Brainscape's Knowledge GenomeTM

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


See full index

Network+ Certification > Chapter 4 - Ethernet Basics > Flashcards

Chapter 4 - Ethernet Basics Flashcards

1
Q

What was the DIX standard

A

Enabled multiple computers to connect @ 10 Mbps

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

Define Ethernet

A

A standard for a family of network technologies of similar bus topology, frame type, and network access method.
i.e. 10Base2 or 10Base5

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

What is the purpose of breaking data into frames?

A

Prevents machines from dominating the bus cable and are more efficient when re transmitting lost data

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

How do you differentiate between frames and packets

A 
Frames = MAC addresses
Packets = IP protocol
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the 6 pieces of a basic frame

A

Preamble | Recipient MAC | Senders MAC | Data Type | Pad (if need) | FCS

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

What is the preamble of a frame

A

7 byte of alternating 1 and 0 with a 1 byte start frame. This is to let the NIC know a frame is incoming and to know where the frame starts.

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

What is promiscuous mode`

A

NIC will analyze all packets regardless of the MAC addresses.

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

What is the type field of a frame

A

Helps the receiving computer interpret the frame contents at a basic level.
Will not tell you if it is higher level data (email, etc.)

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

What is the pad

A

If a frame if below the minimum 64 bytes the pad will bring the data up to the minimum

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

what is CSMA/CD

A

Carrier Sense Multiple Access/Collision Detection.

Its purpose is to determine which computer should use a shared cable. Each cable analyzes the cable before sending.

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

What happens during a collision

A

Both transmissions are lost. A randomly generated waiting period is started before sending again.

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

What is an average number of collisions on a network

A

Max 10 percent

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

What is a collision domain

A

group of nodes that have the capability of sending frames simultaneously

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

How was a Thicknet network setup

A

With a thick cable that snaked through the building with a vampire tap used to pierce the cable to connect a workstation.

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

What ethernet standard was Thicknet

A

10Base5

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

What was 10Base2

A

Thinnet, Connect workstations using a T connector. limited to 185 meters

17
Q

What was a 10BaseT network

A

Two or more computers connected to a central hub

18
Q

What does 10BaseT mean

A 
10 = speed = 10 Mbps
Base = Baseband
T = Type of cable = Twisted Pair
19
Q

How many wires does 10BaseT use

A

pins 1 and 2 to send data

pins 3 and 6 to receive data.

20
Q

What is another name for a RJ-45 plug

A

8 position 8 contact modular plug

21
Q

What is the order of T568A

A

GW - G - OW - B - BW - O - BrW - B

22
Q

What is the order of T568B

A

OW - O - GW - B - BW - G - BrW - B

23
Q

Give a summary of 10BaseT

A

Speed: 10 Mbps
Signal: Baseband
Distance: 100 meters
Node Limit : 1024 max
Topology: Star-bus, physical star, logical bus
Cable Type: CAT3 or better, UTP cabling, RJ45 connectors

24
Q

Give a summary of 10BaseFL

A

Speed: 10 Mbps
Signal: Baseband
Distance: 2000 meters
Node Limit : 1024 max
Topology: Star-bus, physical star, logical bus
Cable Type: Multimode fiber with ST or SC connectors

25
Q

How do you connect two hubs

A

Via the Uplink port OR by using a crossover cable.

26
Q

Define MDIX

A

Media dependent interface cross over = uplink port

27
Q

Define MDI

A

Media Dependent Interface = regular port

28
Q

What is a rollover cable

A

RJ45 on one end and a RS-232 serial port on the other used to connect to cisco switch or router.

29
Q

What is the purpose of a Bridge

A

used to connect two ethernet networks AND filters/forwards traffic between segments using MAC addresses

30
Q

What is the source address table

A

A swtich copies the source MAC addresses of the frames and creates a table of all the MAC addresses connected.

31
Q

What is the benefit to Full duplex ethernet

A

No collisions can occur

32
Q

Differentiate broadcast domain and a collision domain

A

Hub based network = collision based domain

Switch based network = broadcast

33
Q

What is Spanning Tree Protocol

A

Enables switches to detect loops

Network+ Certification (18 decks)

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