Difference between bit rate and baud rate.?

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: The header should have a minimum length of 20 bytes and can have a maximum length of 60 bytes

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: 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.

Correct Answer: 32 bits

Explanation:

Internet Protocol version 4 (IPv4) which defined an IP address as a 32-bit value

IPv4 is in contrast to IPv6, which defined an IP address as a 128 bits value.

Correct Answer: 48

Explanation:

MAC - Media Access Control, address is a globally unique identifier assigned to network devices, and therefore it is often referred to as hardware or physical address.

 

MAC addresses are 6-byte (48-bits) in length, and are written in MM:MM:MM:SS:SS:SS format.