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.

151.

IPv4 protocol carries data from different

A. Stations
B. Nodes
C. Protocols
D. Datagram
Answer» D. Datagram
152.

Internet addresses are usually written in

A. binary notation
B. dotted hexa notation
C. octant notation
D. dotted decimal notation
Answer» E.
153.

In connectionless service, the network layer protocol treats each packet

A. As a switch
B. Independent of other packet
C. Dependent to other packet
D. Locally
Answer» C. Dependent to other packet
154.

In the strict source route, the sender can choose a route with a specific type of

A. Quality
B. Service
C. Data
D. Path
Answer» C. Data
155.

In IPv4, what is needed to determine the number of the last byte of a fragment?

A. Identification number
B. Offset number
C. Total length
D. (b) and (c)
Answer» E.
156.

Which of the following is a necessary part of the IPv6 datagram?

A. Base header
B. Extension header
C. Data packet from the upper layer
D. (a) and (c)
Answer» B. Extension header
157.

In IPv4, if the fragment offset has a value of 100, it means that _______.

A. the datagram has not been fragmented
B. the datagram is 100 bytes in size
C. the first byte of the datagram is byte 100
D. the first byte of the datagram is byte 800
Answer» E.
158.

An IPv6 address consists of ________ bytes (octets).

A. 4
B. 8
C. 16
D. none of the above
Answer» D. none of the above
159.

In IPv4 header, an HLEN value of decimal 10 means _______.

A. there are 10 bytes of options
B. there are 40 bytes of options
C. there are 10 bytes in the header
D. there are 40 bytes in the header
Answer» E.
160.

In IPv4, what is the value of the total length field in bytes if the header is 28 bytes and the data field is 400 bytes?

A. 428
B. 407
C. 107
D. 427
Answer» B. 407
161.

An IPv4 datagram is fragmented into three smaller datagrams. Which of the following is true?

A. The do not fragment bit is set to 1 for all three datagrams.
B. The more fragment bit is set to 0 for all three datagrams.
C. The identification field is the same for all three datagrams.
D. The offset field is the same for all three datagrams.
Answer» D. The offset field is the same for all three datagrams.
162.

In IPv4, what is the length of the data field given an HLEN value of 12 and total length value of 40,000?

A. 39,988
B. 40,012
C. 40,048
D. 39,952
Answer» E.
163.

The term that enables a user to have a large set of addresses internally and one address externally is called

A. Network Address Translation
B. Network Address Table
C. Subnetting
D. Classnet
Answer» B. Network Address Table
164.

In the IPv4 layer, the datagram is of

A. Fixed length
B. Variable length
C. Global length
D. 0 length
Answer» C. Global length
165.

A best-effort delivery service such as IPv4 includes _______.

A. error checking
B. error correction
C. datagram acknowledgment
D. none of the above
Answer» E.
166.

MIB Stands for

A. Management Information Bytes
B. Management Information Board
C. Management Information Base
D. Management Information Bit
Answer» D. Management Information Bit
167.

The Internet authorities have reserved three sets of addresses as

A. masknet addresses
B. IP addresses
C. private addresses
D. public addresses
Answer» D. public addresses
168.

The number of addresses assigned to an organization in classless addressing _______.

A. can be any number
B. must be a multiple of 256
C. must be a power of 2
D. none of the above
Answer» D. none of the above
169.

What is the result of ANDing 192 and 65?

A. 192
B. 65
C. 64
D. none of the above
Answer» D. none of the above
170.

IGMP is a companion to the ______ protocol.

A. UDP
B. TCP
C. ICM
D. none of the above
Answer» E.
171.

In the version field of IPv4 header, when the machine is using some other version of IPv4 then the datagram is

A. Discarded
B. Accepted
C. Interpreted
D. Interpreted incorrectly
Answer» B. Accepted
172.

The main difference between SNMPv3 and SNMPv2 is the

A. management
B. integration
C. classification
D. enhanced security
Answer» E.
173.

In IPv4, If we use a protocol with Maximum Transfer Unit (MTU), it makes the transmission more

A. Difficult
B. Efficient
C. Slow
D. Effective
Answer» C. Slow
174.

Simple Network Management Protocol (SNMP), defines eight types of

A. Protocols
B. Domains
C. Packets
D. Paths
Answer» D. Paths
175.

The ________ protocol is the transmission mechanism used by the TCP/IP suite.

A. ARP
B. IP
C. RARP
D. none of the above
Answer» C. RARP
176.

IP is _________ datagram protocol.

A. an unreliable
B. a connectionless
C. both a and b
D. none of the above
Answer» D. none of the above
177.

IPv6 allows _________ security provisions than IPv4.

A. more
B. less
C. the same level
D. none of the above
Answer» B. less
178.

In IPv6, options are inserted between the _________ and the ___________ data.

A. base header; extension header
B. base header; upper-layer data
C. base header; frame header
D. none of the above
Answer» C. base header; frame header
179.

In IPv4, when a datagram is encapsulated in a frame, the total size of the datagram must be less than the _______.

A. MUT
B. MAT
C. MTU
D. none of the above
Answer» D. none of the above
180.

The term ________ means that IP provides no error checking or tracking. IP assumes the unreliability of the underlying layers and does its best to get a transmission through to its destination, but with no guarantees.

A. reliable delivery
B. connection-oriented delivery
C. best-effort delivery
D. none of the above
Answer» D. none of the above
181.

In IPv4, which field or bit value unambiguously identifies the datagram as a fragment?

A. Do not fragment bit ? 0
B. More Fragment bit ? 0
C. Fragment offset = 1000
D. none of the above
Answer» D. none of the above
182.

A unicast address of the IPv6 defines a

A. Single computer
B. Single network
C. Single Station
D. None of the given
Answer» B. Single network
183.

Internet is also known as

A. Datagram Network
B. Datagram Link
C. Datagram Nodes
D. Datagram Internet
Answer» B. Datagram Link
184.

In IPv4, the service type of the service in the header field, the first 3 bits are called

A. Type of service
B. Code bits
C. Sync bits
D. Precedence bits
Answer» E.
185.

Switching can be divided into three broad categories: circuit switching, packet switching and

A. Data Switching
B. IP Switching
C. Message Switching
D. Frame Switching
Answer» D. Frame Switching
186.

The source first makes a connection with the destination before sending a packet in

A. Connection-oriented service
B. Connectionless service
C. Unguided Connection
D. All of the above
Answer» B. Connectionless service
187.

The control of users, access to network resources through charges are the main responsibilities of

A. Reactive Management
B. Configuration Management
C. Accounting Management
D. Security Management
Answer» D. Security Management
188.

A sequence of packets with same source and destination addresses can be sent one after another when the connection is

A. Bypassed
B. Switched
C. Established
D. Linked
Answer» D. Linked
189.

SNMP defines the format of packets exchanged between a manager and an agent, It reads and changes the status of objects in

A. 2NMP packets
B. 4NMP packets
C. 8NMP packets
D. 12NMP packets
Answer» D. 12NMP packets
190.

If the IPv4 address is not listed in the datagram, a router must not be

A. Rechecked
B. Synchronized
C. Identified
D. Visited
Answer» E.
191.

In IPv4, the value of the Maximum Transfer Unit (MTU) depends on the

A. Physical network protocol
B. DataLink network protocol
C. UD protocol
D. Transport network protocol
Answer» B. DataLink network protocol
192.

The header of the datagram in the IPv4 has

A. 0 to 20 bytes
B. 20 to 40 bytes
C. 20 to 60 bytes
D. 20 to 80 bytes
Answer» D. 20 to 80 bytes
193.

An option which is used to record the time of datagram processing by a router is called

A. Timestamp
B. Time frame
C. Time delay
D. Timewrap
Answer» B. Time frame
194.

A term that has a limited lifetime in its travel through an internet is called

A. Message
B. Datagram
C. Servers
D. Protocols
Answer» C. Servers
195.

In IPv4, a record route can list up to

A. 11 Router Addresses
B. 12 Router Addresses
C. 13 Router Addresses
D. 14 Router Addresses
Answer» B. 12 Router Addresses
196.

In IP addresses, the third-level of hierarchy is

A. Subnetting
B. No Subnetting
C. Supernetting
D. IP mask
Answer» B. No Subnetting
197.

252.5.15.111 adress lies in class

A. Class A
B. Class B
C. Class D
D. Class E
Answer» D. Class E
198.

In IPv6, the _______ field in the base header and the sender IP address combine to indicate a unique path identifier for a specific flow of data.

A. flow label
B. next header
C. hop limit
D. destination IP address
Answer» B. next header
199.

In IPv6, the type of traffic that expects minimum delay is

A. Controlled Transmission
B. Congestion Controlled Traffic
C. Close Traffic
D. Non-Congestion Traffic
Answer» E.
200.

In the IP networks all prefixes are

A. Different
B. Common
C. 0s
D. Null
Answer» C. 0s