Network + Midterm Exam Study Stet

Front 1

What are the 7 layers of the OSI model?

Back 1

-Physical, -Data Link, -Network, -Transport, -Session, -Presentation, -Application

Front 2

Which layers of the OSI model defines the method of moving data between computers and includes cabling and hubs and involves electrical signals?

Back 2

Physical layer

Front 3

How many bits make up a MAC address?

Back 3

48

Front 4

How many Hex characters make a MAC address?

Back 4

12

Front 5

What is the broadcast address for a MAC address?

Back 5

FF-FF-FF-FF-FF-FF

Front 6

What layer of the OSI model do NICS, Frames, and MAC addresses operate at and also provides error checking?

Back 6

Data Link Layer 2

Front 7

What are the two sublayers of the data link layer?

Back 7

-LLC (Logical link control)
-MAC (Media access control)

Front 8

Which sublayer of Layer 2 data link, is responsible for communicating with layers 3 and 1 of the OSI model and creates the CRC on each frame?

Back 8

LLC

Front 9

Which sublayer of the layer 2 data link, is responsible for attaching the MAC address to the frames and sending the frames along the cable?

Back 9

MAC

Front 10

What is the minimum and maximum size of an ethernet frame?

Back 10

-64 bytes
-1518 bytes

Front 11

What devices operate at the data link layer 2?

Back 11

-Bridges
-Switches
-NIC's

Front 12

What protocols operate at the data link layer 2?

Back 12

-Ethernet
-Token Ring
-ATM

Front 13

What layer is responsible for creating packets and giving each device on a network a unique logical address called an IP address?

Back 13

Network layer 3

Front 14

What device operates at the network layer?

Back 14

Routers

Front 15

What protocol is used at the network layer 3?

Back 15

-IP (Internet Protocol)
-IPX (For Novell)
-ICMP

Front 16

What layer of the OSI model breaks up data, assembles and disassembles packets, assigns sequence numbers, and is responsible for transport end to end reliability through port numbers?

Back 16

Transport layer 4

Front 17

What protocol operates at the Transport layer 4?

Back 17

-TCP
-UDP
-SPX
-Netbeui

Front 18

This layer is responsible for breaking data up and assigning sequence numbers?

Back 18

Transport layer 4

Front 19

What are the 2 layers where error checking occurs?

Back 19

-Data Link layer 2
-Transport layer 4

Front 20

Which layer of the OSI model initiates sessions, accepts incoming sessions, and opens and closes existing sessions?

Back 20

Session layer 5

Front 21

What protocol operates at the session layer 5?

Back 21

NETBIOS

Front 22

What layer of the OSI model handles the conversion of data into formats that are readable by the system, such as compression, encryption, ASCII?

Back 22

Presentation layer 6

Front 23

Which layer of the OSI model operates within the code built into applications such as operating systems that make the programs network aware? and what is the name of the code that does this

Back 23

-Application layer 7
-API's (Application programming interfaces)

Front 24

What frequency does CAT3 operate at?

Back 24

16MHz

Front 25

What is the bandwidth of CAT3?

Back 25

16Mbps

Front 26

What frequency does CAT4 operate at?

Back 26

20MHz

Front 27

What is the bandwidth of CAT4?

Back 27

20Mbs

Front 28

What frequency does CAT5 operate at?

Back 28

100MHz

Front 29

What is the bandwidth of CAT5?

Back 29

100Mbs

Front 30

What frequency does CAT5e operate at?

Back 30

100MHz

Front 31

What is the bandwidth of CAT5e?

Back 31

1000Mbps

Front 32

What frequency does CAT6 operate?

Back 32

250MHz

Front 33

What is the bandwidth associated with CAT6?

Back 33

10000Mbps

Front 34

Shielded twisted pair cable (STP) is used to protect the cable from what?

Back 34

EMI (electro-magnetic interference)

Front 35

The twisting of wires within a CAT5e cable help to reduce what effect?

Back 35

Crosstalk

Front 36

What is the name of the connector used in a telephone jack?

Back 36

RJ11

Front 37

What is the name of the connector used in on a UTP cable for interfacing with devices such as NIC's and hubs?

Back 37

RJ45

Front 38

What type of cable is unaffected by EMI?

Back 38

Fiber-optic

Front 39

What is the most common size of fiber-optic cable?

Back 39

62.5/125um

Front 40

Fiber-optic cable that uses LEDs is known as what?

Back 40

Multimode fiber

Front 41

Fiber-optic cable that uses lasers is known as what?

Back 41

Single-mode fiber

Front 42

What is the wavelength used in fiber-optic technologies that use LEDs to transmit the signal?

Back 42

850 nm

Front 43

What wavelengths are used in fiber-optic technologies that use lasers to transmit their signals?

Back 43

-1310 nm
-1550 nm

Front 44

What are the 3 common types of connectors used on fiber-optic cable?

Back 44

-ST
-SC
-LC

Front 45

Of the 3 types of connectors used on fiber-optic cable, which one is used in duplex to accept 2 fiber cables?

Back 45

LC

Front 46

What networking industry standard (IEEE) oversees ethernet?

Back 46

IEEE 802.3

Front 47

What networking industry standard (IEEE) oversees wireless specification such as Wi-Fi?

Back 47

IEEE 802.11

Front 48

What is the maximum speed and distance for 10BaseT?

Back 48

-10 Mbps
-100 meters

Front 49

What is the minimum Category cable that can be used for 10BaseT?

Back 49

CAT3

Front 50

What is the maximum speed and distance for 10BaseFL?

Back 50

-10 Mbps
-2 Km

Front 51

What type of cable and connectors are used with 10BaseFL?

Back 51

-Multimode fiber
-ST or SC connectors

Front 52

What is "fast ethernet"?

Back 52

100BaseT

Front 53

What is the maximum speed and distance for 100BaseT?

Back 53

-100 Mbps
-100 Meters

Front 54

What is the minimum category of cable that can be used with 100BaseT?

Back 54

CAT5e

Front 55

What is the maximum speed and distance of 100BaseFX?

Back 55

-100 Mbps
-2 Km

Front 56

What type of cable is used for 100BaseFX and what type of connectors are used?

Back 56

-Multimode fiber
-ST or SC connectors

Front 57

What is the maximum speed and distance of 1000BaseSX?

Back 57

-1000 Mbps
-220-500 meters

Front 58

What type of cable and connectors are used with 1000BaseSX?

Back 58

-Multimode fiber
-LC connectors

Front 59

What is the maximum speed and distance of 1000BaseLX?

Back 59

-1000 Mbps
-5 Km

Front 60

What type of fiber and connectors are used with 1000BaseLX?

Back 60

-Single-mode fiber
-LC and SC connectors

Front 61

What is the maximum speed and distance for 1000BaseT?

Back 61

-1000 Mbps
-100 Meters

Front 62

What is the size of an IP address?

Back 62

32 bits

Front 63

What is a connection oriented protocol that uses port numbers?

Back 63

TCP

Front 64

What are 3 different protocols used for email?

Back 64

-SMTP
-POP3
-IMAP4

Front 65

What is the port number for SMTP?

Back 65

25

Front 66

What is the port number for POP3?

Back 66

110

Front 67

What is the port number for IMAP4?

Back 67

143

Front 68

What is the port number for HTTP?

Back 68

80

Front 69

What is the port number for HTTPS?

Back 69

443

Front 70

What protocol is used by the web?

Back 70

HTTP

Front 71

What protocol is used by the web for secure transmission of data?

Back 71

HTTPS

Front 72

In order for an internet application to be secure it must have what 3 components?

Back 72

-Authentication
-Encryption
-Nonrepudiation

Front 73

What protocol is used with the Ping command, that handles mundane issues such as disconnect messages?

Back 73

ICMP

Front 74

What port number is used by TFTP?

Back 74

69

Front 75

What address will a computer get if it tries to automatically get an IP address from a dhcp server but recieves no response?

Back 75

-APIPA address
-169.254

Front 76

What term refers to manually assigning a default IP address instead of allowing an APIPA address if a system is unable to get a dhcp address from a server?

Back 76

Alternate configuration

Front 77

What device is a multiport repeater where anything that is sent to the device is sent to every port on the device?

Back 77

Hub

Front 78

What device uses a shared Collision domain and a shared Broadcast domain.

Back 78

Hub

Front 79

What device operates on MAC addresses and are protocol independent?

Back 79

Switch

Front 80

Do switches have a shared collision domain or a independent collision domain?

Back 80

Independent

Front 81

Do switches have a shared broadcast domain or an independent broadcast domain?

Back 81

Shared

Front 82

What device has both an independent collision domain and an independent broadcast domain?

Back 82

Router

Front 83

What protocols are specific to routers that the device themselves use? Name 3

Back 83

-BGP
-OSPF
-LSA

Front 84

Which routing protocol is the "glue of the internet" that uses autonomous system numbers that is a distance vector protocol?

Back 84

BGP

Front 85

What routing protocol is a link state protocol that is used to exchange CHANGES in the routing table (not the entire routing table) and uses area id's.

Back 85

OSPF

Front 86

How often is OSPF updated?

Back 86

Whenever there is a change or every 30 minutes

Front 87

How often are RIP and distance vectors updated?

Back 87

every 30 seconds