CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 81:

  An administrator wants to restrict trafc to FTP sites regardless of which PC the request comes from. Which of the following would BEST accomplish this?

  A. An IP fltering ACL
  B. A MAC fltering ACL
  C. A port fltering ACL
  D. A class matching ACL
  C. A port fltering ACL

• Question 82:

  Which of the following can be used to decrypt SSL packets which encapsulate internal network addresses in the payload?

  A. Proxy server
  B. Content flter
  C. Load balancer
  D. VPN concentrator
  D. VPN concentrator

• Question 83:

  Which of the following layers of the OSI model make up the Network Interface layer of the TCP/IP model? (Select TWO).

  A. Applicaton
  B. Physical
  C. Presentaton
  D. Transport
  E. Data Link
  F. Network
  B. Physical
  E. Data Link

• Question 84:

  A company has multple WAPs within close proximity to each other to allow users to move about seamlessly through the building with their laptopsf without losing any connecton. Howeverf this has had the opposite efectf causing any user that is close to two of the access points to constantly reconnect to the wireless network. Which of the following should be changed on all the WAPs to allow this to work as the customer intended?

  A. Change the SSID to be unique for each WAP.
  B. Change the antenna directon to be unique for each WAP.
  C. Change the encrypton method to be unique for each WAP.
  D. Change the channel to be unique for each WAP.
  D. Change the channel to be unique for each WAP.

• Question 85:

  Which of the following switches is used with ARP to display the cache entry for a specifc IP address?

  A. -a
  B. -d
  C. -g
  D. -s
  A. -a

• Question 86:

  Which of the following ports are MOST commonly used to interactvely confgure a networking device? (Select TWO).

  B. 22
  C. 23
  D. 53
  E. 67
  B. 22
  C. 23

• Question 87:

  An administrator has received a recommendaton against deploying WEP as a wireless encrypton protecton scheme. Which of the following is MOST likely the reason?

  A. WEP's IV is too small.
  B. WEP uses RC4 which is easily accessible and not secure.
  C. WEP uses plain text.
  D. WEP is not well supported.
  A. WEP's IV is too small.

• Question 88:

  Which of the following subnet masks indicate a subnet with exactly 254 assignable IP addresses?

  A. 255.0.0.0
  B. 255.255.0.0
  C. 255.255.255.0
  D. 255.255.255.254
  C. 255.255.255.0

• Question 89:

  A network administrator wants to add the frewall rule to allow SSH trafc to the FTP server with the assigned IP 192.168.0.15 from the Internet. Which of the following is the correct frewall rule?

  A. Allow ANY to 192.168.0.15 port 21
  B. Allow ANY to 192.168.0.15 port 22
  C. Allow ANY to 192.168.0.15 port 80
  D. Allow ANY to ANY port ANY
  B. Allow ANY to 192.168.0.15 port 22

• Question 90:

  A user at a small business states that they cannot connect to the Internet via the companyns wireless network every tme their cordless phone rings. Which of the following is MOST likely occurring?

  A. Interference
  B. Incorrect encrypton type
  C. Latency
  D. SSID mismatch
  A. Interference