First Quiz

What layer of the OSI model is responsible for end-to-end transmission and error checking?

• Network layer
• Transport layer
• Session layer
• Presentation layer

Which OSI layer is responsible for converting data formats so they can be understood by applications?

• Session layer
• Presentation layer
• Application layer
• Transport layer

Which layer of the OSI model would a switch operate at?

• Network layer
• Data link layer
• Transport layer
• Physical layer

How many octets are there in an IPv4 address?

• Two
• Three
• Four
• Five

What is the default subnet mask for a Class A network?

• 255.0.0.0
• 255.255.0.0
• 255.255.255.0
• 255.255.255.255

In subnetting, what does CIDR stand for?

• Classless Inter-Domain Routing
• Classless Intra-Domain Routing
• Classful Inter-Domain Routing
• Classful Intra-Domain Routing

If a network has a subnet mask of 255.255.255.0, how many usable hosts per subnet are there?

• 256
• 254
• 253
• 252

What is the subnet address for the IP 192.168.1.134/26?

• 192.168.1.128
• 192.168.1.130
• 192.168.1.132
• 192.168.1.134

What command is used to enter the global configuration mode on a Cisco router?

• configure terminal
• ip config
• enable secret
• configure global

What command is used to save the running-config to the startup-config on a Cisco router?

• write memory
• save running-config
• copy running-config startup-config
• save startup-config