Question: You have a class C network address. Your unit is being split into three groups. For various administrative and security reasons, each of these groups needs its own subnet with about 50 addresses each. Do you have enough IP addresses to create these subnets?

Answer Choices:
Yes
No

Answer: Yes

 

Question: Using CIDR, an organization that needs 2,000 IP addresses is best served by a:

Answer Choices:
/24 address block
/20 address block
/22 address block
/21 address block

Answer: /21 address block

 

Question: Subnetting is

Answer Choices:
A way of reducing the size of networks
A way of reducing IP addresses
A way of breaking down large blocks of IP addresses into smaller address blocks
A way of distributing applications

Answer: A way of breaking down large blocks of IP addresses into smaller address blocks

 

Question: The common packet format that can be transferred by any networking technology and that serves all applications is defined at the ______ layer.

Answer Choices:
Network layer
Transport layer
Data Link layer
Application layer

Answer: Transport layer

 

Question: In TDM:

Answer Choices:
Signals from each channel are sent at a specified time.
Signals from each channel are sent at a specified phase/delay.
Signals from each channel are sent at a specified frequency.
Signals from each channel are sent at a specified amplitude.

Answer: Signals from each channel are sent at a specified time.

 

Question: The term UTP stands for:

Answer Choices:
Unshielded telephone pair
Unshielded twisted pair
Uncovered twisted pair
Uncovered telephone pair

Answer: Unshielded twisted pair

 

Question: Single mode fiber is preferred over multi-mode fiber for short distances.

Answer Choices:
True
False

Answer: False

 

Question: At which layer of the OSI model are you likely to see acknowledgments of data segments?

Answer Choices:
Network
Presentation
Application
Physical
Transport

Answer: Transport

 

Question: The data link is responsible for sending data between:

Answer Choices:
None of the above
Devices on neighboring networks
Devices on a single network
Devices anywhere on the internet

Answer: Devices on a single network

 

Question: The contribution of the OSI model was that:

Answer Choices:
It helped specify the concept of layers in data communication.
It helped develop the technology used for routing.
It helped develop the technologies used for reliable data delivery.
It helped develop the technologies used for signaling.

Answer: It helped specify the concept of layers in data communication.