Computer Networking What is the frequency range of the IEEE 802.11a standard? 2.4GHz 5Gbps 5GHz 2.4Gbps 2.4GHz 5Gbps 5GHz 2.4Gbps ANSWER DOWNLOAD EXAMIANS APP
Computer Networking How much power (roughly) a light-emitting diode can couple into an optical fiber? 100 picowatts 440 microwatts 10 milliwatts None of these 100 microwatts 100 picowatts 440 microwatts 10 milliwatts None of these 100 microwatts ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following device is used with an X.25 network to provide service to asynchronous terminals gateway repeater bridges None of these Packet assembler/disassemble gateway repeater bridges None of these Packet assembler/disassemble ANSWER DOWNLOAD EXAMIANS APP
Computer Networking How does a host on an Ethernet LAN know when to transmit after a collision has occurred?1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.3. You can improve the CSMA/CD network by adding more hubs.4. After a collision, the station that detected the collision has first priority to resend the lost data.5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data. 1,3 and 4 1 and 3 2 and 4 2 and 5 1,3 and 4 1 and 3 2 and 4 2 and 5 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select? Ethernet Star Token-Ring Right Bus Ethernet Star Token-Ring Right Bus ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What frequency range is used for microwave communications, satellite and radar? Extremely High Frequency :30,000 MHz Medium Frequency : 300 kHz to 3 MHz Super High Frequency : 3000 MHz to 30000 MHz Low Frequency : 30 kHz to 300 kHz None of these Extremely High Frequency :30,000 MHz Medium Frequency : 300 kHz to 3 MHz Super High Frequency : 3000 MHz to 30000 MHz Low Frequency : 30 kHz to 300 kHz None of these ANSWER DOWNLOAD EXAMIANS APP