OM
1.How ping works?How Trace route works?
2.How a box decide whether to switch or route upon receiving a packet?
3.What is watchdog
timer in GDB? Why we need it?
4.What are flags
available in TCP header? Why we need PSH and URG(difference b/w
them)?
5.TCP ack. No and seq.
Num .. Explain.
6.What is SYN
flood?what happens if SYN attack happens on a server?how to protect
server from such attacks?
7.What is Firewall?
What is ACL?What is NAT? Difference b/w Firewall and ACL?
8.In a sorted array we
have numbers 1-10 and another variable a=5. Get two elements form
array print if addition of those two elements are equal to variable
a(=5).
9.What is priority
Inversion/dead lock/spin lock/page trashing/Page fault?
10.Any idea about
pinned pages(Linux)?
11.Difference amoung
Interrupt ,Signal and Exception?
12.What is system call
and why we need those?
13.Printing address of
a variable in Kernel mode will gives Physical address or virtual
address?
14.How Routing decision taken by a router(data structures lookup used)?
15.What is buffer
corruption/overflow?
16.C memory layout? Why
we need BSS?
17.How DPDK differ with
my normal packet processing? (Questions about current proj)
18.How can we identify
whether ping is failed on fwd path or reverse path?in case of fail?
19.Conditions for IP
pak fragment and reassemble?
20.
Socket programming
sys_calls()?
21.Memcpy vs memmov()
vs strcpy()?
