Network +

Question 1

Troubleshooting Model

Answer 1

1; ID the problem
2; Establish a theory of the cause
3; Test the theory
4; Establish a plan
5; Implement the solution
6; Verify fully system functionality
7; Document

Question 2

ipconfig

Answer 2

most commonly used troubleshooting utility

-run from the command line

Question 3

APIPA address =

Answer 3

computer can not get an address from DHCP server

-169.254.x.x

Question 4

ipconfig /release

Answer 4

removes addressing but does not get ride of static addresses

Question 5

ipconfig /renew

Answer 5

directs the computer to obtain a new address from the DHCP server

Question 6

ping utility

Answer 6

makes sure the destination address is reachable

Question 7

ping utility sequence

Answer 7

Should work from inside out, i.e.
loopback, default gateway,DNS Server
file server

Question 8

tracert

Answer 8

traces the actual path that packets are taking

Question 9

arp -a

ARP - address resolution protocol
ARP cache arp -a

Answer 9

resolves IP to MAC

NOTE: static addressing is rarely used

Question 10

netstat

Answer 10

lists interface statistics and ports open (etc.)

Question 11

nslookup

Answer 11

runs queries on DNS server to make sure it’s working properly

Question 12

SNIPS -Monitoring levels

System and Network Integrated Polling Software -UNIX devices

Answer 12

• info
• Warning
• Error
• Critical