CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 291:

  A user reports intermitent network connectvity. Which of the following should a technician confgure on the managed switch to help troubleshoot this issue?

  A. SMTP
  B. SNTP
  C. SNMP
  D. SNAT
  C. SNMP

• Question 292:

  Given a subnet mask of 255.255.255.0f how many usable IP addresses would be in that subnet?

  A. 250
  B. 254
  C. 255
  D. 256
  B. 254

• Question 293:

  A network technician is confguring a new frewall for placement into an existng network infrastructure. The existng network is connected to the Internet by a broadband connecton. Which of the following represents the BEST locaton for the new frewall?

  A. The frewall should be placed between the Internet connecton and the local network.
  B. The frewall should be placed inside the local network.
  C. The frewall should be placed between the broadband connecton and the Internet.
  D. The frewall should be placed in the Internet cloud.
  A. The frewall should be placed between the Internet connecton and the local network.

• Question 294:

  Which of the following is associated with DNS reverse lookup iones?

  A. CNAME
  B. TXT
  C. PTR
  D. MX
  C. PTR

• Question 295:

  Which of the following exist at layer three of the OSI model? (Select TWO).

  A. NIC
  B. Switch
  C. Frame
  D. Packet
  E. Router
  F. Cable
  D. Packet
  E. Router

• Question 296:

  Creatng a uniform user environment throughout the network can BEST be achieved by using which of the following?

  A. Honeypots
  B. Virtual switches
  C. Virtual PBX
  D. Virtual desktops
  D. Virtual desktops

• Question 297:

  Which of the following components of wiring distributon is referred to as the core communicatons closet for an organiiaton?

  A. MDF
  B. Smart jack
  C. IDF
  D. Demarc extension
  A. MDF

• Question 298:

  Users have been statng that they need to logon to too many applicatons and web apps with diferent credentals that use diferent rule sets. Which of the following would BEST address these concerns?

  A. Alter the domain account login policies to refect the most common applicaton rule sets.
  B. Ensure that the user accounts are properly confgured in domain services.
  C. Implement a sofware soluton that facilitates single sign-on authentcaton.
  D. Increase the tme between mandatory password changes by a factor of three.
  C. Implement a sofware soluton that facilitates single sign-on authentcaton.

• Question 299:

  A client has just leased a new ofce space in a busy commercial building and would like to install a wireless network. Several other tenants are on the same foor. Multple wireless networks are present in the building. Which of the following can be changed on the clientns wireless network to help ensure that interference from other wireless networks is at a minimum?

  A. WPA encrypton key selecton
  B. Channel selecton
  C. Antenna types
  D. Disable SSID
  B. Channel selecton

• Question 300:

  Which of the following wireless security measuresf although widely implementedf does not provide strong security?

  A. IPSec
  B. WPA2
  C. MAC address fltering
  D. 802.1x
  C. MAC address fltering