1. What is the difference between layer 2 and layer 3 in the OSI model? 2. What is the difference between a hub, switch, and router? 3. What is a VLAN? 4. What is the difference between TCP and UDP? 5. How do you distinguish a DNS problem from a network problem? 6. What is a runt, Giant, and collision? 7. What is a broadcast storm? 8. What is the purpose of VRRP? 9. What is a VPN? 10. What information about a peer would I need to establish a VPN? 11. What is a full-class C in CIDR notation? 12. What is a default route? 13. What is a metric? 14. What is a MAC address? 15. What is ARP/RARP? 16. Describe a TCP connection sequence 17. What is MTU? 18. What other TCP setting can you modify besides MTU to shorten packets?
Subnet the class C network address 220.127.116.11 into eight subnets. Why are the ‘all ones’ and ‘all zeroes’ subnets not used ?
what happens when two consigitive ports of switch are connacted using one cross cabel with each other?(how the whole network gets down)
how many layers are there in network & explain in simple of alll layers?
Explain Various fields in Ethernet frame format
What is the difference between boundary level masking and non- boundary level masking? Give examples
Which of the following is not property of dbms.
what are the characteristic of switch and hub ?
Explain various cabling techniques used in IEEE 802.3 standard.
Why is IP called ‘best-effort delivery’ protocol?
how can use the process id in ospf?
Explain Token ring