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Network+ N10-007 > 5.0 Network Troubleshooting and Tools > Flashcards

5.0 Network Troubleshooting and Tools Flashcards

1
Q

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

A

ARP poisoning

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2
Q

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

A

names not resolving because DNS not working not configured correctly

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3
Q

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

A

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

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4
Q

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

A

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

the gateway is often referred to as the default gateway

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5
Q

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

A

choppy calls that intermittently drop

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6
Q

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

A

SSID broadcasting

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7
Q

what are three common issues that can impact VoIP quality?

A

latency, jitter, and packet loss

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8
Q

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

A

reflection

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9
Q

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

A

wrong SSID

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10
Q

what is a symptom of wireless interference?

A

intermittent connectivity

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11
Q

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

A

reduce signal strength

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12
Q

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

A

STP (shielded twisted pair)

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13
Q

what cable type provides the best protection against EMI?

A

fiber

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14
Q

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

A

EMI

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15
Q

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

A

duplex mismatch

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16
Q

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

A

Crosstalk

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17
Q

what is the delay in response between two systems called?

A

latency

18
Q

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

A

Ifconfig

19
Q

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

A

Ipconfig

20
Q

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

A

toner generator

21
Q

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

A

Netstat

22
Q

what software tool is used to show known routes?

A

Route (route print)

23
Q

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

A

Arp

24
Q

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

A

nslookup

25
Q

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

A

dig

26
Q

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

A

tracert (or traceroute)

27
Q

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

A

Ping (or tracert)

28
Q

what hardware tool is used to measure voltages?

A

multimeter

29
Q

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

A

OTDR

30
Q

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

A

protocol analyzer (or packet sniffer)

31
Q

what can a port scanner determine?

A

Open ports

these ports also indicate running services and protocols on a system

32
Q

what hardware tool is used to connect an RJ-45 connector to a twisted pair cable?

A

crimper

33
Q

what hardware tool can verify a twisted pair cable doesn’t have any breaks?

A

cable tester

34
Q

what is the name of the physical device when referring to a hop?

A

Router

35
Q

what should you do after testing a theory and determining a cause for a problem?

A

establish a plan of action to resolve the problem and identify potential effects

36
Q

what should you do after implementing a solution?

A

verify full system functionality

37
Q

what should you do after establishing a theory of probably cause?

A

test the theory to determine the cause

38
Q

what is the last step in the CompTIA troubleshooting model?

A

document findings, actions, and outcomes

39
Q

after identifying the problem, what is the next step?

A

establish a theory of probable cause

40
Q

what is the first step in the CompTIA troubleshooting model?

A

identify the problem (gather information, identify symptoms, question users, and determine if anything has changed)

Network+ N10-007 (5 decks)

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