ISTM 210 Exam 2 Curtsinger Questions and
Answers 100% Pass
Computer Network - ANSWER ✔✔-defined as two or more computers connected together to
communicate and share resources.
Server - ANSWER ✔✔-Consider a network made up of computers like desktops, laptops, and
smartphones (called clients) that are connected to a central computer
Node - ANSWER ✔✔-Any device connected to the network that has an IP address
Network - ANSWER ✔✔-2 or more computers
Network Interface Card (NIC) - ANSWER ✔✔-is plugged into a slot on the motherboard inside of the
computer and allows a network cable to be plugged in so it can interface or communicate with other
computers.
Ethernet Card - ANSWER ✔✔-Most common NIC (UIN)
MAC (media access control) address - ANSWER ✔✔-Ethernet cards provide the computer with a unique
48-bit address
Network Admin - ANSWER ✔✔-Business processes to become efficient/effective
Ex: large business - more people/technology - top level - assigned different going lower level/employees
Small business - 1 person from start to finish
Twisted Pair - ANSWER ✔✔-A twisted pair is a specialized wire that cancels out electromagnetic
interference from other electronic devices and increases reliability.
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Ethernet Cable - ANSWER ✔✔-specialized wires with adapters that plug into the NIC
Network Hub - ANSWER ✔✔-a central location of the computer network that serves as a traffic cop for
network connection and communication.
Peripheal Devices - ANSWER ✔✔-Hardware such as keyboard or mouse, no IP address
Transmission Control Protocol/Internet Protocol (TCP/IP) - ANSWER ✔✔-TCP/IP checks to see that the
receiving computer accepts all of the packets that make up the spreadsheet and that the packets are in the
correct order. If not, the spreadsheet will be corrupted and not usable for the receiving end user. TCP/IP
guarantees the reliability of the computer file received by the network's end user.
Packets - ANSWER ✔✔-spreadsheet's large file size, the network breaks the file down into smaller, more
manageable pieces
User Datagram Protocol (UDP) - ANSWER ✔✔-UDP protocols simply send the entire file at once in a
streaming fashion, it is much faster than TCP/IP. However, UDP does not guarantee a file's reliability.
Internet - ANSWER ✔✔-- Large Vast Network
- Cables: run through ground/ocean floor
- Clinet (desktop) -> Server
- 97% of all network failures caused from human interference
- 74% of all businesses have had network outages
Topology - ANSWER ✔✔-the mapping of a physical network and logical interconnections between nodes
Linear Bus - ANSWER ✔✔-a network topology where each of a network's nodes is connected to a
common linear backbone that has two endpoints. Data is transmitted between the two endpoints and the
nodes are connected to the backbone. One advantage of a bus topology is that all nodes can receive data
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virtually simultaneously. A disadvantage, however, is that if the backbone is down, all nodes on the
backbone are down as well.
-single wire
-all of the devices
-30 nodes or less
-two end points
-easy, cheap
Star - ANSWER ✔✔-is named for the star-shape created by nodes that radiate around a central node in a
spoke-like fashion. The center of the "star" is the hub that attaches to the nodes with "spokes." Often, the
hub is a server with networked computers and nodes as clients, thus, a client / server model. Star
topologies have similar disadvantages to the linear bus configuration; if the central hub fails, every node
attached to the hub will also fail. Star topologies are the most common of all topologies.
-expense, efficient (Mays 2nd floor)
-easy to expand, easy to identify if a device goes down
-if switch goes down, everything goes
Ring - ANSWER ✔✔-is shaped like a ring. In this kind of topology, each computer (node) is connected to
two other computers in the network with the first and last computers being connected to each other. Data
is transmitted between computers in a circular manner. Ring topologies are the least used topology with
microcomputers. In a ring topology, if the traffic cannot flow in one direction, then it can try to flow in
the other direction around the ring. This makes it more robust in the sense that there is no hub through
which all the traffic flows.
-circular
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