Lucent connector (LC)

A smaller version of the fiber-optic SC connector, sometimes called a local connector.

A device that converts signals produced by one type of device to a form compatible with another device, often used to connect a home or small office to the Internet.

A tool that can take many types of measurements, including AC/DC voltage, electric current, and other electrical characteristics, to test the integrity of circuits and the quality of electricity in computer components.

multimode fiber (MMF)

Fiber-optic cable that consists of a larger core and that uses LED emitters to send light pulses.

near field communication (NFC)

A communication protocol that enables two electronic devices to establish communication when they are close to each other.

An unpowered or powered device commonly used to collect incoming cable runs from the various networking devices throughout a facility.

An interface used to track various types of hardware and software communications.

power over Ethernet (PoE)

A method for powering devices that do not have a battery or access to a power outlet.

A standard set of rules that defines how devices on a network communicate with one another.

A device that regenerates weak signals and extends the distance a signal can travel.

A network layer device that forwards data packets between networks. Routers use IP addresses to forward traffic to other networks.

shielded twisted-pair (STP)

A two-pair wiring medium used primarily with Token Ring networks. STP cabling has a layer of shielded insulation to reduce electromagnetic interference (EMI).

single-mode fiber (SMF)

Fiber-optic cable that consists of a very small core and uses laser technology to send a single ray of light in data transmission.

A device that microsegments a LAN and that connects multiple devices on a network by receiving data and using filtering and forwarding to send the data to the intended destination device.

Connecting a mobile device to another mobile device or computer to share a network connection.

unified threat management (UTM)

A generic name for an all-in-one security appliance. UTMs include all the functionality of an IDS/IPS as well as stateful firewall services.

A broadcast domain that is created on a single switch as if it were multiple switches and that groups a collection of devices from different LANs.

virtual private network (VPN)

A network used to securely connect to another network over an insecure network, such as the Internet.

Automatic Private IP Addressing (APIPA)

A form of addressing in which Windows automatically assigns an address to a computer that cannot communicate with a DHCP server to obtain an IPv4 address.

A list that specifies which IP addresses are denied on a network and that automatically approves everything else.

The router interface that a device uses to access the Internet or another network.

Dynamic Host Configuration Protocol (DHCP)

A protocol that automatically provides IP addresses to network hosts and provides a way to manage those addresses.

Hardware or software that protects computers and networks by preventing undesirable traffic from entering internal networks.

Internet of Things; a network of many smart devices that extends Internet connectivity beyond standard devices, like computers and smartphones, to include devices like refrigerators and TVs that are embedded with sensors and other technology to allow them to become part of the network.

An address used by a device to communicate with other computers connected to the same network within the same IP address range.

MAC address filtering

A security method that specifies exactly which device MAC addresses are allowed for or blocked from sending data on a network.

Media Access Control (MAC) address

A physical address that is hard coded onto a network interface card (NIC) by the manufacturer. The address stays with the device regardless of what network the device is connected to. A MAC address is 48 bits and represented in hexadecimal format.

Network Address Translation (NAT)

A process used to convert private IPv4 addresses to Internet-routable IPv4 addresses.

A command used to test connections between computers that works by sending an ICMP echo request and receiving an ICMP echo reply message to confirm connectivity.

A rule-based method of directing traffic between devices on separate networks.

A process in which a router temporarily forwards data through inbound ports to a specific device when a designated port range is used to make an outbound request.

service set identifier (SSID)

The name of a wireless network.

A number used to separate an IP address into network and host addresses. It masks the network part of the system's IP address and leaves the host portion to identify the device that is connected to the network.

A list that specifies which IP addresses are allowed on a network.

What is a wireless mesh network (WMN)?

A technology that uses multiple access points to extend a WLAN.

Module 5 - 6 Review Flashcards

Student preview

42 questions

Show all answers

1.

FLASHCARD QUESTION

Front

buffer

Back

A component of fiber-optic cable that helps shield the core and cladding from damage.

2.

FLASHCARD QUESTION

Front

fiber-optic cable

Back

A cable composed of two kinds of glass (core and cladding), surrounded by insulating material and a protective outer shield (jacket).

3.

FLASHCARD QUESTION

Front

Hub

Back

A device that extends the reach of a network by regenerating the electrical signal. It also receives data on one port and then sends it out to all other active ports. Hubs are legacy devices that do not segment network traffic and should not be used in today's networks.

4.

FLASHCARD QUESTION

Front

Integrated Services Digital Network (ISDN)

Back

A broadband standard that uses multiple channels to send voice, video, and data over normal telephone wires.

5.

FLASHCARD QUESTION

Front

intermediary devices

Back

Devices that exist in between host devices to ensure that data flows from one host device to another host device.

6.

FLASHCARD QUESTION

Front

intrusion detection system (IDS)

Back

A system that passively monitors traffic on a network.

7.

FLASHCARD QUESTION

Front

intrusion prevention system (IPS)

Back

A system that monitors incoming and outgoing traffic, looking for malware and network attack signatures. If it recognizes a threat, it can immediately stop it.

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