Ethernet Lans

Question 1

In the LAN for a small office some user devices connect to the LAN using a cable while others connect using wireless technology and no cable which of the following is true regarding the use of ethernet in this LAN?
A. Only the devices that use cables are using ethernet
B. Only the devices that use wireless are using ethernet
C. Both the devices using cables and those using wireless are using ethernet
D. None of the devices are using ethernet

Answer 1

Only the devices that use cables are using ethernet

Question 2

Which of the following ethernet standards define gigabit ethernet over UTP cabling

A. 10GBASE-T
B. 100BASE-T
C. 1000BASE-T
D. None of the above

Answer 2

1000BASE-T

Question 3

Which of the following is true about ethernet crossover cables for fast ethernet?

A. Pins 1 and 2 are reversed on the other end of the cable
B. Pins 1 and 2 on one end of the cable connected to pins 3 and 6 on the other end of the cable
C. Pins 1 and 2 on one end of the cable connect to pins 3 and 4 on the other end of the cable
D. The cable can be up to 1000 m long to crossover between buildings
E. None of the other answers are correct

Answer 3

Pins 1 and 2 on one end of the cable connect to pins 3 and 6 on the other end of the cable

Question 4

Each answer lists two types of devices used in a 100 base – T network. If these devices were connected with UTP ethernet cables, which pair of devices would require a straight through cable? (choose three answers)
A. PC and router
B. PC and switch
C. Hub and switch
D. Router and hub
E. Wireless access point (ethernet port) and switch

Answer 4

PC and switch
Router and hub
Wireless access point (ethernet port) and switch

Question 5

Which of the following is true about the CSMA/CD algorithm?
A. The algorithm never allows collisions to occur
B. Collisions can happen but the algorithm defines how the computers should notice a collision and how to recover
C. The algorithm works with only two devices on the same ethernet
D. None of the other answers are correct

Answer 5

Collisions can happen but the algorithm defines how the computers should notice a collision and how to recover

Question 6

Which of the following is true about the ethernet FCS field

A. Ethernet uses FCS forever recovery
B. It is 2 bytes Long
C. It resides in the ethernet trailer not the ethernet header
D. It is used for encryption

Answer 6

It resides in the ethernet trailer not the ethernet header

Question 7

Which of the following are true about the format of ethernet addresses?
A. Each manufacturer puts a unique oui code into the first two bites of the address
B. Each manufacturer puts a unique oui code into the first three bites of the address
C. Each manufacturer put a unique oh you are code into the first half of the address
D. The part of the address that holds the manufacturers code is called the Mac
E. The part of the address that hold this manufacturers code is called the oui
F. The part of the address that holds this manufacturers code has no specific name

Answer 7

Each manufacturer puts a unique OUR code into the first three bites of the address
Each manufacturer puts a unique oui code into the first half of the address
The part of the address that holds the manufacturers code is called the oui

Question 8

Which of the following terms describe ethernet addresses that can be used to send one frame that was delivered to multiple devices on the LAN?

A. Burned in an address
B. Unicast address
C. Broadcast address
D. Multicast address

Answer 8

Broadcast address

Multicast address