Search
Browse
Create
Log in
Sign up
Log in
Sign up
Upgrade to remove ads
Only $2.99/month
Network+
Pearson_IT
Get Quizlet's official Network+ - 1 term, 1 practice question, 1 full practice test
Preview
STUDY
Flashcards
Learn
Write
Spell
Test
PLAY
Match
Gravity
Terms in this set (34)
Client
Any device, such as a workstation, laptop, or tablet, that is used to access a network.
Server
Provides resources to network users, including email, web pages or files.
Hub
A Layer 1 device that does not perform any inspection of traffic. This device simply receives traffic in a port and repeats that traffic out all other ports.
Switch
A Layer 2 device that makes its forwarding decisions based on the destination MAC address.
Router
A Layer 3 device that makes forwarding devices based on Internet Protocol addressing.
Multilayer switch
Can operate at both Layer 2 and Layer 3. Also called a Layer 3 switch, this is a device that can switch traffic within the LAN and forward packets between subnets.
Media
This can be copper cabling, fiber-optic cabling, or radio waves. Media varies in its cost, bandwidth capacity, and distance limitation.
Analog modem
Short for modulator/demodulator. This device converts the digital signal generated by a computer into analog signals that can travel over phone lines.
Broadband modem
A digital modem that uses high-speed DSL or cable Internet service. Both operate in a similar manner to the analog modem, but use higher frequencies for transmission speeds.
Access Point
A network device with a built-in antenna, transmitter, and adapter that provides a connection between WLANs and a wired Ethernet LAN.
PBX
Private Branch Exchange is a privately owned telephone switch traditionally used in corporate environments.
SIP
Session Initiation Protocol is a VoIP signaling protocol used to set up, maintain and tear down VoIP phone calls.
RTP
Real-time Transport Protocol carries voice (and interactive video), but does not go through call agent - goes straight to gateway.
Call agent
Analyzes number dialed from VoIP phone to determine how to route the call to destination.
'A' record
Maps hostname to IPv4 address
'AAAA' record
Maps hostname to IPv6 address
CNAME
Canonical name record - is an alias of an existing record, thus allowing multiple DNS records to map to the same IP address
MX
Mail exchange record maps a domain name to an email server for that domain
PTR
Pointer record points to a canonical name. A PTR record is commonly used for performing reverse DNS lookup.
SOA
A start of authority record provides information about a DNS zone, such as email contact information for the zone's administrator, the zone's primary name server and various refresh timers
ISDN
Integrated Service Digital Network is a circuit-switched network. Classified as either Basic Rate Interface (BRI) of two 64kbps channels, or Primary Rate Interface (PRI) of 23 64kpbs [equivalent to a T1 circuit].
Dial-up
Analog connection over PSTN limited to 53.3 Kbps down / 48.0 Kbps up
PPP
Point to Point Protocol - Layer 2 protocol used on dedicated leased lines. It can carry layer 3 protocols (IPv4 and IPv6).
PAP
Password Authentication Protocol - one way authentication with passwords sent in clear text.
CHAP
Challenge Handshake Authentication Protocol - One-way authentication using 3-way handshake (challenge, response, acceptance). Passwords not sent across the link.
MS-CHAP
Microsoft enhanced version of CHAP. Includes 2-way authentication.
SONET
Synchronous Optical Network - Fiber-optic WAN technology that delivers voice, video and data a speeds starting at 51.84 Mbps (OC-1).
DWDM
Dense wavelength-division multiplexing
CWDM
Course wavelength-division multiplexing
OC-1
Optical carrier 1 level = 51.84Mbps
OC-3
3 times an OC-1 connection = 155.52
Frame Relay
...
ATM
...
MPLS
...
YOU MIGHT ALSO LIKE...
Network+
92 terms
Network + Objective 1.1 Network Devices
68 terms
Cisco Networking
107 terms
Cisco Network Fundamentals Ch 1-3
59 terms
OTHER SETS BY THIS CREATOR
AP Human Geography - Key Geographic Mode…
14 terms
World history - Chapter 32 Conflicts Divide Nations
26 terms
Chapter 12 - services and settlements
44 terms
US States and Capitals
50 terms