WGU C172 Objective Assessment Study Guide (Latest 2023/ 2024 Update) Network and Security Foundations| Questions and Verified Answers| 100% Correct
WGU C172 Objective Assessment Study
Guide (Latest 2023/ 2024 Update) Network
and Security Foundations| Questions and
Verified Answers| 100% Correct
Q: This standard can provide data transfer rates up to 54Mbps and an operating range up to 75
feet. It operates at 5GHz and uses OFDM
Answer:
802.11a (Wireless-A)
Q: This standard can provide data transfer rates up to 11Mbps with ranges of 100-150 feet. it
operates at 2.4GHz and uses DSSS
Answer:
802.11b (Wireless-B)
Q: This standard can provide data transfer rates up to 54Mbps and an operating range up to 150
feet. It operates at 2.4 GHz and uses DSSS or OFDM
Answer:
802.11g (Wireless-G)
Q: This high-speed wireless connectivity promises data transfer rates over 200Mbps. It operates
up to 1 Gbps and operates over the 5Ghz band
Answer:
802.11ac
Q: Identify the topology:
LANs or WANs, coacial cable or RJ-45 (ethernet)
Answer:
Ring
Q: Identify the topology:
Coaxial cable, thinnet
Answer:
Bus
Q: Identify the topology:
hub or switch in center: ethernet, coaxial, or fiber optic
Answer:
Star
Q: Identify the topology:
Connects every node to every other node in the network
Answer:
Mesh
Q: Identify the topology:
Configured by integrating multiple star topologies on a bus topology and using a central “root”
node
Answer:
Tree/hierarchal topology
Q: In which network can you wire multiple PCs to a home router
Answer:
LAN
Q: A infrastructure connects network devices and printers through a central access
point without the use of cabling
Answer:
WLAN
Q: The is commonly used within a 1000Mbps Ethernet network
Answer:
Cat 5e
Q: PAN
Answer:
Personal Area network
Q: LAN
Answer:
local area network
Q: WLAN
Answer:
Wireless LAN
Q: CAN
Answer:
Campus Area Network
Q: MAN
Answer:
Metropolitan area network
Q: WAN
Answer:
wide area network
Q: SAN
Answer:
Storage area network
Q: VLAN
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UTP description
pairs of wires are twisted around each other to protect and cancel out interference from each other and outside sources
UTP common uses
analog phone cables and in copper Ethernet cables
UTP Connectors
RJ11: A connector that supports two pairs of wires (four total); typically used in telephones.
RJ45: This is an end connector typically used with Ethernet cables and supports four pairs (eight wires);
Coaxial Description
analog cables made of copper but specifically engineered with a metal shield intended to block signal interference
Coaxial Common Uses
mostly used by cable TV companies to connect their customers to the company’s facilities
Coaxial Connectors
bnc, f-type
Fiber Description
use glass or plastic threads within cables to transfer the data using light (lasers or LEDs)
Fiber Connectors
ST: This stands for a straight tip connector
LC: This stands for lucent connector. This is a smaller version of the standard connector (SC). Usually used with SFP (small form-factor pluggable) transceivers
Cat3
used in the early 90’s for phones, 16mbps
Cat5
2tp, 100/100m
Cat5e
4tp 1000Base-T, 1G/100m
Cat6
4 tighter tps 250mhz, 1G/100m or 10G/55m
Cat6a
500mhz, 10G/100m
Cat7
600mhz, 10gbps
Cat7a
1000mhz, 10gbps
802.11a
This standard can provide data transfer rates up to 54Mbps and an operating range up to 75 feet. It operates at 5GHz and uses OFDM.
802.11b
This standard can provide data transfer rates up to 11Mbps with ranges of 100-150 feet. It operates at 2.4GHz and uses DSSS.
802.11g
This standard can provide data transfer rates up to 54Mbps and an operating range up to 150 feet. It operates at 2.4GHz and uses DSSS or OFDM.
802.11n
This high-speed wireless connectivity promises data transfer rates over 200Mbps. It operates at 2.4GHz and 5GHz and uses DSSS or OFDM.
802.11ac
This is the next generation of high-speed wireless connectivity. This technology promises data rates up to 1Gbps and operates over the 5GHz band.
802.11i
This standard for WLAN’s provides improved data encryption for networks that use the 802.11a, 802.11b, and 802.11g standards.
802.11r
This standard is designed to speed hand-offs between access points or cells in a WLAN. This standard is a critical addition to 802.11 WLAN’s if voice traffic is to become widely deployed.
802.3
defines LAN access method using CSMA/CD
CSMA/CD
Short for carrier sense multiple access with collision detection. It is the method for multiple hosts to communicate on a Ethernet.
CSMA/CA
Short for carrier sense multiple access with collision avoidance. It is used as a method for multiple hosts to communicate on a wireless network and AppleTalk.
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