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NPower IT Fund. Section VI-X (Leap) – Qs And As
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NPower IT Fund. Section VI-X (Leap) – Qs And As
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NPower IT Fund. Section VI-X (Leap) – Qs And AsAre systems that are formed by links Right Ans - Network
A group of interconnected computers under one administrative control group
that governs the security and access control policies that are in force on the
network Right Ans - LAN (local area network)
Connections of multiple smaller networks such as LANs that are in
geographical separated locations. Right Ans - WAN (wide area network)
Which type of network spans a large geographical area, connecting multiple
LANs together, often across different cities or countries? Right Ans - WAN
(web area network)
Which type of network covers a small geographical area, typically confined
within a single building or campus? Right Ans - LAN (local area network)
Which type of network utilizes wireless tech to connect devices within a
limited geographical area, such as a home or office? Right Ans - WLAN
(wireless local area network)
Is a standard for wired computer network communications, defined by the
IEEE 802.3 specifications. Right Ans - Ethernet
Maximum distance to run Ethernet cables? Right Ans - 100 meters
IEEE Right Ans - Institute of electrical and electronics engineers
RJ-11 connects Right Ans - Telephones
RJ-45 connects Right Ans - Ethernet
Ethernet cables has 8 pairs of wires which are all twisted Right Ans - UTP
(unshielded twisted pair)
Ethernet cables also have 8 pairs of wires however the wires are covered with
a layer of aluminum to greatly reduce interference. Right Ans - STP (shield
twisted pair)
,Used to protect the wires from natural elements like moisture and corrosion.
Right Ans - F is for Foiled
Are copper-cored and surrounded by a heavy shielding used fro cable
television, connecting modems and surveillance cameras. Right Ans -
Coaxial cables
RG-59 are used within Right Ans - Cable TVs
Higher quality, more bandwidth and less interference. What type of cable is
this? Right Ans - RG-6
Uses a glass or plastic strand that transmits info using light. Right Ans -
Fiber-optic cables
This type of fiber cable transmits light (LED) Right Ans - Multi-mode fiber
and can travel 2km
This type of cable transmits via laser, resulting in further data transmission
distance Right Ans - Single-mode fiber. 60km
The four fiber connectors to memorize: Right Ans - LC, SC, FC and ST
Which type of network cable is commonly used for wired Ethernet
connections in home and office Right Ans - UTP
Which network cable type is known for its excellent resistance to EMI?
Right Ans - STP
What is the purpose of the shielding in STP cables? Right Ans - To reduce
the impact of external electromagnetic interference.
Which type of network cable is ideal for long-distance data transmission and
provides high data transfer speeds? Right Ans - Fiber optic cable
What is the primary advantage of using fiber optic cables for network
connections? Right Ans - Immunity to electromagnetic interference
, Wi-Fi can also be identified as Right Ans - IEEE 802.11.
What is the bandwidth and frequency of 802.11a Right Ans - Up to 54 Mbps
and 5GHz
What is the bandwidth and frequency of 802.11b Right Ans - Up to 11
Mbps and 2.4GHz
What is the bandwidth and frequency of 802.11g Right Ans - Up to 54 Mpbs
and 2.4GHz
What is the bandwidth and frequency of 802.11n Right Ans - Up to 600
Mpbs and 2.4 & 5 GHz
What is the bandwidth and frequency of 802.11ac Right Ans - Up to 1.3
Gbps and 2.4 & 5 GHz
Bluetooth max range Right Ans - 10 meters
Infared aka IR max range Right Ans - 15-20 feet ex. TV remote
Which wireless tech is commonly used for short-range communication
between devices, such as connecting a wireless keyboard and mouse? Right
Ans - Bluetooth
What is the main advantage of wi-if tech compared to Bluetooth for wireless
networking? Right Ans - Wi-if provides faster data transfer speeds
Which wireless tech is commonly used for remote control devices, like TV
remotes? Right Ans - Infared
How does Bluetooth tech differ from
wi-fi in terms of power consumption? Right Ans - Bluetooth consumes less
power than Wifi
Which wireless tech is commonly used for contactless payments and data
exchange between devices in close proximity? Right Ans - NFC
True of false? A devices IP address can change? Right Ans - True
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