Wi-Fi MCQ Wi-Fi MCQ wireless communication Questions for computer competitive exam and interview (CISCO, GATE, COPA, CCC etc.) preparation ...
Wi-Fi MCQ
Wi-Fi MCQ wireless communication Questions for computer competitive exam and interview (CISCO, GATE, COPA, CCC etc.) preparation with pdf These Wi-Fi related questions belongs to Networking chapter of computer science. "Wi-Fi" ( A wireless communication device)
1.
Wireless networking, Wi-Fi, can be used to connect computers in a home, and
many cities are using the technology to offer free or low-cost internet access
to residents. What’s another name for Wi-Fi?
a)
801.12 networking
b)
802.22 networking
c)
802.11 networking
d)
802.13 networking
Ans. c
2. Name of a WiFi network may be ______ .
(a) visible
(b) invisible
(c) both a & b
(d) none of them
Ans. c
3.
Which of the following is a sign that you might be an unsafe network?
a)
The connection requires you to sign up for an account
b)
There is no password needed to access the internet
c)
You get free access with every fifth frappe
d)
None of these
Ans. b
4.
Wi-Fi stands for______
a)
Wireless Fidelity
b)
Wireless Functioning
c)
Wireless function
d)
None of these
Ans. a
5. The WiFi standard which permits transmission distance of 100m with data rate of 11MBPS is ______.
(a) IEEE 802.11a
(b) IEEE 802.11b
(c) IEEE 802.11g
(d) IEEE 802.11n
Ans. b
6. The WiFi standard which permits transmission distance of 100m with data rateof 54MBPS is ______.
(a) IEEE 802.11a
(b) IEEE 802.11b
(c) IEEE 802.11g
(d) IEEE 802.11n
Ans. c
7. The WiFi standard which permits transmission distance of more than 100m with data rate of 100MBPS is ______ .
(a) IEEE 802.11a
(b) IEEE 802.11b
(c) IEEE 802.11g
(d) IEEE 802.11n
Ans. d
8. Normally, WiFi signal reach ______ mdistance.
(a) 50 to 100m
(b) 1 to 2m
(c) 0.5 to 1.0m
(d) 2 to 3m
Ans. a
9. In the
modern days, _______ is the best choice for wireless networking.
(a) WiFi
(b) infrared
(c) radio waves
(d) micro-wave
Ans. a
10. Wireless
networks are _______ wired networks.
(a) slower than
(b) faster than
(c) as fast as
(d)
none of them
Ans. a
11. The wireless transmission is divided into
a) 3 broad group
b) 6 broad group
c) 9 broad group
d) 8 broad group
Ans. a
12. The WiFi standard which permits transmission distance of 50m with data rate of 54MBPS is ______ .
(a) IEEE 802.11a
(b) IEEE 802.11b
(c) IEEE 802.11g
(d) IEEE 802.11n
Ans. a
13. Open WiFi
networks have _______.
(a) a visible name
(b) no password
(c) visible name without any password
(d) All of
these
Ans. c
14.
Which wireless protocol uses TKIP?
a)
WEP
b)
WPA
c)
WPA2
d)
WPS
Ans.
b
15.
A Wi-Fi enabled device can be ______
a)
PC
b)
Game Console
c)
Mobile phone
d)
All of these
Ans.
d
16.
Wi-Fi uses which kind of multiplexing?
a)
OFDM
b)
TDM
c)
WDM
d)
FDM
Ans.
a
17.
Wifi Alliance for Certified products based on the
a)
IEEE 802.3
b)
IEEE 802.5
c)
IEEE 802.11
d)
None of these
Ans.
c
18.Does
wifi support roaming?
a)
Yes
b)
No
Ans.
a
19.
What is the “acceptable” limit for the attenuation of a wifi signal (threshold
before breaking signal)
a) 75 dB
b) 20 db
c) -75 DB
d) -75 GHz
Ans.
c
20.
In wireless ad-hoc network _______
a)
access point is not required
b)
access point is must
c)
nodes are not required
d)
all nodes are access points
Ans.
a
21.
Which multiple access technique is used by IEEE 802.11 standard for wireless
LAN?
a)
CDMA
b)
CSMA/CA
c)
ALOHA
d)
CSMA/CD
Ans.
b
22.
A wireless LAN is often an extension of the ____ of a wired network
a)
Hub
b)
Edge
c)
Distribution
d)
Core
Ans.
b
23.
Which aspect of Wireless LAN security guards against eavesdropping of wireless
LAN traffic?
a)
Accounting
b)
Authorization
c)
Authentication
d)
Encryption
Ans.
d
24.
A wireless access point is generally considered to be a layer _____ device.
a)
4
b)
1
c)
2
d)
3
Ans.
c
25.
Which organization performs inter-operability tests of WiFi devices?
a)
WLAN Professionals
b)
IEEE
c)
Wi-Fi Alliance
d)
IANA
Ans.
c
26.
The Wi-Fi brand was created by which organization?
a) Wi-Fi Alliance
b) IEEE
c) ISO
d) Cisco
Ans.
a
27.
Which Wireless LAN network component is responsible for centralized control
& management of a WLAN?
a)
A network switch
b)
An access point
c)
A wireless LAN controller
d)
A wireless client
Ans.
c
28.
A WLAN access point converts between 802.___ and 802.____ frames.
a)
802.11ac, 802.11n
b)
802.11, 802.3
c)
802.11i, 802.3
d)
802.1, 802.3
Ans.
b
29.
The infrastructure components of a wireless network are generally interconnected
by:
a)
Clients
b)
RF links
c)
Switches
d)
All of these
Ans.
c
30.
Which IEEE standard do Wireless LAN networks conform to?
a)
802.13
b)
802.3
c)
802.11
d)
802.1
Ans.
c
31.
IEEE 802.11 defines the basic service set as the building block of a wireless
a)
LAN
b)
WAN protocol
c)
MAN
d)
All of these
Ans.
a
32.
In wireless LAN, there are many hidden stations so we cannot detect the
a)
Frames
b)
Collision
c)
Signal
d)
Data
Ans.
b
33.
A set that makes stationary or mobile wireless station and also have optional
central base station is known as
a)
Basic service set
b)
Extended service set
c)
Network point set
d)
Access point
Ans.
a