(VERIFIED ANSWERS) 2025
What is the IEEE of Bluetooth? - CORRECT ANS>>802.15 WPAN.
What is WiMAX and it IEEE? - CORRECT ANS>>-Worldwide Interoperability for Microwave Access
-IEEE 802.16 WWAN.
In cellular broadband there are two types of cellular networks, what are they? - CORRECT
ANS>>Global System for Mobile (GSM) and Code Division Multiple Access (CDMA).
GSM is internationally recognized, while CDMA is primarily used in the US.
Typically, it is used by rural homeowners and businesses where cable and DSL are not available. It is
usually more expensive and requires a clear line of sight. - CORRECT ANS>>Satellite Broadband
What is the 802.11 WLAN? - CORRECT ANS>>WiFi/wireless devices are based on IEEE 802.11.
set of protocols and wireless local area network (WLAN) Wi-Fi computer communication in various
frequencies
-Radio frequency is 2.4 GHz
What is the 802.11a? - CORRECT ANS>>5 Ghz frequency band IEEE standard for transmitting data
over a wireless network.
What are the two allocated radio frequency in 802.11 wireless LANs? -
- CORRECT ANS>>2.4GHz and 5GHz.
Which 802.11 standards exclusively use the 5 GHz radio frequency? - CORRECT ANS>>802.11a
802.11ac
Which of the wireless networks typically uses lower powered transmitters for short ranges? -
CORRECT ANS>>WPAN.
In wireless, what does AP stand for? - CORRECT ANS>>Access Point
,What does SSID stand for? - CORRECT ANS>>shared service set identifier (SSID)
The wireless router advertises its wireless services by sending containing its shared
service set identifier (SSID) - CORRECT ANS>>Beacons.
What does QoS stand for and what does it do? - CORRECT ANS>>Quality of Service.
is a feature of routers and switches which prioritizes traffic so that more important traffic can pass
first.
What does WAP stand for and what is it exactly? - CORRECT ANS>> Wireless Access Point more
generally just an access point, is a networking hardware device that allows other Wi-Fi devices to
connect to a wired network.
What does Wi-Fi stand for? - CORRECT ANS>>Wireless Fidelity technically, this is not the case. Wi-Fi
is simply a trademarked term meaning IEEE 802.11x.
What is an Autonomous AP? - CORRECT ANS>>-Standalone devices like a home router. Where the
entire WLAN configuration resides on the device.
-Sometimes called thick APs
-do not require a controller to control the AP and it use WLSE for management software
-use for a network that requires only a couple of access points.
What does WLC stand for? - CORRECT ANS>>Wireless LAN Controller
What does AS stand for? - CORRECT ANS>>Autonomous System
What are Controller-based APs? - CORRECT ANS>>-These devices require no initial configuration
and are often called lightweight APs (LAPs).
-Also called thin APs
-Centralized management, configuration, encryption, updates and policy settings through a
centralized controller
,LAPs - CORRECT ANS>>Lightweight Access Points
LWAPP - CORRECT ANS>>Light Weight Access Point Protocol
What is another name for LAPs? - CORRECT ANS>>Controller-based APs
LAG - CORRECT ANS>>Link Aggregation Group
What is MIMO? - CORRECT ANS>>Multiple Input Multiple Output. Uses multiple antennas to
increase available bandwidth for IEEE
802.11n/ac/ax wireless networks. Up to eight transmit and receive antennas can be used to
increase throughput.
Which of the following components are integrated in a wireless home router?
-Access Point
-Switch
-Router
-Range Extender - CORRECT ANS>>Access Point, Switch, Router
What is infrastructure mode in WLAN? - CORRECT ANS>>A wireless router or AP connects wireless
clients to a wired distribution system.
What is API and what does the acronym stand for as well? - CORRECT ANS>>
Application Programming Interface (API)
An API is software that allows other applications to access its data or services. It is a set of rules
describing how one application can interact with another, and the instructions to allow the
interaction to occur.
Data formats shared between smart devices often use an Application Programming Interface (API
There are four types of web service APIs - CORRECT ANS>>Simple Object Access Protocol (SOAP)
Representational State Transfer (REST) extensible Markup Language-Remote Procedure Call (XML-
RPC) JavaScript Object Notation-Remote Procedure Call (JSON-RPC)
, Software-Defined Networking (SDN) is what? - CORRECT ANS>>The physical separation of the
network control plane from the forwarding plane, and where a control plane controls several
devices. dynamic, manageable, cost-effective, and adaptable
What is FTP and it port number? - CORRECT ANS>>File Transfer Protocol Port 20, 21
Provides reliability when loading an IOS image upon boot up
What is SSH and it port number? - CORRECT ANS>>Secure Shell Protocol port 22
What is telnet port number? - CORRECT ANS>>23
SMTP (Simple Mail Transfer Protocol) and port number - CORRECT ANS>>
port 25
DNS (Domain Name System) port number - CORRECT ANS>>53
HTTP (Hypertext Transfer Protocol) port number - CORRECT ANS>>80
SNMP (Simple Network Management Protocol) port number - CORRECT ANS>>161
What protocols are reliable, connection oriented and use TCP? - CORRECT ANS>>FTP, SSH, Telnet,
SMTP, DNS, HTTP, POP3, NTP, IMAP4, HTTPS
What protocols are unreliable, connectionless and use UDP? - CORRECT ANS>>DNS, DHCP, TFTP,
SNMP
What is DHCP? - CORRECT ANS>>A protocol used to automate the assignment of IP Address. It
stands for Dynamic Host Control Protocol and is the successor to BOOTP.
DHCP port number - CORRECT ANS>>67