Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Network Plus > CompTIA Terms > Flashcards

CompTIA Terms Flashcards

1
Q

6in4

A

IPv6 tunneling standards; one of two IPv6 tunneling protocols that can go through NAT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

6to4

A

dominant IPv6 tunneling protocol; only IPv6 tunnel that doesnt require a tunnel broker; generally used to directly connect two routers because it normally requires a public IPv4 address

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

10BaseFL

A

fiber-optic implementation of Ethernet that runs 10 mbps using baseband signaling. 2km max length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

10BaseT

A

Ethernet LAN designed to run on UTP cabling. runs at 10 mbps and uses baseband signaling; 100 m max length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

10GBaseER/10GBaseEW

A

10 GbE standard using 1550-nm single-mode fiber. 40 km max cable length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

10GBaseLR/10GBaseLW

A

10 GbE standard using 1310-nm single-mode fiber. 10 km

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

10GBaseSR/10GBaseSW

A

10 GbE standard using 850-nm multimode fiber. 300 m.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

10GBaseT

A

10 GbE standard; runs at CAT 6a UTP cabling. 100 m cable length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

10 Gigabet Ethernet (10GbE)

A

currently (2012) the fastest Ethernet designation availabla, with a number of fiber-optic and copper standards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

100BaseFX

A

Ethernet LAN; fiber-optic cabling. 100 mbps using baseband signaling. 400 m max for half-duplex and 2 km for full-duplex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

100BaseT

A

Ethernet LAN; UTP cabling; 100 Mbps using baseband signaling and uses two pairs of wires on CAT 5 or better cabling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

100BaseT4

A

Ethernet LAN; UTP cabling; 100 Mbps and uses four-pair CAT 3 or better cabling. made obsolete by 100BaseT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

100BaseTX

A

same as 100BaseT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

110-Punchdown Block

A

most common connection used on the back of an RJ-45 jack and patch panels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

110-Punchdown Tool

A

used to connect UTP wires to 110-block

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

802 committee

A

IEEE committee responsible for all Ethernet standards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

802.IX

A

port-authentication network access control mechanish for networks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

802.3 (Ethernet)

A

coined by Xerox for the first standard of network cabling and protocols. Ethernet is based on a bus topology. The IEEE 802.3 subcommittee defines the current Ethernet specifications

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

802.3ab

A

IEEE standard for 1000BaseT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

802.3z

A

umbrella IEEE standard for all versions of Gigabit Ethernet other than 1000BaseT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

802.11

A

standards for wireless

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

802.11a

A

5 GHz; 54 Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

802.11b

A

2.4 GHz; 11 Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

802.11g

A

2.4 GHz; 54 Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

802.11i

A

wireless standard w/ added security features

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

802.11n

A

increases transfer speeds and adds support for MIMO (multiple in/multiple out) by using multiple antennas. operate at 2.4 or 5 GHz; 400 Mbps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

802.16

A

wireless standard (aka WiMax) with a range of up to 30 miles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

1000BaseCX

A

Gigabit Ethernet; copper cabling; 25-m max cable distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

1000BaseSX

A

Gigabit Ethernet; multi-mode fiber cabling; 220-500 m max cable distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

1000BaseLX

A

Gigabit Ethernet; single-mode fiber cabling; 5 km

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

1000BaseT

A

Gigabit Ethernet; CAT 5e/6 UTP cabling; 100 m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

1000BaseX

A

umbrella Gigabit Ethernet standard. Also known as 802.3z

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

A record

A

list of IP addresses and names of all the systems on a DNS server; maps host name to IP address

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Acceptable Use Policy

A

document that defines what a person may and may not do on an organizations computers and networks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

ACL

A

Access Control List; list of permissions that specifies what actions an authenticated user may perform on a shared resource.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Active Directory

A

directory service used in networks with Windows servers. organization of related computers that share one or more Windows domains.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Activity Light

A

an LED on a NIC, hub, or switch that blinks rapidly to show data transfers over the network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Ad Hoc Mode

A

wireless networking mode where each mode is in direct contact with every other node in a decentralized free-for-all. Ad hoc mode is similar to mesh topology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

ARP

A

address resolution protocol; TCP/IP based thats used with the command-line utility of the same name to determine the MAC address that corresponds to a particular IP address

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

ADSL

A

asymmetric digital subscriber line;

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

AES

A

Advanced Encryption Standard; block cipher created in the late 1990s that uses a 128-bit block size and a 128-, 192-, or 256-bit key size. Practically uncrackable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Adware

A

program that monitors the types of web sites you frequent and uses that information to generate targeted advertisements, usually pop-up windows

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Aggregation

A

router hierarchy in which every router underneath a higher router always uses a subnet of that router’s existing routes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Algorithm

A

set of rules for solving a problem in a given number of steps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Anycast

A

method of addressing groups of computers as though they were a single computer. anycasting starts by giving a number of computers the same IP address. Advanced routers then send incoming packets to the closest of the computers.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Apache HTTP server

A

open-source HTTP server program that runs on a wide variety of operating systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Application Log

A

tracks application events

48
Q

Archive Bit

A

attribute of a file that shows whether the file has been backed up since the last change. each time a file is opened, changed, or saved, the archive bit is turned on. some types of backups turn off this archive bit to indicate that a good backup of the file exist on tape.

49
Q

Area ID

A

address assigned to routers in an OSPF network to prevent flooding beyond the routers in that particular network. See OSPF

50
Q

arping

A

command used to discover hosts on a network, similar to ping, but that relies on ARP rather than ICMP. Arping command wont cross any routers, so it will only work within a broadcast domain. See ARP and ping.

51
Q

ADSL

A

asymmetric digital subscriber line; fully digital, dedicated connection to the telephone system that provides download speeds of up to 9 Mbps and upload speeds of up to 1 Mbps

52
Q

Asymmetric-Key Algorithm

A

encryption method in which the key used to encrypt a message and they key used to decrypt it are different, or asymmetrical

53
Q

ATM

A

asynchronous transfer mode; network technology that runs at speeds between 25 and 622 Mbps using fiber-optic cabling or CAT 5 or better UTP

54
Q

Attenuation

A

degradation of a signal as it progresses down the network cable

55
Q

Authentication

A

proves good data traffic truly came from where it says it originated by verifying the sending and receiving users and computers

56
Q

AAA

A

Authentication, Authorization, and Accounting; security philosophy wherein a computer trying to connect to a network must first present some form of credential in order to be authenticated and then must have limitable permissions within the network. The authenticating server should also record session information about the client

57
Q

AS (authentication server)

A

authentication server; In kerberos, a system that hands out Ticket-Granting tickets to clients after comparing the client has its own.

58
Q

Authoritative DNS Servers

A

DNS servers that hold the IP addresses and names of systems for a particular domain or domains in special storage areas called ‘forward lookup zones’.

59
Q

Authorization

A

step in AAA philosophy during which a client’s permissions are decided upon

60
Q

APIPA

A

automatic private IP addressing; enabled DHCP clients to self-configure an IP address and subnet mask automatically when DHCP server isnt available

61
Q

AS (autonomouse system)

A

one or more networks that are governed by a single protocol within that AS, which provides routing for the internet backbone

62
Q

BDR

A

backup designated router

63
Q

Bandwidth

A

max amount of data transferred through a cable per second

64
Q

Baseband

A

digital signaling that has only one signal on the cable at a time. signal is one of three states; one, zero, or idle

65
Q

Baseline

A

static image of a systems (or network’s) performance when all elements are known to be working properly

66
Q

Basic NAT

A

translates a computers private or internal IP address to a global IP address on a one-to-one basis

67
Q

BRI

A

basic rate interface; basic ISDN configuration, which consists of two B channels (which can carry voice or data at a rate of 64 Kbps) and one D channel (carries setup and configuration info, as well as data at 16 Kbps)

68
Q

BSS

A

basic service set; wireless networking, single access point servicing a given area

69
Q

BSSID

A

basic service set identifier (BSSID); name scheme in wireless networks

70
Q

Baud

A

one analog cycle on a telephone line

71
Q

Baud Rate

A

number of bauds per second

72
Q

B Channel

A

Bearer channel - type of ISDN channel that carries data and voice info using standard DS0 channels at 64 kbps

73
Q

BERT

A

Bit error rate test (BERT) end-to-end test that verifies a T-carrier connection

74
Q

Block cipher

A

encryption algorithm which data is encrypted in ‘chunks’ of a certain length at a time. popular in wired networks

75
Q

BNC Connector

A

connected used for 10Base2 coaxial cable. All BNC connectors have to be locked into place by turning the locking ring 90 degrees

76
Q

Bonding

A

two or more NIC’s in a system working together to act as a single NIC to increase performance

77
Q

BOOTP

A

bootstrap protocol; component of TCP/IP that allows computers to discover and receive an IP address from DHCP server prior to booting the OS. Other items that may be discovered during the BOOTP process are the IP address of the default gateway for the subnet and the IP addresses of any name servers

78
Q

BGP-4

A

border gateway protocol; exterior gateway routing protocol that enables groups of routers to share routing information so that efficient, loop-free routes can be established

79
Q

Botnet

A

group of computers under the control of one operator, used for malicious purposes

80
Q

Bps

A

bits per second; measurement of how fast data is moved across a transmission medium. Gigabit Ethernet connection moves 1,000,000,000 bps.

81
Q

Bridge

A

device that connects two networks and passes traffic between them based on node address

82
Q

Bridge Loop

A

negative situation in which bridging devices (usually switches) are installed in a loop configuration, causing frames to loop continuously. Switches using STP prevent bridge loops by automatically turning off looping ports.

83
Q

formula to determine number of host

A

2 to the power of x minus 2; x = number of 0’s in subnet mask

84
Q

formula to determine number of subnets

A

2 to the power of y; y = number of bits added to subnet mask

85
Q

Bridged Connection

A

early type of DSL connection that made the DSL line function the same as if you snapped an Ethernet cable into your NIC

86
Q

Broadband

A

analog signaling that sends multiple signals over the cable at the same time. (ex: cable televesion)

87
Q

Broadcast

A

frame or packet addressed to all machines, almost always limited to a broadcast domain

88
Q

Broadcast address

A

the address a NIC attaches to a frame when it wants every other NIC on the network to read it. In TCP/IP, general broadcast address is 255.255.255.255. In Ethernet, the broadcast MAC address is FF-FF-FF-FF-FF-FF.

89
Q

Broadcast domain

A

network of computers that will hear each others broadcasts. The older term collision domain is the same, but rarely used today.

90
Q

Broadcast Storm

A

one or more devices sending a nonstop flurry of broadcast frames on the network

91
Q

Bus topology

A

network topology that uses a single bus cable that connects all of the computers in line. must be terminated to prevent signal reflection.

92
Q

Butt Set

A

device that can tap into a 66- or 110-punchdown block to see if a particular line is working

93
Q

CAB Files

A

cabinet files - files are compressed and most commonly used during Microsoft operating system installation to store many smaller files, such as device drivers

94
Q

Cable Modem

A

a bridge device that internconnects the cable company’s DOCSIS service to the user’s Ethernet network. in most locations, the cable modem is the demarc.

95
Q

Cable stripper

A

device that enables the creation of UTP cables

96
Q

Cable tester

A

generic name for a device that tests cables. some common test for continuity, electrical shorts, crossed wires or other electrical characteristics.

97
Q

Cable Tray

A

organizes cable runs in a drop ceiling

98
Q

Cache-Only DNS servers

A

DNS servers taht do not have any forward lookup zones. Resolve names of systems on the internet for the network, but are not responsible for telling other DNS servers the names of any clients.

99
Q

cache lookup

A

list kept by DNS server of IP addresses is has already resolved so it wont have to re-resolve a FQDN it has already checked

100
Q

CNAME

A

canonical name - less common type of DNS record that acts as a computer’s alias

101
Q

CSMA/ CA

A

carrier sense multiple access with collision avoidance

102
Q

CSMA/ CD

A

carrier sense multiple access with collision detection

103
Q

CAT 3

A

UTP wiring; up to 16 Mbps

104
Q

CAT 5

A

UTP wiring; up to 100 Mbps

105
Q

CAT 5e

A

UTP wiring; improved support for 100 Mbps using two pairs and support for 1000 Mbps using four pairs

106
Q

CAT 6

A

UTP wiring; support for 1000 Mbps

107
Q

Category (CAT) rating

A

rated in megahertz (MHz), indicating the highest frequency bandwidth the cable can handle

108
Q

Certificate

A

public encryption key signed with the digital signature from a trusted third party called a CA, certificate authority. key serves to validate the identity of its holder when that person or company sends data to other parties

109
Q

CHAP

A

challenge handshake authentication protocol; remote access authentication protocol. serving system challenge the remote client, which much provide an encrypted password

110
Q

Channel

A

portion of wireless spectrum on which a particular wireless network operates; setting wireless networks to different channels enables separation of the networks

111
Q

Channel Bonding

A

wireless technology that enables WAPs to use two channels for transmission

112
Q

CSU/DSU

A

channel service unit/ digital service unit;

113
Q

checksum

A

simple error-detection method that adds a numerical value to each data packet, based on the number of data bits in the packet. receiving node applies the same formula to the data and verifies it. if numerical value is not the same, data has been corrupted and must be re-sent

114
Q

circuit switching

A

process for connecting two phones together on one circuit

115
Q

Cladding

A

part of a fiber-optic cable that makes the light reflect down the fiber

116
Q

CIDR

A

Classless Inter-Domain Routing; method of categorizing IP addresses in order to distribute them. in correlation to subnetting.

Network Plus (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions