.
When using POP, clients typically connect e-mail server only for the downlad duration. When using IMAP4, clients stay connected as long as the user interface is active.
When using IMAPV4, clients typically connect e-mail server only for the downlad duration. When using POP, clients stay connected as long as the user interface is active.
When using IMAPV4, clients typically connect e-mail server only for the downlad duration. When using POP, clients stay connected as long as the user interface is inactive.
None of the above
Application Layer
Presentation Layer
Transport Layer
Session layer
Transport layer
Data Link Layer
Network Layer
Physical Layer
Physical Layer
Session Layer
Data Link Layer
Application layer
Flow control
Sequence
Acknowledgement
Retransmition
Application server
Database server
Proxy server
Mail server
Hierarchical schema
Network schema
Relational schema
All of the above
16
17
18
None
Large computer system is available
Only a small computer system is avilbale
Only a few transactions are involved
None of the aobve
Storage space is wasted
Changing the data in one spot will cause data inconsistency
In can be more easily accessed
Both a and b
Hierarchical MIS structure
Distributed MIS structure
Centralized MIS structure
Decentralized MIS structure
47.5 min
50 min
500 min
49 min
7 miles/hr
5 miles/hr
6 miles/hr
None
69
71
70
73
166600
160600
160666
170600
4 and 11
4 and 13
4 and 12
None
10
-10
0
1
E
A
C
D
4
1
3
2
Option 1
Option 2
Option 3
Option 4
Option 1
Option 2
Option 3
Option 4
41
42
40
None
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