What connectivity device typically work at the Application layer of the OSI model?
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what is L1 and L2 support
12 Answers Banking, Cognizant, Computronics, CSC, Goldman Sachs, HCL, HP, L&T, Orange, Wipro,
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What is the Multicast address used in STP ?
senario: There are two switches connected via trunk port.One end station is connected to each switch via access port. All the ports are in same VLAN.All the ports have same speed 1Gbps.Start sending 1Gbps traffic from one end station to other. Determine percentage of traffic received by destination end station.
Explain client/server?
What is the maximum number of characters you can have in a FQDN ?
How to securing a computer network?
4 functions that ICMP protocol performs are: a. echo (ping) b. telnet c. rcp d. rlogin e. rpc f. TTL announce (used by traceroute) g. source quench message (during congestion) h. network error announcement
What is tunnel mode?
Which protocol is used to share file systems between solaris machines ?
Explain about vpn?
Which layer performs basic functions such as file transfer, virtual terminal and job transfer are realized (SMTP, FTP, telnet, NFS, SNMP).
Networking Protocols 
