2.1.8

In a contention-based MAC system, such as that used by Ethernet, what are the consequences of adding more nodes to the network? (Select two.)

Collisions become more frequent.

The effective data rate is reduced.

What type of transmission is available with the contention-based MAC system utilized by Ethernet?

Half-duplex transmission

What is the main advantage of using fiber optic cable over copper cable?

Higher bandwidth

A school is planning to expand its network to accommodate new classrooms and administrative offices. The existing network infrastructure is based on the 100BASE-TX Fast Ethernet standard with a combination of hubs and switches, utilizing both UTP-based horizontal links and fiber optic backbones.

The expansion will require the addition of 50 new workstations, which will be distributed across various locations within the school, some of which are 90 meters away from the nearest network device.

The IT team is considering the best approach to integrate these new workstations into the existing network while ensuring optimal performance and compatibility with potential future upgrades.

What should the IT team prioritize to ensure the successful integration of the new workstations into the existing 100BASE-TX Fast Ethernet network in the MOST effective way?

Replace all existing hubs with switches to reduce collisions.

A network administrator notices that the data transfer rates between devices in a 100BASE-TX Fast Ethernet network are not reaching the expected 100 Mbps. The network uses switches, and all devices support Fast Ethernet.

What could the network administrator enable to improve the data transfer rates to the expected 100 Mbps?

Full-duplex mode on all devices

A company is upgrading its legacy network infrastructure. The existing network is based on 100BASE-TX Fast Ethernet with a mix of hubs and switches. The IT manager wants to improve network performance while maintaining compatibility with older devices that only support 10 Mbps Ethernet interfaces.

What feature should the IT manager ensure the new network devices support to maintain compatibility with older devices?

Autonegotiation

Which of the following correctly describes the components of the convention used in naming Ethernet media specifications? (Select three.)

A designator for the media type.

The speed or bit rate in megabits per second (Mbps) or gigabits per second (Gbps).

The signal mode (baseband or broadband).

Which of the following best describes 10BASE-T network cabling?

Works at 10 Mbps (10), uses a baseband signal (BASE), and runs over twisted pair copper cabling

Network data transfer works by modulating the properties of a transmission medium to encode a signal.

Which of the following BEST describes that process?

The transmission of signals as electric current, infrared light, or radio waves

For what reason might a company deploy 10/40 GbE Ethernet in its network?

To support very high bandwidth data transfers