COMP 4320 - Auburn University Biaz M1-9 Exam Questions And Answers

The Internet is a network covering typically _____ - ANS A planet Transmission lines on WANs are in general made of _______. - ANS Radio links optical fiber copper wire Your wireless network at home is a _____ - ANS LAN ___ connect two or more ___ - ANS switches, transmission lines On networks, the machines that run users programs (applications) are most likely called ________. - ANS hosts On a ______________ network, frames (packets) sent by any machine on that link are received (heard) by a subset of machines. - ANS multicast A wide area network (WAN) is a network covering typically _____ - ANS A planet Country Continent Wifi uses the ____________ standard. - ANS IEEE 802.11 _________ is the design issue that consists of avoiding that a sender overwhelms a receiver. - ANS Flow Control (Congestion Control is Receiver + Nodes) _________ ________ is the design issue that consists of finding errors in the received information. - ANS error detection A network is a set of ___________ devices which can communicate. - ANS independent To reduce their design complexity, most networks architectures are organized as ___________. - ANS levels, stacks, layers ________________ consists of correcting errors in the received information. - ANS error correction Congestion Control insures that a [Select] does not overwhelms the [Select] - ANS sender, intermediary nodes and receiver Layers at the same level on two communicating machines are called _________ . - ANS peer layers The purpose of each layer is to offer services to the layer just ________ it. - ANS above This course will focus on two reference models. - ANS TCP/IP Reference Model OSI Reference Model Check all that apply to the OSI reference model. - ANS It is a good education tool to understand networks It is an international standard of networks It is a thorough representation of computer networks A 1 gigabits/s (Gbps) bit rate is _____________ bits per second. - ANS 1,000,000,000 _________ is the design issue that consists of identifying the senders and receivers. - ANS addressing Your wireless network at home (to access the Internet) uses most likely the ________ standard. - ANS IEEE 802.11 On WANs, switches are called ___________. - ANS routers Bluetooth is a technology that could work for these types of networks - ANS PAN (Personal Area Network) LAN (Local Area Network) Layered design consists of ________________. - ANS restricting communications to adjacent or peer layers layers hiding details from each other dividing a complex task in multiple subtasks A protocol defines the communications rules between _________ layers. - ANS peer _________________ is the design issue that consists of finding a path (list of switchs to traverse) between a source host and a destination host. - ANS Routing A list of the protocols used by certain system, one protocol per layer, is called a _______ __________. - ANS protocol stack _________ ________ is the design issue that consists of correcting errors in the received information. - ANS Error correction Each layer requests service(s) from the layer just ________ it. - ANS below The key objectives/benefits of a layered design are: - ANS The serviced layer does have to worry about the details belonging to the serving layer (service provider) Simplify a complex function/service by partitioning it into smaller functions _________ is the design issue that consists of avoiding that a sender overwhelms the receiver and any intermediary nodes. - ANS Congestion control The rules governing the request/delivery of a service between adjacent layers is called _______________. - ANS an interface In the OSI reference model, the [name1] layer provides service directly to the application layer. - ANS presentation In the OSI reference model, the [name1] layer receives service directly from the session layer. - ANS presentation In the OSI reference model, this layer is an intruder (i.e., it does not belong within this list of options). - ANS Application ------------------------------------------ Physical None of the above Network Application Data Link The number of layers in the OSI Reference model is ____________ . - ANS seven In the OSI reference model, the [name1] layer provides service directly to the data link layer. - ANS physical The OSI Reference Model includes this (these) layer(s). - ANS Transport Physical Application In the OSI reference model, these layers are point to point layers. - ANS Physical Data link Network In the OSI reference model, the [name1] layer receives service directly from the data link layer. - ANS Network This (These) layer(s) are part of the OSI Reference Model. - ANS Physical Data Link Network In the OSI reference model, this layer is an intruder (i.e., it does not belong within this list of options). - ANS Session ------------------------------------------ Network Session None of the above Physical Data Link In the OSI reference model, these layers are active on only devices at the end points of a conversation. - ANS Application Transport Session Presentation In the OSI reference model, the [name1] layer provides service directly to the network layer. - ANS data link In the OSI reference model, this layer is an intruder (i.e., it does not belong within this list of options). - ANS Data Link ------------------------------------------ None of the above Application Presentation Data Link Transport