Network + Exam Review Flashcards
Pass The First Time
What are the three basic LAN topologies
Bus, Ring, and Star
What common WAN topology often results in multiple connections to a single site (leading to a high degree of fault tolerance) and has one-to-many connections
MPLS (Multiprotocol Labe Switching)
What is the term for a device that shares its resources with other network devices?
Server
What network model draws a clear distinction between devices that share their resources and devices that share their resources and devices that do not?
Client-Server
Which network topology or connection type can be implemented with only two endpoints?
Point-to-point
What device is generally implemented as a star topology?
Hub or switch
What does MPLS stand for?
Multiprotocol Label Switching
What does WAN stand for?
Wide area network
Will a computer that shares no resources most likely be connected to the backbone or to a segment?
A segment
Which LAN topology is characterized by all devices being daisy-chained together with the devices at each end being connected to only one other device?
Bus
Which layer chooses and determines the availability of communicating partners along with the resources necessary to make the connection, coordinates partnering applications, and forms a consensus on procedures for controlling data integrity and error recovery?
The Application layer is responsible for finding the network resources broadcast from a server and adding flow control and error control (if the application developer chooses)
Which layer is responsible for converting frames from the Data Link layer into electrical signals?
The Physical Layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium
At which layer is routing implemented, enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing
Which layer defines how data is formatted, presented, encoded, and converted?
The Presentation layer makes sure that data is in a readable format for the Application layer
Which layer is responsible for creating, managing, and terminating sessions between applications?
The Session layer sets up, maintains, and terminates sessions between applications
Which layer manages the transmission of data across a physical link and is primarily concerned with physical addressing and the ordered delivery of frames?
Protocol data units (PDUs) at the Data Link layer are called frames. As soon as you see the word frame and/or term physical addressing in a question, you know the answer is always Data Link layer
Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing, maintaining, and terminating virtual circuits as well as controlling the flow of information?
The Transport layer uses virtual circuits to create a reliable connection between two hosts
Which layer provides logical addressing that routers use for path determination?
The Network layer provides logical addressing, IP and/or IPv6 addressing, and routing
Which layer specifies voltage, wire speed, and connector pin-outs and moves bits between devices?
The Physical layer is responsible for the electrical and mechanical connections between devices
Which layer combines bits into bytes and bytes into frames and uses MAC addressing?
The Data Link layer is responsible for the framing of data packets
Which UTP wiring uses four twisted wire pairs (eight wires) and is rated for 250 MHz?
Cat 6
The point at which the operational control or ownership changes from your company to a service provider is referred to as what?
Demarcation point or demarc
Which type of cable will you use to connect two switches to each other?
Crossover
Which RG rating of coax is used for cable modems?
RG-6
