Explore topic-wise MCQs in Internet of things (IoT).

This section includes 301 Mcqs, each offering curated multiple-choice questions to sharpen your Internet of things (IoT) knowledge and support exam preparation. Choose a topic below to get started.

201.

All routers may use universal time, their local clocks may not be

A. Authorized
B. Digitized
C. Synchronized
D. Verified
Answer» D. Verified
202.

The TCP/IP model has connection less communication in ................

A. Transport Layer
B. Internet layer
C. Presentation Layer
D. Application Layer
Answer» C. Presentation Layer
203.

In IPv6 Addresses, to make addresses more readable, IPv6 specifies

A. Octal decimal notation
B. Hexadecimal colon notation
C. Dotted binary notation
D. Dotted decimal notation
Answer» C. Dotted binary notation
204.

A management station, called a manager, is a host that runs the

A. SNMP client program
B. SNMP client post
C. SNMP Server program
D. SNMP Server protocol
Answer» B. SNMP client post
205.

Find the number of addresses in a block of classless addresses if one of the addresses is 12.2.2.7/30.

A. 2
B. 4
C. 8
D. none of the above
Answer» C. 8
206.

What is the first address of a block of classless addresses if one of the addresses is 12.2.2.76/10?

A. 12.0.0.0
B. 12.2.0.0
C. 12.2.2.2
D. none of the above
Answer» B. 12.2.0.0
207.

In IPv4, the subfield of precedence was part of version

A. 4
B. 5
C. 6
D. 7
Answer» B. 5
208.

An organization is granted a block; one address is 2.2.2.64/20. The organization needs 10 subnets. What is the subnet prefix length?

A. /20
B. /24
C. /25
D. none of the above
Answer» C. /25
209.

An organization is granted a block; one address is 2.2.2.64/25. If the subnet prefix length is /28, what is the maximum number of subnets?

A. 2
B. 4
C. 8
D. none of the above
Answer» D. none of the above
210.

An organization is granted a block of classless addresses with the starting address 199.34.76.64/28. How many addresses are granted?

A. 8
B. 16
C. 32
D. none of the above
Answer» C. 32
211.

What is the last address of a block of classless addresses if one of the addresses is 12.2.2.127/28?

A. 12.2.2.16
B. 12.2.2.112
C. 12.2.2.127
D. none of the above
Answer» D. none of the above
212.

What is the default mask for class B in CIDR notation?

A. /9
B. /8
C. /16
D. none of the above
Answer» D. none of the above
213.

An organization is granted a block of classless addresses with the starting address 199.34.32.0/27. How many addresses are granted?

A. 8
B. 16
C. 32
D. none of the above
Answer» D. none of the above
214.

What is the default mask for class A in CIDR notation?

A. /9
B. /8
C. /16
D. /32
Answer» C. /16
215.

In a block, the prefix length is /15; what is the mask?

A. 255.254.0.0
B. 255.255.255.0
C. 255.255.255.128
D. none of the above
Answer» B. 255.255.255.0
216.

In Network Management System, the agent keeps performance information in a

A. Domains
B. IP
C. Database
D. Data Protocol
Answer» D. Data Protocol
217.

In a block, the mask is 255.255.192.0; what is the prefix length?

A. /20
B. /28
C. /18
D. none of the above
Answer» D. none of the above
218.

An IPv6 address is _________ bits long.

A. 32
B. 64
C. 128
D. none of the above
Answer» D. none of the above
219.

In classless addressing, the _______ is the varying part (similar to the hostid).

A. suffix
B. prefix
C. hostid
D. netid
Answer» B. prefix
220.

In classless addressing, the prefix length defines the _____________.

A. netid
B. hostid
C. mask
D. none of the above
Answer» D. none of the above
221.

SNMP provides a set of fundamental operations for monitoring and maintaining a

A. TCP protocol suite
B. DataSet protocol
C. Internet
D. HTML suite
Answer» C. Internet
222.

IPng stands for

A. Internetworking Protocol, next gate
B. Internetworking Protocol, next generation
C. International Protocol, next generation
D. International Protocol, next gate
Answer» C. International Protocol, next generation
223.

If a host does not support the flow label, it sets the flow label field to

A. One
B. Two
C. Three
D. Zero
Answer» E.
224.

When the source needs to pass information to all routers visited by the datagram, option used in

A. Hop-by-Hop Option
B. Loop-by-loop Option
C. IP-by-IP option
D. Header-by-Header option
Answer» B. Loop-by-loop Option
225.

If four hosts on a network belong to the same group, a total of _______ sent in response to a general query message.

A. one membership report is
B. two membership reports are
C. three membership reports are
D. none of the above
Answer» C. three membership reports are
226.

What is the result of ANDing 255 and 15?

A. 255
B. 15
C. 0
D. 1
Answer» C. 0
227.

In IPv4 Addresses, classless addressing is used to

A. Overcome Address Depreciation
B. Overcome Address Deployment
C. Overcome Address Depletion
D. Overcome Address Storage
Answer» D. Overcome Address Storage
228.

The structure of classless addressing does not restrict the number of

A. Hierarchical Loop
B. Hierarchical Entities
C. Hierarchical Links
D. Hierarchical Level
Answer» E.
229.

The Performance management, is closely related to

A. Risk Management
B. Fault management
C. Security Management
D. Configuration management
Answer» C. Security Management
230.

In IPv6, real-time audio or video, particularly in digital form, requires resources such as

A. Fixed Bandwidth
B. Variable Bandwidth
C. High Bandwidth
D. Low Bandwidth
Answer» D. Low Bandwidth
231.

The address FE80::12 is a

A. link local address
B. site local address
C. multicast address
D. loop back address
Answer» B. site local address
232.

ICMP messages are divided into two broad categories: _____________.

A. query and error reporting messages
B. request and response messages
C. request and reply messages
D. none of the above
Answer» B. request and response messages
233.

In IPv6, the flow label is assigned to a packet by the

A. Co-host
B. Source-host
C. Host
D. Medium link
Answer» C. Host
234.

In network addresses, each router has two

A. Addresses
B. Masks
C. Blocks
D. Segments
Answer» B. Masks
235.

In connection-oriented protocols, a sequence of packets are sent on same path in

A. Random order
B. Sequential Order
C. No Specific order
D. According to priority
Answer» C. No Specific order
236.

The entities of network management system have an initial configuration when the network is set up, but can change with

A. Server
B. Time
C. Entity
D. Proxy
Answer» C. Entity
237.

Networks that are made up of hundreds and sometimes thousands of components are known as

A. Complex Networks
B. Hybrid Networks
C. Component Networks
D. All of the Above
Answer» C. Component Networks
238.

In multicast address of IPv6, the third field defines the

A. Group address
B. Prefix
C. Global address
D. Scope
Answer» E.
239.

In IPv4, some physical networks are not able to encapsulate a datagram of

A. 65,555 bytes
B. 65,545 bytes
C. 65,535 bytes
D. 65,525 bytes
Answer» D. 65,525 bytes
240.

In IPv4 Addresses, every Network Address Translation router has a

A. Mask address
B. NAT address
C. Router table
D. translation table
Answer» E.
241.

The Datagram field is to intentionally limit the journey of the

A. Frames
B. Packet
C. IP
D. All of the above
Answer» C. IP
242.

In the Network Address Translation (NAT), all the outgoing packets go through

A. Global router
B. Local router
C. NAT router
D. Private router
Answer» D. Private router
243.

What is the last address of a block of classless addresses if one of the addresses is 12.2.2.6/30?

A. 12.2.2.2
B. 12.2.2.6
C. 12.2.2.7
D. none of the above
Answer» D. none of the above
244.

There are two types of the address that are defined for the

A. Local addresses
B. Reserved addresses
C. Unicast addresses
D. Multicast addresses
Answer» B. Reserved addresses
245.

Identify the class of the following IPv4 address: 229.1.2.3.

A. A
B. B
C. D
D. none of the above
Answer» D. none of the above
246.

In IGMP, a membership report is sent _______.

A. once
B. twice
C. three times
D. none of the above
Answer» C. three times
247.

In a block, the prefix length is /24; what is the mask?

A. 255.255.255.0
B. 255.255.242.0
C. 255.255.0.0
D. none of the above
Answer» B. 255.255.242.0
248.

Find the number of addresses in a block of classless addresses if one of the addresses is 12.2.2.7/24.

A. 32
B. 64
C. 256
D. none of the above
Answer» D. none of the above
249.

In classful addressing, an IP address in class A, B, or C is divided into

A. Netid and Hostid
B. Router ID
C. Block ID
D. None of the Above
Answer» B. Router ID
250.

In the IPv4, the value 0100 of the type of service bits are used to represent the

A. Maximize reliability
B. Minimize delay
C. Maximize throughput
D. Minimize cost
Answer» D. Minimize cost