E3

Question 1

ISP

Answer 1

internet service provider

Question 2

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

Answer 2

15

Question 3

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

Answer 3

5

Question 4

What is bandwidth?

Answer 4

bits transmitted per second

Question 5

What is throughput?

Answer 5

bits transmitted per second

Question 6

List the two measures of network speed.

Answer 6

bandwidth, latency

Question 7

List the three measures of network speed.

Answer 7

upload bandwidth, download bandwidth, latency

Question 8

What is latency?

Answer 8

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

Question 9

What does demarc stand for?

Answer 9

demarcation

Question 10

Why is the demarc important?

Answer 10

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

Question 11

What does modem stand for?

Answer 11

modulator demodulator

Question 12

What does a modem do?

Answer 12

convert between voltages and frequencies

Question 13

What does 8P8C stand for?

Answer 13

eight position eight contact

Question 14

In RJ45, what does RJ stand for?

Answer 14

registered jack

Question 15

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

Answer 15

auto-mdix

Question 16

What does UTP stand for?

Answer 16

unshielded twisted pair

Question 17

What does UTP do?

Answer 17

It is a physical cable for carrying bits between devices within a local area network.

Question 18

What does Cat 5 stand for?

Answer 18

category five

Question 19

Which is better quality, cat5 or cat6?

Answer 19

cat6

Question 20

What is troubleshooting?

Answer 20

When you have trouble, you try to figure out what the cause is and how to fix it.

Question 21

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

Answer 21

(a) when it is the only computer on your home network. (b) when you are troubleshooting the network.

Question 22

List the five services a typical home router provides.

Answer 22

firewall, gateway, dhcp, nat, wifi

Question 23

What does a firewall do?

Answer 23

It stops uninvited packets from reaching your computer.

Question 24

What does a gateway do?

Answer 24

It provides a path from your computer to the Internet.

Question 25

What does DHCP do?

Answer 25

It provides network configuration information to your computer when you connect to the network.

Question 26

What does NAT do?

Answer 26

replace one IP address with another

Question 27

What does Wi-Fi do?

Answer 27

provide a wireless connection between a device and an access point

Question 28

What does WAP stand for?

Answer 28

wireless access point

Question 29

What does WLAN stand for?

Answer 29

wireless local area network

Question 30

How fast is Wi-Fi in Mb/s?

Answer 30

600

Question 31

How many connections can a Wi-Fi access point handle?

Answer 31

20+

Question 32

How fast (in Mb/s) is a wired connection?

Answer 32

100 is common

Question 33

What is half duplex?

Answer 33

You can send and receive, but not both at the same time.

Question 34

What is full duplex?

Answer 34

You can send and receive, both at the same time.

Question 35

What benefits does a switch provide?

Answer 35

(a) more wired ports. (b) full-duplex communication.

Question 36

Name five components of a typical home Internet system.

Answer 36

SP, modem, router, WAP, computers.

Question 37

Name five categories of ISP.

Answer 37

cable, dsl (telephone), wireless, satellite, power line

Question 38

What does UPS stand for?

Answer 38

uninterruptible power supply

Question 39

What is a hotspot?

Answer 39

Also called a Wi-Fi hotspot, it is another name for Wireless Access Point.

Question 40

What does default mean?

Answer 40

Default is the choice or action that will happen if you do not specify something else.

Question 41

What defaults should I not keep?

Answer 41

passwords

Question 42

What two passwords does a home router normally have?

Answer 42

administrative and Wi-Fi

Question 43

What is the maximum length (in meters) for Cat5 cabling?

Answer 43

100

Question 44

With T568 wiring, are the striped wires odd or even?

Answer 44

odd

Question 45

With T568 wiring, are the solid-color wires odd or even?

Answer 45

even

Question 46

With T568A wiring, what color goes in slots 1 and 2?

Answer 46

green

Question 47

With T568B wiring, what color goes in slots 1 and 2?

Answer 47

orange

Question 48

With T568A wiring, what color goes in slots 3 and 6?

Answer 48

orange

Question 49

With T568B wiring, what color goes in slots 3 and 6?

Answer 49

green

Question 50

With T568A wiring, what color goes in slots 4 and 5?

Answer 50

blue

Question 51

With T568B wiring, what color goes in slots 4 and 5?

Answer 51

blue

Question 52

With T568A wiring, what color goes in slots 7 and 8?

Answer 52

brown

Question 53

With T568B wiring, what color goes in slots 7 and 8?

Answer 53

brown

Question 54

What is a Global Broadcast Ping?

Answer 54

It is a ping to every device that you can reach.

Question 55

What is the command to do a Global Broadcast Ping?

Answer 55

ping 255.255.255.255

Question 56

With Global Broadcast Ping, who is the first responder?

Answer 56

The device sending the ping is normally the first to respond.

Question 57

With Global Broadcast Ping, who is the second responder?

Answer 57

The router (gateway) connecting you to the rest of the Internet is normally the second device to respond.