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.

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
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
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
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
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
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
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
Question 8. To connect computers and switches together we can use:
1. Cross cable (Cross - Cable)
2. Straight Cable (StraightCable)
3. RolloverCable
4. All is wrong
Question 9. Among the following pairs of protocols and services, which pair is wrong?
1. SMTP: TCP Port 25
2. FTP: TCP Port 21
3. HTTP: TCP Port80
4. TFTP: TCP Port69
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