Csci3700 Data Communications And Networking Midterm

Front 1

the seventh layer of the OSI model

Back 1

application

Front 2

a type of switching in which capacity for transmission is reserved end-to-end between the two subscribers

Back 2

circuit

Front 3

a network design in which client computers use a centrally administered server to share data, data storage space, and devices

Back 3

client/server

Front 4

characteristic of a type of protocol that does not use explicit openings and closings

Back 4

connectionless

Front 5

characteristic of a type of protocol that has a formal opening of the interactions, a formal closing, and maintenance of the conversation in between

Back 5

connection-oriented

Front 6

the use of data networks to carry voice, video, and other communications services in addition to data

Back 6

convergence

Front 7

the function of this layer is to divide the data it receives from the Network layer into frames that can then be transmitted by the Physical layer

Back 7

data link

Front 8

this protocol is used to provide each user PC with a temporary IP address each time it connects to a network

Back 8

DHCP (Dynamic Host Configuration Protocol)

Front 9

provides a destination numeric IP address for a hostname such as google.com

Back 9

DNS (Domain Name Service/System)

Front 10

a method of gauging the appropriate rate of data transmission based on how fast the recipient can accept data

Back 10

flow control

Front 11

a network located within a customer's premises

Back 11

LAN (Local Area Network)

Front 12

delay usually measured in milliseconds

Back 12

latency

Front 13

this layer of the OSI model governs the transmission of packets across networks

Back 13

network

Front 14

client PCs provide service to other client PCs in this type of application

Back 14

P2P (Peer-to-Peer)

Front 15

a type of switching where transmissions are broken down into short messages that can be multiplexed on trunk lines

Back 15

packet

Front 16

this layer in the OSI model governs the transmission of bits between adjacent devices connected by a transmission medium

Back 16

physical

Front 17

a number used in the headers of transport layer protocols that designates the application layer process

Back 17

port

Front 18

an OSI layer that is designed to handle data formatting difference, data compression and encryption

Back 18

presentation

Front 19

this device connects different networks into an internet

Back 19

router

Front 20

the property of a network that allows you to add nodes or increase its size easily

Back 20

scalable

Front 21

an OSI layer that initiates and maintains a connection between application programs on different computers

Back 21

session

Front 22

the physical layout of computers on a network

Back 22

topology

Front 23

protocols at this layer ensure that data are transferred from point A to point B reliably and without errors

Back 23

transport

Front 24

a network that links different sites together

Back 24

WAN (Wide Area Network)

Front 25

True or False. CAT3 UTP wire is a good choice for today's Gbps networks.

Back 25

False

Front 26

True or False. Networks made with switches primarily use a bus topology.

Back 26

False

Front 27

True or False. Attenuation in UTP limits the length of cord/cable to 100 meters

Back 27

True

Front 28

True or False. Single mode fiber has a larger diameter core than multimode fiber.

Back 28

False

Front 29

True or False. UTP is primarily used in trunk lines in LANs.

Back 29

False

Front 30

True or False. Simultaneous 2-way communication (ability to receive and transmit at the same time) is full-duplex.

Back 30

True

Front 31

True or False. In UTP wiring used in LANs, there are eight wires in the cord/cable.

Back 31

True

Front 32

True or False. TCP is a protocol at the application layer.

Back 32

False

Front 33

True or False. D2-CD-13-5B-E4-65 is an example of an IP address.

Back 33

False

Front 34

True or False. When a signal grows weaker as it travels, this is called attenuation.

Back 34

True

Front 35

True or False. The byte 00000110 means 4 on a digital network.

Back 35

False

Front 36

True or False. UDP is a protocol at the data link layer.

Back 36

False

Front 37

True or False. In optical fiber the very thin tube into which a transmitter injects light is called the cladding.

Back 37

False

Front 38

True or False. A collision occurs when two transmissions interfere with each other.

Back 38

True

Front 39

True or False. TTL is a number that indicates the max duration that a packet can remain on a network before it is discarded.

Back 39

True

Front 40

True or False. 127.0.0.1 is a loopback address.

Back 40

True

Front 41

The OSI model has how many layers?

Back 41

7

Front 42

The TCP/IP model has how many layers?

Back 42

4

Front 43

Which layer of the OSI model encapsulates packets into a frame?

Back 43

data link

Front 44

How long are IPv4 addresses?

Back 44

32 bits

Front 45

How long are IPv6 addresses?

Back 45

128 bits

Front 46

Traditional switches operate at what OSI model layer?

Back 46

data link

Front 47

What do switches create by grouping a number of ports into a broadcast domain?

Back 47

gateways

Front 48

What routing technique is used by a network administrator who programs a router to use specific paths between nodes?

Back 48

static

Front 49

In the TCP/IP protocol suite, what is the core protocol responsible for logical addressing at the internet layer?

Back 49

IP (Internet Protocol)

Front 50

In IPv4 addressing, a node with an IP address of 10.34.88.29 belongs to what Class network?

Back 50

A

Front 51

What is the default subnet mask for a Class B network?

Back 51

255.255.0.0

Front 52

If the standard port number of the HTTP service is 80, what is the socket address for HTTP for a host whose IPv4 address is 10.43.3.87?

Back 52

10.43.3.87:80

Front 53

What is the maximum throughput of 1000Base-SX?

Back 53

1Gbps

Front 54

What is the utility that can verify that TCP/IP is installed, bound to the NIC, configured correctly, and communicating with the network?

Back 54

PING (Packet Internet Groper)

Front 55

The 10GBase-T standard is considered a breakthrough for transmitting 10 Gbps over what medium?

Back 55

twisted pair

Front 56

What device enables a workstation to connect to a network and communicate with other computers?

Back 56

NIC (Network Interface Card)

Front 57

What is the IEEE standard for Ethernet networking devices and data handling?

Back 57

802.3

Front 58

What is the IEEE standard for wireless networking?

Back 58

802.11

Front 59

What is the lower sub-layer of the Data Link layer?

Back 59

MAC (Media Access Control)

Front 60

What is eight bits of information called?

Back 60

byte

Front 61

What is the method of delivering current to devices using Ethernet connection cables?

Back 61

PoE (Power over Ethernet)

Front 62

What is the oldest routing protocol that uses a distance-vector protocol for hop count as its routing metric?

Back 62

RIP (Routing Information Protocol)

Front 63

What is the physical topology in which every node on a network is connected through a central connectivity device?

Back 63

star

Front 64

What protocol obtains the Mac address from the IP address?

Back 64

ARP (Address Resolution Protocol)

Front 65

What protocol uses acknowledgements (ACKs)?

Back 65

TCP (Transmission Control Protocol)

Front 66

The more twists per foot in a pair of wires makes the pair more resistant to what?

Back 66

cross talk