Test on computer network with answer P10

The Network Administrator would like to send you a series of multiple choice questions on the computer network so you can consult and test your knowledge.

  1. Question 1. A class C subnet needs to contain at least 15 hosts, use the following Subnet Mask:
    1. 255.255.255.224
    2. 255.0.0.255
    3. 255.255.255.240
    4. 255.255.255.248
  2. Question 2. Which of the following addresses is the subnet address of the host 172.16.25.14/30

    1. 172.16.25.4

    2. 172.16.25.12

    3. 172.16.25.8

    4. 172.16.25.16

  3. Question 3. Which of the following addresses is the subnet address of the host 172.16.55.255/20
    1. 172.16.55.0

    2. 172.16.55.128

    3. 172.16.32.0

    4. 172.16.48.0

       

  4. Question 4. Which of the following addresses is the broadcast address of the network 192.168.25.128/27
    1. 192.168.25.255

    2. 192.168.25.128

    3. 192.168.25.159

    4. 192.168.25.100
  5. Question 5. Which of the following addresses is the broadcast address of the network 192.168.25.128/28
    1. 192.168.25.255

    2. 192.168.25.141

    3. 192.168.25.180

    4. 192.168.25.143

  6. Question 6. A class A subnet lends 5 bits to divide the Subnet, then the Subnet Mask will be:
    1. 255.255.255.248

    2. 255,248,255,255

    3. 255.248.255.0

    4. 255.248.0.0

  7. Question 7. A class A subnet lends 19 bits to divide the Subnet, then the Subnet Mask will be:
    1. 255.255.248.0
    2. 255.255.255.1
    3. 255.255.255.224

    4. 255.248.0.0

  8. Question 8. To connect computers and switches together we can use:
    1. Cross cable (Cross - Cable)
      1. Straight Cable (StraightCable)
      1. RolloverCable
    4. All is wrong
  9. Question 9. Among the following pairs of protocols and services, which pair is wrong?
    1. SMTP: TCP Port 25
      1. FTP: TCP Port 21
      1. HTTP: TCP Port80
      1. TFTP: TCP Port69
  10. Question 10. For IP address 192.168.25.91/26, Subnet Mask will be:

    1. 255.255.255.128

    2. 255.255.255.192
    3. 255.255.255.224
    4. 255,224.255,240
Update 24 May 2019
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