Q1. What is the unit of data transferred at Layer 2 of the OSI model? 🤔
- Packet
- Segment
- Frame
- Datagram
Answer: Frame
Q2. A network technician can ping the IP address of a remote web server but cannot successfully ping its URL address. Which network service is most likely experiencing an issue? 🌐
- DHCP
- DNS
- ARP
- NAT
Answer: DNS
Q3. A network engineer observes that network throughput is lower than the expected bandwidth for a critical application. Which three factors could influence this difference? 📉
- The amount of traffic, the type of traffic, and the latency created by network devices.
- The sophistication of encapsulation, the reliability of the backbone, and the bandwidth of the WAN connection.
- The number of network devices, the type of cabling, and the power of the server NIC.
- The DNS server response time, the DHCP lease duration, and the STP convergence time.
Answer: The amount of traffic, the type of traffic, and the latency created by network devices.

Quiz: How well do you know internet infrastructure?

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