CCNA1 Lesson 6 Datalink Layer

​​Binary to Decimal conversions
Hexademical conversions

Multiple Choice

Why is understanding the datalink layer important for network communication?

• Because it manages how data is formatted for transmission and ensures reliable data transfer.

• Because it is responsible for encrypting all network traffic.

• Because it determines the physical layout of cables and devices only.

• Because it manages user authentication and access control.

Multiple Select

Which of the following are functions of the data link layer?

• Encapsulating Layer 7 packets into Layer 5 frames

• Performing error detection and rejecting corrupt frames

• Routing data between networks

• Exchanging frames between endpoints over the network media

Multiple Choice

Which OSI layer is responsible for preparing network data for the physical network and enabling NIC to NIC communications?

• Physical Layer

• Data Link Layer

• Network Layer

• Transport Layer

Open Ended

What is encapsulation in networking, and why is it important for data transmission?

Multiple Choice

Which type of topology diagram shows the physical location of intermediary devices and cable installation?

• Logical topology diagram

• Physical topology diagram

• Network topology diagram

• Layered topology diagram

Multiple Select

Which of the following are characteristics of the Hub and Spoke WAN topology? (Select 3 that apply)

• Branch sites are directly connected to each other

• A central site interconnects branch sites

• Branch sites must communicate through the central site

• It is a version of the star topology

Multiple Choice

Which WAN topology requires every end system to be interconnected to every other system, and what is a significant drawback of this topology?

• Mesh topology; high administrative and physical costs

• Point-to-point topology; limited scalability

• Hub and spoke topology; single point of failure

• Star topology; limited redundancy

Fill in the Blanks

In multiaccess LANs, end devices are typically connected to a central intermediary device called an

switch.

Multiple Choice

What is the main advantage of using a point-to-point connection via serial connection in a network setup?

• It allows direct communication between two devices, reducing latency.

• It supports multiple devices on the same connection.

• It is less expensive than other types of network connections.

• It provides wireless connectivity.

Open Ended

How would you describe the difference between WAN and LAN topologies based on what you learned in this session?

Multiple Choice

What is one key function of the datalink layer in a network?

• Error detection and correction

• Routing packets between networks

• Encrypting data for security

• Assigning IP addresses