Data Communication and Computer Networks MCQ - Cloud Computing

86 True or False. Virtual private clouds (VPCs) are global and subnets are zonal

A
True
B
False

View Explanation
Comment

VPCs are global and subnets are regional

87 How many IP addresses does a /24 network have?

A
32
B
256
C
1024
D
65556

View Explanation
Comment

A /24 network has 256 IP addresses. The /24 in this example dictates how many IP addresses are available. Adding 1 to this number will cut the number of IP addresses available in half.

88 What is the purpose of a route?

A
A route will always point to a switch
B
A route provides a path for traffic to flow
C
A route allows or denies traffic in a network
D
a route connects two virtual private clouds (VPCs) together

View Explanation
Comment

A route provides a path for data to flow. Every subnet in a VPC will also have a route.

89 Which of the following is true concerning firewall rules?

A
By default, firewall rules don't exist
B
Firewall rules block all inbound traffic by default
C
Firewall rules allow all inbound and outbound traffic by default
D
Firewall rules allow all inbound traffic but denies outbound traffic by default

View Explanation
Comment

All traffic is blocked inbound by default. If inbound traffic is configured to be permitted inbound, that traffic will also be permitted outbound

90 Your instance needs a public IP address that won't change if the instance is shut down and restarted. Which of the following is the best option?

A
Update the host file on the instance.
B
Set the IP address on the boot script
C
Can't be done. Have users point to the server via DNS name
D
Reserve a public static IP address from Google and assign it to the instance

View Explanation
Comment

Public IP addresses can be allocated by Google and assigned to an instance if a static IP is needed