View Full Huawei H12-831 Exam Dumps and Practice Test Dumps   Question 1. In an OSPF network, what is the primary function of the designated router (DR) on a broadcast network? Reduce the number of OSPF adjacencies and LSA exchanges Assign IP addresses to OSPF routers Select the default gateway for all hosts Redistribute BGP […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q381. What is the primary purpose of the Duration field in many 802.11 frames? To identify the client’s IP subnet To help other stations determine how long the wireless medium is expected to remain reserved To specify the AP’s PoE requirement To configure RADIUS authentication […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q361. What is the primary purpose of a TXOP in an 802.11 QoS environment? To assign a VLAN to a wireless user To determine the AP regulatory domain To provide an IP address to a client To allow a station to transmit for a defined […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q341. What is the primary purpose of the PLCP preamble in an 802.11 transmission? To assign an IP address to the receiving client To help the receiver detect and synchronize with the incoming PHY transmission To identify the client’s VLAN To select the RADIUS authentication […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q321. In 802.11 terminology, what does an Extended Service Set (ESS) provide? A single client connected directly to another client One AP operating without a distribution system A dedicated RF channel for every wireless station Multiple Basic Service Sets connected to provide a larger WLAN […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q301. What happens to the wavelength of an RF signal when its frequency increases? The wavelength increases proportionally The wavelength remains unchanged The wavelength decreases The signal becomes a wired transmission Correct Answer: 3. The wavelength decreases Explanation: Frequency and wavelength have an inverse relationship […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q281. What is the purpose of the Distributed Coordination Function (DCF) in an 802.11 WLAN? To assign IP addresses to wireless clients To coordinate shared-medium access using carrier sensing, interframe timing, and random backoff To establish Mist subscriptions To determine Bluetooth asset locations Correct Answer: […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q261. What is the primary purpose of Clear Channel Assessment (CCA) in an 802.11 WLAN? To assign a WLAN encryption key To determine the client’s default gateway To determine whether the RF medium appears busy before transmitting To allocate PoE power to an access point […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q241. What is the primary effect of antenna gain in a wireless system? It increases the amount of electrical power supplied through PoE It changes the WLAN’s authentication method It concentrates RF energy in particular directions compared with an isotropic radiator It assigns a different […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q221. In the 2.4 GHz band, why are channels 1, 6, and 11 commonly used in deployments based on 20 MHz channels in many regulatory domains? They provide the highest possible transmit power Their channel spacing avoids significant overlap with one another They are the […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q201. In RF terminology, what happens to received signal power as the distance between a transmitter and receiver increases in free space? It increases because the wave spreads It remains constant It becomes independent of frequency It generally decreases because of free-space path loss Correct […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q181. What is the primary purpose of Wi-Fi Multimedia (WMM) in an 802.11 WLAN? To assign IP addresses to wireless clients To determine AP mounting locations To prioritize different traffic categories over the wireless medium To replace WPA authentication Correct Answer: 3. To prioritize different […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q161. In a Wi-Fi environment, what is multipath propagation? A client receiving only one copy of a radio signal A transmitted RF signal reaching the receiver over multiple paths because of reflections and other propagation effects An AP using two IP default gateways A client […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q141. What is the primary purpose of the NAV field in an 802.11 station? To store the client’s IP address To maintain a virtual carrier-sense timer indicating how long the wireless medium is expected to remain busy To determine the WLAN’s encryption key To select […]

View Full Juniper JN0-452 Exam Dumps and Practice Test Dumps. Q121. What is the primary purpose of an ACK frame in normal 802.11 unicast communication? To advertise an SSID To assign an IP address To provide AP power information To confirm successful receipt of a transmitted frame Correct Answer: 4. To confirm successful receipt of […]