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,IoT gateway is: D
A. Physical device
B. Software program
C. Raspberry Pi
D. All of the above
(True or False) A
Gateways can be configured to perform pre-processing of
the collected data from thousands of sensors locally before
transmitting it to the next stage.
A. True
B. False
IoT gateways perform several critical functions such as: C
(Which one is wrong).
A. Device connectivity
B. Protocol translation
C. Improving networks
D.Data filtering and processing, security
An IoT gateway device bridges the communication gap A
between: (Which one is wrong).
A. end users
B. IoT devices
C. Sensors
D. cloud
Before purchasing one gateway device you should B
consider: (Which one is wrong).
A. Network Security
B. Uptime
C. Power
D. Downtime
Which one isn't key core principles of security for IoT A
gateway.
A. Strategy
B. Confidentiality
C. integrity
D. authentication
,Which device is often to be attacked in IoT system. C
A. Sensor
B.Actuator
C. Gateway
D. Cloud Server
The maximum number of IPv4 address is: A
A. 2^32
B. 2^64
C. 2^128
D. 2^256
The maximum number of IPv6 address is: C
A. 2^32
B. 2^64
C. 2^128
D. 2^256
How many byte an IPv4 address has: B
A. 32
B. 4
C. 16
D. 64
Which of the following IPv4 address is in correct format. D
A. 172.16.400.3
B. 172.a4.400.3
C. 172.16.286.3
D. None of the above
The benefits of IPv6 are (which one is wrong). A
A. more private address collisions
B. Auto-configuration
C. Flexible options and extensions
D. No more NAT (Network Address Translation)
Which of the following IP address is wrong? C
A. 43.126.38.91
B. 126.133.254.1
C. 22.131.256.3
D. 222.222.222.222
, The protocol for Internet is: A
A. TCP/IP
B. ZigBee
C. Wi-Fa
D. Bluetooth
An automatic telephone switch has: D
A. Memory
B. Service logic
C. Controller
D. All of the above
Are VPNs legal? C
A. Yes in all countries
B. Not at all
C. Yes In some countries
D. Needs permission In the USA
What you should considered more when you are buying A
VPN:
A. Speed, privacy and security
B. Cost
C. Security
D. Free trials and money back guarantees,
It is safe to use public Wi-Fi hotspots if you are connected A
to
A. Internet server
B. ISP
C. VPN provider
D. All of the above
Which one is wrong for cloud and IoT cloud? B
A. The cloud is just a metaphor for the Internet
B. The cloud is a Secure Internet provider
C. Cloud integrates billions of devices, sensors, gateways,
protocols and data storage
D. IoT cloud is a sophisticated high performance network
of servers