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Definition
| Social engineering practice in which a person attempts to glean or authentication information by posing as someone who needs that information |
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Definition
| In an attack a person redirects or captures secure transmissions as they occur |
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Definition
| Software searches a node for open ports |
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Term
| Transmission and Hardware |
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Definition
| A router that is not configured to drop packets that match certain or suspicious characteristics is an example of a risk associated with_____ |
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Definition
| A NOS that contains a back door is an example of a risk associated with____ |
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Definition
| An attack occurs when an internet chat user sends commands to a victims machine that causes the screen to fill with garbage characters and requires the victim to terminate their chat sessions. |
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Definition
| An attack occurs when a system becomes unable to function becasue it has inundated with requests for services and cannot respond to any of them. |
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Definition
| A ____main function is to examine packets and determine where to direct them based on their network layer addressing information. |
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Definition
| A___firewall is a router (or computer installed with software that enables it to act as a router) that examines the header of every packet of data it receives to determine whether that type of packet is authorized to continue to its destination. |
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Definition
| An attack occurs when a hacker uses programs that try a combination of a user ID and every word in a dictionary to gain access to the network. |
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Definition
| The combination of a public key and a private key is known as a ____ |
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Definition
| An ____is a password protected and encrypted file that holds an individual identification information, including a public key. |
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Definition
| The use of certificate authorities to associate public keys with certain users in known as __ |
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Definition
| Public key encryption system that can verify the authenticity of an email sender and encrypt email data in transmission. |
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Definition
| Method of encrypting TCP/IP transmissions above the network layer. |
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Definition
| In ___a hacker forges name server records to falsify his host's identity. |
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Definition
| A VPN authenticates VPN clients and establishes tunnels for VPN connections. |
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Term
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Definition
| __Protocols are the rules that computers follow to accomplish authentication. |
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Definition
| In___both computers verify the credentials of the other. |
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Term
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Definition
| The use of one network to simultaneously carry voice, video, and data communications. |
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Term
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Definition
| Describes the use of any network to carry voice signals using the TCP/IP protocol. |
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Term
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Definition
| When VoIP relies on the internet |
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Term
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Definition
| IPTV, videoconferencing, streaming video, and IP multicasting belong to the range of services |
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Term
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Definition
| Messaging is a service that makes several forms of communications available from a single user interface. |
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Definition
| Using VoIP over a WAN allows an organization to avoid paying long distance telephone charges. |
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Term
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Definition
| When using an analog telephone a VoIP adapter that performs analog-to-digital conversion is known as ____ |
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Term
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Definition
| In general a ___is a private switch that accepts and interprets both analog and digital voice signals. |
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Term
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Definition
| When a caller uses an IP telephone, his or her voice is immediately digitized and issued from the telephone to the network in ___form. |
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Term
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Definition
| A computer programmed to act like an IP telephone |
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Definition
| The popular internet telephony software |
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Definition
| Among all video over IP applications this is the most simplest |
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Term
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Definition
| One drawback to __video is that content may not be edited before it's distributed. |
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Term
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Definition
| Many streaming video services-and nearly all of those issued over a public network such as the internet are examples of ____transmissions |
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Definition
| When more than two people participate in a video conference, for example in a point -to multipoint or multipoint to multipoint scenario, a video ___is required. |
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Term
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Definition
| Signaling function are more limited than those performed by the protocols in the H.323 group. |
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Term
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Definition
| SIP and H.323 regulate___for VoIP or video over IP clients and servers |
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Term
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Definition
| A __is a computer that manages multiple media gateways |
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Definition
| Many network engineers consider__to be superior to MGCP |
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Definition
| is preferred over TCP for real-time applications such as telephone conversations and videoconferencing |
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Term
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Definition
| is a measure of how well a network service matches its expected performance. |
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Definition
| An administrator should take the time to troubleshoot all network problems correctly by asking specific questions designed to identify the problem____ |
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Term
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Definition
| Are often considered first level support |
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Definition
| are often considered third level support |
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Term
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Definition
| is one of the most important aspects to consider when looking at how a problem solution might affect users and network functionality |
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Definition
| A __system is a process or program that provides support personnel with a centralized means of documenting changes to the network. |
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Term
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Definition
| A ___is a small electronic device that issues a signal on a wire pair |
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Term
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Definition
| is a fundamental property of wire that depends molecular structure and size. |
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Term
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Definition
| Resistance is measured in Ohms |
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Term
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Definition
| is the tell tale factor for ascertaining where faults in a cable lie. |
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Term
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Definition
| When used on a copper based cable a continuity tester applies a small amount of ___to each conductor at one end of the cable. |
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Term
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Definition
| A ___can be used to intercept a telephone conversation |
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Definition
| A ___is a software based tool that continually monitors network traffic from a server or workstation attached to the network. |
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Term
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Definition
| To take advantage of network monitoring and analyzing tools, the network adapter installed in the machine running the software must support ___mode. |
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Term
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Definition
| Packets exceed the mediums maximum packet size |
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Term
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Definition
| Frames that are not actually data frames, but aberrations caused by a device misinterpreting stray voltage on the wire. |
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Term
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Definition
| Usually results from a bad NIC |
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Term
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Definition
| Can generate traffic in an attempt to reproduce a network problem and monitor multiple network segments simultaneously. |
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Term
| Protocol Analyzer/Type of tool |
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Definition
| The danger in using a ___is that it could collect more information than you or the machine can reasonably process. |
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Term
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Definition
| Before using a network monitor or protocol analyzer on a network, it is important to know ___on your network normally looks like. |
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Term
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Definition
| A __tool that can assess the quality of the wireless signal |
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Term
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Definition
| intended to eliminate single points of failure |
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Definition
| A program that disguises itself as something useful but actually harms your system |
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Term
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Definition
| Programs that run independently and travel between computers and across networks. |
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Term
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Definition
| A program that runs automatically without requiring a person to start or stop it. |
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Term
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Definition
| A virus disguises itself as a legitimate program to detect detection |
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Term
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Definition
| A virus changes its characteristics every time it is transferred to a new system |
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Term
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Definition
| Scanning detects malware by comparing a file content with known malware signatures in a signature database. |
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Term
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Definition
| Scanning techniques attempt to identify malware by discovering malware like behavior |
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Term
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Definition
| Deviation from a specific level of system for a given period of time. |
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Term
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Definition
| Power that is free from noise |
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Term
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Definition
| An __UPS uses the A/C power from the wall outlet to continuously charge its battery while providing power to a network device through its battery |
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Term
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Definition
| Mesh topologies and ___topologies are good choices for highly available enterprise networks |
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Term
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Definition
| Automatic distribution of traffic over multiple links or processors is used to optimize response. |
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Definition
| Fault tolerance technique that links multiple servers together to act as a single server. |
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Term
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Definition
| Web sites are locations on the internet that dynamically duplicate other locations on the internet to ensure their continual availability |
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Definition
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Definition
| Specialized storage device or group of storage devices that provides centralized fault tolerance data storage for a network |
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Term
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Definition
| Distinct networks of storage devices that communicate directly with each other and with other networks. |
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Term
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Definition
| Type of media capable of storing digitized data and that uses a laser to write data to it and read data from it. |
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Term
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Definition
| An archive__is a file attribute that can be checked or to indicate whether the file must be archived. |
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Term
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Definition
| Collection storage, and assessment of information related to the versions of software installed on every network device and every device's hardware configuration. |
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Term
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Definition
| A graphical representation of a network's wired infrastructure |
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Term
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Definition
| Management refers to monitoring how well links and devices are keeping up with the demands placed on them. |
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Term
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Definition
| Management refers to the detection and signaling of device , link, or component faults. |
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Term
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Definition
| The process where one network management console collects data from multiple networked devices at regular intervals |
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Term
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Definition
| A network management agent is a ___that collects information about a device's operation and provides it to the network management application |
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Term
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Definition
| Involves manipulating certain characteristics of packets , data streams, or connections to manage the type and amount of traffic traversing a network or interface at any moment. |
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Term
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Definition
| Local storage of frequently needed files that would otherwise be obtained from an external source. |
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Term
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Definition
| The most common type of caching |
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Term
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Definition
| A network device devoted to storage and delivery of frequently requested files. |
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Term
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Definition
| A key component in managing networks is identifying and tracking its hardware and software through___management |
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Term
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Definition
| Correction , improvement, or enhancement to a software application |
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Term
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Definition
| Major change to a software package existing code |
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Term
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Definition
| Typically overwrite some system files on the workstation so their installation may affect other applications adversely |
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Term
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Definition
| The most critical type of software upgrade you will perform |
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Term
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Definition
| The process of reverting to a previous version of software after attempting to upgrade |
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Term
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Definition
| keep in mind__when you upgrade or install on a network |
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Term
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Definition
| The most important comprehensive and complex upgrade involving network hardware |
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Term
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Definition
| Because backbone upgrades are expensive and time consuming the first step in approaching such a project |
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