Question

1. Which 802.11 standard has the best performing parameters in terms of data rate, range, channel separation issues and interoperability?

1. 802.11n
2. 802.11b
3. 802.11g
4. 802.11a

2. WPA2 uses IEEE 802.X with the Extensible Authentication Protocol (EAP) to perform mutual authentication, either via a _________ server or by means of a changing key generated on the basis of a shared secret pass-phrase.

1. AES
2. RADIUS
3. WEP
4. Common

3. At the MAC level, 802.11 LANs involve the use of ______ for medium access control.

1. CSMA/CD
2. CSMA/CA
3. BSSIDs and SSIDs
4. Bridging and Roaming

4. Which two answers are true?

1. Auto negotiation is mandatory for a 1000BASE-T LAN
2. The IP Masquerade server acts as a router
3. NAT is an acronym for Network Address Token
4. Port forwarding is referred to as tunnelling
5. Determinism has no pre-determined or fixed timing
6. The default gateway performs bridging functions

5. How many hosts are possible on each subnet of a class B network if the subnet mask is 255.255.224.0? What is the total number of subnets on this class B network?

1. 8190 and 6
2. 62 and 16
3. 30 and 14
4. 8192 and 8

6. Which twoanswers are TRUE for Ethernet (IEEE802.3) Frames?  

1. The Source and Destination Address fields carry 6 bytes in total
2. The payload data field is a variable length field and depend on the data carried
3. No CRC is used as the frames are inherently reliable
4. The Preamble and SFD fields contain 8 bytes each
5. The Source and Destination Address fields carry 6 bytes each

7. Which two answers are TRUE for the setup of new AP's in a new building?

1. It is not required to plan ahead where AP's are to be installed in a new building
2. There is no reason for IT professionals and architects to consult about building design when as building layout doesn't influence Wi-Fi coverage at all
3. A large of amount of work goes into planning the positions of AP's in new buildings
4. Architects and IT professionals should team up when planning AP's in new buildings as little design changes can have a profound influence on coverage
5. Radius servers are not required in corporate Wi-Fi systems

8.Which three answers are TRUE for Wi-Fi?  

a. Roaming is best carried out by giving each AP its own SSID
b. An AP can either be a bridge or an AP, never both simultaneously
c. The BSSID of AP's are often taken from the MAC address of the radio
d. Corporate roaming requires a RADIUS server to invisibly hand users over between stations
e. When AP's are used in bridge + AP mode, they easily become bottlenecks as load increases

Answer 1

/* PLEASE POST 5 , 6, 7 AGAIN AND PLEASE TELL WHAT IS AP BEFORE POSTING BELOW DOWN ALL OTHER ANSWERS GIVEN */

1 a) 802.11n

802.11n

2.4GHz/5GHz

Up to 600Mbps

Ad hoc/infrastructure

175+ feet indoors; range can be affected by building materials.

CSMA/CA

2 c) WEP

3 b) CSMA/CA

4 d) Port forwarding is referred to as tunnelling

f) The default gateway performs bridging functions

6 a) The Source and Destination Address fields carry 6 bytes in total

b)The payload data field is a variable length field and depend on the data carried

/* PLEASE UPVOTE (THANK YOU IN ADVANCE) */