5.0 Network Troubleshooting and Tools Flashcards Preview

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Flashcards in 5.0 Network Troubleshooting and Tools Deck (40)
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1

what kind of attack floods a layer 2 switch with traffic?

ARP poisoning

2

you can access resources using their IP address, but not using their name. why?

names not resolving because DNS not working not configured correctly

3

what is the result if a client is assigned an incorrect network mask?

the client will not be able to access any other resources in the network

4

what is the result if a client is assigned an incorrect gateway?

the client will not be able to access resources outside the network.

the gateway is often referred to as the default gateway

5

what is the result of packet loss on VoIP phone calls?

choppy calls that intermittently drop

6

what should be enabled to allow people to easily find a wireless network?

SSID broadcasting

7

what are three common issues that can impact VoIP quality?

latency, jitter, and packet loss

8

what is it called when wireless signals bounce off surfaces, such as metal or glass, causing poor connectivity?

reflection

9

what is it called when a user connects to the incorrect wireless network within an organization?

wrong SSID

10

what is a symptom of wireless interference?

intermittent connectivity

11

how can you reduce the distance of a wireless network's reception?

reduce signal strength

12

what type of twisted pair cable provides the best protection against EMI?

STP (shielded twisted pair)

13

what cable type provides the best protection against EMI?

fiber

14

what can occur if cable is run over a fluorescent light fixture?

EMI

15

what is the result of PC and a switch communication with different duplex modes?

duplex mismatch

16

what is an undesired effect of bundling UTP cables tightly together?

Crosstalk

17

what is the delay in response between two systems called?

latency

18

what command line tool would you use to view the TCP configuration on a linux system?

Ifconfig

19

what command line tool would you use to view the TCP configuration on a windows system?

Ipconfig

20

what hardware tool is used to locate the other end of a cable?

toner generator

21

what software tool is used to show open connections on a computer?

Netstat

22

what software tool is used to show known routes?

Route (route print)

23

what software tool is used to show MAC address to IP address mappings?

Arp

24

what software tool is used to check DNS from a Microsoft system?

nslookup

25

what software tool is used to check DNS from a linux system?

dig

26

what command provides information about the entire path between two systems?

tracert (or traceroute)

27

what software tool is used to check connectivity with a remote system?

Ping (or tracert)

28

what hardware tool is used to measure voltages?

multimeter

29

what hardware tool can identify the location of a break in a fiber cable?

OTDR

30

what tool is used to capture and analyze traffic sent over a network?

protocol analyzer (or packet sniffer)