answers for this qoustions

timer Asked: May 3rd, 2016

Question description

I need it in 6 hours

Section 1

  1. Why is it important to follow a troubleshooting methodology?
  1. When faced with a problem, why shouldn't you start trying fixes immediately?
  1. What is escalation and when should it be performed?
  1. After the problem is fixed, what else must you do to finish troubleshooting?
  1. What is the difference between ping and traceroute?
  1. When would you use nslookup or dig?

Section 2

  1. What types of problems might you encounter if the default gateway router were down?

Section 3

  1. What happens if a host in a star topology goes down? A token ring topology?
  1. What happens if there is a cable break on a bus topology? A dual ring topology?
  1. What is indicated by a flashing green link light?
  1. What is the difference between alien crosstalk and near-end crosstalk?
  1. Which cable types are immune to the effects of EMI?
  1. What is the single best method to reduce the effects of an impedance mismatch?
  1. How does an open circuit differ from a short?
  1. Which tool would you use to find the end of a specific cable within a wiring closet?

Section 4

  1. How can you tell if a rogue DHCP server is active on your network?
  1. What is the difference between the netstat and nbtstat commands?


Section 5

  1. What is the difference between nslookup and dig?

Section 6

  1. You have a network connected using switches with a single device connected to each switch port. Why should you be surprised to see collisions on this network?
  1. What is a duplex mismatch?
  1. What conditions lead to a broadcast storm?
  1. You move a device from one switch port to another, and now it cannot communicate with any other device on the network. The switch link lights are lit. What switch configuration should you check?

Section 7

  1. How is it possible for all hosts on a subnet to be configured with the wrong default gateway address?
  1. What are the symptoms of a routing loop? How can you identify a routing loop?

Section 8

  1. What type of objects might obstruct radio frequency wireless transmissions?
  1. Which types of wireless networks require line-of-sight connections?
  1. How do range and antenna placement affect wireless networks?

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