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VIVA FOR NPM LAB : EX 1 AND 2
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* Indicates required question
20. If a machine is newly introduced in the network what protocol is responsible for assigning the IP address?
1 point
TCP
UDP
DHCP
DNS
Clear selection
21.The port number ranging from 1024 to 49151are called....
1 point
Well defined
Reserved
Dynamic
Optional
Clear selection
22. -------------function is used to line of data
1 point
readnline()
readn()
writen()
readline()
Clear selection
23. Argument of inet_aton( )
2 points
const char*strptr
const char*strptr, struct in_addr*addrptr
struct in_addr addr
struct in_addr*addrptr,const char*strptr
Clear selection
19. If fork() is called 4 times, the number of child created will be----
*
1 point
4
32
2
16
Roll No
*
Your answer
1. struct sockaddr _in is defined in the header file
1 point
<sys/socket.h>
<sys/types.h>
<netinet/in.h>
<netdb.h>
Clear selection
2. 4F52 in little Endian would be?
1 point
4F is stored at storage address 1000 and 52 will be at address 1001
4F is stored at storage address 1001 and 52 will be at address 1000
25 is stored at storage address 1001 and F4 will be at address 1000
None of the above
Clear selection
3. The function for inet_aton()
1 point
inet_aton(const char *strptr)
inet_aton(struct in_addr inaddr)
inet_aton(const char *strptr, struct in_addr *addrptr)
inet_aton(struct in_addr*addrptr, const char *strptr)
Clear selection
4. What semantics should be used for unreliable connectionless message
1 point
SOCK_STREAM
SOCK_RAW
SOCK_DGRAM
SOCK_SEQPACKET
Clear selection
5. Which of the following is not supported by Windows?
1 point
SOCK_RAW
SOCK_LOCAL
SOCK_STREAM
SOCK_SEQPACKET
Other:
Clear selection
6. Write the function for bind()?
2 points
Your answer
7. If IP Address is local IP ADDRESS and port number is zero means?
2 points
Kernel:IP and port number
Kerne:IP and process: Port number
Process: IP and Kernel:Port number
Process:IP and port number
Other:
Clear selection
17. Identify the correct order in which a server process must invoke the function calls accept, bind, listen, and recv according to UNIX socket API.
1 point
listen, accept, bind recv
bind, listen, accept, recv
bind, accept, listen, recv
accept, listen, bind, recv
Clear selection
18. Give the socket pair of the above connection with and client port as 100.
*
2 points
{
206.168.10.111:100
,
13.1.11.206:150
}
{
206.168.10.111:150
,
13.1.11.206:100
}
{
13.1.11.206:100
,
206.168.10.111:150
}
{
13.1.11.206:150
,
206.168.10.111:100
}
1 point
Option 1
Clear selection
8. What does backlog in listen() stands for?
1 point
Minimum no. of connection that should be queued for this socket
Maximum no. of connection that should be queued for this socket
Number of process in incomplete buffer
Number of process in complete buffer
Other:
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9.Socket descriptor returned by accept() is called listening socket.
1 point
True
False
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10.getsockname() is used to
1 point
Get local IP address and port number of client assosciated with client
Get local IP address and port number of client assosciated with socket
Get local IP address and port number of client assosciated with server
None of the above
Other:
Clear selection
11. Which of the following is a hard error?
1 point
ETIMEOUT
ECONNREFUSED
EHOSTUNREACH
ENETUNREACH
Other:
Clear selection
12. ________ is the state in which server side still sends data to client which wants no more data further
1 point
CLOSE_WAIT
Half close
ESTABLISHED
FIN_WAIT
Other:
Clear selection
13.How many packets are used for connection establishment?
1 point
5
4
3
2
Clear selection
14. sa_family_t is usually assigned_______?
2 points
16-bit integer
32-bit integer
8-bit integer
48-bit integer
Other:
Clear selection
15. Write the syntax for accept function
2 points
Your answer
16.Using connect() function the client moves from.........on success of connect()
1 point
CLOSED->SYN_SENT->ESTABLISHED
SYN_SENT->ESTABLISHED->SYN_RECEVIED
SYN_RECEIVED->ESTABLISHED->SYN_RECEVIED
FIN_WAIT_1-> FIN_WAIT_2->TIME_WAIT->CLOSED
Other:
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