Comptia Network+ Mike Meyers

Front 1

Where does a hub send data?

Back 1

To all the systems connected to the hub

Front 2

What uniquely identifies every NIC?

Back 2

Media Access Control Address

Front 3

What Windows utility do you use to find the MAC address for a system?

Back 3

IPCONFIG

Front 4

A MAC address is know as a(n) _________ address.

Back 4

Physical

Front 5

A NIC sends data in discrete chunks called ____________________.

Back 5

Frames

Front 6

Which MAC address begins a frame?

Back 6

Receiving system

Front 7

A frame ends with a special bit called the cyclic redundancy check (CRC). What does the CRC do?

Back 7

Verifies that the data arrived correctly

Front 8

Which of the following is an example of a MAC address?
A) 0 – 255
B) 00-50-56-A3-04-OC
C) SBY3M7
D) 192.168.4.13

Back 8

B) 00-50-56-A3-04-OC

Front 9

Which layer of the OSI seven-layer model controls the assembly and disassembly of data?

Back 9

Transport Layer

Front 10

Which layer of the OSI seven-layer model keeps track of a system’s connections to send the right response to the right computer?

Back 10

Session Layer

Front 11

The term “unshielded twisted pair” describes what network component?

Back 11

Cable

Front 12

Which of the following is most likely to be a MAC address assigned to a NIC?
A) 24.17.232.7B
B) 23.4F.17.8A.4C.10
C) 192.168.1.121
D) 713.555.1212

Back 12

B) 23.4F.17.8A.4C.10

Front 13

Which of the following OSI layers converts the ones and zeroes to electrical signals?
A) Network layer
B) Transport layer
C) Data Link layer
D) Physical layer

Back 13

D) Physical layer

Front 14

What handles the initial connection between two computers to verify that the receiving system can handle the network request of the sending system?

Back 14

Session software

Front 15

Which of the following best describes an IP address?
A) A unique dotted decimal notation burned into every NIC
B) A 48-bit identifying number assigned to a NIC by software
C) A unique 48-bit identifying number burned into every NIC
D) A dotted decimal notation assigned to a NIC by software

Back 15

D) A dotted decimal notation assigned to a NIC by software

Front 16

Which components work at Layer 1 of the OSI seven-layer model? (Select two.)
A) Hub
B) Session software
C) Cables
D) Network protocol

Back 16

A) Hub
C) Cables

Front 17

Describe the contents of a typical network frame.

Back 17

Recipient’s MAC address, sender’s MAC address, data, CRC

Front 18

The IEEE assigns what to manufacturers?

Back 18

The first 24 bits

Front 19

What enables you to connect a PC via modem to an IP network?

Back 19

Router

Front 20

If a sending system does not know the MAC address of the intended recipient system, it sends a broadcast frame with what MAC address?
A) FF-FF-FF-FF-FF-FF
B) 11-11-11-11-11-11
C) 192.168.0.0
D) 00-00-00-00-00-00

Back 20

A) FF-FF-FF-FF-FF-FF

Front 21

Which topologie requires termination?

Back 21

Bus

Front 22

Star-bus is an example of a __________________ topology.

Back 22

Hybrid

Front 23

What is the most fault tolerant topology?

Back 23

Star

Front 24

What term is used to describe the interconnectivity of network components?

Back 24

Topology

Front 25

Coaxial cables all have what type of rating?

Back 25

Ohm

Front 26

Which of the following is a type of coaxial cable?

Back 26

RG-59

Front 27

Which network topology connects nodes with a central ring of cable?

Back 27

Ring

Front 28

Which network topology is most likely seen only in wireless networks?

Back 28

Mesh

Front 29

Which of the following is a duplex fiber-optic connection?

Back 29

LC

Front 30

What is the most common category of UTP used in new cabling installations?

Back 30

CAT 5e

Front 31

The term “unshielded twisted pair” describes what network component?

Back 31

Cable

Front 32

Which of the following is most likely to be a MAC address assigned to a NIC?
A) 24.17.232.7B
B) 23.4F.17.8A.4C.10
C) 192.168.1.121
D) 713.555.1212

Back 32

B) 23.4F.17.8A.4C.10

Front 33

Which OSI layers converts the ones and zeroes to electrical signals?

Back 33

Physical layer

Front 34

What handles the initial connection between two computers to verify that the receiving system can handle the network request of the sending system?

Back 34

Session software

Front 35

What best describes an IP address?

Back 35

A dotted decimal notation assigned to a NIC by software

Front 36

Which components work at Layer 1 of the OSI seven-layer model? (Select two.)
A) Hub
B) Session software
C) Cables
D) Network protocol

Back 36

A) Hub
C) Cables

Front 37

What best describes the contents of a typical network frame.

Back 37

Recipient’s MAC address, sender’s MAC address, data, CRC

Front 38

The IEEE assigns what to manufacturers?

Back 38

The first 24 bits to manufacturers

Front 39

What enables you to connect a PC via modem to an IP network?

Back 39

Router

Front 40

If a sending system does not know the MAC address of the intended recipient system, it sends a broadcast frame with what MAC address?
A) FF-FF-FF-FF-FF-FF
B) 11-11-11-11-11-11
C) 192.168.0.0
D) 00-00-00-00-00-00

Back 40

A) FF-FF-FF-FF-FF-FF

Front 41

What are the three main components of fiber-optic cabling?

Back 41

Fiber
Insulating jacket
Cladding

Front 42

Which of the following is not a limitation on 10BaseFL cable?
A) Maximum speed of 10 Mbps
B) Maximum distance between hub and node of 2000 meters
C) Minimum CAT 3 or better UTP with RJ-45 connectors
D) Maximum of 1024 nodes per hub

Back 42

C) Minimum CAT 3 or better UTP with RJ-45 connectors

Front 43

How are the connectors wired on a crossover cable?

Back 43

One end is TIA/EIA 568A; the other end is TIA/EIA 568B.

Front 44

Where are you most likely to encounter a mesh network?

Back 44

On wireless networks

Front 45

Which of the following are standard network topologies? (Select three.)
A) Ring
B) Dual-ring
C) Star
D) Bus

Back 45

A) Ring
C) Star
D) Bus

Front 46

Which of the following is not a limitation on 10BaseT cable?
A) Maximum of 1024 nodes per hub
B) Minimum CAT 3 or better UTP with RJ-45 connectors
C) Maximum distance between hub and node of 100 feet
D) Maximum speed of 10 Mbps

Back 46

C) Maximum distance between hub and node of 100 feet

Front 47

For what purpose is a crimping tool used?

Back 47

To attach an RJ-45 connector to a UTP cable.

Front 48

What organization is responsible for establishing and promoting networking standards?

Back 48

Institute of Electrical and Electronics Engineers (IEEE)

Front 49

What happens when two computers transmit through a hub simultaneously?

Back 49

A collision occurs.

Front 50

What are three aspects of network cabling the IEEE committee establishes?

Back 50

Speed
Cable types
Frame size

Front 51

Ethernet hubs take an incoming packet and ____________ it out to the other connected ports.

Back 51

Repeat

Front 52

What begins an Ethernet frame?

Back 52

Preamble

Front 53

What type of bus does 10BaseT use?

Back 53

Star Bus

Front 54

What is the maximum distance that can separate a 10BaseT node from its hub?

Back 54

100 meters

Front 55

When used for Ethernet, unshielded twisted pair uses what type of connector?

Back 55

RJ-45

Front 56

What is the maximum number of nodes that can be connected to a 10BaseT hub?

Back 56

1024

Front 57

Which of the following is not true of crossover cables?

A) They are a type of twisted-pair cabling
B) They reverse the sending and receiving wire pairs
C) They are used to connect hubs
D) Both ends of a crossover cable are wired according to the TIA/EIA 568B standard

Back 57

D) Both ends of a crossover cable are wired according to the TIA/EIA 568B standard

Front 58

Which of the following connectors are used by 10BaseFL cable?

A) SC
B) RJ-45
C) RJ-11
D) ST

Back 58

A) SC
D) ST

Front 59

Which networking device can use the Spanning Tree Protocol (STP)?

Back 59

Switches

Front 60

What device filters and forwards traffic based on MAC addresses?

Back 60

Bridge

Front 61

When a network device can only send data or receive data, but not both at the same time, it is operating in what mode?

Back 61

Half-duplex

Front 62

All of the following are fiber connector types EXCEPT:
A) MT-RJ
B) LS
C) ST
D) LC

Back 62

B) LS

Front 63

What is generated by every piece of UTP cable in existence?

Back 63

Crosstalk

Front 64

Which standard defines Fast Ethernet using fiber cabling?

Back 64

100BaseFX

Front 65

All of the following are 100BaseT cable types EXCEPT:
A) CAT 3
B) 10BaseFL
C) CAT 5
D) CAT 5e

Back 65

B) 10BaseFL

Front 66

Which NIC type offers the most versatility?

Back 66

10/100/1000

Front 67

What important backbone technology is also known as Gigabit Ethernet?

Back 67

1000BaseT

Front 68

Which statement about structured cable is correct?
A) A demarc is used for fiber cabling while a network interface unit is used for UTP.
B) The term “demarc” refers to a piece of equipment provided by an ISP while the phrase “network interface unit” refers to a piece of equipment provided by the customer.
C) The term “demarc” refers to a physical location while the phrase “network interface unit” refers to a piece of equipment provided by an ISP.
D) The terms “demarc” and “network interface unit” refer to pieces of equipment provided by an ISP.

Back 68

B) The term “demarc” refers to a piece of equipment provided by an ISP while the phrase “network interface unit” refers to a piece of equipment provided by the customer.

Front 69

Why would network techs use stranded core cabling from a patch panel’s ports to a switch?

Back 69

Flexibility

Front 70

Jenny’s office building recently had sections renovated, and now some users are complaining that they can’t see the network. She suspects that the workers might have inadvertently broken wires when they did ceiling work. George suggests she use a toner to figure out which wires go to the complaining users. Erin disagrees, saying that Jenny should use a Fox and Hound. Who’s right?
A) Only George is right.
B) Neither George nor Erin is right.
C) Only Erin is right.
D) Both George and Erin are right.

Back 70

D) Both George and Erin are right.

Front 71

With 100BaseT, what is the maximum distance between the hub (or switch) and the node?

Back 71

100 meters

Front 72

What type of cable and connector does 100BaseFX use?

Back 72

Multimode fiber with ST or SC connectors

Front 73

How many pairs of wires do 10BaseT and 100BaseT use?

Back 73

2

Front 74

What standard does IEEE 802.3ab describe?

Back 74

1000BaseT

Front 75

What is the big physical difference between 1000BaseSX and 100 BaseFX?

Back 75

1000BaseSX is single mode where 100BaseFX is multimode

Front 76

What is the maximum distance for 1000BaseLX without repeaters?

Back 76

5000 meters

Front 77

What is a big advantage to using fiber-optic cable?

Back 77

Fiber is not affected by the EMI interference

Front 78

How many wire pairs does 1000BaseT use?

Back 78

4

Front 79

What is the standard connector for the 10-Gbe fiber standard?

Back 79

There's no standard

Front 80

What is the maximum cable length of 10GBaseT on CAT 6?

Back 80

55 meters

Front 81

What cable should never be used in a structured cabling installation?

Back 81

Coax

Front 82

What enables you to use multiple NICs together in a computer to achieve a much faster network speed?

Back 82

Bonding

Front 83

The CAT 5e rating defines how many pairs of wires in the cable?

Back 83

4

Front 84

What organizes and protects the horizontal cabling in the telecommunications room.

Back 84

Patch Panel

Front 85

Which of the following would never be seen in an equipment rack?
A) Patch Panel
B) UPS
C) PC
D) All of the above may be seen in an equipment rack.

Back 85

D) All of the above may be seen in an equipment rack.

Front 86

What are patch cables used for?

Back 86

To connect the patch panel to the hub
To connect PCs to outlet boxes

Front 87

Which of the following network technologies use UTP cabling in a star topology? (Select two)
A) 10Base2
B) Fiber-optics
C) 10BaseT
D) 100BaseT

Back 87

C) 10BaseT
D) 100BaseT

Front 88

Jane needs to increase network throughput on a 10BaseT network that consists of 1 hub and 30 users. Which of the following hardware solutions would achieve this most inexpensively?
A) Add a fiber backbone
B) Upgrade the network to 100BaseT
C) Replace the hub with a switch
D) Add a router

Back 88

C) Replace the hub with a switch

Front 89

What two devices together enable you to pick a single cable out of a stack of cables?

Back 89

Tone generator
Tone probe

Front 90

Rack-mounted equipment has height measured in what units?

Back 90

U