Flashcards in 800 Deck (100)
Layer 1 of the OSI Model
Layer 2 of the OSI Model
Layer 3 of the OSI Model
Layer 4 of the OSI Model
Layer 5 of the OSI Model
Layer 6 of the OSI Model
Layer 7 of the OSI Model
A network database that contains a listing of all network resources - such as users - printers - groups - and so on.
A network service that provides access to a central database of information - which contains detailed information about the resources available on a network.
A method of communication between wireless receivers.
A communications technology that is used to communicate in the 802.11 standard. It accomplishes communication by adding the data that is to be transmitted to a higher-speed transmission
direct-sequence spread spectrum (DSSS)
The act of recovering data following a disaster that has destroyed the data.
The procedure by which data is recovered after a disaster.
disaster recovery plan
A means of restricting access to objects based on the identity of subjects and/or groups to which they belong.
Discretionary Access Control (DAC)
Technology that keeps identical copies of data on two disks to prevent the loss of data if one disk faults.
Technology that enables writing data to multiple disks simultaneously in small portions called stripes.
A fault-tolerance solution of writing data across a number of disks and recording the parity on another. In the event any one disk fails - the data on it can be recreated by looking at the remaining data and computing parity to figure out the missing data.
disk striping with parity
A derivative of a DoS attack in which multiple hosts in multiple locations all focus on one target.
Distributed Denial of Service (DDoS) attack
Any server that performs host name-to-IP address resolution.
An area in the DNS hierarchy that is managed as a single unit.
Within the Internet - this is a group of computers with shared traits and a common IP address set.
The network service used in TCP/IP networks that translates host names to IP addresses.
Domain Name Service (DNS)
A host that resides on more than one network and posses more than one physical network card.
A keyboard and monitor that send keystrokes to a central processing computer (typically a mainframe or minicomputer) that returns screen displays to the monitor. The unit has no processing power of its own.
Looking through trash for clues--often in the form of paper scraps--to users' passwords and other pertinent information.
Two hard drives to which identical information is written simultaneously. A dedicated controller card controls each drive. Used for fault tolerance.
duplexed hard drives
Two servers that are identical - for use in clustering.
A protocol used on a TCP/IP network to send client configuration data - including TCP/IP address - default gateway - subnet mask - and DNS configuration - to clients.
Dynamic Host Configuration Protocol (DHCP)
A type of firewall used to accept or reject packets based on their contents.
dynamic packet filtering