Term
| The 7 Layers of the OSI Model |
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Definition
1.Application
2.Presentation
3.Session
4.Transport
5.Network
6.data link
7.physical |
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Term
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Definition
| Name the primary name resolution service used on the Internet and Microsoft Networks and the layer it is on. |
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Term
| Hypertext Transfer Protocol (HTTP) |
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Definition
| Name the primary protocol used to transmit data across the internet for web pages, and the layer it is on. |
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Term
| File transfer Protol (FTP) |
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Definition
| Name the protocol used to transfer files to and from computers over the internet, and the layer it is on. |
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Term
| Trivial FTP (TFTP) from hosts to routers. |
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Definition
| Name the protocol used to transfer small files, to __________ network devices. |
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Term
| DHCP. What does this mean and what network layer does it reside? |
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Definition
| Dynamic Host Configuration Protocol is a method of dynamically assigning TCP/IP configuration information to clients. It is an Application layer protocol. |
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Term
| Name all the protocols utilized on the Application layer and their functions |
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Definition
DNS -
HTTP -
FTP -
TFTP -
DHCP -
LDAP -
POP3 -
SMTP -
IMAP -
SNMP -
SMB - |
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Term
| What layer formats and presents data as a translator? |
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Definition
| Presentation Layer (5) performs operations such as: |
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Term
| The layer responsible for establishing connection and ending connections between nodes. |
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Definition
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Term
| What Layer deals with error checking as well as packetizing (segmenting)? |
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Definition
| Transport layer is responsible for error checking and dividing data into smaller chunks, or segments, and also reasembles received data. |
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Term
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Definition
| Transmission Control Protocol first must establish a session to connect with another host. It is a connection-oriented protocol for data transmission. |
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Term
| What layer are Port numbers assigned and why are they necessary concerning the data being delivered |
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Definition
| Port numbers are assigned on the Transport Layer and define what protocol, application or service should process the data on the destination Host. |
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Term
| Define the difference between a logical and physical port |
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Definition
| Logical port is a numerical assignment to an application, protocol or service which directs data to that service on the host computer. Physical port is a connection point for a physical device such as wire plug into a switch port. |
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Term
| Distinction between TCP and UDP |
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Definition
| TCP is a connection-oriented protocol which opens a session in order to establish the transfer of data. UDP is connection-less which does not verify or open a session before data is transmitted to a desintaiton host. |
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Term
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Definition
| Data Link Layer: Provides flow and error control and allows multiple protocols to work simultaneously. |
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Term
| What does MAC stand for and its function |
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Definition
| MAC is Media Access Control, which defines how packets are placed onto the physical wire. Also called the physical address which is a unique identifier of a device or host. |
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Term
| PPTP is used for what type of connection? |
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Definition
| Point to point tunneling protocol typically used with VPN's. |
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Term
| ATM - packet structure and where used. |
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Definition
| Asynchronous Transfer Mode is a method of transferring data into small fixed-sized cells and transferred over the network. used in WAN's. |
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Term
| Frame relay - what it is and where used? |
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Definition
| Another WAN technology. data converted to variable-sized frames and transferred over permanent virtual circuits. |
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Term
| What is a packet? and what does it contain and what layer is it defined on the OSI model? |
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Definition
| A packet is build on layer 3: network layer and consists of an IP header and data block. IP header is used to get the data packet from source to destination host. |
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Term
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Definition
| PDu is Protocol Data unit and contains all the necessary header information to get the data sent from the source to its destination. |
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Term
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Definition
| Layer 4, transport layer. TCP uses source and destination port numbers which identifies the application, protocol, or service used in the Application layer. |
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