networking questions help.?

1. A wireless workgroup bridge is used to connect

a. a wired network segment with a wireless network segment.

b. a wireless network segment with another wireless network segment.

c. a gateway and a bridge.

d. a router and a switch.

2. A(n) _____ provides encryption and authentication services for a wireless network and resides between the wireless network and the wired network to serve as the entry point to the wired network.

a. remote authentication server

b. access point

c. mesh hub router

d. enterprise encryption gateway (EEG)

3. Which of the following statements is false concerning IEEE 802.11ac?

a. It operates in both the 5 GHz and the 2.4 GHz bands.

b. Error correction coding is improved.

c. It enables the simultaneous transmission of different data rates to different clients.

d. Beamforming is a standard feature.

4. Which of the following is not true regarding long-term evolution (LTE)?

a. It was chosen over WiMAX by carriers because it supported the dominant mobile standard worldwide.

b. LTE uses OFDM.

c. Peak download speed can exceed 10 Gbps.

d. MIMO is utilized by LTE.

5. _____ transmits a secondary copy along with the primary information to account for errors.

a. Forward Error Correction (FEC)

b. Multiplexing

c. Bandwidth diversity

d. DSSS framing

6. All of the possible combinations of different factors for 802.11n transmissions are contained in the

a. UNII procedure manual.

b. Wi-Fi table.

c. IEEE 802.11n Resource Guide.

d. Modulation and Coding Scheme (MCS).

7. The hybrid coordination function (HCF) allows for different types of wireless traffic to be given different levels of

a. speed.

b. priority.

c. frame size.

d. back-off procedures.

8. What happens if a probe request frame contains a null frame?

a. All APs will respond.

b. No APs will respond.

c. Only APs with a null SSID will respond.

d. An error message is generated and sent to the APN.