3.2.4 Check Your Understanding – Protocols Answers

1. BGP and OSPF are examples of which type of protocol?

  • network communication
  • network security
  • routing
  • service discovery

Explanation: BGP and OSPF are routing protocols. They enable routers to exchange route information to reach remote networks.

2. Which two protocols are service discovery protocols? (Choose two.)

  • DNS
  • TCP
  • SSH
  • DHCP

Explanation: Service discovery protocols, such as DNS and DHCP enable automatic detection of service. DHCP is used to discover services for automatic IP address allocation and DNS for name-to-IP address resolution services.

3. What is the purpose of the sequencing function in network communication?

  • to uniquely label transmitted segments of data for proper reassembly by the receiver
  • to determine if data is corrupted during transmission
  • to ensure data flows at an efficient rate between sender and receiver
  • to guarantee delivery of data

Explanation: Sequencing uniquely identifies or labels each transmitted segment with a sequence number that is used by the receiver to reassemble the segments in the proper order.

4. This protocol is responsible for guaranteeing the reliable delivery of information.

  • TCP
  • IP
  • HTTP
  • Ethernet

Explanation: Transmission Control Protocol (TCP) manages the conversation between end devices and guarantees the reliable delivery of information.

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