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.
| 51. |
In backbone network, the topology of the backbone is |
| A. | bus |
| B. | star |
| C. | mesh |
| D. | ring |
| Answer» B. star | |
| 52. |
In the transparent bridge, the stations are completely unaware of the existence of |
| A. | Ports |
| B. | Repeaters |
| C. | Bridge |
| D. | Switch |
| Answer» D. Switch | |
| 53. |
A repeater receives a signal and before it becomes too weak or corrupted, regenerates the original |
| A. | bit pattern |
| B. | signals |
| C. | segments |
| D. | frames |
| Answer» B. signals | |
| 54. |
In source routing, a sending station defines the bridges that the frame must |
| A. | Link |
| B. | Visit |
| C. | Repeat |
| D. | Connect |
| Answer» C. Repeat | |
| 55. |
Fast Ethernet also called |
| A. | Standard 802.3u |
| B. | Standard 802.3z |
| C. | Standard 802.3s |
| D. | Standard 802.3y |
| Answer» B. Standard 802.3z | |
| 56. |
The slot time for gigabit Ethernet is |
| A. | 0.312 |
| B. | 0.412 |
| C. | 0.512 |
| D. | 0.612 |
| Answer» D. 0.612 | |
| 57. |
Address is unicast, if the least significant bit of the first byte is |
| A. | 0 |
| B. | 1 |
| C. | -1 |
| D. | infinity |
| Answer» B. 1 | |
| 58. |
The preamble is actually added at the |
| A. | Physical layer |
| B. | Data Link layer |
| C. | Logic layer |
| D. | All of the above |
| Answer» B. Data Link layer | |
| 59. |
Fast Ethernet was designed to compete with |
| A. | LAN protocols |
| B. | WAN protocol |
| C. | MAN protocol |
| D. | None |
| Answer» B. WAN protocol | |
| 60. |
Logic Link Control (LLC) defines a |
| A. | Protocol Data Unit |
| B. | Destination Service Access Point |
| C. | Source Service Access Point |
| D. | High-level Data Link Control |
| Answer» B. Destination Service Access Point | |
| 61. |
Fast Ethernet has a data rate of |
| A. | 100 Mbps |
| B. | 50 Mbps |
| C. | 560 Mbps |
| D. | 700 Mbps |
| Answer» B. 50 Mbps | |
| 62. |
Maximum length of Ethernet frame is |
| A. | 512 bits |
| B. | 46 Bits |
| C. | 12144 Bits |
| D. | 56 Bits |
| Answer» D. 56 Bits | |
| 63. |
You are trying to decide which type of network you will use at your office, and you want the type that will provide communication and avoid collisions on the cable. Which of the following is the best network choice? |
| A. | ARCnet |
| B. | Ethernet |
| C. | CSMA/CA |
| D. | Token-Ring |
| Answer» E. | |
| 64. |
Reconfiguration of the stations in transparent bridges are unnecessary, if the bridge has added or deleted from |
| A. | Packages |
| B. | Frames |
| C. | Segments |
| D. | System |
| Answer» E. | |
| 65. |
VLANs provides |
| A. | time-efficiency and security |
| B. | reduce network traffic |
| C. | both a and b |
| D. | None of the Above |
| Answer» D. None of the Above | |
| 66. |
Repeaters only regenerate the strength of the signals, it does not |
| A. | amplify the signals |
| B. | forward frame |
| C. | regenerate the data |
| D. | All of the above |
| Answer» B. forward frame | |
| 67. |
Active hub is actually a |
| A. | multipart network |
| B. | multipart repeater |
| C. | multipart router |
| D. | multipart hub |
| Answer» C. multipart router | |
| 68. |
Select the correct statement about broadband and baseband. |
| A. | Baseband refers to local area networks, and broadband refers to wide area networks. |
| B. | Baseband operates at a standard bit rate, whereas broadband may operate at different rates as needed |
| C. | Baseband networks carry a single channel on a single cable, whereas broadband networks carry several channels on a single cable |
| D. | Broadband networks carry several channels on a single cable, whereas in a baseband network several cables carry one channel |
| Answer» D. Broadband networks carry several channels on a single cable, whereas in a baseband network several cables carry one channel | |
| 69. |
.................... bridge operates in promiscuous mode. |
| A. | Transparent bridge |
| B. | Selective flooding |
| C. | Source Routing |
| D. | Remote Bridges |
| Answer» B. Selective flooding | |
| 70. |
In Token Ring, Which of the following is not a transceiver function ? |
| A. | Transmission and receipt of data |
| B. | Checking of line voltages |
| C. | Addition and subtraction of header |
| D. | Collision |
| Answer» D. Collision | |
| 71. |
LANs can be connected by a device called ................. |
| A. | Routers |
| B. | Modems |
| C. | Ethernet card |
| D. | Bridges |
| Answer» E. | |
| 72. |
1000Base-T uses ________ line coding. |
| A. | 4D-PAM5 |
| B. | 8B6T |
| C. | MLT-3 |
| D. | Manchester |
| Answer» B. 8B6T | |
| 73. |
Standard Ethernet (10-Mbps) uses _______ encoding. |
| A. | NRZ |
| B. | AMI |
| C. | Manchester |
| D. | differential Manchester |
| Answer» D. differential Manchester | |
| 74. |
100Base-T4 uses ________ line coding. |
| A. | NRZ |
| B. | 8B6T |
| C. | MLT-3 |
| D. | Manchester |
| Answer» C. MLT-3 | |
| 75. |
In the Ethernet, the _______field is actually added at the physical layer and is not (formally) part of the frame. |
| A. | CRC |
| B. | preamble |
| C. | address |
| D. | none of the above |
| Answer» C. address | |
| 76. |
______defines a protocol data unit (PDU) that is somewhat similar to that of HDLC. |
| A. | MAC |
| B. | LLC |
| C. | LLU |
| D. | none of the above |
| Answer» C. LLU | |
| 77. |
In Ethernet addressing, if the least significant bit of the first byte is 1, the address is _________. |
| A. | unicast |
| B. | multicast |
| C. | broadcast |
| D. | none of the above |
| Answer» C. broadcast | |
| 78. |
In Ethernet addressing, if the least significant bit of the first byte is 0, the address is _________. |
| A. | unicast |
| B. | multicast |
| C. | broadcast |
| D. | none of the above |
| Answer» B. multicast | |
| 79. |
The minimum frame length for 10-Mbps Ethernet is _______bytes. |
| A. | 32 |
| B. | 80 |
| C. | 128 |
| D. | 64 |
| Answer» E. | |
| 80. |
The Logic Link Control provides one single data link control protocol for all IEEE |
| A. | Metropolitan Area Networks |
| B. | Wide Area Networks |
| C. | Local Area Networks |
| D. | Wireless Networks |
| Answer» D. Wireless Networks | |
| 81. |
100Base-TX uses _________ block coding and ________ line coding. |
| A. | 4B/5B; NRZ |
| B. | 8B/10B; NRZ |
| C. | 4B/5B; MLT-3 |
| D. | 8B/10B; NRZ |
| Answer» D. 8B/10B; NRZ | |
| 82. |
The mode of propagation of data in 10GBase-E is |
| A. | Single mode |
| B. | Double mode |
| C. | Multi mode |
| D. | None of the given |
| Answer» B. Double mode | |
| 83. |
In 10Base5, the maximum length of the coaxial cable is |
| A. | 10 meter |
| B. | 250 meter |
| C. | 500 meter |
| D. | 5000 meter |
| Answer» D. 5000 meter | |
| 84. |
The MAC sublayer frames the data received from upper layer and passes them to the |
| A. | Data Link Layer |
| B. | Physical layer |
| C. | Network Layer |
| D. | Transport Layer |
| Answer» C. Network Layer | |
| 85. |
In multicast the relationship between the sender and receiver is |
| A. | one to one |
| B. | one to many |
| C. | many to one |
| D. | many to many |
| Answer» C. many to one | |
| 86. |
The minimum frame length for 1O-Mbps Ethernet is 64 bytes and the maximum is |
| A. | 500 bytes |
| B. | 1000 bytes |
| C. | 1520 bytes |
| D. | 1518 bytes |
| Answer» E. | |
| 87. |
The _____ sublayer is responsible for the operation of the CSMA/CD access method and framing. |
| A. | LLC |
| B. | MII |
| C. | MAC |
| D. | none of the above |
| Answer» D. none of the above | |
| 88. |
The term that is used to raise the bandwidth and separate collision domains are called |
| A. | Switch Ethernet |
| B. | Bridge |
| C. | Hub Ethernet |
| D. | None of the above |
| Answer» C. Hub Ethernet | |
| 89. |
In .................... all frames are given to the computer, not to those addressed. |
| A. | Promiscuous mode |
| B. | Miscues mode |
| C. | Normal mode |
| D. | Special Mode |
| Answer» B. Miscues mode | |
| 90. |
Media access control is the sub layer of |
| A. | LLC |
| B. | IEEE |
| C. | ANSI |
| D. | both a and c |
| Answer» C. ANSI | |
| 91. |
The data link layer in the IEEE standard is divided into two sub layers of |
| A. | MAC and ACKs |
| B. | LAN and MAC |
| C. | LLC and NLC |
| D. | LLC and MAC |
| Answer» E. | |
| 92. |
Gigabit Ethernet is also known as the |
| A. | Standard 802.3u |
| B. | Standard 802.3z |
| C. | Standard 802.3s |
| D. | Standard 802.3y |
| Answer» C. Standard 802.3s | |
| 93. |
In filtering when the frame is forwarded, the decision must specify the |
| A. | Device |
| B. | modes |
| C. | Port |
| D. | bridge |
| Answer» D. bridge | |
| 94. |
Three different encoding schemes were used for all the implementations in |
| A. | Standard Ethernet |
| B. | fast Ethernet |
| C. | Gigabit Ethernet |
| D. | 10 Gigabit Ethernet |
| Answer» C. Gigabit Ethernet | |
| 95. |
The maximum length of optical fiber in 10BaseF is |
| A. | 100 meter |
| B. | 185 meters |
| C. | 500 meter |
| D. | 2000 meter |
| Answer» E. | |
| 96. |
Each LAN type has its own frame |
| A. | Set |
| B. | Links |
| C. | Data |
| D. | Format |
| Answer» E. | |
| 97. |
Virtual LANs create |
| A. | broadcast domains |
| B. | limited domains |
| C. | metropolitan area domains |
| D. | All of the Above |
| Answer» B. limited domains | |
| 98. |
FDDI is an acronym for ............... |
| A. | Fast data delivery interface |
| B. | Fiber distributed data interface |
| C. | Fiber distributed digital interface |
| D. | fast distributed data interface |
| Answer» C. Fiber distributed digital interface | |
| 99. |
In Ethernet addressing, if all the bits are 1s, the address is _________. |
| A. | unicast |
| B. | multicast |
| C. | broadcast |
| D. | none of the above |
| Answer» D. none of the above | |
| 100. |
The sublayer of data link layer that frames the data received from upper layer is called |
| A. | MAC Layer |
| B. | Data Link Layer |
| C. | Control Sub Layer |
| D. | MAC Control Layer |
| Answer» B. Data Link Layer | |