NETWORK LAYER (LAYER 3)

Question 1

NETWORK LAYER (LAYER 3)

Answer 1

CONCERNED WITH ROUTING AND FORWARDING TRAFFIC USING LOGICAL ADDRESSES

Question 2

PACKET SWITCHING

Answer 2

DATA IS DIVIDED INTO PACKETS AND THEN FORWARDED

Question 3

CIRCUIT SWITCHING

Answer 3

A DEDICATED COMMUNICATION LINK IS ESTABLISHED BETWEEN THE TWO DEVICES

Question 4

MESSAGE SWITCHING

Answer 4

DATA IS DIVIDED INTO MESSAGES WHICH MAY BE STORED AND THEN FORWARDED

Question 5

ROUTING PROTOCOLS

Answer 5

DECIDES HOW DATA FLOWS ACROSS A NETWORK AND HOW ROUTERS COMMUNICATE THAT DATA

Question 6

DYNAMIC ROUTING PROTOCOLS

Answer 6

ENABLES ROUTERS TO SHARE AND UPDATE ROUTE INFORMATION

Question 7

PACKET REORDERING

Answer 7

ENSURES DATA PACKETS ARRIVE AND ARE REASSEMBLED IN THE CORRECT ORDER

Question 8

INTERNET CONTROL MESSAGE PROTOCOL (ICMP)

Answer 8

SENDS ERROR MESSAGES AND OPERATIONAL INFORMATION TO IP DESTINATIONS

Question 9

PING

Answer 9

MOST COMMONLY USED ICMP

Question 10

TRACEROUTE

Answer 10

TRACES THE ROUTE OF A PACKET THROUGH THE NETWORK

Question 11

MULTI-LAYER SWITCH

Answer 11

SWITCH THAT COMBINES LAYER 2 SWITCH AND LAYER 3 ROUTER FEATURES