Internetworking Basics

Question

Network Segmentation is the breaking up of a large network into smaller networks.

Answer 1

Too many hosts in a broadcast or collision domains.

Answer 2

Broadcast storms.

Answer 3

High network bandwidth.

Answer 4

Adding hubs for connectivity to the network.

Answer 5

They break up broadcast domains.

Answer 6

Routers do not break up collision domains.

Answer 7

Routers provide packet switching and packet filtering.

Answer 8

Routers provide internetwork communication.

Answer 9

There are 2 broadcast domains and 7 collision domains.

Answer 10

There are 2 broadcast domains and 8 collision domains.

Answer 11

There are 3 broadcast domains and 8 collision domains.

Answer 12

It is a hierarchical design and it divides the network communication process into smaller and simpler components thus aiding component development, design and troubleshooting.

Answer 13

It allows multiple-vendor development through standardization of network components and allows various types of network hardware and software to communicate.

Answer 14

Any changes in one layer can affect the other layer process.

Answer 15

It prevents changes in one layer from affecting other layers, so it does not hamper development.

Answer 16

Provides Dialog control and keeps different applications' data separate.

Answer 17

Presents data and handles processing such as encryption, compression, and translation services.

Answer 18

Provides logical addressing which routers use for path determination.

Answer 19

Provides a user interface. Also is associated with File, print, message, database, and application services. Applications do not reside in the application layer but rather interfaces with application layer protocols.

Answer 20

Is responsible for setting up, managing, and then tearing down sessions between Presentation layer entities.

Answer 21

It segments and reassembles data into a data stream It also responsible for providing mechanisms for multiplexing upper layer applications, establishing sessions, and tearing down virtual circuits. Its finally hides details of any network-dependent information from the higher layers by providing transparent data transfer.

Answer 22

The layer presents data to the Application layer and is responsible for data translation and code formatting. Data encryption and compression are additional functions of this layer.

Answer 23

This layer of the OSI Model is where users actually communicate to the computer. Its also responsible for identifying and establishing the availability of the intended communication partner and determining whether sufficient resources for the intended communication exist.

Answer 24

This layer of the OSI Model segments and reassembles data into a data stream. Its also responsible for providing mechanisms for multiplexing upper layer applications, establishing sessions, and tearing down virtual circuits.

Answer 25

This layer of the OSI model is responsible for setting up, managing, and then tearing down sessions between Presentation layer entities. This layer also provides a dialog control between devices or nodes. It coordinates communication between systems by offering three different modes: Simplex, Half Duplex, and Full Duplex. This layer basically keeps different applications' data separate from other applications' data.

Answer 26

This layer manages device addressing, tracks the location of devices on the network, and determines the best way to move data, which means that this layer must transport traffic between devices that are not locally attached.

Answer 27

This layer segments and reassembles data into a data stream. It provides end to end data transport services and can establish a logical connection between the sending host and destination host on an internetwork. Examples are TCP and UDP.

Answer 28

This layer provides the physical transmission of the data and handles error notification, network topology and flow control. It formats the message into pieces each called a data frame.

Answer 29

Its a connection that guarantees a way to establish communication through certain entities that provide retransmission of data.

Answer 30

Its an established session (Virtual Circuit) that is setup from the transmitting sender and receiving host using what is called a three-way-handshake or call setup. Data is then transferred until finished then a call termination takes place to tear down the virtual circuit.

Answer 31

Windowing controls how information is passed through the network using a transmitting technique that controls data flow.

Answer 32

Windows are used to control the amount of outstanding, unacknowledged data segments. The size of the window controls how much data is transferred from one end of the device to the other.

Answer 33

This layer transmits bits into bytes and bytes into frames. It provides the physical transmission of the data and handles error notification, network topology and flow control.

Answer 34

This layer communicates directly with the various types of actual communication media. It specifies the electrical , mechanical , procedural and functioning requirements for activating, maintaining, deactivating a physical link between end systems. This is where you find the DTE and DCE specifications.

Answer 35

This layer manages device addressing, tracks the location of the devices on the network., and determines the best way to move data, which means that the Network layer must transport traffic between devices that aren't locally attached. Two types of packets in this layer are routed protocols and routing protocols.

Answer 36

Routing protocols are used to transport user data through the internetwork. They are assigned to an interface and determine the method of packet delivery. Examples are IP and IPv6.

Answer 37

Routing Protocols are used to update neighboring router about the networks connected to all routers within the internetwork. Examples of routing protocols are OSPF, RIP, EIGRP, and RIPv2

Answer 38

Routed Protocols are used to update neighboring router about the networks connected to all routers within the internetwork. Examples of routing protocols are OSPF, RIP, EIGRP, and RIPv2

Answer 39

Routed protocols are used to transport user data through the internetwork. They are assigned to an interface and determine the method of packet delivery. Examples are IP and IPv6.

Answer 40

Its the layer where users actually communicates with the computer. Applications do not reside in this layer but it interfaces with application protocols. Examples are HTTP, DNS, SMTP, SMNP, Telnet, SSH, Print, database and application services.

Answer 41

Its the layer that is responsible for setting up, managing and then tearing down sessions between Presentation layer entities. It coordinates communication between systems and services by offering three modes: Simplex, Half Duplex, and Full Duplex.

Answer 42

This layer provides the physical transmission of the data and handles error notification, network topology, and flow control. This layer also ensures messages being delivered to the assigned device via hardware addresses with the devices examples of Switches and Bridges.

Answer 43

Media Access Control (802.3) defines how packets are placed on the media. Physical addressing is defined here as well as logical topologies which is the signal path through a physical topology. Provides error notification, and optional flow control.

Answer 44

802.1Q is an IEEE standard that supports layer 2 virtual local area networks. The standard defines a system of VLAN tagging for Ethernet frames.

Answer 45

Logical Link Control (LLC) 802.2 is responsible for identifying Network layer protocols and then encapsulating them. An LLC header tells the Data Link layer what to do with a packet once a frame is received.

Answer 46

Physical Layer sends and receives bits.

Answer 47

This layer specifies the electrical, mechanical, procedural, and functional requirements for activating, maintaining, and deactivating a physical link between end systems.

Answer 48

This layer identifies the interface between the data terminal equipment (DTE) and the data communication equipment (DCE). The DCE is usually located at the service provider and DTE is the attached device.

Answer 49

This layer provides end to end connection using voltage standards.

Answer 50

Routers perform packet switching, filtering and path selection.

Answer 51

Routers break up broadcast domains and reduce broadcast traffic.

Answer 52

Routers do not break up collision domains

Answer 53

Routers facilitate internetwork communications.

Answer 54

Ethernet is a trademark for a family of Ethernet technologies for Local Area Networks (LANs) was introduced in 1980 and standardized in 1985 as IEEE 802.3

Answer 55

Ethernet is a contention based media access method that allows all hosts on a network to share the same bandwidth of a link.

Answer 56

Ethernet is a protocol that provides end to end delivery method.

Answer 57

Cut-Through is a Ethernet architecture switching device technology. A cut-through device begins forwarding a frame after examining only the first part of its header

Answer 58

Cut-Through is a Ethernet architecture switching device technology. A cut-through device will buffer the entire frame before forwarding it .

Answer 59

Store and Forward is an Ethernet switch architecture technology that begins to forward a data packet once it reads the header part of the frame.

Answer 60

Store and Forward is an Ethernet switch architecture technology that will first buffer the entire frame before making a forwarding decision.

Answer 61

10.0.0.0 - 10.255.255.255 range using 10.0.0.0/8

Answer 62

172.16.0.0 - 172.31.255.255 range using 172.16.0.0/20

Answer 63

192.168.0.0 - 192.168.255.255 range using 192.168.0.0/16

Answer 64

10.0.0.0 - 10.255.255.255 range using 10.0.0.0/8

Answer 65

172.16.0.0 - 172.31.255.255 range using 172.16.0.0/20

Answer 66

192.168.0.0 - 192.168.255.255 range using 192.168.0.0/16

Answer 67

10.0.0.0 - 10.255.255.255 range using 10.0.0.0/8

Answer 68

172.16.0.0 - 172.31.255.255 range using 172.16.0.0/20

Answer 69

192.168.0.0 - 192.168.255.255 range using 192.168.0.0/16

Answer 70

Its a 32 bit decimal-dotted network address

Answer 71

Its a 64 bit colon-delimited hexadecimal address

Answer 72

Its a 128 bit colon-delimited hexadecimal address

Answer 73

There are sixteen 8 bit fields separated by colon in hexadecimal format

Answer 74

There are thirty two 8 bit fields separated by colon in hexadecimal format

Answer 75

There are eight 16 bit fields separated by a delimited colon in hexadecimal format

Answer 76

You can suppress all leading zeroes in IPv6 with double colons

Answer 77

You can only suppress on set of leading zeroes in IPv6 with double colons

Answer 78

There is a Time to Live (TTL) in IPv6 which the maximum is 255

Answer 79

The Time to Live (TTL) has been renamed to hop-count which is the default is 64 and can go up to 255.

Answer 80

IPv6 provides three address types which are unicast (address for a single interface), multicast (one to many), anycast (one to nearest)

Answer 81

IPv6 address types are global, reserved, link-local, and site-local.

Answer 82

IPv6 has a 32 bit colon-delimited hexadecimal.

Answer 83

Every IPv6 enabled interface contains at least one loopback and one link-local address.

Answer 84

Dynamically created on all IPv6 interfaces by using a specific link-local prefix (FE80::/10) and a 64-bit interface identifier.

Answer 85

one to nearest IPv6 address type.

Answer 86

All anycast nodes should provide uniform service.

Answer 87

Hosts can be assigned an IP address with the use of DHCP

Answer 88

IPv6 can provide enough IP addresses to assign more than 4 million IP addresses to every person on earth.

Answer 89

IPv6 eliminates the requirement for NAT.

Answer 90

Hosts can be assigned without the use of DHCP.

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Internetworking Basics

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