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?
Answer Posted / arun
1. layer 2 deals with frames and layer 3 deals with
packets. layer 2 uses mac and layer 3 uses ip appletalk ipx
etc.
2.hub:serves one port as input other ports as output in
data forwarding.
switch:breaks collison of which port as output from
incoming port (from their mac table)within lan.
router:it is more intelligence to decide easiest and
cheapest path from source of one n/w to desti of other
network
3.segregation of lan may be for security,avoidance of
cd,bandwith consumption
4tcp-wired conn and reliable of datatx
udp-wireless conn and non reliable of data tx.
Is This Answer Correct ? | 13 Yes | 2 No |
Post New Answer View All Answers
What is silly window syndrome
Explain Network Topologies and their uses.
cat 5E cable with brown colour cable what will be its speed in kbps for internet?
How to make a port to a dedicated port through dll registration in a windows system
What is redirector
1.Explain the main purpose of IP address? 2.List two purposes for a web browser? 3.Explain an advantage and a disadvantage of multiple search engines? 4.Describe two roles of Internet Services Providers (ISPs)?
Explain network layer in ATM,
What is OSPF
Compare satellite with fiber as a communication medium and enumerate the application areas where satellite still holds a niche(or special)marker.
Explain Various fields in Ethernet frame format
What MAU?
Differentiate between Baseband co-axial cable and broad band coaxial cable
What is Brouter (Bridge Router)
Explain different kinds of Switching techniques.
What is attenuation