PW0-270 Exam Questions

Given the frame capture and the decode shown, after which Beacons in the list shown (as indicated by the frame number in the leftmost column) would multicast traffic have been sent...

According to the 802.11n-2009 amendment, what security requirement is specified for HT BSSs?

Which statement accurately describes IEEE 802.11 Power Save operation in a Basic Service Set that does not support the QoS facility?

Given: Your network consists of HT and ERP access points, and you are implementing VoWiFi with support for U-APSD. When an ERP handset operating in WMM Power Save mode with a Recei...

WMM-PS trigger frames can be what type of IEEE 802.11 frames? (Choose 2)

IEEE 802.11-2007 specifies two ERP protection mechanisms: RTS/CTS and CTS-to-Self. Which statement is true regarding these two protection mechanisms? (Choose 2)

As it pertains to HT L-SIG TXOP Protection, what statement is true?

When a client station operating under EDCA sends an RTS frame and NAV protection is desired for only the first or sole frame in the TXOP, the duration field will contain an amount...

Many access points support IEEE 802.1Q VLAN tagging. When analyzing a WLAN system using IEEE 802.1Q tags, where can the VLAN tag number be seen?

With what access category's parameters are WLAN multicast video frames transmitted when the EDCAF is in use by the transmitting station?

Given: The exhibit shows a small network environment with dual-band APs. What is true of the network shown in this spectrum analyzer trace?

Given: ABC Company recorded the 2.4 GHz band with a spectrum analyzer prior to installing their ERP WLAN. Image-A is how the band appeared prior to the WLAN installation. Image-B i...

What types of wireless systems are illustrated?

Given: The graphic is taken from a spectrum analyzer. What types of RF transmitters are illustrated?

Given: Before installing a Wi-Fi network, ABC Company performed a spectrum analysis looking for problems. The 2.4 GHz RF spectrum looked like Image-A. After installing an ERP WLAN,...

Using the exhibit as a reference, which spectrum plots display, in real time, the value of RF amplitude as a function of radio frequency?

As shown in the exhibit, a spectrum analyzer has measured both 802.11 and non-802.11 RF transmissions in the 2.4 GHz band. The exhibit shows a continuous video transmitter near cha...

ABC Company is having VoWiFi latency problems on their 802.11g WLAN. A wireless administrator has noticed in the phone's client utilities software that the MAC CRC Error count is h...

While at a government-operated facility, you are attempting to troubleshoot a WLAN performance problem using a wireless protocol analyzer. When you start capturing frames, you see...

Given: Shown are frames captured from an IEEE 802.1X/LEAP authentication. This WLAN is a Robust Security Network (RSN) using the CCMP cipher suite. Using the information given in t...

ABC Company's WLAN administrator is getting complaints from one user that his WLAN throughput is sluggish compared to other users in his area. The administrator takes his diagnosti...

Given: There are many differences between analyzing wireless and wired networks. In a wireless network, there is no guarantee that one station can hear another station's transmissi...

When 802.11 standard compliant AES-CCMP security is being used with IPSec/ESP for layered security, what will a WLAN protocol analyzer see as the security mechanism in use when a u...

Given the IEEE 802.11 Beacon frame decode shown, determine which statement is definitively true.

Given the screenshot shown, Choose the statement that accurately describes what is being seen by this protocol analyzer.

Shown is a screenshot of a wireless protocol analyzer displaying the decode information for a single 802.11 encrypted data + CF-Poll frame. The infrastructure BSS on which this inf...

As a WLAN consultant, you have been asked to troubleshoot a problem with a single wireless client station (Station-Z). Your customer informs you that other wireless client stations...

Why is a high CRC error rate in L2 protocol analysis software NOT always a valid indicator of network performance? (Choose 3)

What HT PPDU format is shown in the exhibit?

What is the purpose of a PHY preamble?

What IEEE 802.11 technology is illustrated by the exhibit?

When a 5 GHz HT station in a 40 MHz BSS desires to protect a 40 MHz transmission from an OFDM station using an RTS/CTS or CTS-to-Self exchange, what frame format is used for the RT...

Which statements are true regarding Beacons from an AP in an HT infrastructure BSS that is configured with multiple WLAN profiles? (Choose 3)

Using the exhibit as a reference, answer the following. STA1 sent a data frame to Mesh AP2 destined for a local file server on the same subnet with MAC address 00:11:22:33:44:55. M...

According to 802.11-2007, in what frame type(s) might you find the PMK Count and PMKID List fields?

In the frame decode shown, there are two sets of supported data rates. 1, 2, 5.5, and 11 Mbps are all shown as "basic" data rates, and 6, 9, 12, 18, 24, 36, 48, and 54 Mbps are sho...

In which 802.11 frames is the SSID present, provided the SSID is not removed through proprietary software configuration by an administrator? (Choose 3)

An HT STA does not receive an ACK for a first-attempt data frame that it transmitted. Assuming this STA is not using BlockAcks in this case, what happens to the HT STA's EDCA conte...

What two IEEE 802.11 entities may be used to separate successful transmissions within an EDCA TXOP? (Choose 2)

How long, in microseconds, is the required Slot Time that is announced by an AP in an HT BSS when HR/DSSS, ERP-OFDM, and HT-OFDM client stations are associated to the AP?

Which statements accurately describe IEEE 802.11 EDCA collision handling in a WMM-compliant infrastructure WLAN? (Choose 2)

What must occur before an HT STA operating in an EDCA BSS can transmit a data frame over the wireless medium? (Choose 3)

In the analyzer trace shown, the TBTT is nominally 102.5 milliseconds. Why does the Beacon transmission interval vary?

Which statements are true regarding wireless network discovery and scanning processes for an HT network? (Choose 2)

Which statements are true regarding frame acknowledgement in an IEEE 802.11 WLAN? (Choose 3)

When an originator QoS STA initiates a BlockAck agreement with a recipient QoS STA, what is the first frame sent by the originator?

According to the IEEE 802.11 standard, what is one structural difference between a MAC Protocol Data Unit (MPDU) and a MAC Management Protocol Data Unit (MMPDU)?

Which parameters accurately describe the Beacon Interval field in the Beacon frame? (Choose 2)

The IEEE 802.11 Dynamic Frequency Selection (DFS) service is capable of performing what functions? (Choose 2)

Which statements regarding an IEEE 802.11 Channel Switch Announcement frame are true? (Choose 2)