What is the minimum and maximum length of the header in the TCP segment and IP datagram?

Correct Answer: The address resolution protocol (ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP query packet that includes the IP address of the receiver The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical address

Correct Answer: In token Ring , hub is called Multistation Access Unit(MAU)

Correct Answer: FALSE

Explanation:

MAU is Multistation Access Unit

Correct Answer: Routable protocols can work with a router and can be used to build large networks Non-Routable protocols are designed to work on small, local networks and cannot be used with a router

Correct Answer: TRUE

Explanation:

It provides a framework for discussing network operations and design

Correct Answer: ICMP is Internet Control Message Protocol, a network layer protocol of the TCP/IP suite used by hosts and gateways to send notification of datagram problems back to the sender It uses the echo test / reply to test whether a destination is reachable and responding It also handles both control and error messages

Correct Answer: Bit rate is the number of bits transmitted during one second whereas baud rate refers to the number of signal units per second that are required to represent those bits baud rate = bit rate / N where N is no-of-bits represented by each signal shift

Correct Answer: The degeneration of a signal over distance on a network cable is called attenuation

Correct Answer: Physical layer

Explanation:

Hubs are specified or operate at Layer1 i.e, the physical layer in the OSI model. Hubs regenerate electrical signals. A hub sends data packets (frames) to all devices on a network, regardless of any MAC addresses contained in the data packet.

Correct Answer: TCP

Explanation:

Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.