Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
57 Cards in this Set
- Front
- Back
|
At what layers do gateways function?
|
the Transport layer and above
|
|
|
What layer provides network access for applications?
|
the Application layer
|
|
|
What layer provides flow control?
|
the Transport layer
|
|
|
What layer establishes the availability of other computers on the network?
|
the Application layer
|
|
|
What layer determines if sufficient resources exist for communication to occur between two computers?
|
the Application layer
|
|
|
What layer does SMTP function at?
|
the Application layer
|
|
|
What layer does FTP function at?
|
the Application layer
|
|
|
What layer does SNMP function at?
|
the Application layer
|
|
|
What layer does Telnet function at?
|
the Application layer
|
|
|
what layer does Appletalk function at?
|
the Application layer
|
|
|
What layer performs protocol conversion?
|
the Presentation layer
|
|
|
What layer performs encryption?
|
the Presentation layer
|
|
|
What layer performs compression?
|
the Presentation layer
|
|
|
What layer synchronizes computers involved in a communication?
|
the Session layer
|
|
|
What layer handles connection establishment, data transfer, and connection release?
|
the Session layer
|
|
|
What layer does NetBIOS function at?
|
the Session layer
|
|
|
What layer repackages messages into smaller formats?
|
the Transport layer
|
|
|
What layer provides error-free delivery and error handling functions?
|
the Transport layer
|
|
|
What layers does NetBEUI function at?
|
the Transport and Network layers
|
|
|
What layer does TCP function at?
|
the Transport layer
|
|
|
What layer does SPX function at?
|
the Transport layer
|
|
|
What layers does NWLink function at?
|
the Transport and Network layers
|
|
|
What layer handles logical addressing?
|
the Network layer
|
|
|
What layer handles routing?
|
the Network layer
|
|
|
What layer handles traffic management?
|
the Network layer
|
|
|
What layer does IP function at?
|
the Network layer
|
|
|
What layer does IPX function at?
|
the Network layer
|
|
|
What devices function at the Network layer?
|
rounters and brouters
|
|
|
What layer packages raw bits into frames?
|
the Data Link layer
|
|
|
What is the purpose of packaging raw bits into frames?
|
they are transmittable across a network
|
|
|
What layer includes a Cyclical Redundancy Check (CRC)?
|
the Data Link layer
|
|
|
What are the two sublayers of the Data Link layer?
|
the Logical Link Control (LLC) and the MAC sublayers
|
|
|
What does the LLC sublayer use to create links for the MAC sublayer?
|
Destination Service Access Points and Source Service Access Points
|
|
|
What devices function at the Data Link layer?
|
switches, bridges, and brouters
|
|
|
What devices function at the Physical layer?
|
multiplexers and repeaters
|
|
|
How many bits are in a MAC address?
|
48 bits
|
|
|
What protocol is used to map MAC addresses to IP addresses?
|
ARP
|
|
|
What OSI layer is responsible for formatting data as the application layer is expecting? |
the Presentation layer |
|
|
What do routed and routing protocols do? |
Routed protocols: logical addressing and forwarding |
|
|
What type of protocol is responsible for logical addressing and forwarding? |
Routed protocols |
|
|
What type of protocol is responsible for path determination? |
Routing protocols |
|
|
What OSI layer is responsible for managing data within a local (non-routed) network by physical address? |
Data Link layer |
|
|
What OSI layer is responsible for putting data on the physical medium? |
Physical layer |
|
|
What is data encapsulation? |
At each layer, the data from the previous layer is encapsulated with the layer's header |
|
|
What OSI layer adds a trailer to the PDU? |
Data Link Layer |
|
|
What OSI layer does Telnet operate at? |
Application layer |
|
|
What OSI layer does HTTP operate at? |
Application layer |
|
|
What OSI layer does FTP operate at? |
Application layer |
|
|
What OSI layer does SMTP operate at? |
Application layer |
|
|
What OSI layer does TFTP operate at? |
Application layer |
|
|
What OSI layer does DNS operate at? |
Application layer |
|
|
What OSI layer does DHCP operate at? |
Application layer |
|
|
What OSI layer does TCP operate at? |
Transport layer |
|
|
What OSI layer does UDP operate at? |
Transport layer |
|
|
What is the range of "common ports"? |
1-1024 |
|
|
What port does the communication source use? |
a random port above 1024 |
|
|
What 3 parts make up a socket? |
IP address + protocol (TCP or UDP) + port number |
