CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 551:

  A computer's DNS has bad cach records.which tools can be used to clear the DNS record.

  A. netstat
  B. ipconfig
  C. nslookup
  D. tracert
  B. ipconfig

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  ipconfig/flushdns will flush/clear the old DNS record, which includes good and bad cached records

• Question 552:

  The unit responsible for the successful shaping and transmission of a digital signal is called:

  A. demarc.
  B. T1 hub.
  C. smart jack.
  D. CSU/DSU.
  D. CSU/DSU.

• Question 553:

  A network manager is interested in a device that watches for threats on a network but does not act on its own, and also does not put a strain on client systems. Which of the following would BEST meet these requirements?

  A. HIDS
  B. NIDS
  C. NIPS
  D. HIPS
  B. NIDS

• Question 554:

  An administrator would like to decrease the load time of common websites that employees review daily. Which of the following can be installed?

  A. Load balancing
  B. VPN concentrator
  C. Caching server
  D. Fault tolerance
  C. Caching server

• Question 555:

  An advertised route learned from one protocol over a different protocol is called:

  A. Co-location
  B. Reallocation
  C. Redundancy
  D. Redistribution
  D. Redistribution

• Question 556:

  A small business owner is in the process of setting up a SOHO office. The office has only one connection to the Internet via a broadband cable connection. The office has four subnets that must be able to connect to the Internet. Which of the following devices would enable the owner to meet these requirements?

  A. A firewall
  B. A router
  C. A hub
  D. A Layer 2 switch
  B. A router

• Question 557:

  Frequency, channel bonding, and MIMO configuration are all characteristics of which of the following networking technologies?

  A. Wi-Fi
  B. SONET
  C. T1/E1 Internet
  D. Satellite Internet
  A. Wi-Fi

• Question 558:

  Which of the following is the BEST network configuration to use if the technician wants to send all outgoing traffic to the external router?

  A. ACLs
  B. Static routing
  C. Trunking
  D. SNMP strings
  B. Static routing

• Question 559:

  An administrator has added four switches to a campus network. The switch in wiring closet A is only connected to the switch in wiring closet C. The switch in wiring closet B is connected to the switch in wiring closet C as well as wiring closet

  A. Ring
  B. Star
  C. Bus
  D. Mesh
  C. Bus

• Question 560:

  A company has a server with redundant power supplies. Which of the following is this an example of?

  A. Traffic shaping
  B. Caching engines
  C. Fault tolerance
  D. Load balancing
  C. Fault tolerance