Computer Networking Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols? VPN xDSL HDLC IPSec Cable VPN xDSL HDLC IPSec Cable ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What frequency range is used for microwave communications, satellite and radar? None of these Medium Frequency : 300 kHz to 3 MHz Super High Frequency : 3000 MHz to 30000 MHz Extremely High Frequency :30,000 MHz Low Frequency : 30 kHz to 300 kHz None of these Medium Frequency : 300 kHz to 3 MHz Super High Frequency : 3000 MHz to 30000 MHz Extremely High Frequency :30,000 MHz Low Frequency : 30 kHz to 300 kHz ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What PPP protocol provides dynamic addressing, authentication, and multilink? LCP HDLC X.25 NCP LCP HDLC X.25 NCP ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A form of modulation In which the amplitude of a carrier wave is varied in accordance with some characteristic of the modulating signal, is known as None of these Aloha Amplitude modulation Angle modulation modem None of these Aloha Amplitude modulation Angle modulation modem ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer The network becomes more efficient The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device An additional token is added for every 1,000 nodes The network becomes less efficient The network becomes more efficient The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device An additional token is added for every 1,000 nodes The network becomes less efficient ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What is the maximum distance with maximum data rate for 802.11g? About 90-100 feet About 65-75 feet About 150 feet Over 200 feet About 90-100 feet About 65-75 feet About 150 feet Over 200 feet ANSWER DOWNLOAD EXAMIANS APP
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