Online Access Free GB0-342-ENU Exam Questions

Good grounding is also an important means to ensure the normal operation of communication equipment.

• A.To ensure the stable operation of the electronic components of the communication equipment
• B.Reduce the noise interference of communication equipment and ensure good communication effect
• C.Make the communication equipment obtain a good shielding effect and avoid the external electromagnetic interference
• D.Ensure that electronic components in communication equipment are protected from electrostatic high voltage, transient discharge pulses, etc.

Which of the following statements about digital bandwidth vs analog bandwidth is true

• A.Analog bandwidth refers to the frequency range in an analog electronic system, usually in Hertz (Hz).
• B.Digital bandwidth refers to the amount of information sent in a unit of time, usually in bits per second (bps), and the actual throughput in a data communication system is usually greater than the digital bandwidth of the system.
• C.In the case of a certain channel bandwidth, the actual channel capacity mainly depends on the signal-to-noise ratio of the communication system and the modulation and transmission technology used.
• D.In wireless communication systems, the maximum rate of digital transmission is limited by the bandwidth of the analog channel.

(Single Choice) The following technologies are not specific to the 802.11ax protocol.

• A.802.11ax modulation mode supports 1024QAM.
• B.802.11ax supports both uplink and downlink MU-MIMO.
• C.802.11ax introduces BSS-COLOR to quickly identify BSS and improve signal reception and demodulation efficiency.
• D.Supports 8-channel bonding with 160MHz bandwidth.

When WA2220X-AGP works as a bridge under 11a, by default, it can

• A.2; 15
• B.2; 30
• C.4; 30
• D.4; 15

Which statement about the management frame information element is correct is

• A.TIM data pending indication is a series of bitmaps, each bit represents an associated user, 0 and 1 represent whether there is cached data
• B.Association ID Association ID, each STA that successfully associates with the AP will be assigned an association ID number;
• C.The default interval of Beacon interval is 100, the unit is milliseconds
• D.Listen interval is the interval at which the dormant client must periodically wake up to listen to the Beacon