MCQOPTIONS
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MCQOPTIONS
This section includes 198 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Networks knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
The Ethernet frame contains |
| A. | 3 Fields |
| B. | 5 Fields |
| C. | 7 Fields |
| D. | 9 Fields |
| Answer» D. 9 Fields | |
| 102. |
A repeater is a device that operates only in the |
| A. | connector |
| B. | LAN |
| C. | WAN |
| D. | MAN |
| Answer» C. WAN | |
| 103. |
CRC field is used to show the |
| A. | Error Correction |
| B. | Sender address |
| C. | receiver address |
| D. | error detection information |
| Answer» E. | |
| 104. |
If an Ethernet destination address is 08:07:06:05:44:33, then this is a ______ address. |
| A. | unicast |
| B. | multicast |
| C. | broadcast |
| D. | any of the above |
| Answer» B. multicast | |
| 105. |
Passive Hubs are actually a |
| A. | simple switch |
| B. | gateway |
| C. | connector |
| D. | router |
| Answer» D. router | |
| 106. |
_________ uses four twisted-pair cables that connect each station to a common hub. |
| A. | 10Base5 |
| B. | 10Base2 |
| C. | 10Base-T |
| D. | 10Base-F |
| Answer» D. 10Base-F | |
| 107. |
Which of the following could not be an Ethernet unicast destination? |
| A. | 43:7B:6C:DE:10:00 |
| B. | 44:AA:C1:23:45:32 |
| C. | 46:56:21:1A:DE:F4 |
| D. | 48:32:21:21:4D:34 |
| Answer» B. 44:AA:C1:23:45:32 | |
| 108. |
The Computer Society of the IEEE started a project named project 802 in |
| A. | 1970 |
| B. | 1975 |
| C. | 1980 |
| D. | 1985 |
| Answer» E. | |
| 109. |
The repeater is a |
| A. | amplifier |
| B. | generator |
| C. | modifier |
| D. | regenerator |
| Answer» E. | |
| 110. |
Fast Ethernet address contains |
| A. | 46 bits |
| B. | 48 bits |
| C. | 54 bits |
| D. | 64 bits |
| Answer» C. 54 bits | |
| 111. |
In transparent bridges, the systems administrator would manually enter each table entry during |
| A. | Data Setup |
| B. | Bridge Setup |
| C. | Frame Setup |
| D. | Packages Setup |
| Answer» C. Frame Setup | |
| 112. |
_________ uses thick coaxial cable. |
| A. | 10Base5 |
| B. | 10Base2 |
| C. | 10Base-T |
| D. | 10Base-F |
| Answer» B. 10Base2 | |
| 113. |
The bridge must buffer the frame to compensate for the incurred |
| A. | Loss |
| B. | Difference |
| C. | Shortage |
| D. | Damage |
| Answer» C. Shortage | |
| 114. |
The data of the bridge frames must be fragmented into several frames, then the incoming frame's size is too |
| A. | Short |
| B. | Long |
| C. | Large |
| D. | limited |
| Answer» D. limited | |
| 115. |
There is no filtering capability in |
| A. | hubs |
| B. | bridges |
| C. | gateways |
| D. | repeaters |
| Answer» E. | |
| 116. |
Fast Ethernet has a data rate of ________Mbps. |
| A. | 10 |
| B. | 100 |
| C. | 1000 |
| D. | 10,000 |
| Answer» C. 1000 | |
| 117. |
Stations can be configured through technique |
| A. | manually |
| B. | semiautomatic |
| C. | automatic |
| D. | All of them |
| Answer» E. | |
| 118. |
In the Ethernet frame, the _______ field contains error detection information. |
| A. | CRC |
| B. | preamble |
| C. | address |
| D. | none of the above |
| Answer» B. preamble | |
| 119. |
The block encoding increases the bit rate from |
| A. | 75 to 100 mbps |
| B. | 100 to 125 mbps |
| C. | 125 to 150 mbps |
| D. | 150 to 175 mbps |
| Answer» C. 125 to 150 mbps | |
| 120. |
Each LAN type has its own strategy in the sending of |
| A. | Bits |
| B. | Bytes |
| C. | Data |
| D. | Frames |
| Answer» B. Bytes | |
| 121. |
In transparent bridges, redundancy of the bridges can create loops in the system which is very |
| A. | Desirable |
| B. | Undesirable |
| C. | Rare |
| D. | Easy to unloop |
| Answer» C. Rare | |
| 122. |
Connecting devices are divided into |
| A. | five different categories |
| B. | four different categories |
| C. | three different categories |
| D. | seven different categories |
| Answer» B. four different categories | |
| 123. |
A repeater connects segments of the same |
| A. | Wide area network |
| B. | Wireless Network |
| C. | Local area network |
| D. | Metropolitan Network |
| Answer» D. Metropolitan Network | |
| 124. |
In standard Ethernet, data is converted to a digital signal using the |
| A. | NRZ Scheme |
| B. | NRZ - L |
| C. | NRZ - I |
| D. | Manchester Scheme |
| Answer» E. | |
| 125. |
The terms that control the flow and errors in full duplex switched Ethernet is called |
| A. | LLC Sub layer |
| B. | MAC Sub layer |
| C. | LLC Control Layer |
| D. | MAC Control Layer |
| Answer» E. | |
| 126. |
Fast Ethernet can transmit data at the rate of |
| A. | 50 mbps |
| B. | 100 mbps |
| C. | 150 mbps |
| D. | 200 mbps |
| Answer» C. 150 mbps | |
| 127. |
In the full duplex mode of gigabit Ethernet, there is no |
| A. | attenuation |
| B. | Frame Bursting |
| C. | Collision |
| D. | carrier extension |
| Answer» D. carrier extension | |
| 128. |
The connecting device which operates at the physical and data link layer is called |
| A. | repeater |
| B. | bridge |
| C. | router |
| D. | gateway |
| Answer» C. router | |
| 129. |
The device that operates below the physical layer of the OSI model is |
| A. | active hub |
| B. | passive hub |
| C. | bridge |
| D. | repeater |
| Answer» C. bridge | |
| 130. |
Protocols in which stations listen for a carrier and act accordingly are .................. |
| A. | ALOHA |
| B. | Multiple access |
| C. | Station Model |
| D. | CSMA |
| Answer» E. | |
| 131. |
No protocol at the data link layer allows the fragmentation and reassembly of |
| A. | Packets |
| B. | Frames |
| C. | Stations |
| D. | Nodes |
| Answer» C. Stations | |
| 132. |
Bridge can operate on both layers those are |
| A. | physical and the data link layer |
| B. | physical and the sessional layer |
| C. | application and the data link layer |
| D. | physical and presentation layer |
| Answer» B. physical and the sessional layer | |
| 133. |
A system equipped with transparent bridges must meet |
| A. | Three Criteria |
| B. | Two Criteria |
| C. | One Criteria |
| D. | None of the given |
| Answer» B. Two Criteria | |
| 134. |
Which of the following could not be an Ethernet multicast destination? |
| A. | B7:7B:6C:DE:10:00 |
| B. | 7B:AA:C1:23:45:32 |
| C. | 7C:56:21:1A:DE:F4 |
| D. | 83:32:21:21:4D:34 |
| Answer» D. 83:32:21:21:4D:34 | |
| 135. |
A standalone program that has been modified to work on a LAN by including concurrency controls such as file and record locking is an example of ................ |
| A. | LAN intrinsic software |
| B. | LAN aware software |
| C. | Groupware |
| D. | None of these |
| Answer» B. LAN aware software | |
| 136. |
The _______ layer of Ethernet consists of the LLC sublayer and the MAC sublayer. |
| A. | data link |
| B. | physical |
| C. | network |
| D. | none of the above |
| Answer» B. physical | |
| 137. |
A transceiver cable is used in ......................... Ethernet. |
| A. | 10Base 5 |
| B. | 10Base 2 |
| C. | 10Base – T |
| D. | 10Base - F |
| Answer» B. 10Base 2 | |
| 138. |
IEEE Standard was adopted by the |
| A. | ISO |
| B. | ANSI |
| C. | OSI |
| D. | None of the above |
| Answer» C. OSI | |
| 139. |
In 10Base2, the cable is |
| A. | Thick |
| B. | Thin |
| C. | Twisted Pair |
| D. | None of the above |
| Answer» C. Twisted Pair | |
| 140. |
The protocol used in ETHERNET? |
| A. | ALOHA |
| B. | Binary Count down |
| C. | CSMA/CD |
| D. | Multiple Access Protocol |
| Answer» D. Multiple Access Protocol | |
| 141. |
By using fast Ethernet two stations are connected via |
| A. | point to point |
| B. | Switch |
| C. | Hub |
| D. | Bridge |
| Answer» B. Switch | |
| 142. |
.................. Algorithm is used in transparent bridges. |
| A. | Forward Learning |
| B. | Backward Learning |
| C. | Reverse Backward Learning |
| D. | Reverse Forward Learning |
| Answer» C. Reverse Backward Learning | |
| 143. |
NIC stand for |
| A. | Network Interface Card |
| B. | National Internet code |
| C. | Network Isolated card |
| D. | Network international code |
| Answer» B. National Internet code | |
| 144. |
A transparent bridge's duties include |
| A. | filtering frames |
| B. | forwarding |
| C. | blocking |
| D. | All of them |
| Answer» E. | |
| 145. |
The latest Ethernet standard is Ten-Gigabit Ethernet operates at |
| A. | 2 Gbps |
| B. | 6 Gbps |
| C. | 8 Gbps |
| D. | 10 Gbps |
| Answer» E. | |
| 146. |
Acknowledgments of the frames must be implemented at the |
| A. | Lower Layers |
| B. | Sub Layers |
| C. | Higher Layers |
| D. | all of the above |
| Answer» D. all of the above | |
| 147. |
A bridge has a table that maps addresses to |
| A. | nodes |
| B. | Signals |
| C. | Media |
| D. | Port |
| Answer» E. | |
| 148. |
In 10Base2, the maximum length of coaxial cable is |
| A. | 10 meter |
| B. | 100 meter |
| C. | 185 meter |
| D. | 500 meter |
| Answer» D. 500 meter | |
| 149. |
The number of wires used in 1000BaseT are |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 150. |
100Base-FX uses _________ block coding and ________ line coding. |
| A. | 4B/5B; NRZ-I |
| B. | 8B/10B; NRZ |
| C. | 4B/5B; MLT-3 |
| D. | 8B/10B; NRZ |
| Answer» B. 8B/10B; NRZ | |