Explore topic-wise MCQs in Engineering.

This section includes 274 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.

251.

Segmentation of a data stream happens at which layer of the OSI model?

A. Physical
B. Data Link
C. Network
D. Transport
Answer» E.
252.

When data is encapsulated, which is the correct order?

A. Data, frame, packet, segment, bit
B. Segment, data, packet, frame, bit
C. Data, segment, packet, frame, bit
D. Data, segment, frame, packet, bit
Answer» D. Data, segment, frame, packet, bit
253.

Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?

  1. Half-duplex Ethernet operates in a shared collision domain.
  2. Half-duplex Ethernet operates in a private collision domain.
  3. Half-duplex Ethernet has higher effective throughput.
  4. Half-duplex Ethernet has lower effective throughput.

A. 2 only
B. 1,2 and 3
C. 1 and 4
D. 4 only
Answer» D. 4 only
254.

What type of RJ45 UTP cable is used between switches?

A. Straight-through
B. Crossover cable
C. Crossover with a CSU/DSU
D. Crossover with a router in between the two switches
Answer» C. Crossover with a CSU/DSU
255.

How does a host on an Ethernet LAN know when to transmit after a collision has occurred?

  1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
  2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
  3. You can improve the CSMA/CD network by adding more hubs.
  4. After a collision, the station that detected the collision has first priority to resend the lost data.
  5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.

A. 1 and 3
B. 2 and 4
C. 1,3 and 4
D. 2 and 5
Answer» E.
256.

Which of the following types of connections can use full duplex?

  1. Hub to hub
  2. Switch to switch
  3. Host to host
  4. Switch to hub
  5. Switch to host

A. 1, 2 and 4
B. 3 and 4
C. 3 and 5
D. 2, 3 and 5
Answer» E.
257.

Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?

A. Layer 2
B. Layer 3
C. Layer 4
D. Layer 7
Answer» D. Layer 7
258.

Which fields are contained within an IEEE Ethernet frame header?

  1. Source and destination MAC address
  2. Source and destination network address
  3. Source and destination MAC address and source and destination network address
  4. FCS field

A. 1 and 4
B. 2 only
C. 2 and 3 only
D. 3 only
Answer» B. 2 only
259.

What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?

A. Straight-through
B. Crossover cable
C. Crossover with a CSU/DSU
D. Rolled
Answer» E.
260.

You need to configure a server that is on the subnet 192.168.19.24/29. The router has the first available host address. Which of the following should you assign to the server?

A. 192.168.19.0 255.255.255.0
B. 192.168.19.33 255.255.255.240
C. 192.168.19.26 255.255.255.248
D. 192.168.19.31 255.255.255.248
Answer» D. 192.168.19.31 255.255.255.248
261.

You have an interface on a router with the IP address of 192.168.192.10/29. What is the broadcast address the hosts will use on this LAN?

A. 192.168.192.15
B. 192.168.192.31
C. 192.168.192.63
D. 192.168.192.127
Answer» B. 192.168.192.31
262.

You have a network with a subnet of 172.16.17.0/22. Which is the valid host address?

A. 172.16.17.1 255.255.255.252
B. 172.16.0.1 255.255.240.0
C. 172.16.20.1 255.255.254.0
D. 172.16.18.255 255.255.252.0
Answer» E.
263.

On a VLSM network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?

A. /27
B. /28
C. /29
D. /30
Answer» E.
264.

To test the IP stack on your local host, which IP address would you ping?

A. 127.0.0.0
B. 1.0.0.127
C. 127.0.0.1
D. 127.0.0.255
Answer» D. 127.0.0.255
265.

What are the decimal and hexadecimal equivalents for the binary number 10110111?

A. <i class="networking-code">69/0x2102</i>
B. <i class="networking-code">183/B7</i>
C. <i class="networking-code">173/A6</i>
D. <i class="networking-code">83/0xC5</i>
Answer» C. <i class="networking-code">173/A6</i>
266.

What is the purpose of flow control?

A. To ensure that data is retransmitted if an acknowledgment is not received.
B. To reassemble segments in the correct order at the destination device.
C. To provide a means for the receiver to govern the amount of data sent by the sender.
D. To regulate the size of each segment.
Answer» D. To regulate the size of each segment.
267.

Which three statements are true about the operation of a full-duplex Ethernet network?

  1. There are no collisions in full-duplex mode.
  2. A dedicated switch port is required for each full-duplex node.
  3. Ethernet hub ports are preconfigured for full-duplex mode.
  4. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
  5. The host network card and the switch port must be capable of operating in full-duplex mode.

A. 1, 2, and 5
B. 2 and 4
C. 2, 3 and 4
D. 5 only
Answer» B. 2 and 4
268.

Which of the following are types of flow control?

  1. Buffering
  2. Cut-through
  3. Windowing
  4. Congestion avoidance

A. 1 and 2
B. 1, 3 and 4
C. 2 only
D. 3 only
Answer» C. 2 only
269.

What are two purposes for segmentation with a bridge?

  1. To add more broadcast domains.
  2. To create more collision domains.
  3. To add more bandwidth for users.
  4. To allow more broadcasts for users.

A. 1 only
B. 2 and 3
C. 2 and 4
D. 4 only
Answer» C. 2 and 4
270.

If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?

A. 172.16.45.0
B. 172.16.45.4
C. 172.16.45.8
D. 172.16.45.12
Answer» E.
271.

Using the following illustration, what would be the IP address of E0 if you were using the eighth subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. The zero subnet should not be considered valid for this question.

A. 192.168.10.142
B. 192.168.10.66
C. 192.168.100.254
D. 192.168.10.143
E. 192.168.10.126
Answer» B. 192.168.10.66
272.

Which configuration command must be in effect to allow the use of 8 subnets if the Class C subnet mask is 255.255.255.224?

A. <i class="networking-code">Router(config)#ip classless</i>
B. <i class="networking-code">Router(config)#no ip classful</i>
C. <i class="networking-code">Router(config)#ip unnumbered</i>
D. <i class="networking-code">Router(config)#ip subnet-zero</i>
Answer» E.
273.

Using the illustration from the previous question, what would be the IP address of S0 if you were using the first subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. Again, the zero subnet should not be considered valid for this question.

A. 192.168.10.24
B. 192.168.10.62
C. 192.168.10.30
D. 192.168.10.127
Answer» D. 192.168.10.127
274.

What is the subnetwork address for a host with the IP address 200.10.5.68/28?

A. 200.10.5.56
B. 200.10.5.32
C. 200.10.5.64
D. 200.10.5.0
Answer» D. 200.10.5.0