W3 - Network Access (SY25-26/C305-301i)

Multiple Choice

When you plug an Ethernet cable into your laptop to get an internet connection, which layer of the OSI model is primarily involved in the physical connection?

• Data Link Layer

• Network Layer

• Physical Layer

• Transport Layer

Multiple Choice

You are watching a movie in 4K resolution on a streaming service, and it loads without any buffering. This is a good real-life example of:

• Low latency

• High bandwidth

• Low throughput

• Attenuation

Multiple Choice

A large company decides to use fiber-optic cables as the backbone for its campus network. A key advantage of this choice is that the cables are immune to:

• Attenuation over short distances

• The need for a Network Interface Card (NIC)

• Crosstalk from adjacent cables

• Electromagnetic Interference (EMI)

Multiple Choice

A network manager wants to connect two buildings that are a kilometer apart. The best choice of physical media for this connection would be:

• Coaxial cable

• UTP cable

• STP cable

• Fiber-optic cable

Multiple Choice

Which type of wireless device concentrates wireless signals from users and connects to the existing copper-based network infrastructure?

• Wireless NIC adapter

• Wireless-N Router

• Wireless Access Point (AP)

• Range Extender

Multiple Choice

What is the function of the Data field within a data link layer frame?

• To contain the frame payload, which includes the packet header, segment header, and data.

• To identify the beginning and end of the frame.

• To indicate the source and destination nodes.

• To identify the Layer 3 protocol.

Multiple Choice

Which of the following is a type of WAN physical topology that provides high availability by interconnecting every end system to every other system?

• Point-to-Point

• Hub and Spoke

• Star

• Mesh

Lesson Assessment

Multiple Choice

What is the function of the Logical Link Control (LLC) sublayer?

• It provides data link layer addressing.

• It defines the media access processes by the hardware.

• It communicates with the network layer and identifies the Layer 3 protocol.

• It communicates with wireless technologies like Wi-Fi and Bluetooth.

Multiple Choice

Which of the following describes a logical topology?

• The physical cabling of a network.

• How a network transfers frames from one node to the next.

• The number of devices connected to a network.

• The type of cables used in a network.

Multiple Choice

Which of the following is a common issue with copper cabling that causes the signal to deteriorate the longer it travels?

• Crosstalk

• Attenuation

• Electromagnetic interference (EMI)

• Radio frequency interference (RFI)

Multiple Choice

You are in a video conference call, and there's a noticeable delay between when someone speaks and when you hear them. This delay is a result of:

• Latency

• Bandwidth limitations

• Throughput issues

• A physical layer collision