What port number is used for FTP control?

More Questions from CISCO Certification

• which IOS command enables access to high-level commands?
• When data is encapsulated , which is the correct order?
• Which layer of the OSI model offers three different modes of communication : Simplex, half duplex, and full duplex?
• A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?
• When a station sends a transmission to the MAC address ff : ff : ff : ff : ff : ff, what type of transmission is it?
• If a hub has three computers connected to it, how many broadcast and collision domains is the hub creating?
• Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing , maintaining , and terminating virtual circuits; transport - fault detection and recovery; and controlling the flow of information?
• Which layer ensures the trustworthly transmission of data across a physical link and is primarily concerned with physical addressing, line discipline, network topology, error notification, ordered delivery of frames, and flow control?
• Which of the following connection mechanism is used by Ethernet?
• Which part of a MAC address is called the organizationally unique identifier(OUI)?

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