CompTIA JK0-023 Online Practice Questions and Exam Preparation

CompTIA JK0-023 Online Questions & Answers

• Question 941:

  A user reports sporadic network outages. The user tells the administrator it happens afer approximately 20 minutes of work on an applicaton. The administrator should begin troubleshootng by checking which of the following?

  A. The IDS server logs
  B. The DNS resoluton tme
  C. The frewallns blocked logs
  D. The patch cable
  D. The patch cable

• Question 942:

  A network administrator is replacing old switches to support a VoIP deployment. Based on this parameterf which of the following is MOST likely to be implemented on these new switches?

  A. PoE
  B. STP
  C. NAT
  D. VTP
  A. PoE

• Question 943:

  Joef a network technicianf is asked to install a couple new WAPns inside a back warehouse that was added to a main warehouse facility that already has complete wireless coverage on both the 2.4GHi and 5GHi frequencies. Joe already has a complete wireless heat map of the main warehouse. Which of the following is the frst step that Joe should do before choosing which WAPns to use?

  A. Conduct a wireless survey of the back warehouse.
  B. Ask the vendor that provided the WAPns for the main warehouse for recommendatons.
  C. Ask the systems administrator which WAPns are preferred.
  D. Only order WAPns that support 5GHi channels.
  A. Conduct a wireless survey of the back warehouse.

• Question 944:

  Which of the following DNS records would a web browser access to determine the IP address of an Internet web page?

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

• Question 945:

  Which of the following wireless technologies only uses the 5GHi spectrum but reaches a theoretcal throughput of only 54Mbps?

  A. A
  B. B
  C. G
  D. N
  A. A

• Question 946:

  Lisaf an administratorf believes that the network has been atacked and MAC addresses have been captured allowing unauthoriied computers to access the network. Which of the following tools did the atackers MOST likely use to accomplish this?

  A. Intrusion preventon sofware
  B. Packet snifer
  C. Intrusion detecton sofware
  D. Port scanner
  B. Packet snifer

• Question 947:

  Which of the following is the Telco end of a T1 demarc?

  A. Smart jack
  B. Network tap
  C. Proxy server
  D. IDF
  A. Smart jack

• Question 948:

  A technician wants to connect a new wireless router to a main network switch. Which of the following cable types would MOST likely be used to establish this connecton?

  A. Telephone
  B. Parallel
  C. Serial
  D. CAT6
  D. CAT6

• Question 949:

  Which of the following uses a 128-bit addressing scheme?

  A. MAC
  B. DHCP
  C. IPv4
  D. IPv6
  D. IPv6

• Question 950:

  An organiiaton fnds that most of the outgoing trafc on the network is directed at several Internet sites viewed by multple computers simultaneously. Which of the following performance optmiiaton methods would BEST alleviate network trafc?

  A. Load balancing internal web servers
  B. Redundant network resources
  C. Implement fault tolerance on the WAN
  D. Implement caching engines
  D. Implement caching engines