MCQOPTIONS
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MCQOPTIONS
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.
| 101. |
Physical and data link layers of a network operate |
| A. | Independently |
| B. | Locally |
| C. | Seperately |
| D. | Unjointly |
| Answer» C. Seperately | |
| 102. |
Adjusting the network components and features, can be a daily occurrence in a large network is called |
| A. | Reconciliation |
| B. | Reservation |
| C. | Restoration |
| D. | Reconfiguration |
| Answer» E. | |
| 103. |
To record the Internet routers of IPv4, that handles the datagram is responsibility of |
| A. | Record protocol |
| B. | Record Data |
| C. | Record Route |
| D. | Record Header |
| Answer» D. Record Header | |
| 104. |
In IPv4, the only thing encapsulated in a frame is |
| A. | Unit |
| B. | Data Frame |
| C. | Datagram |
| D. | Adresses |
| Answer» D. Adresses | |
| 105. |
To define the packet to be sent from a manager to an agent and vice versa, the term is used named |
| A. | SNMP |
| B. | SMTP |
| C. | HTTP |
| D. | URL |
| Answer» B. SMTP | |
| 106. |
To creates a collection of named objects, their types and their relationships to each other in an entity to be managed, we use |
| A. | SMI |
| B. | SNMP |
| C. | SMTP |
| D. | MIB |
| Answer» E. | |
| 107. |
The _______ field of the IGMP message is all zeros in a query message. |
| A. | version |
| B. | type |
| C. | group address |
| D. | none of the above |
| Answer» D. none of the above | |
| 108. |
The least significant 23 bits in a 48-bit Ethernet address identify a ________. |
| A. | multicast router |
| B. | host |
| C. | multicast group |
| D. | none of the above |
| Answer» D. none of the above | |
| 109. |
A multicast message is sent from _______ to _______. |
| A. | one source; one destination |
| B. | one source; multiple destinations |
| C. | multiple sources; one destination |
| D. | none of the above |
| Answer» C. multiple sources; one destination | |
| 110. |
In networks that do not support physical multicast addressing, multicasting can be accomplished through _______. |
| A. | mapping |
| B. | queries |
| C. | tunneling |
| D. | none of the above |
| Answer» D. none of the above | |
| 111. |
IGMP operates __________. |
| A. | locally |
| B. | globally |
| C. | both a and b |
| D. | none of the above |
| Answer» B. globally | |
| 112. |
An IGMP query is sent from a _______ to a _______. |
| A. | host; host |
| B. | host; router |
| C. | router; host or router |
| D. | none of the above |
| Answer» D. none of the above | |
| 113. |
The _______ is used by a router in response to a received leave report. |
| A. | general query message |
| B. | special query message |
| C. | membership report |
| D. | none of the above |
| Answer» C. membership report | |
| 114. |
In IGMP, the general query message ___________________ group. |
| A. | does not define a particular |
| B. | explicitly defines a |
| C. | can define more than one |
| D. | none of the above |
| Answer» B. explicitly defines a | |
| 115. |
In IPv4, class _______ has the greatest number of addresses in each block. |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 116. |
Identify the class of the following IPv4 address: 4.5.6.7. |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 117. |
Identify the class of the following IPv4 address: 191.1.2.3. |
| A. | A |
| B. | B |
| C. | C |
| D. | none of the above |
| Answer» C. C | |
| 118. |
What is the result of ANDing 0 and 15? |
| A. | 255 |
| B. | 15 |
| C. | 0 |
| D. | none of the above |
| Answer» D. none of the above | |
| 119. |
The number of addresses in a class A block is _______. |
| A. | 65,534 |
| B. | 16,777,216 |
| C. | 256 |
| D. | none of the above |
| Answer» C. 256 | |
| 120. |
What is the first address of a block of classless addresses if one of the addresses is 12.2.2.76/27? |
| A. | 12.2.2.0 |
| B. | 12.2.2.32 |
| C. | 12.2.2.64 |
| D. | none of the above |
| Answer» D. none of the above | |
| 121. |
Which one is not a contiguous mask? |
| A. | 255.255.255.254 |
| B. | 255.255.224.0 |
| C. | 255.148.0.0 |
| D. | All of the above |
| Answer» D. All of the above | |
| 122. |
The number of addresses in a class C block is _______. |
| A. | 65,534 |
| B. | 16,777,216 |
| C. | 256 |
| D. | none of the above |
| Answer» D. none of the above | |
| 123. |
Which address could be the beginning address of a block of 32 classless addresses? |
| A. | 2.4.6.5 |
| B. | 2.4.6.16 |
| C. | 2.4.6.64 |
| D. | none of the above |
| Answer» D. none of the above | |
| 124. |
The first address assigned to an organization in classless addressing _______. |
| A. | must be a power of 4 |
| B. | must be evenly divisible by the number of addresses |
| C. | must belong to one of the A, B, or C classes |
| D. | none of the above |
| Answer» C. must belong to one of the A, B, or C classes | |
| 125. |
Which address could be the beginning address of a block of 16 classless addresses? |
| A. | 2.4.6.5 |
| B. | 2.4.6.15 |
| C. | 2.4.6.62 |
| D. | none of the above |
| Answer» E. | |
| 126. |
How can we examine the current routing tables in command prompt? |
| A. | using routestart |
| B. | using netstart |
| C. | using netstat |
| D. | either a or b |
| Answer» D. either a or b | |
| 127. |
DHCP (dynamic host configuration protocol) provides _____ to the client. |
| A. | IP address |
| B. | MAC address |
| C. | url |
| D. | DNS address |
| Answer» B. MAC address | |
| 128. |
The number of addresses in a class B block is _______. |
| A. | 65,536 |
| B. | 16,777,216 |
| C. | 256 |
| D. | none of the above |
| Answer» B. 16,777,216 | |
| 129. |
DHCP uses UDP port ____ for sending data to the server. |
| A. | 66 |
| B. | 67 |
| C. | 68 |
| D. | 69 |
| Answer» C. 68 | |
| 130. |
Which address could be the beginning address of a block of 256 classless addresses? |
| A. | 2.4.6.5 |
| B. | 2.4.6.15 |
| C. | 2.4.6.0 |
| D. | none of the above |
| Answer» D. none of the above | |
| 131. |
The bytes in the original datagram of IPv4 are numbered |
| A. | 0 to 2999 |
| B. | 0 to 3999 |
| C. | 0 to 4999 |
| D. | 0 to 5999 |
| Answer» C. 0 to 4999 | |
| 132. |
In packet format, the base header occupies |
| A. | 55 Bytes |
| B. | 50 Bytes |
| C. | 45 Bytes |
| D. | 40 Bytes |
| Answer» E. | |
| 133. |
The total length field defines the total length of the datagram including the |
| A. | Length |
| B. | Data Length |
| C. | Header |
| D. | Footer |
| Answer» D. Footer | |
| 134. |
The masks in slash notation of 255.255.255.0 would be |
| A. | /8 |
| B. | /24 |
| C. | /32 |
| D. | /36 |
| Answer» C. /32 | |
| 135. |
IPv6 addresses use |
| A. | Hexadecimal colon notation |
| B. | Binary notation |
| C. | Dotted decimal notation |
| D. | None of the Above |
| Answer» B. Binary notation | |
| 136. |
In IPv4, a machine drops the header and trailer, when it receives a |
| A. | Signal |
| B. | Frame |
| C. | Service |
| D. | Request |
| Answer» C. Service | |
| 137. |
Which of the following is true about ICMP messages? |
| A. | An ICMP error message may be generated for an ICMP error message. |
| B. | An ICMP error message may be generated for each fragment. |
| C. | An ICMP error message may be generated for a multicast datagram. |
| D. | none is true |
| Answer» E. | |
| 138. |
Unicast, any cast and multicast are addresses of |
| A. | Ipv4 |
| B. | IPv6 |
| C. | Both |
| D. | None |
| Answer» C. Both | |
| 139. |
ICMP is a _________ layer protocol. |
| A. | data link |
| B. | transport |
| C. | network |
| D. | none of the above |
| Answer» D. none of the above | |
| 140. |
IGMP helps a ________ router create and update a list of loyal members related to each router interface. |
| A. | broadcast |
| B. | unicast |
| C. | multicast |
| D. | none of the above |
| Answer» D. none of the above | |
| 141. |
In IPv6, when a datagram needs to be discarded in a congested network, the decision is based on the _______ field in the base header. |
| A. | hop limit |
| B. | priority |
| C. | next header |
| D. | none of the above |
| Answer» C. next header | |
| 142. |
IGMP is _______ protocol. |
| A. | an error reporting |
| B. | a group management |
| C. | a transmission |
| D. | none of the above |
| Answer» C. a transmission | |
| 143. |
Which of the following is true about ICMP messages ? |
| A. | An ICMP error message may be generated for an ICMP error message. |
| B. | An ICMP error message may be generated only for the first fragment. |
| C. | An ICMP error message may be generated for a multicast datagram. |
| D. | none is true |
| Answer» C. An ICMP error message may be generated for a multicast datagram. | |
| 144. |
In IPv4 protocol, the size of the source and destination address is |
| A. | 64 Bit |
| B. | 16 Bit |
| C. | 128 bits long |
| D. | 32 Bit |
| Answer» E. | |
| 145. |
The type of disconnection in which three way handshake protocol is used is ................. |
| A. | Graceful disconnection |
| B. | Abrupt disconnection |
| C. | Greedy disconnection |
| D. | Random disconnection |
| Answer» B. Abrupt disconnection | |
| 146. |
An ICMP message has _____ header and a variable-size data section. |
| A. | a 16-byte |
| B. | a 32-byte |
| C. | an 8-byte |
| D. | none of the above |
| Answer» D. none of the above | |
| 147. |
Connection-oriented protocols is used in virtual circuit approach for packet switching, such as in |
| A. | Frame Relay |
| B. | FSK |
| C. | ATM |
| D. | both a and c |
| Answer» E. | |
| 148. |
What is the result of ANDing 254 and 15? |
| A. | 254 |
| B. | 14 |
| C. | 0 |
| D. | none of the above |
| Answer» C. 0 | |
| 149. |
The total length of the IPv4 datagram is limited to 65,535 (2^16 - 1) bytes, the field length is |
| A. | 10 Bits |
| B. | 12 Bits |
| C. | 14 Bits |
| D. | 16 Bits |
| Answer» E. | |
| 150. |
In IPv4 datagram, padding is added if the size of a datagram is less than |
| A. | 46 Bytes |
| B. | 45 Bytes |
| C. | 50 Bytes |
| D. | 48 Bytes |
| Answer» B. 45 Bytes | |