Test 3 - Network and Telecommunications, DSS 200|24 Q &A 2023
network - CORRECT ANSWER a collection of devices that communicate via a protocol
protocol - CORRECT ANSWER formal set of rules that must be followed;
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Test 3 - Network and Telecommunications, DSS 200|24 Q &A 2023
network - CORRECT ANSWER a collection of devices that communicate via a protocol
protocol - CORRECT ANSWER formal set of rules that must be followed; connects devices on a network
bandwidth - CORRECT ANSWER The maximum amount and speed of data; transmission capacity; network line speed; width of the pipe
throughput - CORRECT ANSWER actual data transfer rate; all bits - overhead - errors
Plain Old Telephone System (POTS) - CORRECT ANSWER voice only transmission media; category 1 speeds
twisted pair (TP) - CORRECT ANSWER ethernet transmission media; category 2 to category 6 speeds
coaxial - CORRECT ANSWER shielded twisted pair speeds of transmission media; cable TV; broadband
fiber optics - CORRECT ANSWER thin glass fibers that use total internal reflection to carry light; unlimited bandwidth
near field communications - CORRECT ANSWER short range radio frequency between two devices (it can read data only)
bluetooth - CORRECT ANSWER short range radio frequency for small devices; two way (Send and receive data)
Radio Frequency ID / short range radio frequency tags - CORRECT ANSWER inert transceivers, painted by antennas (EZ pass, walking into amazon)
WIFI - CORRECT ANSWER Standard = IEEE 802.11x; owned by wi-fi.org
virtual private networks (VPN) - CORRECT ANSWER a network using the Internet as a backbone but incorporating security for privacy
circuit switched - CORRECT ANSWER connection method for telephone networks (rerouting and switching circuits)
packed switched - CORRECT ANSWER connection method; disassemble message/data into packets, the packets then get reassembled at the end point and put back together
Two-Tier Client-Server Architecture - CORRECT ANSWER A client/ server architecture in which only a client and server are involved in the requests and responses that flow between them over the Internet; database server, client application software
Three-Tier Client-Server Architecture - CORRECT ANSWER apps & data are divided between three entities; client software, login, web, portals, database server access
service virtualization - CORRECT ANSWER -remotely hosted service; physical machine, remote location, across a network, dont know where the host is
cloud metal - CORRECT ANSWER pay someone to provide the service on the cloud
bare metal - CORRECT ANSWER you're responsible for storage, data, hardware, memory, and storing the data
packet switched digital - CORRECT ANSWER fastest data (4G, 5G)
Long Term Evolution (LTE) - CORRECT ANSWER 4G mobile telephony protocol
5G NR (New radio) - CORRECT ANSWER up to 20 gbps; shorter distance of waves, more antennas needed
Voice Over IP (VoIP) - CORRECT ANSWER Uses IP technology to transmit telephone calls; analog signal is digitized; decoded at the end (Zoom)
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