• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/124

Click to flip

124 Cards in this Set

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