OSI Reference Model provides a framework for discussing network operations and design

Correct Answer: One of two sublayers of the data link layer of OSI reference model, as defined by the IEEE 802 standard This sublayer is responsible for maintaining the link between computers when they are sending data across the physical network connection

Correct Answer: Virtual channel is normally a connection from one source to one destination, although multicast connections are also permitted The other name for virtual channel is virtual circuit

Correct Answer: Along any transmission path from a given source to a given destination, a group of virtual circuits can be grouped together into what is called path

Correct Answer: Packet filter is a standard router equipped with some extra functionality The extra functionality allows every incoming or outgoing packet to be inspected Packets meeting some criterion are forwarded normally Those that fail the test are dropped

Correct Answer: Sending a message to a group is called multicasting, and its routing algorithm is called multicast routing

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: FALSE

Explanation:

MAU is Multistation Access Unit

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

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