. /27

• Question 504:

  An IP address is encapsulated at which of the following layers of the OSI model?

  A. Transport
  B. Data link
  C. Network
  D. Applicaton
  C. Network

• Question 505:

  Which of the following wireless standards operates on the same frequency as 802.11a?

  A. Compatble with 802.11b wireless networks
  B. Compatble with 802.11g wireless networks
  C. Compatble with 802.11i wireless networks
  D. Compatble with 802.11n wireless networks
  D. Compatble with 802.11n wireless networks

• Question 506:

  Which of the following TCP ports are used by FTP? (Select TWO).

  A. 20
  B. 21
  C. 22
  D. 23
  E. 25
  F. 80
  A. 20
  B. 21

• Question 507:

  An IP address assigned from a DHCP server is said to be which of the following?

  A. Hybrid
  B. Dynamic
  C. Secure
  D. Statc
  B. Dynamic

• Question 508:

  A technician is terminatng a new run of network cables to a 110 block. Which of the following tools would the technician use?

  A. Loopback plug
  B. Crimper tool
  C. Punch down tool
  D. Cable tester
  C. Punch down tool

• Question 509:

  Which of the following methods limits access to a network based on characteristcs of the network card?

  A. IP fltering
  B. MAC fltering
  C. Port fltering
  D. Encrypton
  B. MAC fltering

• Question 510:

  A mobile user is no longer able to access network resources. Jeff the network technicianf is unable to ping the userns workstaton. Which of the following commands would MOST likely be used on that workstaton to verify its current network setngs?

  A. net share
  B. hostname
  C. ipconfg
  D. tracert
  C. ipconfg