Cisco Certified Support Technician Networking Vocabulary

Flashcards covering key vocabulary from the Cisco Certified Support Technician Networking lecture notes.

Bandwidth

The amount of data that can be transferred over a network connection in a given amount of time.

Throughput

The actual rate of successful data delivery over a network.

Latency

The delay before a transfer of data begins following an instruction for its transfer.

LAN

Local Area Network.

WAN

Wide Area Network.

MAN

Metropolitan Area Network.

CAN

Campus Area Network.

PAN

Personal Area Network.

WLAN

Wireless Local Area Network examples: Home Wi-Fi Network,Office Wi-Fi Network.Public Wi-Fi (e.g., coffee shops, airports, hotels),School or Campus Wi-Fi.

Cloud applications

Applications and services hosted on the internet.

On-premises applications

Applications and services hosted within an organization's own infrastructure.

SaaS

Software as a Service.

PaaS

Platform as a Service

IaaS

Infrastructure as a Service.

TCP

Connection-oriented protocol that ensures reliable data transmission.

UDP

Connectionless protocol that provides faster but less reliable data transmission.

FTP

File Transfer Protocol.

SFTP

Secure File Transfer Protocol.

TFTP

Trivial File Transfer Protocol.

HTTP

Hypertext Transfer Protocol.

HTTPS

Hypertext Transfer Protocol Secure.

DHCP

Dynamic Host Configuration Protocol.

DNS

Domain Name System.

ICMP

Internet Control Message Protocol.

NTP

Network Time Protocol.

Private Addresses

Addresses used within a private network.

Public Addresses

Addresses used for communication on the internet.

NAT

Network Address Translation.

IPv4 Address

A 32-bit numeric address written as four numbers separated by periods.

Subnet

A logical subdivision of an IP network.

Broadcast Domain

A range of IP addresses that are logically grouped together in a network.

IPv6 Address

A 128-bit alphanumeric address used for identifying devices on a network.

Cable Types

Fiber, copper, twisted pair

Connector Types

Coax, RJ-45, RJ-11, fiber connector types

Network Technologies

Wi-Fi, cellular, and wired network technologies

Endpoint Devices

Endpoint devices like IoT devices, computers, mobile devices, IP Phones, printers and servers.

Networking utilities

Used for troubleshooting on Windows, Linux, Android, and Apple operating systems

MAC address

A unique identifier assigned to network interfaces for communications at the data link layer of a network.

Basic Diagnostic Commands

ping, ipconfig/ifconfig/ip, tracert/traceroute, nslookup

Ways to access and collect data about network devices

Remote access (RDP, SSH, telnet), VPN, terminal emulators, Console, Network Management Systems, cloud-managed network (Meraki), scripts

Basic show commands on a Cisco network device

show run, show cdp neighbors, show ip interface brief, show ip route, show version, show inventory, show switch, show mac address-table, show interface, show interface x, show interface status

Firewalls

Operate to filter traffic using blocked ports and protocols; rules deny or permit access

Foundational security concepts

Confidentiality, integrity, and availability (CIA); authentication, authorization, and accounting (AAA); Multifactor Authentication (MFA); encryption, certificates, and password complexity; identity stores/databases (Active Directory); threats and vulnerabilities; spam, phishing, malware, and denial of service

Wireless security

Wireless security protocols, including WPA, WPA2, and WPA3; choosing between Personal and Enterprise; wireless security concepts

Fiber Optic Cables

Definition: Uses light to transmit data through thin glass or plastic fibers.

• Advantages: High bandwidth, long-distance transmission, immune to electromagnetic interference.

• Disadvantages: More expensive, harder to install, less flexible.

• Common Use Cases: Backbone cabling, connecting networks over long distances, high-speed data centers.

Copper Cables

Definition: Uses electrical signals to transmit data through copper wires.

• Coaxial Cable:

  • Description: Has a central copper conductor surrounded by insulation and a shield.

  • Advantages: Good resistance to interference, higher bandwidth than twisted pair.

  • Disadvantages: Less flexible, more expensive than twisted pair, limited bandwidth compared to fiber.

  • Common Use Cases: Cable TV, connecting older network devices.

Twisted Pair Cable