CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 791:

  Which of the following wireless standards has a MAXIMUM speed of only 1Mbps?

  A. IrDA
  B. 802.11b
  C. Bluetooth
  D. 802.11g
  C. Bluetooth

• Question 792:

  A technician has spent most of the day replacing a server running DHCP. Some of the users have begun to call the help desk statng that Internet connecton stopped working even afer rebootng. Upon investgatonf the usersn PCs with issues all have IP addresses that start with 169.254.x.x. The technician completes the replacement and powers on the new DHCP server. Which of the following is the BEST way to provide the PCs with issues a new IP address?

  A. Statcally assign a legitmate IP addressf and then set the PCsn NICs to DHCP
  B. Inform each user to replace 169.254 with 192.168
  C. Wait fve minutes untl the PC resends a DHCP request
  D. Run netstat on each PC and then reboot into safe mode
  C. Wait fve minutes untl the PC resends a DHCP request

• Question 793:

  Several users from the same building are reportng connectvity issues. The SFP at that buildingns IDF switch is showing a link lightf but there is no link light to the corresponding switchns SFP at the MDF. Which of the following is the MOST likely cause?

  A. A crossover cable is being used.
  B. DB loss is too high on all strands.
  C. Only TX or RX strand is working.
  D. TX and RX are reversed.
  C. Only TX or RX strand is working.

• Question 794:

  No link lights on a switchns SFP are functoningf so the network technician re-terminates the end. Afer testng the cablef the tester is showing a db loss of -9. Which of the following types of cable is MOST likely being tested?

  A. Fiber
  B. CAT3
  C. CAT5e
  D. CAT6a
  A. Fiber

• Question 795:

  Lisaf a technicianf is asked to install a wireless router in a companyns public caf?are

  A. The company wants the public to be able to connect to the wireless network with minimal securityf but not be able to connect to the private internal network. Which of the following frewall rules would BEST accomplish this?
  B. Content fltering on the wireless access point
  C. Allow trafc from the wireless access point
  D. Block trafc from the wireless access point
  E. Packet fltering on the wireless access point
  C. Allow trafc from the wireless access point

• Question 796:

  The systems administrator has assigned an IP address and default gateway to a standard Layer 2 switch. Which of the following would be the primary purpose of doing this?

  A. Allow VLAN routng
  B. Enable packet fltering on the switch
  C. Allow remote administraton of the switch
  D. Enable MAC fltering on the switch
  C. Allow remote administraton of the switch

• Question 797:

  The network interface layer of the TCP/IP model corresponds with which of the following layers of the OSI model? (Select TWO).

  A. Transport layer
  B. Network layer
  C. Session layer
  D. Physical layer
  E. Presentaton layer
  F. Data link layer
  D. Physical layer
  F. Data link layer

• Question 798:

  Which of the following network topologies is ONLY possible between two users?

  A. Star
  B. Client-server
  C. Hybrid
  D. Peer-to-peer
  D. Peer-to-peer

• Question 799:

  Jeff a technicianf needs multple networksf high speedsf and redundancy on a system. Which of the following confguratons should Jef consider for these requirements? (Select TWO).

  A. Routng table
  B. Next hop
  C. Port mirroring
  D. Port monitoring
  E. VLANs
  C. Port mirroring
  E. VLANs

• Question 800:

  Karenf a userf on a wireless network reports an issue with network access while using a cordless phone. Which of the following is the MOST likely cause?

  A. Encrypton type
  B. Channel selecton
  C. Antenna placement
  D. Signal strength
  B. Channel selecton