Cisco 100-101 Set 2

Front 1

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.

Back 1

a. Only the devices that use cables are using Ethernet.

Front 2

2. Which of the following Ethernet standards defines Gigabit Ethernet over UTP cabling?
a. 10GBASE-T
b. 100BASE-T
c. 1000BASE-T
d. None of the other answers is correct.

Back 2

c. 1000BASE-T

Front 3

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 connect 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 meters long to cross over between buildings.
e. None of the other answers is correct.

Back 3

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

Front 4

4. Each answer lists two types of devices used in a 100BASE-T network. If these devices were
connected with UTP Ethernet cables, which pairs 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

Back 4

b. PC and switch
d. Router and hub
e. Wireless access point (Ethernet port) and switch

Front 5

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 is correct.

Back 5

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

Front 6

6. Which of the following is true about the Ethernet FCS field?
a. Ethernet uses FCS for error recovery.
b. It is 2 bytes long.
c. It resides in the Ethernet trailer, not the Ethernet header.
d. It is used for encryption.

Back 6

c. It resides in the Ethernet trailer, not the Ethernet header.

Front 7

7. Which of the following are true about the format of Ethernet addresses? (Choose three answers.)
a. Each manufacturer puts a unique OUI code into the first 2 bytes of the address.
b. Each manufacturer puts a unique OUI code into the first 3 bytes of the address.
c. Each manufacturer puts a unique OUI code into the first half of the address.
d. The part of the address that holds this manufacturer’s code is called the MAC.
e. The part of the address that holds this manufacturer’s code is called the OUI.
f. The part of the address that holds this manufacturer’s code has no specific name.

Back 7

b. Each manufacturer puts a unique OUI code into the first 3 bytes of the address.
c. Each manufacturer puts a unique OUI code into the first half of the address.
e. The part of the address that holds this manufacturer’s code is called the OUI.

Front 8

8. Which of the following terms describe Ethernet addresses that can be used to send one frame that is delivered to multiple devices on the LAN? (Choose two answers.)a. Burned-in address
b. Unicast address
c. Broadcast address
d. Multicast address

Back 8

c. Broadcast address
d. Multicast address

Front 9

Common name of 802.3

Back 9

Ethernet

Front 10

Common name of 802.3u

Back 10

Fast Ethernet

Front 11

Common name of 802.3z

Back 11

Gigabit Ethernet

Front 12

Common name of 802.3ab

Back 12

Gigabit Ethernet

Front 13

Common name of 802.3an

Back 13

10 Gig Ethernet

Front 14

Speed of 802.3

Back 14

10 Mbps

Front 15

Speed of 802.3u

Back 15

100 Mbps

Front 16

Speed of 802.3z

Back 16

1000 Mbps

Front 17

Speed of 802.3ab

Back 17

1000 Mbps

Front 18

Speed of 802.3an

Back 18

10 Gbps

Front 19

Informal IEEE Standard name of 802.3

Back 19

10BASE-T

Front 20

Informal IEEE Standard name of 802.3u

Back 20

100BASE-T

Front 21

Informal IEEE Standard name of 802.3z

Back 21

1000BASE-LX

Front 22

Informal IEEE Standard name of 802.3ab

Back 22

1000BASE-T

Front 23

Informal IEEE Standard name of 802.3an

Back 23

10GBASE-T

Front 24

Cable type and maximum length of name of 802.3

Back 24

Copper, 100 m

Front 25

Cable type and maximum length of name of 802.3u

Back 25

Copper, 100 m

Front 26

Cable type and maximum length of name of 802.3z

Back 26

Fiber, 5000 m

Front 27

Cable type and maximum length of name of 802.3ab

Back 27

Copper, 100 m

Front 28

Cable type and maximum length of name of 802.3an

Back 28

Copper, 100 m

Front 29

Which of these devices transmit on pins 1 and 2, and which transmit on pins 3,6?
PC NIC
Switch
HUB
Router
Wireless access points (Ethernet interface)

Back 29

The PC NIC, Router, and Wireless access point all transmit on pins 1,2
The hub and switch both transmit on pins 3,6

Front 30

What Pins are crossed in a 10/100 crossover cable?

Back 30

1,2 are crossed with 3,6

Front 31

What Pins are crossed in a Gigabit Ethernet crossover cable?

Back 31

1,2 are crossed with 3,6, and 4,5 are crossed with 7,8

Front 32

What types of port hardware can be used to change the types of ports used on a Cisco switch?

Back 32

Gigabit interface Converter (GBIC) and Small form-factor pluggables (SFP)

Front 33

List the fields from start to finish in an Ethernet packet

Back 33

Preamble, SFD, Destination, Source, Type, Data and Pad, FCS

Front 34

What is the size and purpose of the preamble field in an Ethernet packet?

Back 34

7 bytes - Provides Synchronization

Front 35

What is the size and purpose of the SFD field in an Ethernet packet?

Back 35

1 byte - Signifies that the next byte begins the Destination MAC Address

Front 36

What is the size and purpose of the Destination Mac Address field in an Ethernet packet?

Back 36

6 bytes - Identifies the identified Recipient of the Frame

Front 37

What is the size and purpose of the Source Mac Address field in an Ethernet packet?

Back 37

6 bytes - Identifies the sender of the frame

Front 38

What is the size and purpose of the Type field in an Ethernet packet?

Back 38

2 bytes - Defines the protocol listed inside the frames. Usually IPv4 or IPV6

Front 39

What is the size and purpose of the Data and Pad field in an Ethernet packet?

Back 39

46-1500 bytes - Holds data from a higher layer, typically a L3PDU (IPv4 or IPv6). Sender adds padding to meet 46-byte minimum requirement.

Front 40

What is the size and purpose of the FCS field in an Ethernet packet?

Back 40

4 bytes - Provides a method for the receiving NIC to determine whether the frame experienced transmission errors.

Front 41

What are the parts and sizes of a MAC address?

Back 41

48 bits - 24 bits for the OUI and 24 bits for the vender assigned part. Total is 12 hex digits, or 6 bytes
OUIVender Assigned
24 bits24 bits
6 hex digits6 hex digits
00 60 253a 07 bc

Front 42

Define Ethernet

Back 42

A series of LAN standards defined by the IEEE, originally invented by Xerox Corporation and developed jointly by Xerox, Intel, and Digital Equipment Corporation

Front 43

Define IEEE

Back 43

Institute of Electrical and Electronics Engineers. A professional organization that develops communications and network standards, among other activities.

Front 44

Define Wired LAN

Back 44

A LAN that uses cables for the links between nodes.

Front 45

Define Wireless LAN

Back 45

A Local-area network that physically transmits bits using radio waves. The name "wireless" compares these LANs to more traditional "wired" LANs, which are LANs that use cables (which often have copper wires inside).

Front 46

Define Ethernet frame

Back 46

A term referring to an Ethernet data link header and trailer, plus the encapsulated data.

Front 47

Define 10BASE-T

Back 47

The 10-Mbps baseband Ethernet specification using two pairs of twisted-pair cabling (Categories 3, 4, or 5). One pair transmits data and the other receives data. 10BASE-T, which is part of the IEEE 802.3 specification, has a distance limit of approximately 100 m (328 feet) per segment.

Front 48

Define 100BASE-T

Back 48

A name for the IEEE Fast Ethernet standard that uses two-pair copper cabling, a speed of 100 Mbps, and a maximum cable length of 100 meters.

Front 49

Define 1000BASE-T

Back 49

A name for the IEEE Gigabit Ethernet standard that uses Four-pair copper cabling, a speed of 1000 Mbps (1Gbps), and a maximum cable length of 100 meters.

Front 50

Define Fast Ethernet

Back 50

The common name for all the IEEE standards that send data at 100 Megabits per second.

Front 51

Define Gigabit Ethernet

Back 51

The common name for all the IEEE standards that send data at 1 gigabit per second.

Front 52

Define Ethernet Link

Back 52

A generic term for any physical link between two Ethernet nodes, no matter what type fo cabling is used.

Front 53

Define RJ-45

Back 53

A popular type of cabling connector used for Ethernet cabling. It is similar to the RJ-11 connector used for telephone wiring in homes in the United States. RJ-45 allows the conection of eight wires.

Front 54

Define Ethernet Port

Back 54

A generic term for any physical link between two Ethernet nodes, no matter what type fo cabling is used.

Front 55

Define network interface card (NIC)

Back 55

A computer card, sometimes an expansion card and sometimes integrated into the motherboard of the computer, that profices the electronics and other functions to connect to a computer network. Today, most NICs are specifically Ethernet NICs, and most have an RJ-45 port, the most common type of Ethernet port.

Front 56

Define straight-through cable

Back 56

In Ethernet, a cable that connects the wire on pin 1 on one end to pin 1 at the other end of a cable, and so on.

Front 57

Define crossover cable

Back 57

An Ethernet cable that swaps the pair used for transmission on one device to a pair used for receiving on the device on the aopposite end of the cable. In 10BASE-T and 100BASE-TX networks, this cable swaps the pair at pins 1,2 to pins 3,6 on the other end of the cable, and the pair at pins 3,6 to pins 1,2 as well.

Front 58

Define Ethernet address

Back 58

A 48-bit (6-byte) binary number, usually written as a 12-digit hexadecimal number, used to identify Ethernet nodes in an Ethernet network. Ethernet frame headers list a destination and source address field, used by the Ethernet devices to deliver Ethernet frames to the correct destination.

Front 59

Define MAC address

Back 59

A standardized data link layer address that is required for every device that connects to a LAN. Ethernet MAC addresses are 6 bytes long and are controlled by the IEEE. Also known as a hardware address, a MAC layer address, and a Physical address.

Front 60

Define unicast address

Back 60

Generally, any address in networking that represents a single device or interface

Front 61

Define broadcast address

Back 61

Generally, any address that represents all devices, and can be used to send one message to all devices. In Ethernet, the MAC address is all binary 1s, or FFFF.FFFF.FFFF in hex.

Front 62

Define Frame Check Sequence

Back 62

A field in many data link trailers used as part of the error-detection process.