MSC-121 試験問題を無料オンラインアクセス

Your customer has a requirement that all APs used in the design have dual radios, 2.4 GHz and 5.8 GHz. Which of the following APs cannot meet this requirement?

• A.AP6532
• B.AP7131
• C.AP6511
• D.AP650

In radio frequency transmission the term Modulation Coding Scheme (MCS) is defined by which of the following?

• A.The use of an encryption algorithm to securely code a modulated signal before transmission.
• B.A multiplexing technique that uses orthogonal codes in place of X.509 digital certificates for message validation.
• C.The combination of digital modulation method and a forward error correction mechanism.
• D.A set of AES/CCMP cipher modes which assure integrity of an OFDM transmission.

Given the RSSI Coverage and Building Materials exhibits at the bottom, which of the following is the reason there is no coverage at the location marked "A" in the RSSI Coverage exhibit?

• A.Dry wall or sheetrock
• B.The elevators or metallic obstacles
• C.Cubical wall
• D.Basement or foundation wall

You are performing a site survey for a law firm in a multi-tenant, multistory building. The firm uses VOIP wireless phones and they plan to implement an 802.11g network. Since you are concerned about latency, you associate an 802.11g client with an 802.11g access point and then use a wireless protocol analyzer to capture wireless traffic on the 2.4 GHz channels. Among the expected management, control, and data frames displayed by the protocol analyzer you notice numerous CTS frames. Which of the following best explains what the presence of CTS frames on an 802.11g network indicates?

• A.The presence of 802.11b devices
• B.That there is a wireless intrusion detection system in the building
• C.That you will have no problem with the VOIP phones
• D.The presence of other VOIP phone systems in the area

You are designing a WLAN for a golf course design firm. At the conclusion of the assessment of the physical context of the proposed WLAN, it becomes apparent that there are many WLANs in the eight story building in which the company is located. One of the LAN administrators says he has heard that "hiding" the SSID will stop hackers from finding the VVLAN. Which of the following best describes the results of "SSID Hiding"?

• A.Not broadcasting the SSID makes it more difficult for clients properly configured with the SSID to authenticate.
• B.Not responding to null SSIDs causes the EAP process to break down.
• C.The SSID can still be seen with a wireless protocol analyzer.
• D.These values must be present in order for intrusion detection systems to function.