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IT280 Reviewer > Home Networking E3 > Flashcards

Home Networking E3 Flashcards

(57 cards)

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1
Q

What does ISP stand for?

A

internet service provider

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2
Q

What is a typical broadband download speed in megabits per second (2013, Worldwide)?

A

15

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3
Q

What is a typical broadband upload speed in megabits per second (2013, Worldwide)?

A

5

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4
Q

What is bandwidth?

A

bits transmitted per second

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5
Q

What is throughput?

A

bits transmitted per second

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6
Q

List the two measures of network speed.

A

bandwidth, latency

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7
Q

List the three measures of network speed.

A

upload bandwidth, download bandwidth, latency

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8
Q

What is latency?

A

Latency is the delay between a packet being sent and being received

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9
Q

What does demarc stand for?

A

demarcation

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10
Q

Why is the demarc important?

A

The ISP is responsible for everything outside the demarc. You are responsible for everything inside the demarc

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11
Q

What does modem stand for?

A

modular demulator

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12
Q

What does a modem do?

A

convert between voltages and frequencies

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13
Q

What does 8P8C stand for?

A

eight position eight contact

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14
Q

In RJ45, what does RJ stand for?

A

registered jack

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15
Q

what is the technical term for a connection that can use either straight-through or crossover cables?

A

auto-mdix

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16
Q

What does UTP stand for?

A

unshielded twisted pair

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17
Q

What does UTP do?

A

It is a physical cable for carrying bits between devices within a LAN

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18
Q

What does Cat 5 stand for?

A

category five

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19
Q

Which is better quality, cat5 or cat6?

A

cat6

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20
Q

What is troubleshooting?

A

When you have trouble, you are trying to figure it out and find how to fix it.

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21
Q

What two times should you connect your computer directly to a modem?

A

When it is only the computer in the network (b) when troubleshooting the network

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22
Q

List the five services a typical home router provides.

A

firewall, gateway, dhcp, nat, wifi

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23
Q

What does a firewall do?

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A

stops uninvited packets from your computer

24
Q

What does a gateway do?

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A

provides a path from the computer to the internet

25
What does DHCP do?
provides network configuration information to the computer when you connect to the internet.
26
What does NAT do?
replace one IP address to another
27
What does Wi-Fi do?
provides a wirless connection between a device and an access point
28
What does WAP stand for?
wireless access point
29
What does WLAN stand for?
wireless local area network
30
How fast is Wi-Fi in Mb/s?
600
31
How many connections can a Wi-Fi access point handle?
20+
32
How fast (in Mb/s) is a wired connection?
100 is common
33
What is half duplex?
can send and receive but not at the same time
34
What is full duplex?
you can send and receive both at the same time
35
What benefits does a switch provide?
(a) more wired ports. (b) full-duplex communication
36
Name five components of a typical home Internet system.
ISP ,modem, router, WAP, computers.
37
Name five categories of ISP.
cable, dsl (telephone), wireless, satellite, power line
38
What does UPS stand for?
uninterruptible power supply
39
What is a hotspot?
Another name for wireless access point
40
What does default mean?
Default is a choice or action that will happen if you do not specify something else.
41
What defaults should I not keep?
passwords
42
What two passwords does a home router normally have?
administrative and Wi-Fi
43
What is the maximum length (in meters) for Cat5 cabling?
100
44
With T568 wiring, are the striped wires odd or even?
odd
45
With T568 wiring, are the solid-color wires odd or even?
even
46
With T568A wiring, what color goes in slots 1 and 2?
green
47
With T568B wiring, what color goes in slots 1 and 2?
orange
48
With T568A wiring, what color goes in slots 3 and 6?
orange
49
With T568B wiring, what color goes in slots 3 and 6?
green
50
With T568A wiring, what color goes in slots 4 and 5?
blue
51
With T568B wiring, what color goes in slots 4 and 5?
blue
52
With T568A wiring, what color goes in slots 7 and 8?
brown
53
ith T568B wiring, what color goes in slots 7 and 8?
brown
54
What is a Global Broadcast Ping?
it is a ping to every device that you can reach
55
What is the command to do a Global Broadcast Ping?
ping 255.255.255.255
56
With Global Broadcast Ping, who is the first responder?
The device sending the ping is normally the first to respond
57
With Global Broadcast Ping, who is the second responder?
The router (gateway) connecting you to the rest of internet is normally the second device to respond

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