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124 Cards in this Set
- Front
- Back
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What Air Force instruction series covers communications and information?
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33
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What Air Force publication establishes policy on how C4 systems are acquired, operated, and maintained?
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AFPD 33-1
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What Air Force publication identifies responsibilities for supporting critical Air Force communications and information networks, primarily through network control centers?
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AFI 33-115, Volume 1
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What Air Force publication provides the policy and procedures for certifying network professionals who manage and operate government-provided informaiton systems on Air Force networks?
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AFI 33-115, Volume 2
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What organization does communication and information services entering and exiting the base or site fall under the operational control of?
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Base Network Control Center
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What function within the Network Control Center provides technical assistance to the unit funtional system administrators and workgroup managers?
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Network administration
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Whose network area of responsibility starts at the user's terminal and ends at the server, but does NOT include the network backbone infrastructure componen
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Unit funtional systems administrator
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What Air Force Instruction sets the policies that unit client support administrators must comply with?
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33-115
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What Network Control Center function responds to detected security incidents, network faults (error), and user reported outages at the time of help desk referral?
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Network management
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What Network Control Center function is the central point of contact for network distribution and maintenace/update of an Air Force Computer Emergency Response Team and automated systems security and antivirus software?
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Configuration management
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Performance management can be broken into which two separate functional categories?
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Monitoring and tuning
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To determine the level of network service provided to the users, you will make a measurement of the total response time
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rejection rate and availability of the network
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What Network Control Center function increases network reliability by giving the network manager tools to detect problems and initiate recovery procedures?
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Fault management
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What does Network Security work to ensure about a network?
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Availability, confidentiality, and integrity of data
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Which of the following are jobs performed by a help desk technician on a daily basis?
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Network manitoring, account unlocks, and account creations
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Within the Network Control Center, what function is initially responsible for taking trouble calls, deciding what type of problem has occureed, and what to do about the problem?
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Help destk
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What is one of the most important communications skills you can develop as a help desk operator?
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Listening
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What software is used to open trouble tickets for customer trouble calls?
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Remedy
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What is a set of subnets that are connected with routers?
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Internetwork
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What is a set of systems/nodes on a local segment that can be off of a switch or a router?
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Intranetwork
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What type of network environments consist of computer systemns from different vendors that run different operating systems and communication protocols?
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Heterogeneous network
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What type of network is made up of components from the same vendor or compatible equipment that all run under the same operating systems or network operating system?
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Homogeneous network
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What type of communications network serves users within a confined geographical area?
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Local area network
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What type of communications network links geographically dispersed offices in other cities or around the globe?
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Wide area network
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How many users are in a peer-to-peer network?
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2 to 10
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How many users are in a single-server network?
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10 to 50
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How many users are in a multi-server high-speed backbone network?
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250 to 1000
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In most cases the frequencies used by wireless networks are in what frequency band?
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Industrial, scientific, and medical (ISM)
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What is the distorting and/or weakening of a signal as it traverses the media called?
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Attenuation
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What is a measurement of data transferred through the medium between network connections?
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Throughput
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What is a form of communicaiton that transmits information as a serial stream of bits or bytes?
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Asynchronous communication
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Which of the following categories of twisted-pair cable has the highest throughput?
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Cat 5
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A fiber optic network uses a laser or light-emitting diode to send a signal through what portion of the cable?
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Core
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Light signals in fiber optic cables can travel distances in excess of how many miles before they need to be boosted?
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100
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What type of optic fiber is used to span extremely long distances?
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Single mode
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What type of optic fiber is designed for the local area network environment and light is typically generated with a light emitting diode?
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Multi mode
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What are the principal advantages of fiber optics with present day transmission technology?
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Sturdiness and security
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What network topology consists of a single central cable to which all computers and other devices connect?
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Bus
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What is the greatest risk to a bus network?
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The bus itself becoming inoperable
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On what network topology, can multiple transmit frames co-exist?
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Fiber Distributed Data Interface
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What is the major Department of Defense contribution to networking?
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The Transmission Control Protocol/Internet Protocol Suite
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What is a set of rules that define how communications are to take place in a network, including the format, timing, sequences, and error checking and correction?
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A protocol
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What layer of the Open Systems Interconnection reference model is really a set of rules regarding the hardware used to transmit data?
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Physical
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What layer of the Open Systems Interconnection reference model provides the grammar by which machines converse with each other and serves as a vehicle for information transmission?
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Data Link
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What layer of the Open Systems Interconnection reference model prevents a fast computer from overwhelming a slow terminal?
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Transport
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A feature which involves the peridic insertion of points into data from which any recovery necessary can be started is known as what?
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Checkpointing
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Which layer of the Open Systems Interconnection model is concerned with network security, file transfers, and formatting functions?
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Presentation
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The IEEE 802.3 standard describes a local area network using what kind of topology?
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Bus
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What protocol is used by the IEEE 802.3 standard to avoid collisions on the network?
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Carrier Sense Multiple Access/Collision Detection
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What does a station specifically send when it sends a general request through the network asking any station to respond to receive the token?
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Solicit successor frame
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The IEEE 802.5 standard was developed to cover what local area network topology?
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Roken ring
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Why can a token ring network cover a greater distance than a token bus network without loss of signal?
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Because each workstation repeats the signal
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What X series protocol is a Message Handling System (MHS) standard, that defines the structure of a store-and-forward e-mail message handling system?
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X.400
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What X series protocol is a Directory Services specification standard that defines the structure of a store-and-forward e-mail message handling system?
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X.500
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Which protocol of Transmission Control Protocol/Internet Protocol provides a connectionless datagram "network access" layer?
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Internet Protocol
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Which protocol of Transmission Control Protocol/Internet Protocol is a connection oriented, reliable, host-to-host transport protocol?
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Transmission Control Protocol
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What makes it possible for implementers to produce new Network File System systems without having to reconstruct their own system's internal data representation formats to suit Network File System?
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eXternal data representation
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As information passes down through the protocol layers, what is the packet that is formed called?
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Protocol data unit
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What is the only layer in the Open Systems Interconnection reference model that simply transmits the completed frame?
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Physical
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What layer in the Open Systems Interconnection reference model adds a trailer to the packet?
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Data Link
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In the Ethernet environment, what is the minimum number of octets in a frame so it can be sent and received?
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46
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What is used to identify network nodes on a physically connected network?
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Media access control address
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What is the binary equivalent to the dotted decimal number 96?
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01100000
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How many octets is the standard Internet Protocol broken down into?
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4
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What type of mask is used within a network that uses the same amount of bits for masking for all subnetworks?
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Standard
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What communications device converts binary electrical signals into acoustic signals for transmission over telephone lines?
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Modem
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What communications device is used for converting anolog signals to digital for transmission on digital lines?
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Codecs
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What Network Interface Card Module drives the signal onto and from the physical medium?
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Transmit/Receive
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What Network Interface Card module converts information into a coded data stream?
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Encode/Decode
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What Network Interface Card module temporarily holds data for processing to or from the network?
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Frame Buffering
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What network component serves as a central connection point and is used to extend the physical media by repeating the signal it receives in one port out to all the other ports indiscriminately?
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Hub
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What type of hub has special capabilities for configurations and or management?
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An intelligent hub
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What network condition usually begins slowly and (if not stopped) gradually grows in severity until all traffic flow on the network is effectively stopped?
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Broadcast Storm
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What is a group of devices connected to the same physical media such that if two devices access the media at the same time, the result is a collision of the two signals?
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A collision domain
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The purpose of a network repeater is that it?
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regenerates any signal received
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What is a local area network connection device with two or more ports that forwards frames from one LAN segment to another?
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Bridge
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What are the four basic function of a bridge?
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Listen, learn, filter, forward
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Bridging loops are created when
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there is more than one path to the destination
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What is used to logically eliminate loops within a network?
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Spanning Tree Algorithm
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The bridge in a network with the highest priority (the lowest number) is called the
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Root
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Switching conducted at the layer 2 category is based solely upon what information?
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The Media Access Control address
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Switching conducted at the layer 3 category is based upon what information?
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The Media Access Control and Internet Protocol address
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What type of switch is limited in its applications to small workgroups where throughput is an issue but where potential network errors will NOT upset the network?
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Cut through
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What type of switch reads the first 64 bytes before forwarding the frame?
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Fragment free
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What is the technology called that allows Network Interface Card (NIC) to determin the type of Ethernet signal transmitted by a device at the other end and adjust its speed to the highest common speed between the two devices?
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Auto negotiation
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What is a logical grouping of end stations, independent of physical location, with a common set of requirements called?
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Virtual local area network
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Virtual local area network
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Port grouping
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At what level of the Open Systems Interconnection models does a router work?
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Network
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What is the primary device used for connecting these networks, both within and between networks?
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Router
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The function performed by a router to move information from one router to another according to decided path determinations is...
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Switching
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What type of routing is the establishment of routes by the network administrator that changes only when done manually?
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Static routing
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What type of routing involves the use of routing protocols that adjust real-time to changing network circumstances?
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Dynamic routing
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In what Dynamic Routing protocol MUST packets go the complete distance before discovering the destination is unreachable?
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Distance vectoring
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What routing metric is generally based upon the bit-error rate of the link?
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Reliability
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What prevents a router from sending route information back to the router from which it came?
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Split horizons
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What acts as a translator between two workstations or networks that use different operating systems, communication protocols, and data format structures?
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Gateway
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Where is the backup copy of the Cisco Internet Operating System Configuration information stored in the internetworking device?
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Nonvolatile random access memory
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What are the network connections through which network traffic enters and exits a router called?
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Interfaces
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What prompt is displayed when in the User Exec mode on a router?
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Router>
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What prompt is displayed when in the Privileged Exec mode on a router?
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Router #
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From what level can all other command modes be accessed?
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Privileged Exec level
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From what mode is the "banner motd" command used in?
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Global configuration mode
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What command is used to restrict access to the privileged Exec mode?
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Password
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What command interface configuration command is used to activate an interface?
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No shutdown
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To view the current configuration of a router, what command is used from privileged exec mode?
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Show running
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What command is used to change the bootup values within ROM monitor mode?
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Confreg
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What filters network traffic by controlling whether routed packets are forwarded or blocked at a router's interface?
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Access control lists
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What do all access lists end with?
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Implicit deny
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Router access lists MUST be applied to
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interfaces
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What does a standard access lists use to filter packets?
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Source Internet Protocol address
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What is the range of numbers that represent standard access lists?
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1-99
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What kind of server is set aside to perform a specific task or function all the time?
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Dedicated server
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what network type normally utilizes non-dedicated servers?
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Peer-to-peer
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What is required due to the differences between the physical speed of the print device and the processing speed of the workstation generating the print job?
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Print queues
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What frees the computer's attention so the user can continue working while waiting for a document to print?
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Print spooling
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What type of server is a bundle of application software designed to significantly improve network efficience and productivity?
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Network Management System
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What two types of environments are network operating systems implemented upon?
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Peer-to-peer and client server
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Whithin the Windows environment, what is the central repository for the entire software and hardware configuration settings in a computer running the Windows based NT operating system?
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Registry
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What is a set of keys, subkeys, and values from the registry stored in its own file location called?
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Hive
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Data in which root-key determines which device drivers and dervices will load during the boot process?
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HKEY_LOCAL_MACHINE
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What is a set of statistical measurements made over a period of time that characterizes network performance?
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Baseline
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What is a detailed analysis of the performance of a specific application or a specific network element?
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Benchmark
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What network performance criteria is the most significant statistic to be collected and calculated?
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Network availability
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The measurement of traffic volume actually being carried by the network, typically expressed in kilobytes per second is
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data throughput
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