Course 1: Build Your First Network

Question 1

Which two hosts are on the same network?

A) 192.168.1.10 /23 and 192.168.0.5 /23
B) 192.168.1.10 /24 and 192.168.0.5 /24
C) 192.168.1.10 /23 and 192.168.2.5 /23
D) 192.168.1.10 /24 and 192.168.2.5 /24

Answer 1

A) 192.168.1.10 /23 and 192.168.0.5 /23

Question 2

What is the CIDR notation for the Subnet Mask: 255.255.255.128

A) /24
B) /25
C) /16
D) This is not a valid Subnet Mask

Answer 2

B) /25

Question 3

What is the CIDR notation for the Subnet Mask: 255.255.250.0?

A) /24
B) /25
C) /16
D) This is not a valid Subnet Mask

Answer 3

D) This is not a valid Subnet Mask

Question 4

Which Protocol automatically assigns host configurations on a network?

A) TCP
B) UDP
C) ARP
D) DHCP

Answer 4

D) DHCP

Question 5

Which Protocol does a host use to request the MAC address of another host?

A) ARP
B) TCP
C) UDP
D) IP

Answer 5

A) ARP

Question 6

What Protocol is used for error free communication?

A) DHCP
B) TCP
C) UDP
D) IP

Answer 6

B) TCP

Question 7

Which Protocol is used to send data when speed is more important than reliability?

A) DHCP
B) TCP
C) UDP
D) IP

Answer 7

C) UDP

Question 8

Which Protocol operates at Layer 3, the Network Layer of the OSI model?

A) ARP
B) TCP
C) UDP
D) IP

Answer 8

D) IP

Question 9

What is the name of Layer 5 in the OSI Model?

A) Network Layer
B) Application Layer
C) Data Link Layer
D) Transport Layer
E) Physical Layer

Answer 9

B) Application Layer

Question 10

What is the name of Layer 4 in the OSI Model?

A) Network Layer
B) Application Layer
C) Data Link Layer
D) Transport Layer
E) Physical Layer

Answer 10

D) Transport Layer

Question 11

What is the name of Layer 3 in the OSI Model?

A) Network Layer
B) Application Layer
C) Data Link Layer
D) Transport Layer
E) Physical Layer

Answer 11

A) Network Layer

Question 12

What is the name of Layer 2 in the OSI Model?

A) Network Layer
B) Application Layer
C) Data Link Layer
D) Transport Layer
E) Physical Layer

Answer 12

C) Data Link Layer

Question 13

What is the name of Layer 1 in the OSI Model?

A) Network Layer
B) Application Layer
C) Data Link Layer
D) Transport Layer
E) Physical Layer

Answer 13

E) Physical Layer

Question 14

In Networking, what can the term “Port number” mean? (Select all that apply)

A) A physical identifier for an Ethernet connector on a switch
B) The number of settings in a host configuration
C) Converting a decimal number to binary and visa-versa
D) A software identified within a segment header

Answer 14

A) A physical identifier for an Ethernet connector on a switch

D) A software identifier within a segment header

Question 15

You need to quickly check if the host 192.168.1.45 is currently online. Which should you use?

A) Wireshark
B) Ping
C) Traceroute
D) ARP

Answer 15

B) Ping