Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Network+ Video Course > Networking Issues > Flashcards

Networking Issues Flashcards

1
Q

(Network) As far as the way a network is designed, there are two main types:

A

wired and wireless networks.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

(Network) wired and wireless networks can be ________.

A

combined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

(Network) Most businesses today use a combination of _____ and ________ networks, so it’s important to understand, as a network administrator, how to diagnose problems related to wired and wireless issues.

A

wired, wireless

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

(Media) In a wired network, this involves copper cables, and over time, cables can be worn out or damaged, and that’s when ______ can happen.

A

shorts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

(Fiber Optic Issues) Similar issues can happen in fiber optic networks as well, such as signal loss or attenuation.

A

signal, loss, attenuation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

(Fiber Optic Issues) Other factors include using the wrong type of _____, wavelength mismatches, fiber type mismatches, dirty connectors, connector mismatches, bending the cable too much, and exceeding the cable ______ limitations.

A

cable, length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

(DHCP) Problems can also happen in DHCP.
- For example, what would happen if a DHCP server was removed? If this were to happen, then certain computers that have an expired __ _______ would not be able to renew their IP lease because there is no longer a ____ server present.
- so these computers won’t be able to access the network. This would also affect when new computers are added.
They will not be able to access a network without an __ _______.

A

IP, address, DHCP, IP, address

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

(DHCP) It’s important to remember that this is only the case if the computers were configured to obtain an IP address _____________. So this would have no effect if they were configured for a _____ __.

A

automatically, static, IP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

(DHCP) In another scenario, what would happen if another DHCP server was added to the network? So it’s important to remember that if you’re going to add another DHCP server to the network, it must be __________ properly.
-For example, you’re going to have to make sure that the two DHCP servers do not give out the same IP address to a computer because all IP addresses must be ______. And if the second DHCP server assigns an IP address that is already in use, an IP address conflict will happen.
So to avoid this, you must configure the _______ ____ correctly.

A

configured, unique, address, pool

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

(DNS) The main impact that this service would have on a network if DNS was not working properly is basically accessing web pages using ______ _____.

A

domain, names

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

(DNS) For example, yahoo.com will be resolved to the IP address 66.94.234.13 by a DNS server. But if a DNS server was not present, you would not be able to access the Yahoo website using the domain name yahoo.com. You would only be able to access the Yahoo website by typing in the __ _______ instead.

A

IP, address

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

(Link LEDs) Link LEDs are very simple indicators that are used to tell us basic information about a _______ _____.

A

network, device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

(Link LEDs) For example, on a network interface card, if you were to plug in a network cable, you will notice that the green LED turns __.

A

on

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

(Link LEDs) The green LED is called the link light, and this indicates that there is a __________ _______ __________.

A

successful, network, connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

(Link LEDs) if the LED does not light up after a cable is plugged in, then this indicates a problem such as a ___ _____ or something simple such as maybe the computer is turned ___.

A

bad, cable, off

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

(Link LEDs) The blinking yellow LED, on the other hand, indicates that there is _______ ________ happening.

A

network, activity

17
Q

(Link LEDs) Whether the blink rate is medium or slow, this indicates ______ _________.

A

normal, operation

18
Q

(Physical Connectivity) Another thing, and probably the most obvious to check, is ________ ____________. Is your computer connected to the network?

A

physical, connectivity

19
Q

(Physical Connectivity) So if you don’t see the link LED and you know that the cable is good, then you might want to check the ______.

A

switch

20
Q

(Physical Connectivity) Is the switch even turned on? Are there any LEDs on the switch? And you might also want to check if the network cable is loose on either the ___ or the ______ connection.

A

NIC, switch

21
Q

(Wrong Encryption) For example, if you’re using a later wireless encryption method such as WPA2 on your wireless router, but if you’re using an older laptop that can only use WEP or WPA, well then that laptop wouldn’t be able to join the ________ _______ because you’re using a later encryption method that your laptop cannot recognize.

A

wireless, network

22
Q

(Wrong Encryption) Using the wrong type of encryption could also prevent wireless devices from joining your _______.

A

network

23
Q

(Interference) So you may have to test out certain areas in your home or office to make sure that all your devices can use your ________ _______.

A

wireless, network

24
Q

(Interference) Depending upon the structure of the building, like concrete walls, window film, and metal studs, can all affect ________ _______.
So in this case, you may have to consider where you are placing your wireless router to avoid these kinds of structural interference issues.

A

wireless, signals

25
Q

(Interference) Also, the structure of a building is another factor that can affect a ________ ______.

A

wireless, signal

26
Q

(Interference) I had a situation one time where one of my customers was complaining that every time her phone rings, she would lose internet connection on her laptop. And this is because her cordless phone and her wireless router were using the same wireless channel. So to quickly resolve this, I just logged into the router’s configuration page and changed the channel on her wireless signal, which quickly solved the problem.

A

example

27
Q

(Interference) A cordless phone is another device that can interfere with a ________ _______ because a lot of cordless phones operate at the same frequency as wireless routers do, which is at 2.4 gigahertz.

A

wireless, network

28
Q

(Interference) Microwave ovens can cause ____________, and certain wireless devices can interfere with a wireless ______, such as cell phones and Bluetooth devices like a wireless keyboard and mouse.
The waves that are produced by these devices can alter the signal of a wireless _______.

A

interference, signal, network

29
Q

(Wireless Factors) Another type of antenna is the directional antenna, and this type directs the signal in ___ _________, and that direction is wherever you point the _______ to.

A

one, direction, antenna

30
Q

(Wireless Factors) One type of antenna is the omnidirectional antenna, and this happens to be the most common type as well. This type of antenna transmits the signal in ___ __________, so every wireless device in all directions can pick up the signal as long as they’re in range.

A

all, directions

31
Q

(Wireless Factors) Since the wireless devices operate using radio waves, the antenna is a big factor that can determine the _____ and _____ of a signal.

A

range, speed

32
Q

(Wireless Factors) Antennas are another factor that affects a ________ ______.

A

wireless, service

33
Q

(Media) For example, if you are using a crossover cable when you should be using a straight cable. (in a point A to B connection)

A

example

34
Q

(Media) If the cable exceeds the maximum recommended length, then this could also cause a problem. Or if you are using the wrong type of cable, this can also affect your network.

A

length, cable

35
Q

(Environment) For example, if you are using copper cabling, it’s important to recognize the environment around the cable because certain electronic equipment, such as fans, fluorescent lights, or air conditioners, can interfere with the copper media, thereby altering or reducing the strength of the signal, which is known as ___________.

A

attenuation

36
Q

(Environment) It’s also important to remember to use the right type of cable depending on what kind of _______ you’re using.

A

network

37
Q

(Environment) It’s also important to remember to use the right type of cable depending on what kind of _______ you’re using.

A

network

Network+ Video Course (25 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions