N10-009 - Network Operations

Asset inventory

A comprehensive list of all the assets belonging to or used by an organization, tangible and intangible

IPAM

IP address management

SLA

Service-level agreement

Wireless survey/heat map

Visualization for analyzing and mapping Wi-Fi signal coverage and strength in an area

OS

Operating system

EOL

End-of-life

EOS

End-of-support

MIB

Management information base

SIEM

Security information and event management

SNMP

Simple Network Management Protocol

High availability

Continued operational performance with minimal downtime

Active-active

Multiple active components share the workload and can handle failures by redistributing traffic

Active-passive

Relying on a primary, active component backed up by a secondary, standby component

Tabletop exercise

Discussion-based activity where participants simulate a disaster or emergency to test and improve plans, policies, and procedures

Validation test

“Does this product do what the user needs it to do?”

DR

Disaster recovery

RPO

Recovery point objective

RTO

Recovery time objective

MTTR

Mean time to repair

MTBF

Mean time between failures

BCP

Business Continuity Plan

Cold site

Power, networking capability, and cooling; no servers or storage

Warm site

Cold site plus storage hardware; still requires data transportation

Hot site

Fully functional backup site with important data mirrored to it

Dynamic addressing

Automatic assignment of IP addresses to devices on a network typically using DHCP

Name resolution

Conversion of human-readable domain names into the corresponding IP addresses using DNS

SLAAC

Stateless address autoconfiguration

DNSSEC

Domain Name Security Extensions

NTS

Network Time Security

PTP

Precision Time Protocol

DoH

DNS over HTTPS

DoT

DNS over TLS

Hosts file

Map hostnames to IP addresses using records such as A, AAAA, CNAME, etc.

A

IPv4 address

AAAA

IPv6 address

CNAME

Canonical name

MX

Mail exchange

TXT

Text

NS

Nameserver

PTR

Pointer

Clientless

Remote users can securely access enterprise resources without traditional client software

Split tunnel

Partial encryption of traffic

Full tunnel

Encryption of all traffic

Jump box/host

Secure intermediary server for accessing and managing devices in a separate network

In-band management

Same network infrastructure for data traffic and management

Out-of-band management

Using a separate, dedicated network for management

GUI

Graphical user interface